2008 Pontiac G6 Engine Problems
- Complaints
- 36about this part
- Share
- 3%of 1,080 total for the year
- Median mileage
- 94,000miles
- Trend
- StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
NHTSA recorded 36 complaints about the engine of the 2008 Pontiac G6, 3% of the 1,080 complaints for this model year. Where a mileage was given, the median is 94,000 miles. 1 of these say a crash was involved and 3 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Gear shifter moves but car rolls as its in neutral no matter what when I went to put my car in park it still rolled forward, when I put it in reverse it still rolled foward. Its as if the gear shifter isn't putting it into the correct gear. Now I have turned my car off and it won't restart because it doesn't think its in park? What could this be?”
NHTSA complaint #11096517, filed 2018-05, 140,000 miles“I was driving and my car started to reduce speed, hesitate, and jerk when put my foot on the gas at a light to pull off or even with my foot on the gas pedal driving. My car couldn't pick up speed past 25 miles and sometime less. A message came up on my dash board stated flashing reduce engine speed. I was near auto zone when it happened so I asked to have a dianostic completed and it stated throttle/ pedal position sensor/ switch e circuit low input meaning code p2127.”
NHTSA complaint #11218734, filed 2019-06, 111,540 miles“I was driving my Pontiac g6gt and came to a stop sign. I stepped on the gas and the car revved at high RPM's. I could not go forward I was able to go in reverse, I have a 4 speed auto transmission. I was able to shift to m1, m2, m3,m4 then switch over to drive and go. When I stopped at stop sign I had to use start with the m1 auto stick. I called onstar they ran an diagnostic an told me I have a n p0523 error with oil pressure.”
NHTSA complaint #10816662, filed 2015-12, 114,530 miles“Driving on the fwy and suddenly all of my hazard lights start turning on at once. My car started to lose power and I had to pull off to the side, not even my emergency lights would work. This is the 2nd time this has happened, the last was a few months ago and had the alternator replaced. Could it be the alternator again? I think not, I have also had issues with my power windows. I am not a mechanic but, I believe there is an electrical problem that is causing a shortage.”
NHTSA complaint #10822055, filed 2016-01, 10 miles“For 2 yrs I have had temp gauge problems and a reading that says ck rse. Every time this ck rse shows up the temp gauge drops I explained this to the dealr on several occaisions they assured me that ck rse means ck rear seat entertainment center I don t have rear seat entertainment center I am still having the same problems after being serviced ck rse still pops up on radio center and I still have temp gauge and air problems and the body of my car seems to leak water aroun doors and bumpers”
NHTSA complaint #10895455, filed 2016-08, 75,000 milesRelated service bulletins
- 11009531Sep 27, 2024This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
- 11007116Aug 6, 2024This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
- 11007091Aug 5, 2024This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
- 11000119Apr 26, 2024This service bulletin provides technicians with information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
- 10242298Aug 10, 2023This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308…
- 10211658May 2, 2022This service bulletin provides policy information on warranty administration guidelines for multiple repairs with independent causes (GM Canada Dealers Only).
- 10205052Aug 20, 2021This service bulletin provides diagnostic aid information/procedures to perform inspections to determine if the engine needs to be replaced as opposed to just internal parts for…
- 10199244May 24, 2021This service bulletin provides diagnostic aid procedure to perform inspections to determine if the engine needs to be replaced as opposed to just internal parts for knocking…
- 10199238May 3, 2021This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.
- 10187751Jan 14, 2021This service bulletin provides diagnostic aid procedure to perform inspections to determine if the engine needs to be replaced as opposed to just internal parts for knocking…
Engine: other model years
Other parts of the 2008 Pontiac G6
420 complaintsExterior lighting
243 complaintsElectrical system
225 complaintsBrakes
154 complaintsAir bags
101 complaintsTransmission and drivetrain
83 complaintsVehicle speed control
67 complaintsFuel system
62 complaintsElectronic stability control
44 complaintsOther or unknown
25 complaintsLatches, locks and linkages
23 complaintsSuspension
22 complaints
← All problems reported for the 2008 Pontiac G6
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology