P0562 in 2026: Battery, Alternator, Ground or Sensor — What 201 Documents and 3,633 Complaints Show

P0562 is a code about a number, not a part. A car has many computers, each measures the voltage that reaches it, and each has a floor below which it stops trusting its own work. P0562 — printed by GM as "DTC P0562 System Voltage Low" and by Stellantis as "Battery/System Voltage Low" — says a module measured the 12-volt system below that floor. It does not say why. The module may be the engine computer, the brake module, the transmission computer or a hybrid-system module. The usual feel is a battery or charging light, a "Service Charging System" or "Battery Saver" message, brake or steering warnings and, in some cars, a stall or a no-start.

This page answers whether P0562 is the battery, the alternator, a ground or a sensor, whether you can drive, how long until the car stalls, and what it costs. In short: the carmakers' papers that print the code start with the battery clamps and cables, the fuse block, the module's grounds, a battery test, software and anything that draws power while the car sleeps (papers on the wider charging family add a battery sensor); they say not to replace a brake module on the code alone (a 2024 GM truck bulletin), and none calls for an alternator on the code alone; a few cars have a free recall or program. The money runs from $0 to a few hundred dollars for one part, and to about $1,000 when several parts are paid for at once (32 owner figures, median $1,000).

What the page rests on. NHTSA's index of carmaker papers lists 1,543 entries on these words; we pulled 223; one had no PDF, and the 222 files that remain are 201 distinct documents (plus the filings of 10 recalls), and 3,633 federal owner complaints received from January 2015 through early October 2026, of which 2,971 describe a low-voltage or charging fault on the owner's car and 662 do not. Only 18 complaints print the code P0562, so read every count as "complaints describing a low-system-voltage or charging-system fault", not "P0562 complaints". Counts are complaints, not cars; nothing is a failure rate. No file prints P0560 or P0564, and P0561 appears only as P056100 in one Volvo alternator paper and Audi 48-volt papers, so this page stays with P0562 and its sister P0563 (voltage too high) where the documents tie them. How we counted, and what was left out, is in the method note and in the method section at the end. Heavy trucks, buses and motorcycles are out of scope.

For the road numbers on batteries and alternators in general, our study of 10,776 battery and alternator complaints comes first; this page does not repeat it.

🟢 marks a claim resting on a document in the Sources section; ⚪ marks a shop-price estimate from our repair guides. Owner-reported figures are what people told NHTSA, published with NHTSA complaint numbers; every complaint count comes from the 3,633 sorted twice and published under the sorting rules, and the documents are listed with their reading status.

Words on this page. Papers: the carmakers' repair bulletins and recall filings that NHTSA publishes. DTC: a fault code. Flash: a software update. Ground: the strap that returns current through the body or engine. B+: the alternator's main output terminal, where the thick battery cable is bolted. Battery monitor (BMS, battery sensor): the sensor on the negative cable that tells the car the battery's charge. ICCU, DC/DC converter: the unit that charges the 12-volt battery from the car's larger (high-voltage or 48-volt) battery. Campaign: a maker's own free-repair program.

I built PulsCar after a $380 "full diagnostic" in Phuket in 2025 led to roughly $6,000 over six months across several shops (the story is on the About page).

What P0562 says: a module saw low voltage, not a dead battery

What the code compares. 🟢 GM: "If no issues are found, then follow SI Diagnostic Information and Procedures for DTC P0562 System Voltage Low." Stellantis, on the 2014 Cherokee: "NOTE: If battery system DTC P0562 Battery/System Voltage Low or P0563 Battery/System Voltage High are set, normal charging system diagnostics needs to be performed." A Ram diesel flash lists "P0562 - Battery Voltage Low."

Any module can set it. 🟢 Ford's message for the 2020-2021 Explorer and Aviator hybrids, the 2021 Corsair hybrid, F-150 PowerBoost and Mustang Mach-E says the hybrid-system codes those modules set (P0A23, P0A6F and others) "will often occur at vehicle key-on and may be difficult to reproduce" and: "Before replacement of the SOBDMC or SOBDMB, diagnose any low voltage DTCs (P0562, U3003) in other modules in the 12V system." 🟢 GM's brake papers: "Technicians may find DTC P0606 set in the Electronic Brake Control Module (EBCM) along with either DTC P0562 or P0563 set current or in recent history." The pairing is in our P0606 guide; here it matters because the fix starts with the battery.

What you feel. 🟢 GM's PIT6347A (March 2025) lists an ABS light, the engine light, "Service Brake System", "Service StabiliTrak" or a change in brake pedal effort, and says: "This condition is due to a low voltage condition." (version B, March 2026, names a brake-module anomaly that is more prevalent with a lower battery state of charge) Among the owners who wrote to NHTSA, 1,329 of 2,971 complaints describe a stall (45%), 941 a car that would not start (32%) and 541 a recall, campaign or bulletin, or being told there is none (18%).

Is P0562 usually a bad alternator, and should the alternator be the first part you buy? PulsCar went through 3,633 federal complaints from 2015 to early October 2026 that our searches found on P0562 or low-voltage and charging wording, each sorted twice by the same written rules: 2,971 describe it on the owner's car. The alternator ends as the named or replaced part in 360 of them (12%), the battery in 193, a wire, cable or ground in 104, a module, sensor or software in 118 and something that drained the battery in 53, while 1,567 name no cause. The papers are less alternator-centred: none that print P0562 calls for one on the code alone, and in papers on charging faults Volkswagen and Hyundai print a do-not-replace line for it while Volvo recommends the voltage regulator instead. Test the battery, the cables and the voltage first.

First: P0562, P0563, P0621, P2504 … which code and which module is yours

Read the exact code, and ask which module reported it, before you buy anything: the same fault family carries different labels in different makers' papers.

The labels differ by maker. 🟢 Honda: "The Charging System indicator is on with DTC P154A (battery sensor internal failure)." 🟢 Mazda, for a transmission computer: "Some customers may complain about a MIL ON with DTC P0882:00 (TCM Power Supply Voltage Low)." and "Loose battery terminals may be the cause." Search traps: many owners describe the event with no code, as "Service Charging System", "Battery Saver Active" or "Check Charging System". Of the 2,971, only 18 print P0562, so do not rule out this fault because your paperwork has no code.

The maker atlas: who prints a cable, a ground, software, a module or a recall

A Silverado, a Bronco Sport and a Kia EV6 with the same warning are on different roads. Bulletin numbers are linked to NHTSA's PDF.

GM's brake-module papers are the clearest P0562 papers in the file. 🟢 PIT5634 says to check both clamps, the cables, the battery fuse block, a battery test and the module's grounds before any reprogramming or parts. The 2024 heavy-duty bulletin changed its mind: every version says not to replace the brake module, but version 1 (March 2024) blamed a low battery or a high voltage while charging and said to test the battery, while versions 2 to 4 (June 2024 to January 2025) say "The cause of the condition may be that a software diagnostic anomaly in the EBCM." Ask which version the shop is following.

In 10 of the 27 documents that print P0562 it is only a listed or related code. In the Stellantis flashes it sits in a list of codes whose warning light an update is meant to reduce; in the Audi 48-volt papers it is one of several codes the starter-generator system sets together (the Volvo 48-volt papers are counted as direct). Neither says the battery or the alternator is at fault.

The do-not-replace lines: what the papers tell a shop to hold back

None of these says the part is never the cause; each says that, for the complaint described, something comes before it.

• GM brake module with P0606 and P0562 (24-NA-050): 🟢 "Do not replace the Electronic Brake Control Module (EBCM) for this condition." Version 1 adds a battery test, and versions 2 to 4 say "Reprogram the EBCM."; GM's later tip PIT6522 prints "Do NOT replace K160 EBCM" once the codes stay away after a clear, and "Replace the K160 EBCM if the concern remains after all diagnostic procedures have been completed."
• GM Silverado and Sierra 1500 (PIT5634): 🟢 "Before performing any reprogramming events or replacing any parts, perform the following checks:" (clamps, cables, fuse block, battery test, grounds).
• Volvo: 🟢 for the 48-volt cars, "Do not replace the ISGM. The ISGM is just a messenger to detect issues in the 48-volt system."; for the older alternator paper, "The majority of replaced alternators have had no faults with the alternator itself.", with only the voltage regulator replaced unless the slip rings show heavy wear.
• Volkswagen (2011-2015 Jetta, 2012-2015 Passat and Beetle): 🟢 "start by inspecting the SA1 200 amp fuse in the SA fuse block. DO NOT replace the generator."
• Hyundai Santa Fe 3.3L (campaign 976): 🟢 "Alternator replacement is required only if alternator voltage test is less than 14.0V", and, in the same paper, only with oil leaking at the valve-cover joint.
• Ford hybrids and the Mach-E (SSM 50151): 🟢 "Before replacement of the SOBDMC or SOBDMB, diagnose any low voltage DTCs (P0562, U3003) in other modules in the 12V system."

The 10-minute check

1. Write down how it started (2 minutes). After a jump-start, a new battery, a software update, a long park, or on its own? Which lights and messages: battery, "Service Charging System", "Battery Saver", brakes, "Stop Safely Now"? Read the codes with a reader that shows maker codes and, if it can, which module set P0562. Do not clear them before a shop sees them (our advice). GM notes the condition is more common in cold weather and with a lower battery charge, so say the weather.

2. Look at the battery and its clamps (3 minutes). Swollen case, crust on the posts, a clamp that moves? 🟢 GM's PIT5634 asks that both clamps are fully installed and tight and that neither cable spins on its post. Torque to your manual (our advice). A ⚪ terminal clean and tighten is $0 to $20 in our battery replacement guide.

3. Get the battery tested (free). 🟢 GM: "Test the battery using the GR8/DCBS and replace as necessary." ⚪ Parts stores test the battery and the charging system free in about 10 minutes (our alternator guide); how to test a car battery has the meter version.

4. Read the running voltage (2 minutes). Measure at the battery posts with the engine idling (our advice; keep hands and leads away from the belt and fan). ⚪ Our alternator guide reads 13.5 to 14.7 volts running as healthy. 🟢 Hyundai's campaign test (headlamps on, no other loads, meter on the alternator's B+ terminal) wants 14 volts or higher; Volvo prints a normal 13.5 to 14.8. Two cautions: 🟢 Stellantis says "it is not uncommon for the voltage at the Alternator stud to be equal to, or close to Battery voltage at idle.", on Stellantis cars with Smart Charging and a battery sensor, so (our advice) a single low reading is a reason for a shop test, not for a new alternator; 🟢 GM says a voltmeter moving between 12 and 14 volts on its 2005-2014 full-size trucks and SUVs with regulated voltage control is "normal system operation and NO repairs should be attempted."

5. Take anything extra off the car (1 minute). Dash cameras, phone chargers and other add-ons (GM's PIT6347A lists them; Route 4).

6. Find your VIN (2 minutes). A dealer with your VIN is the recall lookup. Ask by number: 14V-634 or 17V-435, 17V-418, 24V-200, 24V-267, 25V-019, 26V-248, or the Hyundai and Genesis campaigns.

Six P0562 situations, and which is yours

"A Silverado, Sierra, Escalade, Tahoe or Yukon with a brake or StabiliTrak message, P0606 and P0562." → Routes 2 and 3; the pair is in our P0606 guide.

"A 2011-2014 Chrysler 300, Charger, Challenger or Durango, or 2012-2014 Grand Cherokee, with a battery light or a stall." → Route 1, then Route 5.

"A Hyundai Ioniq 5 or 6, Genesis G80 Electrified or GV60, or Kia EV6 with a 'stop the vehicle' or 'Stop vehicle and check power supply' message." → Route 1, and the tow rule above.

"A Bronco Sport, Maverick or Bronco with 'Check Charging System'." Water in a connector, or recalls. → Routes 1 and 3.

"A 2013-2016 Honda Accord with the Charging System indicator." → Routes 1 and 3.

"A car no paper covers: a new battery that keeps dying, a light at idle." VIN, clamps, battery test, draw test, then an alternator. → Routes 2, 4 and 5.

The P0562 price ladder, from the bottom up

Our guide figures are typical shop prices; owners' figures include dealer bills, quotes and cars that kept failing, so the ranges run wider and the top of each is higher: the $1,958 battery is a 2019 Porsche Cayenne invoice, the $13 a ground-strap part and the $5,000 a quote for all new wiring on a 2000 Durango. The expensive mistake is paying for the battery, the alternator and a module one after the other without a test that says which one failed (our advice).

The five P0562 routes, cheapest first

The code is a statement about a voltage. Each route below is a place the voltage can be lost, dragged down or misread, ordered by what it costs to rule out. Owner counts come from the 2,971 relevant complaints; "came back" means the owner says the same light, code or symptom returned or the repair did not hold. The alternator is the most-named cause in the complaints (360 of 2,971, 12%, and 43% of the 828 that name a battery, an alternator, a wire, a module or a drain) but sits last, because it costs the most to get wrong and the papers say test before replacing. Complaints come mostly from owners whose trouble did not end, so none of these shares is a forecast for your car.

Route 1 · A free repair: recall, campaign or special coverage — $0 when it applies

What it is. The maker has printed a defect on certain cars and pays for the repair where your VIN is covered. Some of these are recalls, some campaigns; the status of each is in the coverage file below.

What the documents say.

• 🟢 Chrysler 300, Challenger, Charger, Durango (2011-2014) and Jeep Grand Cherokee (2012-2014), certain engines and build dates: recall 14V-634 "If the alternator fails, the vehicle may stall without warning, increasing the risk of a crash." The cause is "thermal fatigue in the silicon diode within the alternator rectifier bridge". Recall 17V-435 widens it: "dealers will inspect the alternator and depending on the part number, will replace the alternator, if necessary, free of charge." and "There is also the possibility that the alternator may short circuit, increasing the risk of a fire."
• 🟢 Honda Accord (2013-2016): recall 17V-418 "The case for the battery sensor, part of the battery management system, may allow water to get in, potentially causing an electrical short." An electrical short increases the risk of a fire; Honda's letter says the charging indicator "may illuminate" first and "Honda suggests that you park the vehicle outside until the recall repair has been performed."
• 🟢 Ford Bronco Sport and Maverick: recall 24V-267 "An undetected low battery charge can result in a loss of electrical accessories such as hazard lights, or cause a loss of drive power, increasing the risk of a crash." The fix is a software update of two modules. Recall 25V-019 "The 12-volt battery may experience degradation and suddenly fail."
• 🟢 Kia EV6 (2022-2024), Hyundai Ioniq 5 and 6, Genesis G80 Electrified and GV60: recall 24V-200 "The Integrated Charging Control Unit (ICCU) may become damaged and stop charging the 12-Volt battery, which can result in a loss of drive power." Kia's dealer letter: "If this occurs, the customer should have their vehicle towed to the nearest authorized Kia dealership immediately." Hyundai's campaign 997: "large messaging in the vehicle's instrument cluster will appear and instruct the driver to stop the vehicle." Genesis's talk track: "please immediately stop your vehicle and have it towed to the nearest Genesis retailer. Do not attempt to drive the vehicle until the repair has been applied." The repair is a software update and, only if P1A9096 is stored, a new unit and, if the fuse inspects as blown, a new fuse.
• 🟢 Others: Hyundai Veracruz recall 20V-705 "An inoperative charging system can result in an engine stall, increasing the risk of a crash."; Nissan Sentra recall 10V-555, a battery cable end; GM eAssist recall 13V-173 "If these warnings are ignored, eventually the engine may stall and/or the vehicle may not start."; Subaru Crosstrek Hybrid recall WRD-23, a 12-volt harness terminal that "may corrode"; Jaguar Land Rover recall 26V-248 for a DC/DC converter, whose Part 573 prints "Consumer Advisories: Do Not Drive Park Outside" while JLR's own bulletin says it has issued no stop-drive instruction and that a red warning means pull over when it is safe. Our advice: follow the filing: do not drive it and park it outside, ask the dealer to check the VIN and tell you what to do, and pull over at once on a red warning.

What the owners report. 541 of the 2,971 complaints mention a recall, a campaign, a bulletin or a coverage, or being told there is none (18%), and 202 of them say the problem came back. Of the 360 alternator complaints, 162 are on the models and years of the two Chrysler recalls; 86 of those mention a recall or bulletin and 92 describe a stall. The record of a 2012 Dodge Charger that stalled at 35 mph with the battery light on reads "THE VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 14V634000 (ELECTRICAL SYSTEM)." A 2023 Ioniq 5 owner lists "12 volt battery low", "stop safely", "check electric vehicle system", "stop vehicle and check power supply", a replaced battery that changed nothing, and a tow.

The cheap cause that gets skipped. The lookup itself. A recall costs a phone call, only the VIN answers it, and a car can be inside the printed years and still not be on the VIN list while having the symptom.

Fix it yourself. The lookup only. nhtsa.gov/recalls lists safety recalls; campaigns and service updates need the dealer with your VIN. (Our advice: do not wait for a letter.)

At the shop — say this: "Please run my VIN for any recall, campaign, special coverage or warranty extension for the battery, the battery sensor, the charging system, the alternator or the DC/DC or charging unit, and write the answer on the repair order before any part is ordered."

Route 2 · The battery, the cables and the grounds — $0 to $20 yourself, $100 to $350 for a battery

What it is. The 12-volt supply is only as good as the battery and the clamps, cables, fuse blocks and ground straps that carry it. A weak battery, a loose clamp or a corroded ground can set the same low-voltage warning or code as a dead alternator.

What the documents say. 🟢 GM's PIT5634 puts the order: both clamps, the cables, the battery fuse block, a battery test and the module's grounds, then "If no issues are found, then follow SI Diagnostic Information and Procedures for DTC P0562 System Voltage Low." PIT6347B adds "Inspect the K160 BSCM's power and ground terminals for poor tension, crimps or backing out." 🟢 GM on the 2016 Cruze, with a stall, a no-crank or a battery light and P0622: "This condition could be caused by the main engine ground cable being loose." On the 2010-2012 Equinox and Terrain, for an HVAC that blows cold: "Recent field cases found the cause to be low system battery voltage due to corrosion at the starter connections." 🟢 Stellantis: "The concern could be caused by a loose cable attached to the Power Control Relay(PCR)." with P0562 and a no-start. 🟢 Jaguar: a main negative earth cable "can work loose due to the fitting and removal of the negative battery clamp".

What the owners report. 193 of the 2,971 complaints end at the battery (6%) and 104 at a wire, cable or ground (4%). Of the battery group, 93 (48%) would not start and 61 (32%) say it came back; of the wire group, 41 (39%) describe a stall and 35 (34%) a return. A 2013 Cadillac XTS owner measured "THE VOLTS MAKING IT TO THE CARE ARE 9-10 VOLTS." with a full battery. A 2006 PT Cruiser owner had the corrosion cleaned and the terminals replaced and tightened, and "FOR ABOUT FOUR MONTHS AFTERWARDS IT NEVER HAPPENED AGAIN."

The cheap cause that gets skipped. The clamp that turns on its post, and the ground nobody measured: of the 104 wire complaints, 29 mention a cable, 16 a ground and 12 corrosion. A new battery on a bad ground is a new battery with the same code.

Fix it yourself. The looking and the cleaning: swollen case, crust on the posts, a clamp that moves. Disconnect the negative first, scrub the posts and clamps, reconnect and tighten to your manual's torque (our advice), and get the free parts-store test. A voltage-drop test across a cable or fuse is shop work unless you own the meter and the procedure.

At the shop — say this: "Please test the battery (it fails on cold mornings, if that is your case), check both clamps, the fuse block connections and the module's ground, and write the readings on the repair order before you replace any module."

Route 3 · The battery sensor, the module and the software — $0 to $200 for a software update; owners' median $600 for a sensor or module; free under a recall or program

What it is. The battery and wiring are sound but a sensor, a module or its software reports the voltage wrongly, estimates the charge wrongly or sets the code during a normal event. This is also the route of the connectors that "Check Charging System" is traced to.

What the documents say. 🟢 Honda: "The Charging System indicator is on with DTC P154A (battery sensor internal failure)." and "Replace the battery sensor." 🟢 Ford on the F-150 PowerBoost: "This may be due to an erroneous calculation of battery SOC by the BMS.", fixed with a battery test, "Update the BCM to the latest level software using the FDRS." and a monitor reset. Ford's "Check Charging System" papers trace the message to "water intrusion into connector C202" on the Bronco Sport, "water intrusion in the connector C1050" on the Maverick, "corrosion found in the active grille shutter lower connector (C1767)" and "coolant contamination into the battery monitor sensor (BMS) connector". 🟢 GM: "Updated K160 BSCM calibrations have been released. Reprogram the K160 BSCM with the latest calibrations in TLC/SPS." 🟢 Stellantis says to charge the battery, clear the codes and reset a cluster that sets B210A-00 before any replacement. 🟢 Mercedes, for the opposite fault (voltage too high): P056300 is set "once the measured voltage exceeds 16V." inside the transmission control unit, and software is being rolled out.

What the owners report. 118 of the 2,971 end at a module, sensor or software (4%); 52 (44%) describe a stall, 41 (35%) a no-start and 60 (51%) a return, the highest return share of any named part except a drain. Honda is 22 of the 118. A 2012 Civic owner was told "THE CHARGING SYSTEM WAS OPERATIONAL HOWEVER, THE SYSTEM NEEDED TO BE UPDATED OR REPROGRAMMED."

The cheap cause that gets skipped. A connector with water, and an update that already exists. Several of Ford's Check Charging System papers (SSM 49496, 49976, 50973 and 53979) are short notes that ask the shop to look at a named connector first.

Fix it yourself. No. Flash tools, relearns and monitor resets belong to the shop, and the papers set conditions: GM's 24-NA-050 programming notes say "DO NOT connect a battery charger." and want system voltage held by a programming support tool, while Ford wants a charger clamped to a chassis ground so battery saver mode does not start. (Our advice: do not accept a new brake, body or engine module on a P0562 until the shop shows you, in writing, the test result or the bulletin that points to that module.)

At the shop — say this: "Is my software current for my VIN, is there a bulletin for this message, was the battery monitor reset after the last battery, and which connector or module did you test before suggesting a part?"

Route 4 · Something that will not let the battery rest — $0 to find, $75 to $150 for a draw test

What it is. The charging system works but something keeps taking power while the car sleeps: an accessory, a module that does not shut down, a tailgate light, a short. The battery is flat in the morning and a new battery or alternator changes nothing.

What the documents say. 🟢 GM: "Inspect for any type of aftermarket equipment that could draw down the battery (dash cameras, cell phone chargers, etc.).", then a drain test. 🟢 Ford's bulletin for the 2020-2022 Escape and 2021-2022 Corsair plug-in hybrids: "12-Volt Battery Becomes Discharged While HV Battery Is Charging And/Or Inoperative Level 2 Charger", fixed by reprogramming. 🟢 Volkswagen: a flat battery can leave U300100, "Control Module Improper Shutdown", behind.

What the owners report. 53 of the 2,971 end at a drain (2%), the highest no-start share of any group: 39 (74%) would not start, only 4 (8%) describe a stall, and 33 (62%) came back. Subaru is 14 of the 53. A 2015 Outback owner wrote that with the tailgate open for 30 minutes "the car would not start due to the battery being drained from it." A 2019 Crosstrek Hybrid owner describes "SOME SORT OF ELECTRICAL "LEAKAGE" ISSUE THAT DRAINS THE BATTERY AFTER SITTING FOR A FEW DAYS." The draw test itself is in our guide on why a battery keeps dying.

The cheap cause that gets skipped. What you added: a dash camera, a phone charger, an alarm. GM names them in its own paper.

Fix it yourself. Remove or unplug what you added and see whether the morning problem moves. A draw test is a skilled job on a car whose modules wake and sleep on a schedule (our advice: leave it to a shop that will print the reading).

At the shop — say this: "Please run a parasitic draw test after the modules have gone to sleep, tell me the milliamps and the circuit, and write it on the invoice before replacing the battery or the alternator."

Route 5 · The alternator, its regulator, belt and pulley — $300 to $650 reman at an independent, $700 to $1,400 at a dealer

What it is. The alternator, its built-in regulator, pulley, belt and wire. It sits last because it is the most expensive to get wrong and the papers say test first; it is also, by count, the part owners name most.

What the documents say. 🟢 Volvo: "The majority of replaced alternators have had no faults with the alternator itself." 🟢 Hyundai replaces it only below 14.0 volts at idle with the valve-cover joint leaking. 🟢 Stellantis, on a no-start: "A loose jump post between alternator and PDC Or a failed alternator pulley could be causing a vehicle no start condition and alternator replacement.". 🟢 Ford: "illuminated charging system indicator, and/or damaged alternator pulley" on the 2016-2019 Explorer 2.3L, fixed with a new belt; on the 2021-2022 Bronco after fording muddy water "This may be the result of mud accumulation inside the generator causing it to fail." 🟢 Recalls 14V-634 and 17V-435 are the cases where the alternator itself is the defect; in 20V-705 an oil leak damages it.

What the owners report. 360 of the 2,971 end at the alternator or generator itself (12%; belts and tensioners named as the cause are counted under "another cause"): 190 (53%) describe a stall, 86 (24%) a no-start, 136 (38%) a recall or bulletin, and 75 (21%) a return, the lowest return share of any group. 42 of the 91 complaints NHTSA marks as a fire are in this group. A 2012 Chrysler 300 owner: "THE BATTERY SAVER LOW LIGHT ILLUMINATED ON THE INSTRUMENT PANEL. SHORTLY AFTER, THE BATTERY LIGHT ILLUMINATED. THE VEHICLE STALLED AND WAS NOT ABLE TO RESTART." A 2009 Corolla owner: "THE BATTERY LIGHT CAME ON EARLY IN THE DAY BUT I CONTINUED TO DRIVE IT AFTER STOPPING AT TOYOTA WHO CONFIRMED IT WAS A "BATTERY LIGHT."", and later "THE CAR COMPLETELY SHUT DOWN."

The cheap cause that gets skipped. The belt, the pulley and the B+ connection. Our alternator guide carries the belt at $100 to $250; our serpentine belt guide is the next click.

Fix it yourself. Not the replacement. The free test, a look at the belt and a check that the B+ nut is tight are fair (our advice); ask for the part's own warranty.

At the shop — say this: "What was the charging voltage at idle and under load, what was the voltage drop on the B+ and the ground, are the belt and pulley sound, and is my car under a recall for the alternator?"

The coverage file: which recalls and programs run in September 2026

The status column is our computation from the printed terms, as of September 2026, not a promise from any maker. No recall filing prints an end date for the free remedy (only the older service programs in the last rows do); the VIN decides.

Campaigns and updates are not recalls: the safety-recall lookup at nhtsa.gov/recalls may show nothing for them, so the dealer, with your VIN, is the lookup.

What 3,633 complaints show

How we went through them. Every complaint our two searches found on codes and on low-voltage or charging wording, received from January 2015 through early October 2026: 3,633 in all (the limits are in the method section). Each was sorted twice, independently, by the same written rules; the two sortings matched on the main category in 92% (3,355 of 3,633), and the 696 complaints where they differed on the category or a flag were settled by a written rule. We publish the sorting rules and how we did it. 2,971 describe a low-voltage or charging fault on the owner's car; 662 do not.

Is it the alternator? Of the 2,971, 360 end at an alternator (12%), and 75 of those say the problem came back (21%); the same share is 32% for the battery (61 of 193), 34% for wires and grounds (35 of 104), 51% for modules and sensors (60 of 118), 62% for drains (33 of 53) and 61% where a shop checked and cleared it (163 of 267). Where no cause is named, 39% say it came back (617 of 1,567).

Which cars. Jeep is 308 of the 2,971, Dodge 298, Chevrolet 284, Ford 266, Hyundai 257, Chrysler 252 and Honda 193; by model, Dodge Charger is 129 and Hyundai Ioniq 5 122. 162 of the 360 alternator complaints are on the models and years of the Chrysler recalls, and 174 of the 309 "another cause" complaints are Hyundai, Genesis and Kia cars (136 of the 309 use the letters ICCU).

What happened. 1,329 describe a stall or a loss of drive (45%), 941 a car that would not start (32%), 1,877 one or the other (63%), 541 a recall, campaign, bulletin or coverage, or being told there is none (18%) and 1,121 a return of the problem (38%). By group, a stall is 53% for alternators, 44% for modules, 39% for wires and grounds and 25% for the battery, and a no-start is 74% for drains and 48% for the battery. In NHTSA's own fields, 30 of the 2,971 are marked as a crash, 91 as a fire (42 of them in the alternator group), 19 with an injury and 125 as a tow; none is marked with a death.

Is a low-voltage fault dangerous, and does a new alternator stop it? PulsCar counted what 2,971 federal owner complaints say about a low-voltage or charging fault on the owner's car: 1,329 describe a stall (45%) and 941 a car that would not start (32%), and NHTSA marks 30 as a crash, 91 as a fire, 19 with an injury and 125 as a tow. Where a complaint ends at an alternator, 75 of 360 say the problem returned; at the battery 61 of 193; at a module 60 of 118; at a drain 33 of 53. No document that prints P0562 says to stop driving, but the Hyundai, Genesis and Kia papers do for the charging unit, Jaguar Land Rover recall 26V-248 says Do Not Drive, and Honda's 17V-418 letter suggests parking the Accord outside. Our rule: a battery or charging warning with dimming lights, heavy steering or a loss of power means pulling over and a tow.

The 18 complaints that print P0562

18 of the 3,633 print the code P0562 in the plain spelling (16 as P0562, one as "P 0562", one as "code 0562"); six more write it with extra digits (P056216) or as PO562. 12 of the 18 end with no cause named, 3 at a module or sensor, 1 at an alternator, 1 at a drain and 1 at another cause; 5 describe a stall, 4 a no-start, 4 a recall or bulletin and 5 a return, and 15 print at least one more code. Their stories are mostly not about a battery. A 2015 Dodge Journey owner writes "REPEATED SYSTEM LOW VOLTAGE ISSUES, VEHICLE STALLS WHILE DRIVING - DOES NOT MATTER THE SPEED - IT HAS DONE IT AT 50 - 60 MILES A HOUR RENDERING POWER BRAKES AND STEERING USELESS." A 2022 Wagoneer owner saw "battery voltage dropped to approximately 11.7 volts while the engine was running." A 2005 Grand Cherokee owner changed the battery, the throttle body and the transmission fluid for P0562 with P0700 and P0750, and the problem stayed. The code on its own settles little.

Eight more complaints print a neighbouring code: P0622 twice, P2504 twice, and P0560, P0563, P0621 and P2503 once each, which is too few to say anything about them.

What owners say they paid

134 of the 2,971 complaints state a dollar figure tied to the repair under one written inclusion rule: 157 figures (52 amounts paid, 43 bills, 60 quotes and 2 offers), which the price ladder above splits by group. One figure is in Canadian dollars, 13 are owners writing "over" an amount, and the $4,000 alternator-group maximum is a quote for a starter-generator; all are counted at face value. They are what owners wrote, not audited invoices, and we publish them with NHTSA complaint numbers. The median of all 157 is $500. For an alternator the amounts paid run $100 to $1,055 (median $314.27), the bills $500 to $1,320 (median $862.67) and the quotes $300 to $4,000 (median $893.50); a tow is 3 figures, $50 to $500.

How much does it cost to fix P0562 in 2026, and when is the alternator the wrong first purchase? PulsCar took every dollar figure in the 2,971 relevant complaints that meets one written inclusion rule: 157 figures in 134 complaints, 95 of them bills or amounts paid. A battery runs $55 to $1,958 with a median of $246 across 34 figures, an alternator $100 to $4,000 with a median of $800 across 35, a wire, cable or ground $13 to $5,000 with a median of $392, a module or software $34 to $3,400, and a diagnostic fee $45 to $800 with a median of $160, while several parts in one figure reach $2,523. Our guides carry $100 to $350 for a battery and $300 to $650 for a remanufactured alternator. A recall or an open campaign costs $0, so the VIN, the clamps and a battery test come before any part.

Why P0562 comes back after a repair

The voltage was never the part's fault. A new battery on a loose clamp, a bad ground or a drain gives the same code. A module was replaced for a symptom. GM says not to replace the brake module; several of Volvo's 48-volt starter-generator units were sent to the supplier and came back with no fault found. The cause is intermittent. Ford's hybrid paper says its module codes "may be difficult to reproduce"; 163 of the 267 complaints that end with nothing found say it returned. In all, 1,121 of the 2,971 say the same light, code or symptom returned or the repair did not hold.

Can you drive with P0562, and how long until it stalls?

It depends on how the car behaves, and this is our rule, not any maker's: none of the papers that print P0562 tells the owner to stop driving (on some 2020-2021 Ford hybrids the car itself may show "Stop Safely Now", with a no-start), and GM's paper for the 2024-2025 Encore GX and Trailblazer with P0621 even says "In the meantime, please advise customer they may continue to drive the vehicle" when tests find no fault beyond a warning. Two recalls go further: Honda's 17V-418 letter (2013-2016 Accord) suggests parking outside until the repair is done, and Jaguar Land Rover's 26V-248 filing says Do Not Drive Park Outside. A steady light on a car that drives normally: a shop within days, except under those two recalls. If the battery or charging light comes with dimming lights, a heavy steering wheel, a brake, StabiliTrak or power message, a car that is losing power, a stall or a failed restart, do not drive it to the shop: pull over at the first safe place and call a tow. If the check engine light is flashing, pull over safely, switch the engine off and have it towed; the one exception is a shop within 2 to 3 miles, reached gently, under 40 mph with light throttle (our advice). If power drops on the road (our advice): hazard lights, signal, move out of the lane as soon as it is safe, then call.

How long? The papers give no time, and the complaints give none that is safe to rely on. Chrysler's recalls say that if the alternator fails the vehicle "may stall without warning"; Kia's letter lists chimes and warning lights that come first, then reduced power and eventually "a complete loss of drive power"; JLR prints a red warning within 10 seconds of the converter failing. In the complaints, 1,329 describe a stall, 442 of them mention the steering or the brakes, 475 mention a tow in the owner's words (NHTSA's own tow field is ticked on only 125 of all 2,971) and 130 use the words "without warning" or "no warning". A car that drops to a crawl in fast traffic is its own warning.

Should you buy a used car with a P0562 history?

Ask what was found, not what was replaced: 163 of the 267 complaints that end with nothing found say the problem returned. Ask for the invoice that names the test (battery test, charging voltage, draw test; a car that won't start after sitting points at a drain), have a dealer run the VIN for the recalls and campaigns above, and before you pay have all modules scanned for stored and history codes, the car driven through a full warm-up with the lights and blower on, and scanned again.

Clearing P0562 before an inspection

A cleared code returns if the cause is a loose clamp, a ground or a drain, and many inspections need the car's self-checks to have run again; ask the station. GM's 24-NA-050 (first version) says, for the brake-module code P0606 set with P0562, "Note: Disconnecting the battery may not clear the P0606 and clear the MIL." and that the lamp can "remain on over the next 3 ignition cycles"; Volvo says the check engine light goes out after a number of driving cycles. Fix first, drive several normal trips, then test; how to reset a check engine light covers the mechanics.

What the papers tell a shop to do with P0562, checkpoint by checkpoint

Checkpoint 1 — the code and the module. Which module set it, current or history. Checkpoint 2 — the battery. Tested, at the temperature where the fault occurs. Checkpoint 3 — clamps, cables, fuse block, grounds. Tight, clean, measured. Checkpoint 4 — charging voltage. Hyundai 14.0 volts at idle, Volvo 13.5 to 14.8, with Stellantis's smart-charge caution. Checkpoint 5 — connectors, software, coverage. The named connector, the bulletin version, the VIN. Checkpoint 6 — the part. Only then a battery sensor, a module or an alternator, with the relearn the maker prints.

Three P0562 traps

Trap 1 · Buying the alternator, or a brake module, from the code. The code does not say which part is wrong. GM says do not replace the brake module for P0606 with P0562, in papers on charging faults Volvo says the majority of replaced alternators had no fault, Volkswagen says do not replace the generator before the 200 amp fuse, and Hyundai, for the Santa Fe valve-cover campaign, says replace only below 14.0 volts and only with an oil leak at the valve-cover joint.

Trap 2 · A cleared code or a quiet week taken as a repair. 267 complaints end with nothing found or only a cleared code, and 163 of them say it came back; the 1,567 with no cause named say it came back in 39%.

Trap 3 · A recall nobody asked about. Chrysler's alternator recalls, Honda's battery sensor, Ford's two Bronco Sport and Maverick recalls and the Genesis and Kia charging unit are free where the VIN is on the list (for Hyundai's Ioniq campaign 997, ask the dealer to confirm in writing that it is at no cost), and campaigns may not show in the safety-recall lookup. Ask by number before you pay for a part.

The P0562 plan: 10 minutes, today, this week

Today (10 minutes). Key off, look at the battery clamps and the case, remove anything you added, write down the lights and messages, and read the code (a parts store will read it and test the battery free; ask whether its reader shows which module set it). Today (VIN). Ask a dealer for recalls and campaigns by number. This week. If the light is still on or comes back, pay for one diagnosis, ask for the battery test, the charging voltage at idle and a draw test in that order, and for the bulletin number. If the battery or charging light comes with dimming lights, heavy steering, a brake message or a loss of power, or the check engine light is flashing, do not drive it to the shop: have it towed. Do not wait out the week.

These are composite scenarios, not individual customers; the dollar figures are shop-price ranges from our guides. A 2024 Silverado HD shows a check engine light with P0606 and P0562, and the shop quotes a brake module: the owner asks which version of GM's 24-NA-050 the shop is following, since all four versions say not to replace the module and versions 2 to 4 say to reprogram it, and asks for the battery test first (free at a parts store; a battery is $100 to $350 if it fails). A 2013 Dodge Charger stalls with the battery light on: the owner runs the VIN for recalls 14V-634 and 17V-435 before paying for a remanufactured alternator at $300 to $650 or a dealer unit at $700 to $1,400. A Subaru goes flat every few days after a new battery: the owner asks for a draw test at $75 to $150 before a second battery or an alternator.

Sources and documents

Primary documents only. Claims marked 🟢 rest on one of the items below; claims marked ⚪ are shop-price estimates carried from PulsCar's repair guides.

1. General Motors: PIT5634; 24-NA-050 versions 1, 2, 3 and 4; PIT6347, PIT6347A, PIT6347B and PIT6522; PIC6212, PIT5200, PIC5626B, PIT4813F, PIT5289B, PIC6593A, 07-06-03-009D and service update 12238.
2. Ford: SSM 50151, SSM 49976, SSM 49496, SSM 50973, SSM 53979, TSB 23-2196, TSB 22-2392, TSB 24-2442, TSB 23-2020, TSB 22-2169 and SSM 52738.
3. Stellantis: 08-013-15, 18-030-14 Rev. B, 08-037-21, 18-026-23 Rev. A, 18-003-26 Rev. A, 08-105-20, the Compass diesel flashes 25-002-21 Rev. A, 18-041-21 and 08-068-21, and the case records S2208000075, S2008000181, S2308000022, S2408000066 and S2408000068.
4. Hyundai, Genesis, Kia: 23-01-076H-2, 23-01-060H, 23-01-069G and Kia SA599.
5. Honda, Mazda, Toyota, Subaru, Nissan: Honda 16-026 and version 2; Mazda repair tip; Toyota T-SB-0014-18; Subaru WRD-23 announcement.
6. Volvo, Mercedes-Benz, Volkswagen, Audi, Jaguar Land Rover: Volvo TJ 26897.3.0, TJ 37103.3.0 and TJ 37555.1.0; Mercedes LI27.19-P-080823; Volkswagen TT 27-11-02 and TT 01-18-16; Audi 2076994/8; JLR SSM71917, Q406 and SSM74238.
7. Recalls (Part 573 reports and related papers): 10V-555, 13V-173, 14V-634, 17V-418, 17V-435, 20V-705, 24V-200, 24V-267, 25V-019 and 26V-248.
8. PulsCar analysis of NHTSA public data, October 2026: 3,633 complaints found on low-voltage and charging wording (2,971 describe such a fault), each sorted twice by the same written rules; owner-reported amounts; the document list with reading status. Complaints, amounts, documents, the sorting rules and how we did it (CC BY 4.0).

For the neighbouring pages: battery and alternator failures on the road, alternator replacement cost, car battery replacement cost, a battery that keeps dying, how to test a car battery, a car that stalls while driving, a car that won't start, what a check engine light means, P0606 and the check-engine code index.

No app or sound test replaces a battery test and a voltmeter for P0562: the battery test, the clamps and the running voltage are the evidence.

Methodology. The complaint set is every complaint in NHTSA's file received from January 2015 to early October 2026 that names a code from P0560 to P0564 in any spelling we searched, or uses low-voltage or charging wording with a word about a light, a message, a stall, a test or a repair (2,442 from the first search), plus 1,191 more from a second search of the whole file that stopped once it had kept 1,191 (the cap was 1,200): 3,633 in all. Complaints that name an alternator failure but none of the search's voltage or charging phrases were not sorted (1,157, some of them still mentioning a battery light or a code), so this is a large set, not every such complaint. Every complaint was sorted twice, independently, by the same written rules; the two sortings matched on the category in 92% (3,355 of 3,633), the 696 complaints where they differed on the category or a flag were settled by a written rule, and a final check changed 123 rows. 2,971 describe the fault on the owner's car and 662 do not; 18 print the code P0562. The document set is 223 of the 1,543 entries in NHTSA's index of carmaker papers: the 68 whose index summary names a code from P0560 to P0564, the 95 whose summary opens with charging-system, battery-saver, low-voltage, regulator or alternator wording, and 60 more from a second search. One had no PDF, leaving 222 files (21 exact copies) and 201 distinct documents; 151 were read in full (15 from page images, because the PDF had no readable text) and the other 71 files, 50 distinct revisions and the 21 copies, were compared with them line by line. 41 files (27 distinct documents) print P0562 in some form and 45 print P0563. The filings of 10 recalls that the complaints mention and that concern the charging system, the 12-volt battery, its sensor or cable, or an alternator were read as well. Coverage status "as of September 2026" is our computation from printed terms.

Prices verified July to October 2026 in the repair guides they are carried from and in the owner reports above, and reviewed quarterly. Technical documents verified October 2026: the 201 distinct documents in our published file, of which 151 were read in full.

Had P0562 cleared by a clamp, a ground, a software update or a recall? Email [email protected] with the vehicle, mileage and outcome.