2009 Pontiac G8 Problems: 1 Issues Every Owner Should Know
2009 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated May 2026
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2009 Pontiac G8 has 1 documented known issues, with 1 rated critical. The most serious is G8 Fuel-Tank-Module Issues + Brake Lamp Switch Recall ($30-$800 repair). Across all issues, repair costs range from $30 to $800. DIY maintenance guides at au7o.io.
All 1 Known Issues
On the 2008-2009 Pontiac G8, 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.
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.