"How reliable is the 2001 Pontiac Bonneville?"

"Based on 179 NHTSA complaints, the 2001 Pontiac Bonneville has a median complaint mileage of 65000 miles. The most common issue is Engine And Engine Cooling."

"What are common problems with the 2001 Pontiac Bonneville?"

"The most frequently reported component in NHTSA complaints for the 2001 Pontiac Bonneville is Engine And Engine Cooling, accounting for a significant portion of the 179 total complaints filed."

2001 Pontiac Bonneville: Reliability Data

Source: NHTSA — 179 complaints

179

Total Complaints

65,000mi

Median Mileage

Engine And Engine Cooling

Top Issue

Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

30,125 25th Percentile

65,000 Median Mileage

93,941 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

Engine And Engine Cooling

Automatic Transmission

Steering

Electrical System

Engine

Power Window Devices And Controls

Fuel System, Gasoline

Air Bags

Power Train

Column

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"CONSUMER FEELS THAT HEADRESTS IN VEHICLE ARE TOO FAR BACK. IN CASE OF AN ACCIDENT, CONSUMER'S NECK WOULD NOT BE SUPPORTED. *AK *SLC"

"PLEASE DISREGARD CONSUMER'S COMPLAIN; IT IS ON TIRES NOT VEHICLE.*AK"

"DRIVER'S SIDE MIRROR VIBRATES SO MUCH THAT CONSUMER CAN'T MAKEOUT OBJECTS BEHIND VEHICLE. VIBRATION COMES AND GOES, AND ITS BEEN DOING THIS SINCE CAR WAS PURCHASED. CALLED DEALER, AND DEALER STATED THAT IT WAS A DESIGN CHRACTERISTIC OF CAR, AND THERE WAS NOTHING THEY COULD DO.*AK"

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

When Were Complaints Filed?

Number of complaints by the year the issue occurred.

When Does Each Component Fail?

Median mileage at complaint for top components.

Engine And Engine Cooling 13 complaints

25th: 93,767 mi Median: 120,000 mi 75th: 141,000 mi

Automatic Transmission 12 complaints

25th: 24,000 mi Median: 46,600 mi 75th: 68,000 mi

Steering 12 complaints

25th: 27,066 mi Median: 38,900 mi 75th: 84,263 mi

Electrical System 9 complaints

25th: 84,423 mi Median: 88,526 mi 75th: 180,000 mi

Engine 9 complaints

25th: 92,175 mi Median: 105,500 mi 75th: 160,400 mi

Where Are Complaints Coming From?

Top states by complaint count.

MI: 24 NY: 14 OH: 13 TN: 10 FL: 9 WA: 9 PA: 9 AR: 8 AZ: 7 IN: 6

Who Files Complaints?

26.8%

Original Owners

73.2%

Second+ Owners

Pontiac Bonneville — Other Years

See how this model compares across different model years.

Year	Complaints	Median Mileage	Top Issue	Crashes
1990	45	-	Antilock/Traction Control/Electronic Limited Slip	4
1991	26	-	Automatic Transmission	4
1992	139	153,000	Antilock/Traction Control/Electronic Limited Slip	17
1993	183	147,000	Antilock/Traction Control/Electronic Limited Slip	17
1994	123	127,000	Frontal	14
1995	330	115,500	Gasoline	18
1996	181	110,000	Frontal	6
1997	188	98,774	Gasoline	3
1998	359	70,226	Gasoline	12
1999	176	70,096	Gasoline	9
2000	301	65,000	Power Window Devices And Controls	4
2002	112	48,927	Steering	4
2003	64	80,500	Engine	4
2004	38	43,000	Steering	0
2005	37	130,000	Air Bags	5

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28