NHTSA lists 8 safety recalls and 722 owner complaints for the 2003 Chevrolet Impala. Most complaints involve electrical system (273) and exterior lighting (106). The EPA rates it 20–22 mpg combined.
General Motors LLC (GM) is recalling certain model year 1998-1999 Chevrolet Lumina and Oldsmobile Intrigue, 1997-2004 Buick Regal and Pontiac Grand Prix, 2000-2004 Chevrolet Impala, and 1998-2004 Chevrolet Monte Carlo vehicles. 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.
This defect can affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring. General Motors LLC (GM) notified the agency on July 3, 2014, that they are recalling 5,877,718 model year 2000-2005 Chevrolet Impala and Monte Carlo, 1997-2003 Chevrolet Malibu, 2004-2005 Malibu Classic, 1999-2004 Oldsmobile Alero, 1998-2002 Oldsmobile Intrigue, 1999-2005 Pontiac Grand Am and 2004-2008 Pontiac Grand Prix vehicles. 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.
GENERAL MOTORS IS RECALLING 1,497,516 MY 1997-2003 BUICK REGAL, MY 1998-2003 CHEVROLET LUMINA, MONTE CARLO AND IMPALA, MY 1998-1999 OLDSMOBILE INTRIGUE, MY 1997-2003 PONTIAC GRAND PRIX VEHICLES EQUIPPED WITH A 3.8L V6 NATURALLY ASPIRATED ENGINE. SOME OF THESE VEHICLES HAVE A CONDITION IN WHICH DROPS OF ENGINE OIL MAY BE DEPOSITED ON THE EXHAUST MANIFOLD THROUGH HARD BRAKING.
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Complaints for each Impala model year we’ve synced.
| Model year | NHTSA complaints |
|---|---|
| 2000 | 829 |
| 2001 | 747 |
| 2002 | 808 |
| 2003 | 722 |
| 2004 | 1,073 |
| 2005 | 608 |
| 2006 | 544 |
| 2007 | 627 |
| 2008 | 810 |
| 2009 | 824 |
| 2010 | 442 |
| 2011 | 505 |
| 2012 | 258 |
| 2013 | 272 |
| 2014 | 638 |
| 2015 | 301 |
| 2016 | 890 |
| 2017 | 117 |
| 2018 | 59 |
| 2019 | 28 |
| 2020 | 15 |
“My car sometimes cuts off while driving. Was on highway 301 running about 60 mph in the middle lane and just lost power no warning. No code no nothing. Sacred me, I truly feel that's a safety issue, for me and the cars behind me. It's bad not knowing when or where this will happen again.”
“THE MULTIFUNCTION SWITCH MALFUNCTIONS. IN SWITCHING FROM LOW BEAM TO HIGH BEAM THE HEADLIGHTS DO NOT SWITCH AND EVENTUALLY GO OUT COMPLETELY. BY HOLDING THE HANDLE MANUALLY FOR HIGH BEAMS IT CANCELS CRUISE CONTROL WHEN ACTIVATED.”
“Hey my name is [XXX] I recently took my Chevy impala for repairs they told me I need more repairs done I’m like cool my bottom of my car is rusted n my struts are bad n my oil pump n other stuff is not working as well I’m when I gave Chevy a call ball they took my they manager not to bring the car back I’m kinda upset bout this whole thing idk cause they had to fix my head gasket for free but I need help getting these thing fixes.”
Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| Impala Auto 4-spd, 6 cyl, 3.4 L · Front-Wheel Drive | 19 | 29 | 22 | $2,850 | 404 |
| Impala Auto 4-spd, 6 cyl, 3.8 L · Front-Wheel Drive | 17 | 27 | 20 | $3,100 | 444 |
| Impala Police Auto 4-spd, 6 cyl, 3.8 L · Front-Wheel Drive | 17 | 26 | 20 | $3,100 | 444 |
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
8 safety recalls as of Nov 10, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.
Owners filed 722 complaints with NHTSA. The most-cited components are electrical system (273), exterior lighting (106), engine (88). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
The EPA rates the 2003 Chevrolet Impala at 20–22 mpg combined, depending on engine and drivetrain (3 versions rated).