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

2003 Buick Regal Reliability ReportB grade · low risk · system-by-system breakdown

83/ 100

KeepScore

LOW RISK

Grade: B

A comfortable, powerful cruiser with a legendary engine, but budget for some specific age-related electrical and transmission upkeep.

Full system breakdown + what I would do

Quick Facts · 2003 Buick Regal

  • The system most likely to surface first: transmission (4t65e) (moderate severity).
  • Has 5 NHTSA recalls on record — the most notable involves the engine and engine cooling:engine.
  • Scores 5 points below the strongest nearby year — the 2001 Buick Regal earns a 88.

Is the 2003 Buick Regal Worth Buying?

The 2003 Buick Regal, especially with the legendary 3.8L V6, stands as a surprisingly robust and comfortable used car option. While its powertrain offers strong reliability, be prepared for some common electrical gremlins and specific transmission wear items that will require attention. This is a solid, no-frills cruiser that can provide dependable transportation for years if proactively maintained.

Biggest Strengths

  • Indestructible 3.8L Series II V6 engine
  • Comfortable, quiet ride quality
  • Abundant and affordable replacement parts

What Tends to Fail First on the 2003 Buick Regal

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

1
Transmission (4T65E)moderate
2
Electrical Systemmoderate
3
Engine Gasketsmoderate
Typical mileage, cost ranges, and the exact what-to-check list are in the full report.

2003 Buick Regal Recall History

5 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.

ENGINE AND ENGINE COOLING

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.

What breaks on the 2003 Buick Regal?

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

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Other Buick Regal Years to Consider

Compare KeepScores across nearby years of the Buick Regal. Click any year for its full report.

2003 Buick Regal Alternatives

Similar class, similar year range — ranked by KeepScore.

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Frequently Asked Questions

Full Report

2003 Buick Regal

7-system breakdown, mileage danger zones, repair cost projections, buyer checklist, and expert verdict.

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