2003 Pontiac Bonneville problems & reliability
54 owner complaints filed with NHTSA for the 2003 Pontiac Bonneville, alongside 2 safety recall campaigns. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
2 complaints report injuries (2 injured).
Federal crash records (FARS 2020–2023): 2003 Pontiac Bonneville vehicles were involved in 11 fatal crashes with 7 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Electrical System → | 10 | 19% |
| Steering → | 10 | 19% |
| Engine | 9 | 17% |
| Engine and Engine Cooling | 6 | 11% |
| Power Train | 6 | 11% |
| Unknown OR Other | 5 | 9% |
| Air Bags | 3 | 6% |
| Fuel/propulsion System | 3 | 6% |
| Fuel System, Gasoline | 3 | 6% |
| Visibility | 3 | 6% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Mileage when problems occurred
Half of the failures with a reported odometer reading occurred by 78,029 miles (middle 50% between 40,450 and 104,616 miles), based on 39 complaints that included mileage.
Complaints by incident year
What owners report
“Look at the car the car is located [XXX] first of all you start off as a passcode 2 system and then it says passcode 3 system on the thing and I just don't want to deal with this because you have the cut off switch you have the fuel cut off switch but you still have current going through the switch or the fuel they…”
Electrical System · filed Jul 14, 2026
“Tl* the contact owns a 2003 pontiac bonneville. While the vehicle was stopped at a stop sign, smoke emerged from underneath the hood without warning. The vehicle was taken to an independent mechanic. The contact called a local dealer (wheelers chevrolet of medford, 704 n 8th st, medford, wi 54461) and was referred to…”
Engine · filed Feb 12, 2018
“With the key turned to acc you can pull the car out of park without depressing the brake pedal. With the key turned to run you must depress the brake pedal to pull it out of park. Car is not running. Also checked 3 other pontiac bonneville's. One is a 2002 vin # [xxx]. They all showed the same operating…”
Power Train · filed Apr 10, 2017
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Technical service bulletins
424 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2003 Pontiac Bonneville. The 10 most recent:
This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
PIP5601C · Service Bulletin/Repair Instructions · issued Jul 18, 2025
This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
23-NA-001 · Service Bulletin/Repair Instructions · issued Mar 28, 2025
This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or…
PIP5358D · Service Bulletin/Repair Instructions · issued Feb 20, 2025
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8…
PIP4723J · Service Bulletin/Repair Instructions · issued Oct 25, 2024
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician…
PIT5099H · Service Bulletin/Repair Instructions · issued Sep 12, 2024
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician…
PIT5099H · Service Bulletin/Repair Instructions · issued Sep 12, 2024
This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized…
PIT3271P · Service Bulletin/Repair Instructions · issued Sep 6, 2024
Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to…
General Communication · Service Campaign · issued Aug 26, 2024
This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how…
16-NA-383 · Service Bulletin/Repair Instructions · issued Jun 28, 2024
This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.
18-NA-099 · Service Bulletin/Repair Instructions · issued Jun 17, 2024
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 2003 Pontiac Bonneville has 2 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2003 Pontiac Bonneville?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Owners most often reported problems around 78,029 miles — budget accordingly if the car is approaching that mileage.