Wiring problems of the 2009 GMC Acadia

I go through headlights every 6 months this last time, my driver side headlight got replaced and two days later it went out and the glass was shattered. I went and got new bulb and it did not work, after inspecting the the wiring we noticed it was burnt up and need replaced, GMC said it's on us. We have spoke with GMC about our engine burning oil which they are well aware of and the dealership tried to help but GMC refused to do anything my car send a signal telling me to turn off the car or starts miss firing every which way and gives codes saying I need new coils which is not the case. The air bag light goes off saying that there is someone in the passenger seat because the calibration get off, it took mcdaniel's to figure it out the other dealership blamed it on electronics. The windshield wiper fluid no longer comes out properly and needs something replaced so that it will go up on the windshield.

Every time it rains water enters in to the electrical system of the vehicle from an unknown location and causes problems. It drains the battery, shorts out the radio and directional signals and sounds. It causes the vehicle to continuously run even when the key is removed. My mechanic cleans out the sunroof drains every 3,000 miles knowing that could be a cause. This has been an ongoing problem for the last 4 years. After every rain my wife or I have to remove the wiring harness that connects the rear doors and the body to drain the water that has gathered in the rubber boot. There is also water that occasionally falls on the foot of the driver from under the dash while driving, again from an unkown location. My assumption is the water is entering when it is stationary and moving.

The driver side low beam headlight went out. When replacing the light bulb found that the wiring connector was partialy melted and one of the wires was hanging out. The insulation on that wire was also melted off so bare wire was exposed. The original bulb also had a burnt spot where the connector attaches.

Wiring harness to passenger side low beam headlight is defective. Thought bulb was out but after inspection found the wiring harness plug had completely melted where plugged into bulb. One wire was just hanging and could see burn marks where it had been arcing as it bounced around. Could definitely have caused much bigger problems than driving with one headlight I. E. Fire, shorting whole electrical system, and on and on. This is a very big safety concern. These were the oem headlights not aftermarket bulbs that pull more current so should not have melted the harness plug.

At approximately 38,000 miles on our Acadia, the passenger headlight appeared to fail. Upon reconnecting the headlight, I found it would work intermittently. Upon further inspection, I found the wiring connector to the low beam bulb to be melted and cracked. . Read more...

The contact owns a 2009 GMC arcadia. The contact stated that the wiring for the exterior light melted and would no longer activate, making it difficult to see at night. The dealer was in the process of repairing the failure. The manufacturer was not contacted. The failure mileage was 48,000 and the current mileage was 53,000. The VIN was unavailable.

The headlight went out and GMC quoted me at approximately $120 to replace. Husband attempted to replace it but you had to take off the wheel in order to get to the actual light. I gave GMC the go ahead to replace and they called me back and told me that the wiring had melted and that it would now be over $300 to do it. I told them no and made a complaint. They called me a few days later telling me they would do it but I had to pay $50 deductible (assuming they went through some type of warranty). It eventually became a recall and I am now looking into getting reimbursed for my $50. Noticed my car started over heating and took it into a mechanic friend, let us know that the water pump needed to be replaced this was at approx 45,000 miles. I did my research and the GMC warranty covered the cost. At approximately 56-57,000 miles the car started making a whining noise when driven slow or first thing in the morning when it was cold. Took it in to GMC to get it checked out and it turns out that the steering rack had a leak on each side of the wheels and pinions, and power steering pump needed to be replaced. Quote almost $1500 dollars. I could not afford that price so took it back to my mechanic to see if it would be cheaper. He ended up replacing the pinions and rack but said the pump did not need to be replaced and ended paying $600 out of pocket. I'm hoping that GMC will see that many of us are having the same problem and will make it a recall. I will not be buying anymore GMC vehicles. All I want is a reliable car that won't break the bank.