Is the 2003 Chevrolet Impala a bad year?
692 owner complaints to NHTSA. Engine complaints: 157, 7.5× a quiet Impala year.
Keep it, but watch the engine
The engine draws 7.5× the complaints of a quiet Impala year, spread over 65k–143k miles, so there's no single mileage to plan around.
The verdict moves with mileage: the same car reads differently at 30,000 and at 150,000 miles.
What 2003 Impala 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 106,000 miles.
| SYSTEM | COMPLAINTS | MIDDLE HALF FILED AT | TYPICAL US REPAIR BILLS |
|---|---|---|---|
| Electrical systemSTANDS OUT | 263 (38%) | 66k–141k miles · around this mileage | 12-volt battery replacement $100–$400 · Starter motor replacement $350–$1,200 |
| EngineSTANDS OUT | 146 (21%) | 68k–147k miles · around this mileage | Valve cover gasket replacement $110–$500 · Timing chain replacement $1,000–$4,000 |
| Exterior lightingSTANDS OUT | 103 (15%) | 53k–108k miles · around this mileage | — |
| Air bags | 39 (6%) | 80k–144k miles · around this mileage | — |
| Steering | 30 (4%) | 26k–112k miles · around this mileage | Steering rack and pinion replacement $700–$2,100 |
| Transmission and drivetrain | 30 (4%) | 43k–125k miles · around this mileage | CV axle / CV joint replacement (one side) $300–$1,500 · Automatic transmission replacement $2,500–$7,000 |
| Fuel system | 26 (4%) | 44k–144k miles · around this mileage | Fuel pump replacement $220–$1,500 · Fuel injector replacement (one injector) $300–$1,200 |
| Speed control | 23 (3%) | 52k–120k miles · around this mileage | — |
| Body structure | 15 (2%) | 30k–121k miles · around this mileage | — |
| Traction control | 15 (2%) | 79k–129k miles · around this mileage | — |
| Suspension | 14 (2%) | 7k–110k miles · around this mileage | Ball joint replacement (one joint) $200–$500 · Control arm replacement (one arm) $200–$900 |
| Stability control | 13 (2%) | 69k–157k miles · around this mileage | — |
| Equipment | 12 (2%) | 52k–106k miles · around this mileage | — |
| Brakes | 74 (11%) | 18k–100k miles · mostly behind | — |
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 106,000 miles. Not a quote.
What owners reported alongside their complaints
Of 692 complaints: 32 mention a crash · 32 mention a fire · 23 report an injury · 7 say the car was towed.
1 complaint was filed in the last 12 months, the newest in Oct 2026.
Counts of what owners wrote in their complaints, not verified by anyone.
In owners' own words
Blown head gasket. Doing searches on internet, there are thousands of complaints for this issue with this engine type!
Problem started with the trans - wasn't shifting right, hard shift. Took it to rotolo chevy in fontana, ca.
Noticed it took longer for the car to heat up last winter; this winter started out the same, and I noticed the blower wouldn't work on setting 5 sometimes.
Unedited excerpts from complaints filed with NHTSA, chosen by mileage (nearest 106,000 miles), not by content. Unverified.
Recalls for the 2003 Chevrolet Impala: 8
The affected vehicles were previously repaired under recalls 08V-118, 09V-116, and 15V-201 to address the possibility that engine oil may drip onto the hot exhaust manifold. Engine oil that drips onto the hot surface of the exhaust manifold may result in a fire.
This defect can affect the safe operation of the airbag system. The key fob (if applicable), should also be removed from the key ring. In these models, the weight on the key ring and/or road conditions or some other jarring event may cause the ignition switch to move out of the run position, turning off the engine. If the key is not in the run position, the air bags may not deploy if the vehicle is involved in a crash, increasing the risk of injury.
Some of these vehicles have a condition in which drops of engine oil may be deposited on the exhaust manifold through hard braking. If the manifold is hot enough and the oil runs below the heat shield, it may ignite into a small flame and may spread to the plastic spark plug wire channel and beyond increasing the risk of an engine compartment fire.
A potential material or design defect could result in the steering knuckle breaking in the hub area. A broken steering knuckle could result in loss of steering control and a possible crash without warning.
These replacement steering shafts can be used on the vehicles listed above. The weld connecting the inner tube to the outer tube may be defective. If the weld fails, loss of steering could result, possibly resulting in a vehicle crash.
Certain delphi fuel pressure regulators, p/nos. FP10020-11B1, FP10026-11B1, and FP10027-11B1, sold after january 9, 2007, as aftermarket equipment for various passenger vehicles listed above. The universal pressure regulators (Upr) were produced without an o'ring and retainer. Fuel may leak, possibly resulting in a fire.
On certain Mini vans, passenger and sport utility vehicles, some of these vehicles have a driver's side air bag that may not deploy as designed. In addition, the air bag inflator could rupture. This could result in reduced capability of the air bag to protect the driver. Also if the air bag inflator ruptured, pieces of the inflator could strike and injure the vehicle occupants.
Certain passenger, Mini vans, and sport utility vehicles have an air bag inflator on the driver's side that could fracture at a weld during a deployment. Pieces of the inflator could strike and injure vehicle occupants and the air bag cushion would not inflate fully, reducing the capability of the bag to protect the driver.
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 Chevrolet: 126
Repair instructions Chevrolet sent its dealers for symptoms seen in the shop on the 2003 Chevrolet Impala. Ask a dealer or mechanic for a bulletin by its number.
Rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up
Guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system
Proper way to install the pistons in an engine
Normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal…
NHTSA defect investigations: 1
Alleged headlight failure
Neighbouring years
2002 Impala: 792 complaints, keep it, but watch the engine · 2004 Impala: 1,074 complaints, keep it.
Every Chevrolet Impala year
2000 · 2001 · 2002 · 2003 · 2004 · 2005 · 2006 · 2007 · 2008 · 2009 · 2010 · 2011 · 2012 · 2013 · 2014 · 2015 · 2016 · 2017 · 2018 · 2019 · 2020 · All Impala years side by side
Other Chevrolet models: Chevrolet Astro · Chevrolet Avalanche · Chevrolet Avalanche 1500 · Chevrolet Aveo · Chevrolet Blazer · Chevrolet Bolt EV · Chevrolet Camaro · Chevrolet Captiva · Chevrolet Cavalier · Chevrolet Cobalt · Chevrolet Cobalt SS · Chevrolet Colorado · Chevrolet Corvette · Chevrolet Cruze · Chevrolet Equinox · Chevrolet Equinox EV · Chevrolet Express · Chevrolet HHR · Chevrolet Malibu · Chevrolet Malibu Classic · Chevrolet Malibu Maxx · Chevrolet Monte Carlo · Chevrolet S10 · Chevrolet Silverado · Chevrolet Silverado 1500 · Chevrolet Silverado 1500 HD · Chevrolet Silverado 2500 · Chevrolet Silverado 3500 · Chevrolet Sonic · Chevrolet Spark · Chevrolet Suburban · Chevrolet Suburban 1500 · Chevrolet Tahoe · Chevrolet Tracker · Chevrolet Trailblazer · Chevrolet Trailblazer EXT · Chevrolet Trailblazer EXT 370 · Chevrolet Traverse · Chevrolet Trax · Chevrolet Uplander · Chevrolet Venture · Chevrolet Volt. All makes and models.
Questions
Is the 2003 Chevrolet Impala a bad year?
692 owner complaints to NHTSA. Engine complaints: 157, 7.5× a quiet Impala year. At 106,000 miles the tool says: Keep it, but watch the engine. The engine draws 7.5× the complaints of a quiet Impala year, spread over 65k–143k miles, so there's no single mileage to plan around.
What are the most common problems with the 2003 Chevrolet Impala?
By owner complaints to NHTSA: electrical system (263), engine (146), exterior lighting (103), air bags (39), steering (30). Half of the engine complaints were filed between 65k–143k miles.
How many recalls does the 2003 Chevrolet Impala have?
8 recall campaigns list this model year: Exhaust (NHTSA 15V-701), Electrical system (NHTSA 14V-400), Engine (NHTSA 09V-116), Steering (NHTSA 09E005000) 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.