Electrical System Problems of GMC Yukon - part 1

I am the owner of a 2024 GMC Yukon (VIN: [xxx] ), purchased from hatchett Buick GMC on [xxx]. This vehicle was purchased at a high price with the expectation that it would provide reliability and keep my family safe. Unfortunately, that is clearly not happening. The Yukon continues to suffer from severe power loss that neither the dealership nor gm technicians have been able to diagnose or repair. In addition, this vehicle is subject to an unresolved engine recall, further undermining safety and confidence in the vehicle. Multiple times while driving I have had total power loss with no warning or indicators of this happening through lights or warnings on the vehicle. This is separate from the engine recall issues I am currently experiencing as well. While driving the Yukon will lose all electrical power. The vehicle is still currently at the dealership trying to be diagnosed. It has been 2 weeks. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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We brought my 2023 GMC Yukon into parks GMC in greenville SC on July 26, 2025 for the engine recall that we received a letter from. We left it as we were going on vacation for the week and picked it up the following Saturday August 2nd. The next week my engine light started lighting up and my husband contacted the dealership and we were asked to bring it back in. We did and were told that we now had a bad telematics communication interface control module that was causing my engine light to come on and that we were going to have to pay $600. 00 out of our pocket to have this repaired. After researching we found that this is a very common and widespread problem with a lot of owners right after they bring their vehicles in to be serviced. We declined the repair, one because they did not have the part in stock as that apparently is also a big problem of not being able to get the part in stock and two because we feel like we should not have to pay to have this part replaced as it appears to be a widespread issue that is happening. The dealership also charged me $182 for diagnostic charges that I once again feel like we should not have had ton pay. Please advise us ASAP. Our contact info is [xxx] [xxx] & [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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I have had problems with the navigation system where the screen goes blank. The radio is not responding and screen is black. When turning on the signal light you can't hear it. The speed limit in my town is 25 and after an update from the dealership it now says 55. I get an alert saying frontal crash not available atleast once a month. There are times when we are driving and we get the red alert as to detecting an object and there is nothing there. Parking assits does not work all the time.

The onboard accident emergency notification system has failed after 2 years. The sos and onstar are not functional. Car has no data communication with the network. Was confirmed by crenwelge motors in kerrville texas. It is a GMC dealer. This is an ongoing problem with many Yukons made from 2022 to 2024. Gm has not addressed the issue with a recall and does not have the parts to repair this safety system.

I was driving from new orleans with my family when traveling at 75 mph when it’s like the transmission started straining and the engine was losing power/pressure it’s like the engine or transmission was struggling I’m not sure what was causing it but it was a scary experience knowing I’d my kids and my wife with me and we were out in the middle of nowhere.

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My vehicle’s engine failed for the second time while driving on the road. The first time a few months ago while my wife was driving. The engine failed and brakes failed. Fortunately she was on a back road a coasted to a stop. Car was towed to dealership. They said there was no problem. Received recall letter about a month ago outlining this issue. Yesterday, [xxx], I was driving with my daughter and the car stopped again while driving. I was in traffic and narrowly missed an accident. Gwinnett county police came to the scene and towed the vehicle to the dealership. I am not sure if the female officer made a report. But she requested the tow truck because I was blocking traffic. We often drive on the highway for work commutes. This could have happened and anyone in my family could have been fatally injured. I would like GMC purchase this vehicle back or replace with a safer model comparable or better. The service department called me this morning from jim ellis GMC in buford, georgia 678-902-8677, 3600 buford drive 30519. I was told that there is no recall for my truck. He told me that there is a safety investigation for a recall. I told him I can bring the letter. He decline. I asked for a courtesy vehicle. He said no, he would have to make a report and it would be up to 48 hours. Once it’s reviewed , then I could go to enterprise car rental to pick up a car. Maybe. The first time rick hendrick GMC duluth , GA 470-822-3779, 3344 commerce Ave, duluth, GA had my truck for about 2 weeks. No fix. No courtesy vehicle or rental. Now I’m without my vehicle for unlimited time. The jim elis tech, did acknowledge that there is no fix for what is going on. The local GMC dealers are not making this easy or putting the safety of its customers as a priority. These trucks are not safe on the road. This truck cost nearly $100,000 and it is not safe to drive. GMC has a record of the 1st service incident and this latest just happened yesterday. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(.

Vehicle: 2021 GMC Yukon denali component: fuel system, gasoline – fuel pump control module incident date: 7-10-2025 mileage 61,263 location: sr 2006 coats, nc summary of complaint: while my wife was pulling out of our neighborhood in our 2021 Yukon denali, the vehicle suddenly shut off while navigating a slight curve. It came to a complete stop in the roadway and could not be restarted. The engine would not crank, and the vehicle could not be shifted into neutral, making it impossible to move out of traffic. The Yukon remained disabled in the roadway for over an hour and ultimately had to be towed. Upon inspection, the dealership mechanic immediately identified the issue without even running diagnostics. He confirmed it was a failed fuel pump control module, which he stated is a common issue with this model. This failure represents a serious safety risk, particularly had it occurred on a high-speed interstate or in dense traffic. A sudden loss of power and inability to move the vehicle can result in dangerous roadside situations or collisions. GMC needs to address this recurring defect before it leads to more severe incidents or injuries. No warning lights or indicators appeared prior to the failure.

Speed control became stuck and I had to hit my breaks to stop acceleration. Vehicle stopped shifting while driving down the road periodically. Warning collision lights and traction control lights randomly come on with nothing in front of vehicle. Yesterday vehicle would not start or even unlock. When I did get the vehicle to start by manually unlocking it and trying over and over it would not go forward or backward although the engine did rev up. All warning lights were on including traction control and check engine. It did randomly start moving but the “service steering column” light and check engine light are still on . The car periodically revs up while going down a hill when it needs to downshift instead. It has completely shut off driving down the road through town and stopped. I had to hurry and turn it back on as there were cars behind me. It’s a 2023 and I don’t feel safe driving it with my kids.

The on star module no longer working. This is a safety feature included in the manufacturing of the vehicle.

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I experienced hybrid battery module catching fire till was water thrown on it unknown raison after I planned to buy used battery from other junkyard truck and before replacing wanted to check everything okay I notice that there black mark caused by short circuit on the same place but everything was looking good from out till I unplugged the module wire for clean up I saw the burn so my conclusion was that there is issue with hybrid module that can cause fire and much more, I have pictures to show.

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For whatever reason our 2021 GMC Yukon denali is not listed in the current 2025 GMC motor recall including cams and lifters and accompanying parts. While driving our truck about a mile from the house the vehicle began seizing and shaking (almost as if we had blown several tires); we immediately pulled over and accessed. Called dealership and had truck towed there immediately. We are told that it needs cams and lifters and that b/c our VIN does not pull up a recall that the repairs will cost ~$9800.

The driver-side headlight and turn signal on my 2022 GMC Yukon stopped functioning completely. This issue began before gm recall 22v?903 and worsened immediately after the recall repair was performed. The recall repair required three separate dealership visits because it was initially performed improperly, yet the problem was never fully resolved. During interactions with gm and the dealership, I was told the repair might involve a $600 part, but they could not guarantee that replacing it would fix the issue. It is unreasonable and unsafe for me to be expected to cover the cost of repairs for a problem that was caused or worsened by a recall repair performed incorrectly. The malfunction creates a serious safety hazard, as oncoming drivers cannot see my turn signals, and I nearly had an accident because of it. The problem has been confirmed by the dealership and documented in gm case #74327012. Prior to complete failure, the driver-side turn signal and daytime running lights occasionally stayed on after shutting off the vehicle which I was told that was caused by the recall. The vehicle has been inspected by authorized gm dealerships multiple times, but the defect persists. The component is available for inspection upon request.

I was driving on a highway with my [xxx] son and 2 dogs when without any warning the vehicle just stopped and completely went dead. I was unable to turn on the hazards so I called 911, the police came within minutes and surrounded the vehicle to keep us from being crashed into. The brakes failed to work, the hazard lights would not work, the doors would not open other than the driver door. The police had to help remove my child and 2 dogs from the vehicle through the driver door. The vehicle could not be put into neutral so the police had to tow the vehicle from the middle of the highway. The result could have been deadly. The vehicle was completely dead with absolutely no function. After the police towed it to the police tow facility it was then towed to the GMC dealership I purchased the vehicle from. The dealership is jim curly GMC in keyport NJ. The dealership has had the vehicle since Saturday and is claiming to not know what is wrong with the vehicle. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

I am experiencing ongoing issues with the infotainment system in my vehicle, which has remained unresolved despite multiple service visits. The system frequently blacks out, reboots while driving, and fails to function entirely at times, for days at a time. This is more than an inconvenience — it presents several serious safety concerns, including: •loss of the rearview camera and parking assist features, making reversing hazardous. •inability to access hands-free calling and navigation, increasing the risk of driver distraction and noncompliance with hands-free driving laws. •disruption of access to climate controls and safety alerts that are routed through the infotainment system. •frequent system crashes while driving, which divert my attention from the road. These issues compromise both the safety and usability of the vehicle, and I am requesting immediate action to resolve the problem under warranty.

I’m filing this complaint regarding my 2022 GMC Yukon denali (VIN: [xxx] , msrp ~$76,805) with an unresolved l87 engine recall. I made an appointment at my local GMC dealership on 5/8/25 specifically for the l87 recall. Upon arrival, staff only documented the serial data gateway module recall, which I hadn’t even known about. When I mentioned the 6. 2l engine, I was asked if I was “sure. ” I believe I was treated dismissively because I’m a woman. After pushing back, staff pulled up the bulletin, confirmed my engine needed replacement, and told me to “drive it until it blows up or there’s a fix, whichever comes first. ” the l87 was only added to my receipt after I insisted—it was falsely listed as an “added operation,” though it was the reason I came in. I sent a certified letter to gm on 5/12/25 (signed for on 5/15/25) confirming the date I tendered the vehicle. Both gm and the dealer were fully aware the 60-day federal repair window had begun. It is now well past that deadline, and the l87 recall remains unresolved. Compounding the issue, the ac failed on [xxx], and the vehicle has been parked since early June due to extreme ky heat, making it unsafe to drive my children. I rely on this vehicle for daily commuting—driving ~100 miles/day for work—and it is also the only vehicle we own capable of towing our family boat, which has now sat unused all summer. I am currently paying $1,000/mo for the Yukon, $600/mo for the boat, and $200/mo for insurance—$1,800/month in preventable financial losses caused by gm’s failure to act. No repair has been offered. No loaner vehicle has been provided. No response has been received. I believe I was misled and discriminated against at the dealership, and I am now financially burdened and without a safe, reliable vehicle. This situation qualifies under the national traffic and motor vehicle safety act for repurchase, compensation, or forced resolution. I am requesting a formal investigation and full remedy. Information redacted pursuant to the freedom of information act (foia.

The vehicle main information cluster randomly goes in and out and now has completely stopped working. This is the information display that shows park, nuetral, drive, reverse, fuel gauge, digital mph and other information such as oil tire pressure, turn signals, forward collision. Just knowing if the vehicle is in park reverse or drive is a huge saftey issue. This seems to be a common problem on gm vehicles and I wcan't seem to find a recall issued for the saftey factor that the vehicle can be assumed to be in park and it's actually in reverse. The first time I noticed this problem was sept. 05, 2020 but it had reset when I restarted the vehicle. The problem would resurface occasionally but always came back on when restarting the vehicle. But know it seems that restarting the vehicle is not fixing the problem and the screen has been blank for the last 3 days.

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While driving at approximately 30 mph in moderate traffic on the interstate during a return leg of a 370-mile trip, my vehicle unexpectedly shifted into neutral and became unresponsive. The dashboard displayed the warning message: "condition not correct for shift," and despite repeated attempts to restart the engine, the vehicle would not engage. Although the electrical system remained active, I had no propulsion. Critically, the vehicle became immobilized in a **very dangerous curve on the interstate**, presenting an extreme safety risk to myself and others. The car could not be manually shifted into neutral for towing, prompting illinois department of transportation (idot) to declare the location unsafe. I was stranded there for over three hours, after dark, in a vulnerable and exposed position. During the forced tow process, two rear tires were destroyed and the two front tires sustained major damage. In the days leading up to this incident, the vehicle had also shown signs of malfunction, such as delayed acceleration from a stop and occasional lurching forward — symptoms consistent with the defect described in the recall.

Rear view camera fails to display on screen when vehicle is shifted to reverse. Failure remains during the remainder of ignition on cycle. The failures does not generate system error codes. Dealer service unable to diagnose failure.

Engine was replaced 11/24 found toe bar loose and rear passenger tire had excessive slack in it, well liners were broken off and missing 2/25 oil loss and had to have oil changed early 4/21 start button will not engage, truck is completely blacked out, no power to it for several minutes then it will crank. Been in the shop as of now 3 times in the month of may 2025.

Engine light keeps appearing and when checked it shows catalytic converter needs replaces and its sensors need replaced. Brake light has short in it and I repaireable.

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I jumped in and turned the car on and started driving. Right away I noticed most of the warning lights were on. The first speed bump in the complex made me realize I had lost 80-90% of my brakes as if I had a broken brake line for example and steering was a little hard and pulling a bit to one side. I check underneath I did not have any leaks. I decided to take it to the dealer to have it checked. Dealer said they were not able to find anything and cleared the codes. Dash lights check engine lane depart drive assist abs brake.

Liftgate opening without pushing the button, it just randomly opens.

While driving 75 on the highway the vehicle shut off completely, shifted to neutral and a message flashed on the dashboard to "press start again". This has happened previously when my 16 y/o was driving but we chalked it up to user error. Scheduled appointment with dealership. There were no warning lamps, no lights illuminated on the dashboard. The vehicle just cut off and I have not been able to reproduce the issue.

A side detection module pin was corroded and was disrupting the electrical signals to major vehicle components, such as the dash (dic). The dic would lose communication with the rest of the vehicle while driving so no vehicle operation data was visible such as speed, alerts messages, etc. This likely also caused engine failure due to the incorrect operation of the afm which is on the same electrical circuit. No warning messages were given. The bad side detection module was diagnosed and fixed at a dealer and shortly after engine issues were noticed.

The engine system (6. 2l v8 l87) in my 2022 GMC Yukon xl failed due to a known manufacturer defect tied to NHTSA campaign 25v-274. The vehicle is available for inspection upon request. The issue involves the risk of sudden loss of propulsion, which could result in a crash or injury to myself or others. This is a serious safety concern, and I do not feel safe operating the vehicle in its current condition. The defect has been acknowledged by GMC, but there is no remedy or repair currently available. I have contacted the selling dealership (rick hendrick Buick GMC, duluth, GA) repeatedly for the past three weeks with no returned calls. I also contacted GMC corporate, who confirmed the recall but refused a buyback or replacement because no repair has occurred — even though a fix does not exist. They offered a loyalty voucher that does not come close to addressing the safety risk or impact. The problem has not yet been inspected by a dealer or manufacturer because there is no repair action to take at this time. No police, insurance, or third-party has reviewed the vehicle. There were no warning lights or messages prior to the issue — the problem was revealed when I looked up the VIN and learned of the active recall on the engine. I am requesting NHTSA’s support to ensure general motors provides a replacement vehicle and compensation for this ongoing and unresolved safety hazard. I should not be placed in a position where I am expected to continue operating a vehicle with a known and dangerous defect that has no resolution in place.

My vehicle showing service safety restraint system and airbag light . When check with dealer code b14dc has appeared ( driver inboard seat side air bag high control).

Today while exiting an off ramp. I stopped for traffic signal. Truck immediately lost power and shifted to neutral. I placed my 4 ways 1. Put the people back in park restarted the ignition truck fired up. This is concerning as I've never had a vehicle with five thousand miles brand new shut off on me.

Onstar telematics module.

Vehicle went to gm for recall repairs on 02/24/25 the morning after when I cranked my car it was dead. Jumped the car off then began hearing a "clicking noise" gm advised I replace my serpentine belt as they noticed it needed replacement when doing the recall repairs. 02/26/25 serpentine belt was replaced but car still seemed to have power issues when cranking. 02/27/25 car barely cranked then while driving down the highway I lost all power and power steering to the vehicle. There was no warning, no check engine lights etc. The screen went black then car shut off then the screen said "press start to restart. " I was barely able to get the vehicle safely off the road with vehicles in front, behind, and in the other lanes. It could have caused a fatal accident. GMC still has my vehicle with no update on replacement engine timeline.

We were driving down the interstate at around 70mph and without warning - the vehicle shut off. The engine stopped running and the vehicle put itself in neutral. The headlights and electrical all shut off and the only message on the display was to push start to restart the vehicle. Luckily, we were able to safely maneuverer out of traffic without being hit by other vehicles. Our vehicle was able to be restarted once we came to a complete stop and put the car in park. We are having he vehicle towed to our local GMC dealer to have it evaluated. The issue only happened one time.

The engine of my 2024 GMC Yukon denali failed unexpectedly at 45 mph, shutting off without warning and shifting into neutral. My wife, three passengers, and two dogs were in the vehicle, which coasted to a stop. After several attempts, it restarted, and the check engine light illuminated. Alpine Buick GMC confirmed catastrophic engine failure, requiring replacement of the engine, radiator, hoses, and other parts. The vehicle remains at the dealership, and the failed components are available for inspection. This sudden shutdown posed serious safety concerns. My wife lost control over acceleration and power steering, increasing the risk of an accident. Had this occurred on a highway or in traffic, the consequences could have been severe. This raises concerns about the engine’s reliability and potential risks to other drivers. Alpine Buick GMC confirmed the engine failure and the need for full replacement. I am the sixth customer awaiting this repair, indicating a broader issue. The estimated wait time for an engine is two weeks to three months, creating a significant disruption. Inspection by manufacturer, police, or insurance the vehicle has been inspected by dealership technicians but not by GMC representatives, police, or insurance adjusters. I am open to further inspections to determine the cause and assess whether a recall or corrective action is necessary. No warning lights or symptoms appeared before the engine shut down. The check engine light illuminated only after restarting on the third attempt. The absence of prior alerts suggests a flaw in the vehicle’s diagnostic system. Expedited engine replacement – given the safety risks, I request priority replacement. Investigation into failure cause – GMC should assess whether this is a manufacturing defect. Review of similar cases – if widespread, a recall or service bulletin may be necessary. Better communication – regular updates on repairs and GMC’s actions are needed. I expect prompt action to resolve.

Engine failure (engine seizure) (connecting rod bearing failure). Enige failed on an interstate highway causing us to nearly be struck by traffic moving at a high rate of speed. Also, engine failed on an extremely cold (-17) degree minnesota night. This cause extreme concern/anxiety with children in the car as we waited for recovery. Yes, the problem has been confirmed by a GMC dealership in hudson WI. Yes, the vehicle component has been inspected by both GMC certified technicians as well as 3rd party warranty technicians. Zero warning lamps or messages prior to the failure.

The digital instrument cluster blacks out randomly at times going down the highway. This is a safety concern because you can't see how fast you are going. The problem has been inspected by and confirmed by a dealer service center. The failure began without warning and seemed to occur after the car went through a gm software update. The service manager for the GMC dealership said this is likely a bug that gm will have to solve through future updates. The car's electronic system was reset but the problem persists.

I purchased my new GMC Yukon xl in October 2024. In February, with about 9,000 miles on it, I was approaching a highway intersection and beginning to brake. My vehicle put itself into neutral, and then shut off -- while I was still moving. No dash lights came on, except for a message stating that I needed to press the brake and restart my vehicle. I took my vehicle into the dealership where I purchased it and they kept it for 8 days. They were unable to reproduce the issue and didn't do anything to mitigate the problem except for doing a "radio update" and adding lubricant to a window track. I was told I have to wait until it happens again and try to record it.

While driving the 370 miles from fairbanks to anchorage with our family and dogs, our vehicle shut down completely with no warning. The drive is through a very remote section of alaska. While passing a slower vehicle, our Yukon completely shut down, to include the all controls including the dash and lights. We were unable to complete the pass, leaving us in direct line with on coming traffic with no ability to speed up to get around the other vehicle. The other vehicle, not knowing we had lost all power, continued driving the same speed and eventually we were able to get back into the proper lane and coast to a stop on the side of the 2 lane highway. The vehicle would not start and with the temperatures outside at 12 degrees it got chilly fast. Luckily we travel with all of our winter gear. Had this incident happened on one of the many steep descents or curves with snow and ice, the outcome could have been disastrous. My wife has decided that if the vehicle does get fixed, she does not feel safe driving home in it. Reading online forums show that this is a very common occurrence and individuals are looking into a class action lawsuit against gm due to the safety issues associated with this. An individual passing by had a code reader and tried to reset the ecm but could not. I will include the report.