2003 Pontiac Bonneville Pontiac Bonneville 2003

We are 103,000+ car owners sharing real-world car information.

Join Us

2003 Pontiac Bonneville repairs by problem area

Engine (50%)

Transmission and Drivetrain (0%)

Brakes and Traction Control (13%)

Suspension and Steering (38%)

Electrical and Air Conditioning (0%)

Paint, Rust, Leaks, Rattles, and Trim (0%)

Other (0%)

Select a problem area

Need advice about a specific Pontiac Bonneville problem?

Chart based on 8 repairs.
See TSBs and recalls for the 2003 Pontiac Bonneville.

2003 Pontiac Bonneville repair cost distribution

$2500+ (0%)

$1000 - $2499 (0%)

$500 - $999 (17%)

$100 - $499 (0%)

< $100 (83%)

Worried about potential repair costs? An extended warranty can provide peace of mind.

Chart based on 6 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2003 Pontiac Bonneville 4dr Sedan

supercharged 240hp 3.8L V6 4-speed automatic FWD

Pontiac Bonneville in Illinois, United States
- Mar 2011
Nov 2010

60000 mi

US $80
Replaced front pads and rotors because front rotors were warped. Replaced rear brake pads because rear pads were worn out. Replaced rear shocks because of fluid leaking. 
Mar 2011

62500 mi

US $55
Replaced valve cover gaskets. 

Return to top

2003 Pontiac Bonneville 4dr Sedan

205-horsepower 3.8L V6 4-speed automatic FWD

Pontiac Bonneville in Ohio, United States
Dec 2020 - Jun 2022
Apr 2022

96000 mi

US $700
Replaced Intake Manifold gaskets. Were leaking coolant. Replaced rear shock absorbers. 
Pontiac Bonneville in Illinois, United States
- Feb 2014
Feb 2014

106000 mi

US $975
Serpentine belt tensioner bearings went bad, causing belt to get torn up, causing engine to overheat. Replaced bearings and serpentine belt. Replaced leaking coolant elbows, broken stabilizer link, brake lines to rear breaks (were rusting through) and leaking fuel fitting. 

Return to top

See TrueDelta's information for all Sedans
See TrueDelta's information for all Pontiac models.

2003 Pontiac Bonneville Repair Histories

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently 2003 Pontiac Bonneville problems occur, check out our car reliability stats.