1993 Pontiac Bonneville: Reliability Data

Source: NHTSA — 183 complaints
183
Total Complaints
147,000mi
Median Mileage
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP
Top Issue
17
Crash Reports

When Do Complaints Happen?

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

55,000 25th Percentile
147,000 Median Mileage
160,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP
26
ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
11
POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES
8
ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR
8
VEHICLE SPEED CONTROL
7
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER
7
STRUCTURE:FRAME AND MEMBERS
5
STRUCTURE:BODY:DOOR
4
POWER TRAIN:AUTOMATIC TRANSMISSION
4
AIR BAGS
3

Severity Assessment

17
Crashes
12
Fires
10
Injuries
0
Deaths

Sample Complaint Reports

"DIFFICULTY IN STEERING WHEN MAKING A TURN RIGHT OR LEFT. POWER STEERING SHORT, REPLACED GEAR ASSEMBLY. TT"
"LIGHT IN SHIFT INDICATOR IS INOPERATIVE. REPLACED BULB. TT"
"ENGINE LIGHT ON, SHORTED. REPLACED CONTROLLER AND ECM. TT"

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

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