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Pontiac G8 Problems and Repair Histories

Don't infer Pontiac G8 problem frequency from what you see on this page. Many lucky owners have had no repairs, and their cars are not shown.

Percentage of Pontiac G8 repairs by problem area

26% of the Pontiac G8 repairs were to the engine, 4% to the transmission, 4% to the brakes, 20% to the suspension, 25% to the electrical or air-conditioning systems, 15% to the body and trim, and 6% to other areas of the vehicle.

Chart based on 303 repairs.

Pontiac G8 repair cost distribution

Of the Pontiac G8 repairs that were not covered by warranty and were not do-it-yourself repairs, 12% cost less than $100, 50% between $100 and $499, 27% between $500 and $999, 4% between $1000 and $2499, and 8% more than $2500.

Chart based on 26 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
Non-members can see only ten Pontiac G8 problems and repair histories. Log in or join us to see them all.
Repair costs are in local units.

2009 Pontiac G8 4dr Sedan

361-horsepower 6.0L V8 6-speed shiftable automatic RWD

Pontiac G8 in Texas, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Jul 2008 0    
5000 0 Had a vibration in the driveline. 
 
Pontiac G8 in New Mexico, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Jan 2009    
0 Car died, dealer towed. Fuel pump was replaced 
4000 0 Onstar notified me. Said backup battery for Onstar system was dead, and this could result in a fire to have it replaced immediatly. Dealer replaced it same day, took about 2 hours. 
36000 0 car developed bad shimmy in steering when brakeing Rotors are warped. will repair my self can get Quality after market rotorsand Pads cheeper than dealer would sell rotors for. kept getting check engine light, gas cap would be loose. replaced under warrenty 
75000  
Pontiac G8 in California, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Aug 2008 0    
0 warranty repaint of one rear quarter panel with streak of too-thin paint. 
 
Pontiac G8 in Wisconsin, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
0 smoke coming from the left front pillar wire for the vanity light on the drivers side viser was shorting out on the frame. dealer fixed under warranty 
0 oil pan leaking from rear of pan 
9000 0 The oil pan was leaking I had to wait about one month for the part to arrive but was still able to drive the car. 
14000 0 After I had the oil pan resealed, I rechecked it and a block above the pan was leaking.  Had a filter installed in the Onstar because I could hear the engine in the speakers while using the Onstar phone.  Had panel for driver's side power seat replaced. 
17000 0 Oil pan leaking they fixed it and within weeks it was leaking again and they just gave me the run around saying it wasn't the pan. There is a rattle in the front left corner and they said that it was the control arm and the parts are ordered.  Finally they just resealed the pan. They also changed the panel on the drivers seat that holds the power seat switch again. 
21000 0 they replaced both of the lower control arms in the front and the rattle went away. The key would not stay locked in and the fob was falling apart. 
41000  
Pontiac G8 in Indiana, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Jul 2008 1000    
1000 0 Reflashed computer for a better shifting transmission. 
8000 0 Drive shaft was indexed and reinstalled to eliminate a vibration problem. Driveshaft still needs to be replaced. 
8700 0 Driveshaft was replaced. 
24000 90 Oil pan leak. Warranty covered sensor that indicates passenger in seat for airbag 

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2008 Pontiac G8

Engine not specified

Pontiac G8 in Oklahoma, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Nov 2008 1000    
1000 0 Bad front right strut bearing. 
24000 3000 Ball joints and tie rod ends wore out 
27000  

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2008 Pontiac G8 4dr Sedan

361-horsepower 6.0L V8 6-speed shiftable automatic RWD

Pontiac G8 in Michigan, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Mar 2008 0    
2000 0 ELECTRIC TRUNK RELEASE MAKES STRANGE SOUND WHEN BEING ACTIVATED. MANUAL RELEASE WORKS FINE. 
 
Pontiac G8 in South Dakota, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Apr 2008 0    
4000 0 Hesitation when taking off...fixed with transmission computer flash update. 
7000 0 Noticed a rattle in front suspension. Deemed normal by tech.  
18000 0 driver's side lower front control arms replaced due to premature wear.  
 

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2008 Pontiac G8 4dr Sedan

256-horsepower 3.6L V6 5-speed shiftable automatic RWD

Pontiac G8 in Ohio, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Sep 2008 0    
3000 0 Problems with the remote start range. Have to get right up close to vehicle. Replaced fob ...still have the same problem. 
5000 0 Problems with the remote start range. Upper and lower control arms! 

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