2008 Pontiac G5 Engine Problems
- Complaints
- 5about this part
- Share
- 4%of 115 total for the year
- Median mileage
- 67,662miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 5 complaints about the engine of the 2008 Pontiac G5, 4% of the 115 complaints for this model year. Where a mileage was given, the median is 67,662 miles. 1 of these say a crash was involved, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“On the26th of june 2018 I was leaving work when all if a sudden when I started it up there was bad knocking coming from engine when increasing RPM's. I took it to mechanic and requested my oil to be changed and to check why it was knocking. At that point I was told there was metal shavings in the old oil as well as filter. I was shown this by the mechanic. He stated berrings were going and I would have to rebuild or replace the engine. Confirmed by another mechanic. Upon returning home about 30 min later I noticed fresh oil under my car. …”
NHTSA complaint #11110024, filed 2018-07, 45,000 miles“Car speeds up without pressing the gas petal and it's hard to stop it when in motion on interstate it stopped out of nowhere and turned off with an 18 wheeler behind me like to have killed me got car in neutral finally forcefully praying that jesus protect me because it would not shift into gear and pulled over to side of road. I'm scared to drive my car. Driving down road steering wheel locks up causes engine to shake whole car and backfires my car rides really rough. Messed up power steering has caused my blinkers not to work now. I'm really sad. …”
NHTSA complaint #11129639, filed 2018-09, 100 miles“As I was turning onto the highway, on my way to drop my son off at daycare before work, early march 27th, 2014, my car would not move from the stop sign I was stopped at. It was extremely scary, especially with my young son in the back seat. My car is a manual, and the stick shift would slip into each slot but not engage the gear, which lead me to assume that the transmission had gone out. My car remained running, even with my foot off the clutch, and in any gear, including reverse. I ended up having to push my car off to the side of the road and highway, with my son still inside. …”
NHTSA complaint #10576583, filed 2014-04, 142,000 miles“The contact owns a 2008 Pontiac G5. The contact stated that when attempting to stop, the vehicle suddenly stalled as the check engine warning light illuminated. The engine was restarted and the vehicle operated as normal. The failure recurred on multiple occasions. The vehicle was not diagnosed or repaired. The manufacturer was not notified. The failure mileage was 90,325.”
NHTSA complaint #10594590, filed 2014-05, 90,325 miles“The contact owns a 2008 Pontiac G5. The contact stated that while making a right turn in an intersection the vehicle failed to accelerate causing a crash with a second vehicle. During the crash, the air bags did not deploy. The driver sustained a shoulder and back injury and the passenger sustained a left torso injury which required medical treatment. A police report was taken at the scene and the vehicle was towed away. The cause of the failure was not determined. The manufacturer and local dealer were not notified of the failures. The failure mileage was undetermined.”
NHTSA complaint #11520187, filed 2023-05Related 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).
- 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.
- 10178949Jul 28, 2020This Bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC…
- 10178387Jul 27, 2020This Preliminary Information communication provides information to the technician about finding needle bearings during an oil change. Technician will gain access to the roller…
- 10176326May 21, 2020This 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…
Engine: other model years
Other parts of the 2008 Pontiac G5
35 complaintsAir bags
26 complaintsElectrical system
24 complaintsSteering
23 complaintsSuspension
8 complaintsBrakes
6 complaintsTransmission and drivetrain
5 complaintsVehicle speed control
4 complaintsExterior lighting
3 complaintsBody and structure
3 complaintsLatches, locks and linkages
2 complaintsOther or unknown
2 complaints
← All problems reported for the 2008 Pontiac G5
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