My car stopped working all of a sudden in the middle of the road. no warning signs were made nor any of my lights came on. it’s rough running and never stays on long to drive. when i brake it completely shuts off. it overheats without the temperature gauge telling me it is. i don’t know exactly what is wrong but it’s not working now. i couldn’t go over 35 mph without it shutting off either.
Pontiac G6 overheating problems
23 of the 5,891 owner complaints about the Pontiac G6 describe engine overheating, most of them for the 2007 model year.
- owner complaints
- 23
- worst model year
- 2007
- typical mileage
- 78,000
Is there a fix? No recall or service bulletin covers this area of the car yet.
By model year
Often reported together
Headlights 12Power steering loss 2Loss of power 1Jerking 1Fuel pump 1Fuel leak 1Check engine light 1Adaptive cruise 1
What owners say
The headlight socket connector in the headlights overheat and melt ...so the headlights shut off...I have replaced them so many times..and it is a safety hazard!!!! I was driving at night and it happened. Very scary!!!! It is a bad design.
Headlight wiring harness overheated and melted, causing lamp failure and no low beam headlights.
Vehicle has been sitting since the first of february due to a constant coolant leak. Leak first appeared at bottom corner passenger side of radiator, and within a week had also showed up on bottom corner driver side of radiator. Eventually wound up replacing the overflow reservoir, 3/4" hose tee located directly under overflow, several clamps, transmission cooling lines, installed brand new radiator and oil pressure switch located directly above oil filter. After 10 days with absolutely no leaks, they reappeared in exactly the same locations. Finally traced leak on passenger side to upper corner passenger side of intake manifold gasket, and the driver side leak traces to almost directly at the coolant crossover pipe gasket. Now, I'm again facing another $200 payout to the parts store.! I'm going to make this repair myself, as I have made all repairs for the previous 6 months. My 07 g6 was wonderful for the first 3 years of ownership, but the last 3 years have become nothing more than an absolute nightmare. If I could file for reimbursement for my expenses during this time I have absolutely no doubt that with the prices of parts, current hourly rate charge set at $75-$100 hour, and reimbursement for time spent wasting time going to pick up parts the total would most likely come out to $8000-$9500. I can't even afford to pay for another vehicle, and sadly I also can't afford to continue investing in a vehicle that has become a mechanical monstrosity with an extremely voracious appetite for parts and money.
The low beam headlight socket has gotten overheated to the point where the plastic has melted away causing the light to fail while driving. I replaced this socket multiple times with the same results. I have also made sure that all grounding points were clear and working properly, which they were all in perfect condition. The date I have provided is the most recent occurrence. This is a known problem for this make and model. If you go onto the internet and do a google search it comes up instantly with countless accounts of the same issue. My sister owns the same vechile but is a 2006 and she has been fighting the same issue. This issue could possibly cause a very serious accident with fatal consequences should both lights fail at night.
The headlights have a known wiring issue. There have been reports of people that have taken thier cars to be repaired and then the same problem still exist shortly afterwards again. I am now going through this problem my mechanic was having issues finding the part. From what I have read the covering that goes over the wiring gets overheated and ends up melting the wire. This is clearly a manufactor problem and gm should be covering the expense to get this fix.
Leaking antifreeze overheating pressure building up in radiator.
Headlight bulbs for both driver and passenger sides need to be replaced repeatedly. The pigtail socket for the bulb appears to have overheated. I have owned the car for 3 years and replaced headlight bulbs six times.
Drivers side headlight went out while driving in very bad weather conditions at night. Replaced bulb and it worked for 2 days before the same thing happened. Replaced bulb again and it worked for about 10 days before it happened again. Now learning that this happens a lot on this car because the harness connector is melting and needs to be replaced but due to constant overheating it will not permanently fix this problem. Gm knows of this problem but deems it not their responsibility. Does there have to be a fatality before pontiac/gm takes this seriously?
2009 pontiac g6 passenger side headlight would intermittently go off and finally stayed off. After removing the headlight assembly, I found a melted connect to the light bulb itself. I found a replacement connector at napa auto parts and replaced it. It worked for 3 weeks and went out again. Upon opening up the light, I found the new connector melted again. There is a wiring problem causing this connector to overheat. Safety concern is if both fail over time, the driver will not have any headlights for nighttime driving. Also, the headlights are part of the daytime driving lights.
Related recalls
No recalls on record for this model year.
Questions about the Pontiac G6 overheating
Which Pontiac G6 years have engine overheating problems?
The model years with the most reports are 2007 (7 complaints), 2009 (6 complaints) and 2006 (5 complaints).
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