Reliability AnalysisBased on known issue patterns, repair cost data, and ownership trends · How we score

2003 Chevrolet Impala Reliability ReportCommon Problems, Repair Costs & Expert Verdict

78/ 100
MODERATE RISK

Grade: C+

A budget-friendly sedan that delivers on practicality, but demands attention to its specific, well-known vulnerabilities.

Full system breakdown + what I would do

Should You Buy the 2003 Chevrolet Impala?

The 2003 Chevrolet Impala is an exceptionally practical and affordable used sedan, offering tremendous value for its size and features. While not without its well-documented flaws, particularly with engine gaskets and electrical gremlins, a well-maintained example, especially with the 3.8L V6, can be a remarkably durable and comfortable daily driver that will save you money in the long run.

Biggest Strengths

  • Robust 3.8L V6 engine (if maintained)
  • Affordable parts and widespread repair knowledge
  • Spacious interior and comfortable ride

Top Risk Areas

The systems that break first on the 2003 Chevrolet Impala. Mileage windows, repair costs, and fix-before-you-buy notes are in the full report.

1
Engine Gaskets (Upper/Lower Intake)major
2
Fuel Level Sender/Gaugemoderate
3
Front Wheel Hub Bearingsmoderate
Typical mileage, cost ranges, and the exact what-to-check list are in the full report.

NHTSA Recalls

8 recalls on record from NHTSA. Check your VIN atnhtsa.gov to see if the repair was performed.

ENGINE AND ENGINE COOLING:ENGINE

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.

ELECTRICAL SYSTEM:IGNITION

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.

What breaks on the 2003 Chevrolet Impala?

Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.

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Chevrolet Impala by Year

Compare reliability scores across nearby years of the Chevrolet Impala. Click any year for its full report.

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Frequently Asked Questions

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