Pontiac G6 Pontiac G6

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Pontiac G6 repairs by problem area

Engine (26%)

Transmission and Drivetrain (9%)

Brakes and Traction Control (10%)

Suspension and Steering (26%)

Electrical and Air Conditioning (18%)

Paint, Rust, Leaks, Rattles, and Trim (6%)

Other (5%)

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Chart based on 344 repairs.
See TSBs and recalls for the Pontiac G6.

Pontiac G6 transmission repair cost distribution

$2500+ (9%)

$1000 - $2499 (21%)

$500 - $999 (24%)

$100 - $499 (26%)

< $100 (21%)

Chart based on 34 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2008 Pontiac G6 4dr Sedan

219-horsepower 3.5L V6 4-speed automatic FWD

3000 mi Car would shudder under load in fourth gear. Replaced torque converter clutch spring (warranty). 
5000 mi Car would shudder under load in fourth gear. Dealer installed additive in transmission (warranty). 
8000 mi Car would shudder under load in fourth gear. Dealer replaced entire torque converter (warranty). 

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2008 Pontiac G6 4dr Sedan

164-horsepower 2.4L I4 4-speed automatic FWD

28000 mi Torque converter clutch locks and unlocks about every 5 seconds while driving between 40 and 60 MPH. Mechanic said they are using a new "More viscous" transmission fluid now so that's normal operation. At 65 MPH, TCC stays locked, as it should 

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2007 Pontiac G6

Engine not specified

26000 mi transmission lines leaking holy moly 

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2007 Pontiac G6 4dr Sedan

252-horsepower 3.6L V6 6-speed shiftable automatic FWD

114000 mi Transmission was repaired under extended factory warranty at no cost to me. Weak reverse and poor upshift. 

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2007 Pontiac G6 4dr Sedan

240-horsepower 3.9L V6 6-speed manual FWD

8060 mi Manual transmission sometimes lands in reverse when selecting first gear. 

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2007 Pontiac G6 4dr Sedan

224-horsepower 3.5L V6 4-speed shiftable automatic FWD

37700 mi

US $55
New transmission cooler lines 

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2007 Pontiac G6 4dr Sedan

224-horsepower 3.5L V6 4-speed automatic FWD

11000 mi Automatic Transmission Shift Linkage broke. Under warranty - no cost. 

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2007 Pontiac G6 4dr Sedan

169-horsepower 2.4L I4 4-speed automatic FWD

63000 mi

US $280
sensor replaced which fixed the harsh shifting issue 

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2007 Pontiac G6 2dr Hardtop conv.

217-horsepower 3.5L V6 4-speed shiftable automatic FWD

161000 mi

US $900
Replaced transmission due to coolant leaking in from the transmission cooler. Also replaced radiator. 

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2007 Pontiac G6 2dr Coupe

252-horsepower 3.6L V6 6-speed shiftable automatic FWD

123300 mi

US $280
Transmission fluid leaking. A cooling line broke, replaced both. 
127000 mi

US $2965
Transmission failed 
77000 mi

US $2000
transmission replaced 

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2006 Pontiac G6 4dr Sedan

240-horsepower 3.9L V6 6-speed manual FWD

28520 mi Key sticks in the ignition and won't come out. Manuel shifter will not go into reverse. They replaced the shifter and gave me the car back after 10 days, and then it was difficult to put into first gear. Gave it back for two additional days to repair. Completed shifter repair. 

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2006 Pontiac G6 4dr Sedan

240-horsepower 3.9L V6 4-speed shiftable automatic FWD

32326 mi front transmission mount and rear installed EED module kit for rotten egg smell 
101000 mi intermediate clutch assy. 
108000 mi

US $2300
Second time for trans. First time at 52000, second at 56000 dealer fixed for 400 deduct same problem, almost same miles - wouldn't help. Independent trans shop said that's been a problem with that trans also radiator leaking again 
133000 mi car would shake between 10 and 15 mph internal problem with trans. parts replaced covered under previous repairs 
159000 mi

US $1800
fourth time on trans repair (once under warranty from shop not g.m.) 
293700 mi

US $1600
transmission went out; car has high mileage, so it was time to replace the transmission 
70000 mi

US $150
Transmission cooler lines at the transmission were leaking. Replaced the fittings. 

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2006 Pontiac G6 4dr Sedan

201-horsepower 3.5L V6 4-speed shiftable automatic FWD

76000 mi

US $625
Replaced trans pan gasket(leaking), filter,fluid,& flush for the second time in 6mos. 
102000 mi The Transmission shift cable had to be replaced. 

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2006 Pontiac G6 4dr Sedan

201-horsepower 3.5L V6 4-speed automatic FWD

137640 mi

C $600
Replaced Axel due to damages from previous repairs (aging possibly) and Tie Rods 
77000 mi

US $350
Boot leaking transmission fluid. Part replaced. 

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2006 Pontiac G6 2dr Coupe

201-horsepower 3.5L V6 4-speed shiftable automatic FWD

125000 mi

US $3700
Transmission started making a loud whining noise when shifting. Took to dealer they recommended a new transmission as something was broken inside. 

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2006 Pontiac G6 2-door

6-cylinder automatic 2WD

30000 mi with cruise control on, car would accel even if not on a hill, but while tach shot up, car itself did not move any faster. trans appeared to "slip." later, trans was stuck in first and second, but after shutting engine off and restarting, problem only app dealer replaced valve and channel plate for previous transmission problem, new valve was defective. had to be replaced a second time. 

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Pontiac G6 Transmission Problems

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently Pontiac G6 problems occur, check out our car reliability stats.