"How reliable is the 2005 Pontiac Grand Prix?"

"Based on 209 NHTSA complaints, the 2005 Pontiac Grand Prix has a median complaint mileage of 71290 miles. The most common issue is ELECTRICAL SYSTEM."

"What are common problems with the 2005 Pontiac Grand Prix?"

"The most frequently reported component in NHTSA complaints for the 2005 Pontiac Grand Prix is ELECTRICAL SYSTEM, accounting for a significant portion of the 209 total complaints filed."

2005 Pontiac Grand Prix: Reliability Data

Source: NHTSA — 209 complaints

209

Total Complaints

71,290mi

Median Mileage

ELECTRICAL SYSTEM

Top Issue

Crash Reports

When Do Complaints Happen?

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

33,000 25th Percentile

71,290 Median Mileage

112,078 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

ELECTRICAL SYSTEM

POWER TRAIN

POWER TRAIN:AUTOMATIC TRANSMISSION

STEERING

ENGINE

SERVICE BRAKES

AIR BAGS

UNKNOWN OR OTHER

VEHICLE SPEED CONTROL

ELECTRONIC STABILITY CONTROL (ESC)

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"CHARGING SYSTEM FAILURE HAS APPEARED AT LEAST 12 TIMES ON THE DRIVER'S MESSAGE CONSOLE THAT I HAVE DOCUMENTED. IT IS ALSO ACCOMPANIED BY THE FAN BLOWER REPEATEDLY CUTTING IN AND OUT WHEN TURNED ON. THIS HAS HAPPENED JUST ABOUT EVERY TIME THE FAN IS TURNED ON. HAVE TAKEN THE VEHICLE IN TO HAVE THE PR..."

"2005 PONTIAC GRAND PRIX GT SEDAN VIN #[XXX] PURCHASED 12/16/2004. INTERMITTENTLY VEHICLE STALLS/ LOSS OF POWER IN THE ENGINE. WHILE DRIVING THE VEHICLE IT WILL SUDDENLY JUST LOSES POWER. YOU CONTINUE TO PRESS THE ACCELERATOR PEDAL AND THEN THE ENGINE WILL SUDDENLY TAKE BACK OFF AT A GREAT SPEED. ..."

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