"How reliable is the 1999 Pontiac Grand Prix?"

"Based on 500 NHTSA complaints, the 1999 Pontiac Grand Prix has a median complaint mileage of 95809 miles. The most common issue is ENGINE AND ENGINE COOLING."

"What are common problems with the 1999 Pontiac Grand Prix?"

"The most frequently reported component in NHTSA complaints for the 1999 Pontiac Grand Prix is ENGINE AND ENGINE COOLING, accounting for a significant portion of the 500 total complaints filed."

1999 Pontiac Grand Prix: Reliability Data

Source: NHTSA — 500 complaints

500

Total Complaints

95,809mi

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.

60,750 25th Percentile

95,809 Median Mileage

137,383 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

ENGINE AND ENGINE COOLING

ENGINE

ENGINE AND ENGINE COOLING:ENGINE

ELECTRICAL SYSTEM

STEERING:RACK AND PINION

VISIBILITY:POWER WINDOW DEVICES AND CONTROLS

ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

ENGINE AND ENGINE COOLING:ENGINE:GASOLINE

STEERING

POWER TRAIN:AUTOMATIC TRANSMISSION

Severity Assessment

Crashes

150

Fires

Injuries

Deaths

Sample Complaint Reports

"LUGS:NUTS AND BOLTS SHEARED OFF THE FRONT RIGHT TIRE, CAUSING FRONT RIGHT HAND SIDE OF THE CAR TO FALL DOWN ON PAVEMENT. THE WHEEL ROLLE DFORWARD AND STRUCK ANOTHER CAR. *AK"

"REAR BRAKE PADS WORN CAUSING A METAL TO METAL NOISE."

"RIGHT DOOR SPEAKER AND DASHBOARD MAKING RATTLING NOISE."

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