1999 Pontiac Bonneville Other or unknown Problems
- Complaints
- 4about this part
- Share
- 3%of 143 total for the year
- Median mileage
- 100,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the other or unknown of the 1999 Pontiac Bonneville, 3% of the 143 complaints for this model year. Where a mileage was given, the median is 100,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The fuel gauge of the vehicle goes all way down to e then can spike back up to full especially after filling the tank completely. The gauge also will randomly drop and stay on e when there is about 1/4 tank of gas left.”
NHTSA complaint #10412715, filed 2011-07, 100,000 miles“Vehicle shuts off or stalls. Engine check light appeared on/off, and vehicle lost all power steering & brakes. Dealer installed a monitor device to tract other conditions of the vehicle factory related problems. Also, replaced the crank sensor in hopes it would remedy the problem. Vehicle operated for a couple thousand miles & problem came back.”
NHTSA complaint #865085, filed 2000-07“Engine check light illuminates on dashboard due to vehicle overheating. Coolant was draining out the reserve into intake valve. Dealer was notified. Please provide more information.”
NHTSA complaint #8014579, filed 2002-07Other or unknown: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2005 | 2 | 7% |
| 2004 | 1 | 4% |
| 2003 | 5 | 9% |
| 2002 | 1 | 1% |
| 2001 | 4 | 3% |
| 2000 | 2 | 1% |
| 1999 | 4 | 3% |
| 1998 | 8 | 3% |
| 1997 | 4 | 3% |
| 1995 | 12 | 5% |
| 1994 | 4 | 5% |
| 1993 | 2 | 1% |
| 1988 | 2 | 12% |
| 1987 | 1 | 5% |
Other parts of the 1999 Pontiac Bonneville
59 complaintsFuel system
23 complaintsElectrical system
22 complaintsBrakes
9 complaintsAir bags
8 complaintsTransmission and drivetrain
8 complaintsVisibility (wipers, defrost, mirrors)
6 complaintsTires
5 complaintsVehicle speed control
4 complaintsSteering
3 complaintsBody and structure
3 complaintsSuspension
3 complaints
← All problems reported for the 1999 Pontiac Bonneville
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology