"How reliable is the 1999 Pontiac Pontiac?"

"Based on 20 NHTSA complaints, the 1999 Pontiac Pontiac has a median complaint mileage of 92658 miles. The most common issue is Control Module."

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

"The most frequently reported component in NHTSA complaints for the 1999 Pontiac Pontiac is Control Module, accounting for a significant portion of the 20 total complaints filed."

1999 Pontiac Pontiac: Reliability Data

Source: NHTSA — 20 complaints

Total Complaints

92,658mi

Median Mileage

Control Module

Top Issue

Crash Reports

When Do Complaints Happen?

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

92,658 25th Percentile

92,658 Median Mileage

92,658 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

Control Module

Power Window Devices And Controls

Engine

Latch

Front

Parking Brake

Fan

Service Brakes, Hydraulic

Exterior

Radio/Tape Deck/Cd Etc.

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"OUT OF NOWHERE THE "SECURITY" LIGHT ON MY DASH LIGHTS UP....NOW I HAVE CONSTANT PROBLEMS STARTING MY CAR. THIS IS A SEVERELY DANGEROUS PROBLEM FOR ME AS I WORK IN CAMDEN,NJ...ONE OF THE MOST VIOLENT CITIES IN THE UNITED STATES...THIS SEEMS TO BE A "PASSLOCK" PROBLEM THAT SEEMS TO HAPPEN ON ALL PONT..."

"MY DAUGHTER WAS DRIVING HER 1999 PONTIAC GRAND AM WHEN HER WINDOW SPONTANEOUSLY CRASHED DOWN. SHE WAS VERY STARTLED BY THE EPISODE. THE DIAGNOSIS BY A MECHANIC WAS THE WINDOW REGULATOR. I OWN A PONTIAC BONNEVILLE AND JUST LAST WK. HAD TO REPLACE MY REGULATORR (THE 2ND ONE ON THIS CAR). MY SON PREVIO..."

"ENGINE FAILURE AT ONLY 94,000 MILES, WITH REGULAR MAINTENANCE PERFORMED. 1999 PONTIAC GRAND AM, VIN [XXX] - LOSS OF ENGINE POWER WHILE DRIVING DUE TO FAULTY RODS/PISTONS/BEARINGS - REQUIRES REBUILD OF REGULARLY SERVICED ENGINE WITH LESS THAN 100,000 MILES. OCCURS DURING OPERATION WHICH IS EXTREMEL..."

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

When Were Complaints Filed?

Number of complaints by the year the issue occurred.

Where Are Complaints Coming From?

Top states by complaint count.

WA: 8 OH: 5 KS: 2 PA: 1 IN: 1 MI: 1 CT: 1 WI: 1

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