Wiring Problems of GMC Yukon

Brake light goes out due to wiring issues.

See all problems of the 2015 GMC Yukon 🔎.

Transmission went out at 88k miles. My sister in law also has a 2017 bought from another state and it went out at 79k miles a week after mine. Passenger side tail light works if you push on it then randomly goes out (wiring/electrical issue). Of course the drivers side tail light is the only one on recall. Cruise control set itself at over 100mph and rapidly accelerated until I hit the brakes. I received a recall for the breaking system specifically for my VIN number that needs to be fixed now that my transmission is complete.

See all problems of the 2017 GMC Yukon 🔎.

At 64,497 my wife's power steering went out on her vehicle. This happened a day after our trip to atlanta, GA. We took it to our local GMC dealership and was notified that 4 modules had to be replaced and a recommended wiring harness. In 2015 GMC vehicles had a similar issue and recall but not the 2016. This cost me $1400 in repairs.

See all problems of the 2016 GMC Yukon 🔎.

Tl- the contact owns a 2015 GMC Yukon. The contact stated that the passenger side tail light failed to illuminate. The vehicle was taking to walker Buick GMC 1616 macarthur dr, alexandria, la 71301 (318) 542-7481 where the contact was informed that pig tail wiring was corroded and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and informed the contact that there was not a recall on the vehicle. The failure mileage was 55,000. Dr.

Wiring to radiator fan caught on fire. I was driving the car when I smelled smoke. When I pulled over smoke was coming from the hood I opened the hood and there was open flames on the fan wiring wiring.

The rear tail light is not working properly. Around December 17, 2018 I was driving my vehicle on the city street and highway when several people advise me my light was out and not working. I check it once arrived at home and it was working properly and didn't problem. And a week later same issue from people pulling me over to advise me my tail light was out. Around January 10, 2019, I went in to hutchinson auto mall GMC dealer and they advise me everything is working properly and doesn't see a problem, and advise me to bring back should I experience the outage again. I inspect vehicle as well and seem no problem. 23 January 19 same problem and went back to dealer and they discover the outage and advise me the led tail light strip was out and need to replace the assembly. It appears their seem to be a wiring issue where the light is and out. To keep from a serious problem or fire. Request immediately investigation. The technician also advise me this seems to be a common problem.

Rear driver tail light wiring does not work. Put new bulbs in and only thing that works are the brake and reverse light. There is no running light that comes on.

See all problems of the 2007 GMC Yukon 🔎.

Vehicle randomly goes into reduce engine power mode and stalls while driving. This has happened multiple times while driving on a highway and going up a hill where it nearly caused a three catastrophic accidents. Basic research shows that gm has known about this issue since the vehicles were a few years old and it affects many years of gm vehicles. There is a problem with bad grounding connectors related to the throttle body sensor and and wiring harness.

See all problems of the 2003 GMC Yukon 🔎.

The contact owns a 2004 GMC Yukon. While the vehicle was stationary, water entered the hvac system and caused the blower resister module to corrode. As a result, the wiring harness heated up, which could have potentially caused a fire in the vehicle. The vehicle was not repaired. The manufacturer was not made aware of the issue. The failure mileage was 145,000.

See all problems of the 2004 GMC Yukon 🔎.

Our 2015 Yukon xl denali has been in for repair service for 41 days since purchased new 3/23/15. The car has stalled while in motion with my wife and three daughters in the vehicle twice and been unresponsive to throttle input 3 additional times. The stall occurred once while turning left across traffic and another time while turning right and merging with traffic! the problem is intermittent and GMC has never been able to replicate it. They have given us the shoulder shrug, "I don't know what to tell you, we can't replicate it" line, so here are your keys. No warning indicators, no signs it may happen, and no way to pull up the issue with their diagnostics. . . Huge safety concern and each time they have handed us the keys back after 7 days (their standard allotted time to have a loaner out) without any proactive escalation to find root cause or concern for my family's safety. The last time we took it in, they had it for 8 days and could not replicate the issue. We signed our service paperwork and I escalated to the service manager before leaving. After telling him we would be pursuing buyback, he miraculously had an idea it may be related to a wiring harness issue. This was based off his experience with a sierra pickup (5. 3l, not our 6. 2l) that had similar behavior. We left the vehicle and, wouldn't you know it, they replaced a wire and "have reasonable confidence" it resolved the issue. Two weeks later, it's back in the shop for key fob not detected (after already driving). Truck is in gear and you cannot move. . . Another huge safety concern. It's a dud. We have also had to have all 8 injectors replaced due to rough idling and the steering gear replaced from faulty manufacturing that creates a clicking while turning the wheel, the car is at the dealer and we will not be taking it back. We are going through the offical buy-back process with GMC.

I was driving down a highway at 65 mph when I began to smell smoke. At first I thought that it was just oil spilled on exhaust system. Then the smoke got worse and had a terrible odor. I looked down at the center cosole and smoke was coming out from around the edges and the ash tray area. I started looking for a pulloff as I was on a country road. As I found one fire started coming up through the gaps. My first thought was that I had a fire that was going to destroy the vehicle. So, once I was stopped I looked for my fire extinguisher but couldn't find it and then I remembered that I had bottled water in the vehicle. I grabbed 4 of them and went back to the drivers side and began to pour water down through the opening in the console that had been caused by the fire melting it. The fire was put out quickly. I then put on gloves and removed the top part of the console that had been mostly destroyed by the fire. In looking into the bottom it appears that small bits of paper, receipts, etc. Had fallen down onto the wiring harness below. My guess is that since I had plugged my xm radio into the cigarette lighter it had heated up the wires which had heated up the papers until they began to burn. I consider this a flaw in the design of the console, the cause being the cracks in the console/ash tray which would allow paper objects to fall onto the wiring harness below and cause a fire. The fire melted about six inches of insulation off the wiring harness and the wires touching each other resulted in fuses being blown. The vehicle is still driveable but as of this writing does not have overhead lights and dashboard lighting available & their is an intermittant ignition issue. I haven't been able to find a replacement wiring harness but suspect that when I do it will cost an arm and a leg. I am trying to repair the wiring by reinsulating each wire and then re-bundling them.

See all problems of the 2001 GMC Yukon 🔎.

Drivers door lock failure. According to the auto forums on the internert, this is a widespread failure, for all doors, not just the drivers. Its an electrical wiring problem with the lock actuator. Gm refuses to fix them out of warranty and has issued no recall. I read a woman's post where her toddler child almost fell out of the back seat while moving because the door failed to lock, seat belt was the only reason child survived. Gm should be ashamed for not recalling this hazard.

See all problems of the 2008 GMC Yukon 🔎.

My 2009 GMC Yukon xl has had multiple issues with the "reduced power" message. Not only is this affecting the driveability of our vehicle but also the saftey of my fmaily since this is our family car and my wife usually is driving it with out four children in it. It all started in August when the reduced power message came on for my wife with service stabilitrac and traction control, whicle she was driving our kids to school. The dealer said it was "rodent damage" to the throttle body wiring and replaced the connector. About a month later the same exact thing happened when she was going home from the kids school. The code that was scanned was p0335 crankshaft position sensor failure. The crankshaft position sensor was unplugged and reseated and the lights went away. On 10/6 the lights and reduced power message came back on, too the vehicle to the dealership and they could not find any issues "no defect found" tac case # 71-995354643. This has been an ongoing issue and with the chance of my wife and kids being stranded in the middle of no where or broke down on the side of the road is not something that I want from a car that is still under warranty! not only is this car dangerous but also a headache! I called gm customer service and the regional representitive told me that if the car is not doing anything right now then there is nothing they can do for me. I know that other people have this problem as well, I just want everyone to know and hopefully someone can get this fixed!.

See all problems of the 2009 GMC Yukon 🔎.

Door locks have failed on 3 out of 4 of the doors. Sometimes in the locked position, sometimes in the unlocked position. Some postings on this topic are referencing issues with wiring harness. If the locks were to not unlock in an car accident, or god forbid rolling over down a hill that there is the potential for loss of life. There are multiple complaints regarding this on the internet. Gm is well aware of these failures. I really believe this should fall into the recall catagory of vehicles.

"reduced engine power/stalility control disengaged" message displayed, engine went to idle and would not exceed 5-10 mph. Traffic from behind served to avoid decelerating vehicle. I understand this is something that is somewhat common with these gm models. The possibility of rear end collisions may be experienced due to rapid deceleration due to loss of power. Happened intermittently again during the day. It clears itself after the vehicle sits for a while but there is no warning when it might happen again. Information received form various forums state it is believed to be within the wiring harness for the throttle position sensor.

First owner of a 2009 GMC Yukon has had 3 door lock failures, which not only qualifies under the lemon law, but also poses a major safety issue. The first door lock failed. GMC does not consider door locks as a warranty item or safety item so I was forced to pay for a replacement. The next week, another door lock failed. The dealer did not charge for the replacement. Now, a third door lock failed only 10 days after the last repair. Why is this a safety concern? my child was able to open the door while all doors were locked. Due to e failure, the door was unlocked unknowingly. My child and any child or person risks falling out of a moving vehicle. Secondly, should a car accident occur, unlocked doors could result in a door opening and ejecting the passenger leading to death. There is a flood of complaints on the web for this issue. GMC has not owned up to it, but due to the major safety issues, this should be investigated and faulty actuators and the known pattern failure in wiring harness causing the failures should be addressed as an immediate recall.

I have had multiple ongoing electrical issues with this vehicle. Starting in 2005, the exterior electronics (I. E. Signal lights, stop lights, head lights, etc) began to malfunction. For example, I would trigger the signal for one direction and all of the signals for all directions would trigger. . . Even pressing the breaks triggered all of the exterior signals. The dealer had a hard time isolating my problem, but after several visits, the dealer was finally able to diagnose and rectify it. . . They isolated it to a junction box where all of the electronics terminate. However, by this time, my vehicle was out of warranty, so I had to cover the costs for reparing the problem myself. My most recent issues, which, by the way, seem to be common issues, are triggered by a message stating, "reduced engine power". This particular issue does not always render the same results. . . Sometimes the vehicle's speed will significatly decrease to nearly a halt, but other times I may just experience increased idling of the engine, even if I am at a complete stop. My understanding, according to hundreds of reports that I have read on the message boards, is that this issue is caused by either a wiring harness that leads from the excellerator to the throttle body or it's a defective throttle body alltogether. I have experienced intermittent electrical problems with my windows as well, but this appears to be a minor issue when compared to the other two that I addressed above. I will file a formal complaint with GMC corporate office today and see where that goes.

Wiring to rear window defroster became detached at soldering connection. Was told entire rear window had to be replaced. Yukon was still in warranty.

Headlight flicker had dealer work on it and replace one headlight but this did not correct the problem. Dealer said this was normal. Notice the flicker when I go over bumps or when cornering to the left.

After noticing that my 2003 Yukon denali had intermittent headlights/dash lights dimming, I took the vehicle to my local dealer to have it checked out. They presented me with a document that stated the gm stated this was not a malfunction and was a normal condition. There is nothing about this that is "normal". Any time, at night, a curve is taken at above 35 mph the lights flicker. I had already pinpointed that it had to do with the vses system because when the vses is turned off, this does not happen. When a curve is taken and the flickering occurs, the voltage meter for the battery drops substantially and then goes right back to normal. This is a distraction for the driver (myself), any oncoming traffic, and anyone that I am behind. This absolutely needs to be looked into before it causes injury.

My vehicle will not start periodically while it is raining or the humidity is very high. During this time, the security light will blink and you must wait a minimum of 10 minutes before it will start again. There has been one case when the car completely stopped during driving and lost all power (steering, brakes, etc). The dealer could not find out why this was occurring. The key cylinder was replaced based on a "passlock" error code in the ecu. This has not resolved the problem. I have visited many websites and found this to be a pretty common problem with Chevrolet and GMC suvs and across many years of production.

See all problems of the 1999 GMC Yukon 🔎.

I purchased a 2004 Yukon xl on 10-19-04 and I have had problems with the vehicles air bag system ever since. I have taken my vehicle in on at least 12 occasions, with repeat visits for same problem usually the same day. My car has given off numerous codes which include but are not limited to the following: b0026, b0040, b0041, b0043, b2470, b0229, b3770. I have taken my car to 3 separate dealerships where they have replaced harnesses, wires, connectors etc. None of this seems to have worked. I have for the last 6 months also have had NY horn blowing intermittently. I have called onstar to perform diagnostics on my vehicle and they have told me that the car has numerous codes coming up, and that I should not drive my vehicle until corrected, because the air bag may deploy on its own or it may not deploy if my car is wrecked. This is a very dangerous situation and I do not feel safe in my car, but I do not have any other choice but to drive it because I do not have an extra $40,000 to buy a new one. I have explained all of this to GMC's arbitration department, but they have sent me several letters stating that they are not willing to buy my car back. My family's lives are not replaceable, and I worry every time I get in the vehicle that something will happen, and this is horrible feeling for a mother, whose job is to protect her children. I would also like to say that I feel very sorry for the individual dealerships, because they have all gone out of their way to try and fix these problems, but all have been unsuccessful. It is not the dealerships fault, it is the manufacturer of the vehicle. I truly believe as my kids have said that this vehicle is truly possessed, and in my opinion not fixable.

The vehicle caught on fire underneath the dash and underneath the hood, which previously had a gas smell for about 6 months. Dealer could not determine the problem. Please provide further information.

See all problems of the 1997 GMC Yukon 🔎.

When the vehicle headlamps or park lamps were turned on, the electric trailer brakes would not respond when the vehicle brakes were applied. The consumer felt that gm should cover the expenses. . The dealer stated the brake wiring harness from the previous year was not compatible with the current year model because the electrical systems were different and a new wiring harness needed to be purchased.