Wiring Problems of GMC Acadia - part 1

GMC Acadia owners have reported 36 problems related to wiring (under the electrical system category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of GMC Acadia based on all problems reported for the Acadia.

1 Wiring problem of the 2008 GMC Acadia

Failure Date: 03/01/2021

There is water that comes down into the wiring harness of all of the doors. I am able to take the wiring harnesses off and tons of water dumps out. This has corroded many of the electrical components. The corrosion has led to locks windows mirrors and speakers not working. Please recall this. . . . .

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2 Wiring problem of the 2013 GMC Acadia

Failure Date: 12/02/2020

Air bag service light is on. Defective wiring harness. Transmition issues as per a common complaint on this vehicle. The vehicle shows all of these issues both when running parked and while in motion on all types of roadways.

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3 Wiring problem of the 2009 GMC Acadia

Failure Date: 10/03/2020

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.

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4 Wiring problem of the 2017 GMC Acadia

Failure Date: 07/31/2020

When the vehicle is put in park and attempted to shutoff, is message appears on dash that says "shift to park". This problem was reported to the dealer the 1st time it happened on June 11. , 2018. The dealership replaced the shifter. On July 31, 2020 again the shift to park message appeared. The dealership again replaced the shifter, (that shorted out) and this time installed a wiring harness that had a resister installed in the harness to prevent damaged to the shifter assembly from the over current that goes to the shifter. The service advisor said they have had numerous vehicles with this problem and the com[any should do a recall. How long before it does it again and a another $631. 36 repair bill.

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5 Wiring problem of the 2015 GMC Acadia

Failure Date: 07/21/2020

Water is getting into the rear doors and it entering the wiring harness located on both doors shorting out the radio, the amp and the turn signals. This is very dangerous and according to the forums online it is a regular occurrence.

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6 Wiring problem of the 2018 GMC Acadia

Failure Date: 11/05/2019

I am getting a error message "shift to park" even when the vehicle is clearly in park. It drains the battery because you can't shut off the vehicle with the message. Have to jiggle the shifter after several attempts it may clear the message. Had one time I got out with the error message and the vehicle began to roll with no one in it even though the shifting area said "p" for park. And sitting in my garage with car running could not get the shifter to move to reverse, drive, anything, had to shut it off 3 times before it would register. Have had the wiring harness already replaced.

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7 Wiring problem of the 2017 GMC Acadia

Failure Date: 09/15/2019

When shifting the vehicle to park and then shutting off the engine, I get an error message �action required- shift to park�. The vehicle is already in park! I've had to jiggle the shifter, press the brake while jiggling the shifter, restart the vehicle put in reverse, then back in park, and jiggle some more. The radio and lights (both interior & exterior) will not power off and the door chimes nonstop. This happens randomly and it has been a little over a month since the last incident which occurred two days after I had to replace the battery because I missed the error message heading in to work. The last 2 days my husband has disconnected the battery because nothing will work to power off radio & lights. I've had to replace the battery twice now in a new vehicle leased in 2016. The first time was due to brake recall, my vehicle being the only 2017 GMC Acadia denali effected by that recall. The brake lights would remain on because the brake was basically sticking, draining the battery. That issue also disabled the cruise control as that feature is unavailable when breaking! this vehicle also had repair to wiring in driver side door due to water getting into the door frame from outside and corroding wires causing detection issues with the key fob. I could not unlock my doors without removing the key to manually unlock. While in the car wash, the vehicle lost connection with my key and the driver's seat moved all the way back as it would for easy exit which I had disabled. Message stating key not detected wouldi was told a needed a new battery in my fob, dealership replaced, called & said everything was working as it should. They ran the vehicle through the car wash before I arrived to pick up the car. When I tried to unlock the doors, the vehicle would not recognize the fob. Thank goodness the service rep was there to witness the malfunction.

8 Wiring problem of the 2015 GMC Acadia

Failure Date: 06/01/2019

I have a 2015 GMC Acadia, I have had to replace the module to the side mirror safety lights twice. It has recently gone out again. I was told the wiring is shorting out causing the module to go out and the car to not run. GMC has a recall for this vehicle under 80,000 miles. My car currently has 127,000. 00 miles because I drive it a lot for work. I contacted GMC and explained this has been replaced twice and is a safety issue that they know about and was told there is nothing they can do for me. I am a single mother and cannot afford to have this fixed again so I have no safety module for the side mirror or park assist. GMC knows this is a problem and that it was fixed once under 80,000 miles, again under 100,000 miles and now at 127,000 it is shorting out causing issues with the car to start and even with documentation from the dealer will not fix the car under recall. If GMC will not fix their safety issues they should not be allowed to marker these as safety features on the car, especially since they are aware of the electrical issues with the vehicle and chose not to fix the,.

9 Wiring problem of the 2013 GMC Acadia

Failure Date: 04/11/2019

Gm is in non compliance with global safety field investigations dcs5011 . . . D&s motors rugby nd [a gm dealer] states they can not get the kit-acadia my 2013-14 part no. 84651473 ---- my vehicle required repair within that extended warranty time from. I am now on my 3rd failed because of water intrusion , the new wiring harnss is suppose to repair the problem and suppose to have been installed at no cost to the customer. They figure they just can not get it and that's it, they are done with me! they state even today they can not get the kit--they have them for other vehicles, but not mine--I know I will have another failer down the road--your paper says it is urgent --yes, it isw as a lot of things go wacky when it goes! gm paper says specialcoverage adjustment n172097060 side blind zone? help?.

10 Wiring problem of the 2012 GMC Acadia

Failure Date: 09/13/2018

Tl the contact owns a 2012 GMC Acadia denali. The contact stated that the vehicle often decelerated independently and would not exceed 30 mph. Also, the doors would unlock and "service stabilizer bar and service traction device" appeared on the instrument panel. The vehicle was taken to autonation of laurel (500 washington blvd, laurel, MD 20707, (866) 255-2985) where it was diagnosed that a new wiring harness needed to be installed. The vehicle was repaired. Two weeks later, the repair failed. The vehicle was taken back to the dealer three times for repairs and was currently waiting on another repair regarding the transmission's modular harness. The manufacturer was not made aware of the failures. The failure mileage was 89,000. The VIN was unknown.

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11 Wiring problem of the 2008 GMC Acadia

Failure Date: 07/06/2018

My 2008 GMC Acadia began displaying service air bag and turning off the passenger airbag intermittently when a passenger was in the front passenger seat due to the wiring harness under the passenger seat. After a few months it now stays on all the time. GMC said it's not under a recall but I have read several complaints about it with the same year make and model stating it's a recall this happens when in motion and while stoped.

12 Wiring problem of the 2011 GMC Acadia

Failure Date: 05/01/2018

I have a 2011 GMC Acadia slt. My car is equipped xenon high intensity discharge (hid tvd) low beams lamps. Both passenger and drivers side low beam light sockets have melted inside each head light assembly. The low beam lamp connectors and portions of each wiring harness have melted from the intense heat of the hid lamp. I contacted GMC customer assistance center to see if a recall has been initiated. No recall. I was given a case number and the contact information for my local customer experience manager. I was encouraged to schedule an appointment at the dealership so my light issue could be looked into by a GMC maintenance team. I was encouraged to resolve my lighting issue with my customer experience manager.

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13 Wiring problem of the 2009 GMC Acadia

Failure Date: 04/21/2017

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.

14 Wiring problem of the 2007 GMC Acadia

Failure Date: 01/01/2017

The Acadia had a recall on the sunroof for leaking large amounts of water into the interior of the vehicle during inclement weather. My Acadia had this problem and water leaked into the front passenger side of the vehicle down the frame adjacent to the door and window through the passenger side dash into the floor area. There is a fuse box located in this area as well as a very large electrical connector that connects two portions of the wiring harness. The exposure of this component to water has resulted in corrosion occurring with this connector. This is a major connector affecting multiple systems of the vehicle. The system giving me the largest cause for concern is the door locks. On a daily basis the locks won't respond to the lock/unlock button on any of the doors not will I respond to the lock/unlock button on the key remote. This poses a significant egress danger as the only way to unlock any of the doors is to manually put up the lock. This is for every door, all four of them. I have an infant in the back seat of the vehicle and in an emergency situation it would require me to literally crawl from the front driver seat to the rear seat, manually unlock the door and then attempt to exit the vehicle. This electrical connector as the fault due to corrosion from water has been occurring not just to me, it has been occurring to many owners that suffered from leaking roofs on their brand new vehicles. I feel that GMC needs to step up and acknowledge the safety hazard they created and should be held responsible. By the NHTSA if they will not do it themselves.

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15 Wiring problem of the 2008 GMC Acadia

Failure Date: 08/23/2016

Daytime running lights bulbs repeatedly burned out and now the wire harness has melted down. Fuse failed to trip. Damage has now been caused to the entire drl assembly (melting, see photo). Additionally I am concerned that whatever caused the bulb and wiring to melt will cause a vehicle fire and endanger my family. There are many cases of the drl bulb and harness melting, but my local gm dealer said there was no recall when I called to discuss the issue. Gm/Saturn released a letter authorizing paid repairs, that was valid from 2011-2013, but these vehicles are still on the road, and it needs to be a recall regardless of warranty status. The replacement parts have been recalled--gm knows there is an issue with these components.

16 Wiring problem of the 2011 GMC Acadia

Failure Date: 07/13/2016

Vehicles airbag was activated, brought to chevy dealership was told it was a wiring issue involving passenger side. Was told there was. O warranty or recalls to cover problem and would require complete rewire of harness as they were unsure which wire was causing the issue ($2,000). Through research found that it is a known problem for 2008-2011 Acadia's but our VIN wasn't designated as being involved in recall. How gm can claim that a vehicle wxperiencing the exact same issue as the recall isn't covered under the recall is ridiculous. This appears to once again be gm disregarding safety caused by their failures in production so that they can make more money.

17 Wiring problem of the 2014 GMC Acadia

Failure Date: 02/25/2016

The contact owns a 2014 GMC Acadia. The contact stated that there was premature rust and corrosion near the rear framing as well as corroded wiring in the vehicle. In addition, the vehicle stalled and was towed to the dealer where it was diagnosed that there was extensive rust and corrosion on the wiring harness. The red and white wiring was frayed and caused the wiring harness to rub against the exhaust pipe. The damaged electrical wires caused a failure in proper voltage due to the failure. The dealer diagnosed that the electrical wires and the wiring harness needed to be replaced. The manufacturer was notified of the failure. The approximate failure mileage was 42,000.

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18 Wiring problem of the 2008 GMC Acadia

Failure Date: 12/03/2014

The bose system in my 2008 GMC Acadia stopped working. I was unable to use the onstar system because there was not sound coming out of the speakers. Today we removed the wiring harness in the rear doors of the car and found water.

19 Wiring problem of the 2008 GMC Acadia

Failure Date: 11/19/2014

2 drilled holes in the sunroof are allowing water to flow throughout vehicle wiring harnesses. Water has settled in engine and harnesses. In my case, the water shorted out the amplifier. Worried that this could also create electrical fire or other malfunction(s).

20 Wiring problem of the 2011 GMC Acadia

Failure Date: 10/10/2014

I own a 2011 GMC Acadia denali with ~58,800 miles. I noticed that the driver side daytime running lamp (drl) was not working/reflecting as it should. When reviewing the issue, I noticed the drl had melted the light housing and appeared to deform the bulb socket and the wiring connected to the bulb socket. I then took the vehicle to a local dealer to look at and got an initial estimated price of ~$1,100 to fix. All parts discussed are the original parts installed by the manufacturer. I got both a GMC customer service agent and the local dealer service manager involved. Both parties agreed to step up and cover a majority of the cost. After reading other similar complaints on this website and other websites, GMC should consider implementing a recall for safety concerns of a fire starting. I also believe that I should not have to come up with any money for the repair; the repair should be 100% covered by GMC.

21 Wiring problem of the 2011 GMC Acadia

Failure Date: 10/04/2014

I noticed the passenger side drl was not functioning properly - it was out. I subsequently checked the passenger side headlight and found it was working intermittently as was the passenger side drl. The vehicle was taken to the dealer for further inspection. The inspection of the malfunctioning drl determined the housing had overheated and some of the wiring and the reflector for the drl were melted due to apparent overheating. As a result of the overheating, the entire headlamp assembly had to be replaced. Given the apparent heat build up in the headlamp assembly, this is a possible fire hazard. Additionally, given the intermittent operation of the headlamp adjacent to the drl this could be a safety hazard if both headlamps were to fail simultaneously while traversing a very dark country road at night. A review of the internet indicated this is an ongoing problem with this vehicle dating back to 2007.

22 Wiring problem of the 2011 GMC Acadia

Failure Date: 06/17/2014

Daytime running light housing and wiring melted. Dealer refuses to fix and wants $1000 to repair what is now a known issue with the design. This is a fire hazard and will reoccur after replacement.

23 Wiring problem of the 2008 GMC Acadia

Failure Date: 01/15/2014

Headlamp wiring melted the headlamp module and bulb receptacle there was no fire but there could have been I was informed there was a service directive on this that expired on 12/31 but I still had to pay $240 to have it repaired when I googled the problem I found multiple complaints about this defect. I feel it is something you should look into.

24 Wiring problem of the 2007 GMC Acadia

Failure Date: 10/29/2012

We were driving and smelled a burning smell coming from the drivers door. The drivers side windows switch, door lock switch would not work. We took it to our mechanic and he determined that the drivers side switch had burned up and melted to the door wiring harness. The switch and harness both had to be replaced.

25 Wiring problem of the 2008 GMC Acadia

Failure Date: 08/07/2012

The drl went out and we took it to the dealer to be replaced. They said the housing around the wiring/light had melted and we would need to replace the entire housing at a cost of $1,100. They stated it was a fire hazard. I am out of warranty and see that this is a common issue.

26 Wiring problem of the 2007 GMC Acadia

Failure Date: 06/13/2012

Due to installation of a factory defect part in the air conditioning system the water collection drainage system for the evaporator becomes plugged from the inside. This in turn dumps water onto electrical components of the vehicle including the blower motor and wiring harness that is located under the passenger floor. It is a non serviceable issue that required complete tear down and factory replacement parts to correct. It is a fairly common issue with the 2008 model and the newer models all come equipped with an air cleaner in the ac ducting to prevent the problem.

27 Wiring problem of the 2009 GMC Acadia

Failure Date: 11/19/2011

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.

28 Wiring problem of the 2008 GMC Acadia

Failure Date: 11/01/2011

My vehicle has an issue with the daytime driving lights and headlights. The lights have failed multiple times due to the bulb melting into, and fusing to, the headlight assembly. This created a condition where the entire headlight assembly needs to be replaced. This includes the lens piece, the bulb, and the wiring connector. This is an issue at night (no/misaligned headlights), the loss of the benefit of daytime driving lights, and I imagine a possible fire.

29 Wiring problem of the 2009 GMC Acadia

Failure Date: 10/26/2011

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.

30 Wiring problem of the 2009 GMC Acadia

Failure Date: 10/17/2011

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...

31 Wiring problem of the 2008 GMC Acadia

Failure Date: 09/02/2011

In 2011, our Acadia electrical system started to malfunction. First the driver's side headlight wiring burnt. We had that replaced. After the headlight, we started noticing the engine light was coming on and the air bag sensor was notifying us that the air bags will not deploy. None of the sounds where coming on in the car. For example, if you were not wearing your seatbelt the "dinging" did not happen. I took the Acadia in for service and they told me it was my cell phone that triggered the defect. I thank god I was not in an accident however if GMC knew of the defects why not be up front with us. My family and I travel plenty. Safety is the number one concern, we bought the Acadia faithfully and hopes GMC provides the best service possible.

32 Wiring problem of the 2009 GMC Acadia

Failure Date: 07/24/2011

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.

33 Wiring problem of the 2009 GMC Acadia

Failure Date: 05/02/2011

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.

34 Wiring problem of the 2008 GMC Acadia

Failure Date: 03/08/2011

When first starting engine a loud pop would occur. Signals, clock,stereo, dome light, battery gauge stopped working. Cheverolet dealer replaced the stereo and ampliifier ($1500 ). Then if I left Acadia in the rain I would find a small puddle of water on the floor under the emergency brake and a drop of water on the air bag on the driver side in front of the vehicle. Was told it could be the sun roof tubes were blocked so I took it to the auto glass place and had the tubes cleaned out. Very concerned about the water because I do not want to loose power in vehicle again. Just went on a trip and had to park outside in parking area and had a real puddle on my mat and underneath the mat. Today I called an auto windshield repair shop to see if the windshield could be leaking and was told that if the car was not in an accident or if it has not had the windshield replaced, they didn't think it would be the windshield leaking, that gm was good about installing and sealing the windshield. My car is kept in the garage and I am the only driver. It has never been in an accident and I am afraid that the wiring will short out, cause a soft spot in the floor, or start a fire. This automobile has only 69,285 miles and has been very well taken care of by only general motors dealerships. Serious problem involving wet elements and electrical problems here. Please let me know what to do!.

35 Wiring problem of the 2008 GMC Acadia

Failure Date: 08/01/2009

I have had multiple problems with the daytime driving lights over heating and causing the entire headlight assembly to melt. Incidences on 8-1-09 8-15-09 4-8-10 and 11-15-12. And again in 2013. The fact that there is enough heat to melt the assembly to the housing tells me there is possibility of a fire. This is obviously a design and mechanical flaw of the vehicle. The consumer end of this is that along with the chance of fire, the vehicle's design requires the entire front grill to be removed in order to replace the headlight wiring harness and housing. This labor intensive method means that replacing this part can cost upward of $900. And it still does not address the initial problem of the overheating that caused the wiring harness to melt into the housing. So you are just waiting for it to happen again and hope that it is within the 30 days warranty for repairs. And wondering if my car is going to catch fire.


Other Common Electrical System related problems of GMC Acadia


Safety Ratings of Acadia Cars
Fuel Economy of Acadia Vehicles
Acadia Service Bulletins
Acadia Safety Recalls
Acadia Defect Investigations