Which parts fail
Components named in complaints (fuel pump, injectors, fuel tank, hybrid and EV propulsion).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2006 Pontiac G6 owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2006 Pontiac G6. The contact stated that the vehicle was parked in the garage and when her husband went into the garage the next day, he smelled a strong gasoline odor. The contact stated that the odor was coming from underneath the driver's seat. There were no warning lights illuminated. The dealer and the manufacturer were notified of the failure and advised the contact to tow the vehicle to the dealer for diagnosis. The vehicle was taken to an independent mechanic who diagnosed the failure as a cracked fuel pump. The contact stated that the fuel pump was replaced. The vehicle was repaired. The failure mileage was 127,662
I had to replace the fuel pump module assembly because it was leaking fuel out from above the fuel tank and dripping down near the exhaust. A strong fuel smell alerted me to the issue and upon inspection we found fuel dripping out. This is a safety issue because leaking fuel near the exhaust is a possible problem for ignighting. There was no indication from the car itself that the leak was occurring. We had to figure it out ourselves and get it inspected at a shop and repaired immediately.
June of 2008, the service airbag light kept coming on. I took it back to the dealership where I bought the car from and they said it was the passenger side seat sensor that needed to be replace and since it was still under warranty at the time I didn't have to pay for it. After getting it fixed it hasn't come back on until about two years ago and it is now no longer under warranty and I was told if I don't get it fixed then when it comes back on then the airbags won't deploy. February of 2011, the check engine light came on and I had to replace all four of my o2 sensors and then the brain in order for the check engine light to go off. But every winter the check engine light comes back on when the temperature is 35degrees or lower and then I am unable to remote start my car. …
After driving approximately 20 miles and parking, both car interior and trunk smelled strongly of gas. Checked pavement under car for leaking gas, but did not see any. This continued to happen on subsequent drives with the smell detected while driving. I am now afraid to drive the car because the gas smell is so strong and I am afraid of a fire or explosion. I have researched online and found other Pontiac G6 owners who have identified similar problems that have been traced to a hard plastic fuel line that comes out of the fuel pump at the gas tank. The car is now parked until I can afford to have it diagnosed and repaired...too risky to drive. All of this combined with the car's history of electrical problems and anti-theft system issues are just way too much. I cannot rely on the car for transportation at all, and it is apparently worthless as a trade-in.
Tl* the contact owns a 2006 Pontiac G6. The contact noticed a fuel leak underneath the rear center end of the vehicle. When attempting to accelerate, the vehicle would "kick" before accelerating forward and stall when initially attempting to start the vehicle. The contact would have to turn the ignition key a few times before the vehicle would successfully start. The contact took the vehicle to a certified mechanic who diagnosed that fuel was leaking into the exhaust due to a faulty fuel pump and fracture on the seal to the fuel tank. The mechanic diagnosed that the seal and/or the fuel pump needed to be replaced. The vehicle was not repaired. The dealer was not contacted. The manufacturer was not made aware of the failure. The approximate failure mileage was 134,000.
This vehicle has a known safety issue regarding fuel pump failure, including leakage which presents a significant fire hazard. The year make and model of my vehicle has a current recall for this issue, but general motors denied the repair to my vehicle due to the VIN number. They claim that this specific vehicle is not covered under the recall due to the actual VIN number. Having suffered a failure of the fuel pump causing leakage and therefore a significant safety hazard, I paid to have the repairs completed at a local repair shop. This repair cost me $881.46. Clearly, this is a known issue to general motors. This significant safety issue should have been taken care of by the manufacture.
I purchased my car in 2016. When I fill it up with gas there is a very strong gas odor that lasts for days. If you walk anywhere near the car, even if it has been sitting you smell a strong gas odor. I park in my driveway and there is a big stain where gas has leaked. I have chatted with people with the same problem for this year of car and was told there were no recalls for this year. I was told it is a very dangerous situation and could result in fire. It is possible that the gas filler tube is cracked or has other damage to it. With so many other people having the same problem with this year, make and model there should be an investigation done to find the problem.
Tl* the contact owns a 2006 Pontiac G6. While operating the vehicle, the power steering suddenly malfunctioned and the steering wheel became difficult to turn in either direction. The vehicle was taken to an independent mechanic who was unable to determine the cause of the failure. Also, an odor of fuel was present inside and outside of the vehicle. The vehicle was taken to another independent mechanic who indicated that the fuel pump was faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failures, but no assistance was offered. The local dealer was not notified of the failures. The failure mileage was 150,000.
Just recently I had my Pontiac, 2006, g-6 repaired at the Chevy dealer. They couldn't find any fuel leak until the were going to drop the fuel tank. There they found the fuel leak. They removed the fuel pump and replaced a new fuel pump. I had called GM Pontiac to check on the Pontiac, 2006 g-6 recall. They said there are no Pontiac g-6 recalls. I told them that there are a lot of complaints for the 2006 Pontiac stating that the fuel pump leaks. According to airtec they did a recall on their fuel pumps model no. E3591m. This pump looks exactly like the pump they took out. They stated the fuel pump seal will leak gas.
My vehicle has a very strong odor of gasoline. This smell is present when driving and long after the vehicle has been powered off. A visual inspection by a friend who is a 'shade-tree' mechanic show no obvious leaks nor do I notice anything in the driveway. It has gotten so bad that we have to leave windows cracked. I don't have any money for repairs. I am wondering if this is something other owners have seen and if possibly there is or will be a recall? I am scared to drive the car. This has been happening (and getting worse) for the last couple of months.
Fuel System complaints in other G6 years
Frequently asked questions
How common are fuel system problems on the 2006 Pontiac G6?
NHTSA has 107 complaints about the fuel & propulsion system of the 2006 Pontiac G6, 6% of the model year's 1,910 complaints. The component named most often is delivery › fuel pump (6 mentions).
Is there a recall for 2006 Pontiac G6 fuel system problems?
No. NHTSA lists no fuel & propulsion system recall for the 2006 Pontiac G6, though it has 6 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2006 Pontiac G6 fuel system problems start?
Half of the complaints with a recorded mileage happened before about 92,000 miles, and 8% before 25,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.