"How reliable is the 2009 Pontiac G8?"

"Based on 184 NHTSA complaints, the 2009 Pontiac G8 has a median complaint mileage of 41593 miles. The most common issue is AIR BAGS."

"What are common problems with the 2009 Pontiac G8?"

"The most frequently reported component in NHTSA complaints for the 2009 Pontiac G8 is AIR BAGS, accounting for a significant portion of the 184 total complaints filed."

2009 Pontiac G8: Reliability Data

Source: NHTSA — 184 complaints

184

Total Complaints

41,593mi

Median Mileage

AIR BAGS

Top Issue

Crash Reports

When Do Complaints Happen?

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

17,787 25th Percentile

41,593 Median Mileage

68,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

AIR BAGS

ELECTRICAL SYSTEM

SUSPENSION

SUSPENSION:FRONT

SERVICE BRAKES

ELECTRONIC STABILITY CONTROL (ESC)

STEERING

SEATS

FUEL SYSTEM, GASOLINE

TIRES

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"TRANSMISSION FAILS TO DOWNSHIFT IMMEDIATELY AFTER ACCELERATING, LEAVING DRIVER IN VULNERABLE POSITION OF BEING SLOW TO MERGE INTO TRAFFIC AS ANTICIPATED. THIS ACTION IS A DAILY OCCURRENCE SINCE CAR PURCHASED. *TR"

"AUTOMATIC TRANSMISSION FAILS TO IMMEDIATELY DOWNSHIFT WHEN ACCELERATING TO MERGE INTO TRAFFIC, LEAVING CAR AND DRIVER IN PRECARIOUS PREDICAMENT WITH TODAY'S HIGHWAY SPEEDS. TRANSMISSION ALSO CAUSES A VIBRATION WHEN SPEED DECREASES AND CAUSES DOD TO BE IMPLEMENTED. DEALER HAS NO SOLUTION. *TR"

"I PURCHASED A 2009 PONTIAC G8 GT IN SEPTEMBER. I LIVE IN SOUTHEAST MICHIGAN. ACCORDING THE PONTIAC WEBSITE HTTP://WWW.PONTIAC.COM/G8-2009/SPECS-FEATURES MY VEHICLE WAS EQUIPPED (STANDARD EQUIPMENT) WITH ALL-SEASON TIRES. MY PARTICULAR VEHICLE HAS SUMMER ONLY TIRES, MAKING IT UNSAFE TO DRIVE IN TH..."

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