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Pontiac G6 vs. Pontiac G8 Reliability by Model Generation

Results are for year ending September 30, 2016. Only successfully completed repairs are currently included in the analysis. Routine maintenance, most wear items, recalls, and problems fixed with just a reflash or warning light reset are not included.
Year and Model Percent of Average  
2008 - 2009 Pontiac G8
27.1428571429% Best 85% Worst
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What Our Members Are Saying about the Reliability And Durability of the Pontiac G6

Pontiac G6 Reliability And Durability: Pros
YearBody/PowertrainComment
2009 4dr Sedan 164-horsepower 2.4L I4
6-speed shiftable automatic FWD
I previously owned a 2005 G6 for 4 years and 70,000 miles and had ZERO problems with this car. full 2009 Pontiac G6 review
2007 4dr Sedan 169-horsepower 2.4L I4
4-speed automatic FWD
have over 40,000 and no repairs other then replacing a visor mirror, remote start key fob full 2007 Pontiac G6 review
Pontiac G6 Reliability And Durability: Cons
YearBody/PowertrainComment
2007 4dr Sedan 169-horsepower 2.4L I4
4-speed automatic FWD
Have had it in the shop 4 times. New Rag n pinion, control arm bushings, power lock and passenger window control, Power steering, Now the Drive shaft! All before 35,000 miles full 2007 Pontiac G6 review
2007 2dr Hardtop conv. 217-horsepower 3.5L V6
4-speed shiftable automatic FWD
From the surveys I have seen, the Solara (Camry) has an edge in reliability over the G6. In addition, on test drive, the retractable hardtop stalled the first time we attempted to close it. We had to open it again and retry closing it. full 2007 Pontiac G6 review
2006 4dr Sedan 201-horsepower 3.5L V6
4-speed shiftable automatic FWD
The OE tires are starting to get loud with very low mileage on them. As mentioned above, the rattling noise from the loose screws makes for a very long drive. It took five visits before GM corrected the problems. full 2006 Pontiac G6 review
2006 4dr Sedan 201-horsepower 3.5L V6
4-speed shiftable automatic FWD
Airbag sensor failed, had to be replaced twice. full 2006 Pontiac G6 review
 

What Our Members Are Saying about the Reliability And Durability of the Pontiac G8

Pontiac G8 Reliability And Durability: Pros
YearBody/PowertrainComment
2009 4dr Sedan 361-horsepower 6.0L V8
6-speed shiftable automatic RWD
Solid proven engine platform upgraded since introduction in 1955. Proven American sports car application in Corvette. Also adopted to full size trucks. Transmission is modular construction providing common affordable, dependable parts with other models full 2009 Pontiac G8 review
2009 4dr Sedan 361-horsepower 6.0L V8
6-speed shiftable automatic RWD
Have had the car for 1 year and 25000 km and have had no problems what so ever. I think with reasonable care this vehicle should do me for at least 10 years or more. The engine is a proven design and the car is rear wheel drive. full 2009 Pontiac G8 review
Pontiac G8 Reliability And Durability: Cons
YearBody/PowertrainComment
2009 4dr Sedan 256-horsepower 3.6L V6
5-speed shiftable automatic RWD
Known camshaft issues and were not addressed until check engine light came on after 27000 miles. full 2009 Pontiac G8 review
2008 4dr Sedan 361-horsepower 6.0L V8
6-speed shiftable automatic RWD
Mine has been the worst quality vehicle I have ever owned. Multiple front suspension component failures, oil leaks from new, loud alternator whine in audio system, transmission 2-3 shift quality is horrible. This is 2009 right? full 2008 Pontiac G8 review