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Pontiac · Known Issues

2008-2009 Pontiac G8 Problems: 1 Known Issue

2008-2009 model years · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated September 2026

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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2008-2009 Pontiac G8 has 1 documented issue, with 1 rated critical. The most serious is G8 Fuel-Tank-Module Issues + Brake Lamp Switch Recall ($30-$800 repair). Across all issues with published estimates, repair costs range from $30 to $800. DIY maintenance guides at au7o.io.

In This Article

  • G8 Fuel System1
  • Recalls4
  • FAQ
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In This Article

  • Fuel System1
  • Recalls4
  • FAQ

All 1 Known Issue

Filter:
ALL YEARS20092008

2008-2009 G8 was the subject of multiple recalls including the GM-wide brake-lamp switch failure (NHTSA 14V-355 family covers many GM vehicles for the same switch). Australian-built G8s also had several fuel-tank module / fuel-pump related TSBs. Both are common at 60,000-120,000 miles.

This issue also affects: Buick LeSabre, Buick Park Avenue, Buick Regal

Common Symptoms

  • brake lights stay on
  • cruise control inoperative
  • extended cranking
  • fuel pump whine

How to Fix

Brake-lamp switch is a 15-minute DIY replacement ($30-$50). Fuel pump assembly is more involved — $400-$700 OEM part, install via the tank-top access plate (no need to drop the tank). Confirm any open recalls on your VIN — Pontiac/GM recalls remain open for free dealer repair indefinitely.

Typical repair cost:$30 - $800

Research This Issue

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NHTSA Recalls4 recalls

SEAT BELTS

General Motors LLC (GM) is recalling certain model year 2011-2013 Chevrolet Caprice vehicles manufactured October 15, 2010, to October 22, 2013, and 2008-2009 Pontiac G8 vehicles manufactured July 25, 2007, to February 18, 2009. In the affected vehicles, the flexible steel cables that connect the seat belts to the vehicle at the outside of the driver seat and the front passenger seat may be bent from being sat on while entering the vehicle. This repeated bending may result in the cable breaking.

Campaign #15V39900023/06/2015

ELECTRICAL SYSTEM:IGNITION

General Motors LLC (GM) is recalling certain model year 2011-2013 Chevrolet Caprice vehicles manufactured October 15, 2010, to December 6, 2013, and 2008-2009 Pontiac G8 vehicles manufactured July 25, 2007, to February 18, 2009. In the affected vehicles, the driver may accidentally hit the ignition key with their knee, unintentionally knocking the key out of the run position, turning off the engine.

Campaign #14V54000009/09/2014

AIR BAGS:FRONTAL:SENSOR/CONTROL MODULE-INACTIVE

GENERAL MOTORS (GM) IS RECALLING CERTAIN MODEL YEAR 2008-2009 PONTIAC G8 VEHICLES MANUFACTURED FROM NOVEMBER 2, 2007 THROUGH JANUARY 22, 2009. A 5TH PERCENTILE FEMALE ANTHROPOMORPHIC TEST DEVICE (ATD) IN A 30 MPH FRONTAL BARRIER TEST EXCEEDED THE HEAD INJURY CRITERIA (HIC) REQUIREMENTS OF THE STANDARD. WITH THE FRONT PASSENGER SEAT POSITIONED FULL FORWARD, THE SEAT POSITION SENSOR WILL CAUSE A 30 MILLISECONDS DEPLOYMENT DELAY BETWEEN THE FIRST AND SECOND STAGES OF THE DUAL-STAGE FRONTAL PASSENGER AIR BAG.

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Frequently Asked Questions

What are the most common Pontiac G8 problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2008-2009 Pontiac G8 has 1 documented issue. The documented issue is: G8 Fuel-Tank-Module Issues + Brake Lamp Switch Recall. Of these, 1 is rated critical and should be addressed promptly.

Is the Pontiac G8 reliable?

The 2008-2009 Pontiac G8 has 1 known issue compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 1 issue is rated critical: G8 Fuel-Tank-Module Issues + Brake Lamp Switch Recall. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Pontiac G8 problems?

Repair costs for known Pontiac G8 issues range from $30 to $800, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, G8 Fuel-Tank-Module Issues + Brake Lamp Switch Recall, typically costs $30-$800 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2008-2009 Pontiac G8 G8 Fuel-Tank-Module Issues + Brake Lamp Switch Recall?

2008-2009 G8 was the subject of multiple recalls including the GM-wide brake-lamp switch failure (NHTSA 14V-355 family covers many GM vehicles for the same switch). Australian-built G8s also had several fuel-tank module / fuel-pump related TSBs. Both are common at 60,000-120,000… Repairs typically run $30-$800. Severity: high.

Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.

Data compiled from NHTSA recalls, manufacturer TSBs, automotive forums, and AI-assisted research. No aggregated owner-report counts available for this vehicle yet.

Campaign #11V53400004/11/2011

SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE

GM IS RECALLING 35,038 MY 2008-2009 PONTIAC G8 VEHICLES FOR FAILING TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT" AND FEDERAL MOTOR VEHICLES SAFETY STANDARD NO. 138, "TIRE PRESSURE MONITORING SYSTEMS". THE BRAKE PEDAL POSITION SWITCH MAY HAVE BEEN INCORRECTLY PROGRAMMED. WITH THIS CONDITION, THE BRAKE LAMPS MAY BE CONTINUALLY ILLUMINATED AND FAIL TO WARN A FOLLOWING DRIVER WHEN THE VEHICLE IS BRAKING. ALSO CERTAIN VEHICLES MAY HAVE INCORRECT VALUES PROGRAMMED INTO THE TIRE PRESSURE MONITORING SYSTEM THAT WILL NOT ILLUMINATE THE LOW TIRE PRESSURE TELLTALE UNTIL TIRE PRESSURE FALLS BELOW VALUES REQUIRED BY THE STANDARD.

Campaign #09V17200021/05/2009

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