Is the 2005 Acura MDX a bad year?
180 owner complaints to NHTSA. Transmission complaints: 87, 8.7× a quiet MDX year.
Keep it, but watch the transmission
Half of the transmission complaints for this year were filed at 58k–105k miles, where you are now.
The verdict moves with mileage: the same car reads differently at 30,000 and at 150,000 miles.
What 2005 MDX owners report, by mileage
Each system owners named in five or more complaints, with the mileage range where the middle half of those complaints were filed. Read at 80,000 miles.
| SYSTEM | COMPLAINTS | MIDDLE HALF FILED AT | TYPICAL US REPAIR BILLS |
|---|---|---|---|
| Transmission and drivetrainSTANDS OUT | 87 (48%) | 58k–105k miles · around this mileage | CV axle / CV joint replacement (one side) $300–$1,500 · Automatic transmission replacement $2,500–$7,000 |
| Electrical system | 18 (10%) | 77k–145k miles · around this mileage | 12-volt battery replacement $100–$400 · Starter motor replacement $350–$1,200 |
| Engine | 16 (9%) | 70k–143k miles · around this mileage | Valve cover gasket replacement $110–$500 · Timing chain replacement $1,000–$4,000 |
| Air bags | 39 (22%) | 104k–177k miles · ahead | — |
| Brakes | 14 (8%) | 86k–162k miles · ahead | Brake pad replacement (one axle) $115–$390 · Brake pads and rotors replacement (one axle) $200–$1,084 |
| Stability control | 11 (6%) | too few with a mileage | — |
| Speed control | 9 (5%) | too few with a mileage | — |
| Steering | 9 (5%) | too few with a mileage | — |
| Seat belts | 7 (4%) | too few with a mileage | — |
| Equipment | 5 (3%) | too few with a mileage | — |
Bills are typical US ranges from the sources named in the tool (J.D. Power, Kelley Blue Book, CarParts.com and others), printed only for systems that stand out or sit at or ahead of 80,000 miles. Not a quote.
What owners reported alongside their complaints
Of 180 complaints: 15 mention a crash · 1 mentions a fire · 12 report an injury · 3 say the car was towed.
No complaints in the last 12 months; the newest was filed in Jul 2025.
Counts of what owners wrote in their complaints, not verified by anyone.
In owners' own words
Shuddering and wash-boarding, due to defective torque converter. Acura mailed out transmission software updates december 2009 and november 2010 to address this on-going issue.
I own a 2005 Acura mdx. This summer I began noticing a strange vibration and noise when accelerating in 4th gear.
Gear shift lever became harder and harder to shift over the time and then seized. Noticed heavily corroded shift lever linkage at the transmission end.
Unedited excerpts from complaints filed with NHTSA, chosen by mileage (nearest 80,000 miles), not by content. Unverified.
Recalls for the 2005 Acura MDX: 13
The rotating portion of the accelerator pedal assembly may bind. If the accelerator pedal binds, the engine may not quickly return to idle after the pedal is no longer pressed, increasing the risk of a crash.
The vehicles are equipped with passenger frontal air bag inflators assembled as a recall remedy part or replacement service part, that may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, temperature and temperature cycling. An inflator explosion may result in sharp metal fragments striking the driver or other occupants resulting in serious injury or death.
These vehicles are equipped with driver frontal air bag inflators assembled as a recall remedy part or replacement service part, that may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, temperature and temperature cycling. An inflator explosion may result in sharp metal fragments striking the driver or other occupants resulting in serious injury or death.
Due to a manufacturing error, in the event of a crash necessitating deployment of the driver frontal air bag, these inflators may explode. An explosion of an inflator within the driver frontal air bag module may result in sharp metal fragments striking the driver, front seat passenger or other occupants resulting in serious injury or death.
These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules used as original equipment or replacement equipment. An inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury or death.
These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules, and used as original equipment or replacement equipment. An inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury or death.
The affected vehicles are equipped with a dual-stage driver frontal air bag that may be susceptible to moisture intrusion and other factors, including manufacturing variability that, over time, could cause the inflator to rupture. In the event of a crash necessitating deployment of the driver's frontal air bag, the inflator could rupture with metal fragments striking the driver or other occupants resulting in serious injury or death.
Upon deployment of the passenger side frontal air bag, excessive internal pressure may cause the inflator to rupture. In the event of a crash necessitating deployment of the passenger s frontal air bag, the inflator could rupture with metal fragments striking the vehicle occupants potentially resulting in serious injury or death.
Upon deployment of the passenger side frontal air bag, excessive internal pressure may cause the inflator to rupture. In the event of a crash necessitating deployment of the passenger s frontal air bag, the inflator could rupture with metal fragments striking the vehicle occupants potentially resulting in serious injury or death.
An electrical capacitor may have been damaged during the manufacturing of the Vehicle Stability Assist (VSA) control module causing intermittent, automatic, minor brake application. However, if the driver applies the brakes while the VSA is malfunctioning, the vehicle may come to an abrupt stop. Sudden inadvertent braking, especially without illumination of the brake lights, may increase the risk of a vehicle crash.
The interlock lever of the ignition switch may deform, which can allow the interlock function of a vehicle with an automatic transmission to be defeated. Removal of the ignition key when the gear selector of a vehicle with an automatic transmission has not been shifted to the park position can allow the vehicle to roll away, increasing the risk of a crash.
A pinch bolt exists between the bike arm bracket and the upright assembly of the "Hitch" Style bicycle rack. When moving the bike arm bracket to its down position, this pinch bolt has the potential of causing severe laceration or amputation to the user's fingertips or hand.
On certain sport utility vehicles, some fuel tanks were improperly manufactured. In a crash, the fuel tank could be damaged and leak fuel. Fuel leakage, in the presence of an ignition source, could result in a fire.
A recall may cover only some cars of a model year; the campaign size counts every model and year it lists. Enter your VIN at nhtsa.gov/recalls: dealers fix open recalls free.
Service bulletins from Acura: 37
Repair instructions Acura sent its dealers for symptoms seen in the shop on the 2005 Acura MDX. Ask a dealer or mechanic for a bulletin by its number.
The engine coolant temperature input in misinterpreted by the ecm/pcm/ the MIL comes…
For any TPMS-related warranty repairs, all recorded DTCs must now be entered into the warranty claim
Update on some model vehicles regarding testing of alternators with the GR8 alternator/starter tester…
There are guidelines for various situations and procedures including: tire pressure valve stem installation, trailer stability malfunction light…
NHTSA defect investigations: 5
Desiccated Air Bag Inflator Rupture
Air Bag Inflator Rupture
Air Bag Inflator Rupture
Vehicle Stability Assist Malfunction
Ignition Interlock Failure - Rollaway
Neighbouring years
2004 MDX: 171 complaints, keep it, but watch the transmission · 2006 MDX: 87 complaints, keep it.
Every Acura MDX year
2001 · 2002 · 2003 · 2004 · 2005 · 2006 · 2007 · 2008 · 2009 · 2010 · 2011 · 2012 · 2013 · 2014 · 2015 · 2016 · 2017 · 2018 · 2019 · 2020 · 2022 · 2023 · 2024 · 2025 · 2026 · All MDX years side by side
Other Acura models: Acura CL · Acura ILX · Acura Integra · Acura RDX · Acura RL · Acura RSX · Acura TL · Acura TLX · Acura TSX. All makes and models.
Questions
Is the 2005 Acura MDX a bad year?
180 owner complaints to NHTSA. Transmission complaints: 87, 8.7× a quiet MDX year. At 80,000 miles the tool says: Keep it, but watch the transmission. Half of the transmission complaints for this year were filed at 58k–105k miles, where you are now.
What are the most common problems with the 2005 Acura MDX?
By owner complaints to NHTSA: transmission and drivetrain (87), electrical system (18), engine (16), air bags (39), brakes (14). Half of the transmission complaints were filed between 58k–105k miles.
How many recalls does the 2005 Acura MDX have?
13 recall campaigns list this model year: Speed control (NHTSA 19E068000), Air bags (NHTSA 19V-501), Air bags (NHTSA 19V-499), Air bags (NHTSA 19V-182) and more. A recall may cover only some cars; check by VIN at nhtsa.gov/recalls.
Method: counts of unverified owner complaints filed with NHTSA, compared only with other years of the same model (sales volumes are unknown, so no failure rate is computed). A system stands out at 40+ complaints and at least twice the model's quiet (lower-quartile) year, or twice the share across every vehicle of that model year. The mileage range is the 25th to 75th percentile of the mileages owners reported. Data received by NHTSA through November 5, 2026. Repair prices are typical US ranges from named sources, not quotes. Not a diagnosis and not financial advice. PulsCar is not affiliated with NHTSA. Check this car at your own mileage.