2023 GMC Yukon XL complaints

On [XXX] while on vacation out of state with my family our 2023 GMC Yukon XL Denali stalled out on [XXX]. After safely navigating through 5 o'clock traffic just outside of Atlanta, the vehicle would not turn over or even attempt to start back up. We contacted onstar for assistance and was advised to stay with the vehicle while they dispatched a tow truck. After approximately 2 hours we contacted onstar again and was advised a tow truck wouldn't be available until morning. We then were able to obtain a ride with Lyft that totaled over $100 with 5 people and was given a $50 credit. I was forced to use Hilton Honors points to book a hotel. Then after the next morning around 10am I was advised the tow truck was enroute to the car. I then took an Uber to Enterprise where I was able to get a rental vehicle. And made my way to the dealership that our Yukon was towed to. After speaking with the service advisor I was told they wouldn't even have a diagnosis for a couple weeks. So we proceeded to head home (with the rental breaking down and several other issues we had to overcome). After we were able to get another rental vehicle, we made it home around 2am. We returned this rental vehicle as it was not suitable for our family, and contacted GM in hopes to get a rental vehicle while our $120k vehicle is sitting in the parking lot of a dealership 8 hours from our home. Only to be told they'd allow $44/day for a rental and we would need to rent it initially and they would reimburse us af

My engine stopped while I was driving. Unable to accelerate and the car will not start and is dead. Transmission light and DEF service lights came on. Luckily I was able to pull over to safety, barely. It was towed to the GMC dealership and waiting for it to be looked at. There were NO warning lights that came on previous to when this happened. This is a HUGE SAFETY concern for GM and it needs to be a recall because many, many others have reported the same complaints.

On [XXX] I was driving about 75mph on the freeway and suddenly the vehicle gear switched from drive to neutral. The vehicle dashboard read "vehicle condition not safe for shift" I tried to put the car back in drive by pushing the drive button but the vehicle was stuck in neutral. I pressed on the gas but it was not working since the car was in neutral. Since I could not use the gas to move forward, I could not go up on the ramp and was stuck on the busy freeway between the off ramp and the busy lanes of cars going 70+. The right rear end of my vehicle was in the offramp lane. I started to panic because I had my [XXX] daughter in the car. The steering wheel was completely locked and the rear axel was locked as well. There was no warning before the engine cut off. The electrical was all still working. I called AAA for a tow and 911 for CHP assistance since I was in dangerous spot. Took it to GMC Carlsbad Service, advisor Jason just called me and told me the engine had seized up and will most likely need the engine replaced. On 1/9/25 I had the car oil changed at the GMC service department in Escondido where I purchased the car. The vehicle has an open ticket and GMC is conducting a full investigation. I am told the whole engine will need to be replaced and will take 4 weeks from 1/22/25 to fix. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2023 GMC Yukon. The contact stated while the vehicle was parked, the vehicle shuddered. The "Service Traction Control" and the "Forward Collision System Unavailable" message was displayed on the instrument panel. The check engine warning light was illuminated. The failure occurred on several different occasions. The vehicle was taken to a dealer where it was diagnosed that the fuel injector needed to be replaced. The vehicle was repaired however, over time the failure still persisted. The vehicle was taken back to the dealer where it was diagnosed once again that the fuel injector needed to be replaced. The vehicle was repaired however, over time the failure still persisted. The vehicle was taken back to the dealer for the last time where it was diagnosed once again that the fuel injector needed to be replaced. The vehicle was repaired however, over time the failure still persisted. The manufacturer was notified of the failure. The failure mileage was unknown.

The vehicle stopped, and I was unable to manually put it in Neutral. I had it towed to the dealership and was told that my engine was froze up. I have 25,000 miles on my Denali. This is not normal. My truck just "stopped" and would not move on a busy traffic road- why are the vehicles failing at less than 30,000 miles? I still owe quite a bit and now wondering what is going on with GM? I saw the video on Tik Tok about engine failures and this is my truck.

I purchased a 2023 Yukon Denali Ultimate new in December 2023. It has 25,000 miles on it. Last week my wife was driving on the interstate and the vehicle abruptly shut down leaving her stranded on a narrow shoulder on a bridge. After it was towed to the dealer, the diagnosis was a connecting rod failure requiring an engine replacement. It was in the shop 2 weeks prior because the vehicle shifted into neutral on its own while driving at 60 mph on the highway, but the dealer found nothing wrong

The 2023 Yukon XL shut down while traveling at a speed of 70+ MPH.

Hi my 2023 GMC Yukon Denali Ultimate died in the middle of the road due to a catastrophic engine failure. That put my family and I in danger on the highway.

ENGINE REPLACED

As we were driving down a main road and taking off from a stop light on NW Expressway we had no warning before the car seemed to die and shift itself to N. It said to press the start button, that did nothing and the car would not power back up besides the lights and dash that were still working. We coasted to a stop in a neighborhood entrance. I'm so thankful I was not on the highway during rush hour traffic. Once stopped, we put it in park and tried to start it. A friend came and tried to jump it and still nothing. The dealership has confirmed it needs a full engine replacement. GM has agreed to help with cost but my car has sat inoperable for over 30 days as the engine is on back order with no ETA. It has a 6.2L engine and I had taken it in for pull consumption tests over the past 2 years. The dealerships were unable to duplicate the problem. Two days prior to the failure I had told my husband it was slow to crank and we needed to have the battery checked. I now believe it was the engine, not the battery. There were no warning lights on and my battery indicter showed to be in the middle (not lacking charge). I am aware of a voluntary customer satisfaction program that GM has issued but they have told me my VIN isn't one of the 5000 affected by this. In visiting with the dealership it appears they will not fully break down my engine until the new one has arrived but they are 90% sure of the cause as they've "seen several of these". This could have been catastrophic to have a

During the operation of my 2023 GMC Yukon XL AT4 on [XXX], carbon monoxide (CO) entered the cabin, exposing my children and me to dangerously high levels of CO and causing confirmed carbon monoxide poisoning. We were driving with the engine running and the heater on for approximately 21 minutes when the exposure occurred. Symptoms began to escalate that day and into the proceeding days, including severe headache, stomachache, pallor, chest pressure, shortness of breath, fatigue, and neurological issues. My children, particularly my [XXX] and [XXX] , experienced the most severe effects— both were very ill especially my [XXX] . Unfortunately, we initially did not believe it was possible for CO to enter the vehicle cabin, which delayed early intervention and appropriate medical care. Blood testing 4 days later confirmed elevated carboxyhemoglobin levels in my [XXX] , the only one tested. During the incident, the battery warning light was the first indication of trouble, but soon after, many additional error messages began flashing on the dashboard. The vehicle then overheated, decelerated, and eventually shut down while driving. We were in the vehicle under 21 minutes. Upon inspection after the incident, my husband noted a severed belt and potential pulley issues. The exact cause of the CO intrusion has not yet been identified. The vehicle is available for inspection and unaltered to preserve evidence. I am writing GMC and requesting further investigation by GMC. This incident r

The contact owns a 2023 GMC Yukon XL. The contact stated that while driving 75 MPH coming to an intersection and attempting to apply the brakes, the vehicle failed to stop as needed. The message brake system failure and speed limited to 62 MPH were displayed on the instrument panel. The vehicle continued and drove through the intersection. The parking brake failed to stop the vehicle. The vehicle ended up stopping in a ditch and was towed to the dealer to be diagnosed. The contact was informed that the battery terminal had detached, causing 20 different modules to fail. The battery cable was tightened. The manufacturer was made aware of the failure and opened a case for a possible buyback. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was 25,100.

Complete engine failure while operating the vehicle with our children riding along as passengers. The engine failure nearly caused us to wreck. 2023 GMC Yukon XL Denali with only 15,000 miles. And now, I am being told that I need a complete engine replacement and that GMC is well aware of these engine failures and the product defects, yet GMC has refused to issue a recall. To add insult to injury, I’m being told by dealership that it may take several months to get a new engine! We will be pursuing legal action.

Driving in my newer GM Yukon Ultimate at 13k miles on the freeway. Vehicle with no warning shuts down while going 60mph in the middle lane. Was able to safely steer the car to the side of the road to avoid a collision. Vehicle lost all electrical contact. could not shift into neutral to tow. Turns out vehicle engine had to be replaced. GM approved a new engine replacement and are planning to return the vehicle back to put on the road. The vehicle is unsafe, at 5k miles, 6 months prior, the vehicle had to have the steering system replaced due to failure as well. Online research shows that others are having the same issue with failed engines on these GM vehicles and models.

At approximately 9,000 miles the engine started knocking. I took it to the dealer today and they called to confirm the engine and radiator needed to be replaced as there are metal shavings in the oil. I'm not sure if it is the 6.2L engine lifter issue or if this is something different, nonetheless, engine issues for GMC seem to be systemic based on quick research and seeing posts in forums and social media.

Engine shut off at freeway speeds (65mph) on 2 occasions. Driver was able to coast over to side of freeway both times. On 1st occasion CHP protected vehicle from other traffic on i-5 with safety lights and traffic control. On second occasion, tow truck came quickly and kids were evacuated to prevent heat stroke in 113 degree weather. The first incident was “repaired” with a new starter and battery fuse block at 21720mi, but only lasted to 21814mi before same event occurred. No warning of failure before or after incident, just a dead engine. Second event (7/2/2024) is still being investigated by dealership.

Driving at 70 mph, the vehicle shifted into neutral without warning. When attempting to place the vehicle back into drive, the vehicle dashboard Siad "vehicle condition not met" . I slowed the car and pulled over. It shifted into park but now will not start and will not go into neutral for towing.

The contact owns a 2023 GMC Yukon XL. The contact stated while driving 86 MPH in the middle lane, the vehicle shut off on five occasions. The vehicle was restarted, the steering column was locked, and the brake pedal was depressed but failed to respond. The contact stated that the rear axle had disengaged. The suspension leveling system had failed. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it was diagnosed that there was an electrical failure. The vehicle was not repaired. The manufacturer was contacted, but no assistance was provided. The failure mileage was 39,000.

Windshield wipers periodically fail to operate when turned on. This is but extremely dangerous because it's been impossible to determine what the cause is. When the wipers stop working, I adjust the speed from the intermittent settings to LO and HI and there is no change. I can turn the RainSense setting to OFF and there is no change. The wipers stop working and then after a few minutes, will turn back on. I have taken the vehicle to the multiple GMC dealers for service and they cannot diagnose the problem because it only occurs periodically. They refuse to change parts in an attempt to fix it. I have called GMC Customer Care and their response is "take it to another dealer". I have showed the videos I have captured of this dangerous situation and the dealers don't care. I have the videos and can share (but this site doesn't allow upload of videos). This is extremely dangerous. The wipers have cut out at highway speed in torrential downpour multiple times.

Urgent Appeal for Investigation into Braking Capacity Discrepancy Dear National Highway Traffic Safety Administration (NHTSA),I am reaching out to bring a critical matter to your attention regarding the braking capacity of my diesel vehicle, which has not been adequately addressed despite multiple notifications to the service center.The primary concern I wish to highlight is the inadequate braking capacity of my diesel vehicle, which poses a significant safety risk. This concern is especially troubling when compared to my similar gas-fueled vehicle from the same manufacturer, which exhibits notably superior braking performance. After discussing this matter with the service center, their response was that the braking performance is considered normal for my diesel vehicle. However, the evident disparity in braking effectiveness between my diesel vehicle and the gas-fueled one suggests otherwise. This difference is particularly concerning given that both vehicles utilize the same brake system, despite the diesel vehicle's higher weight. In light of these circumstances, I urgently request NHTSA's intervention to investigate this matter promptly. The inadequate braking capacity of my diesel vehicle presents a tangible risk to road safety, affecting not only myself but potentially all drivers on the road.It is crucial that corrective measures are taken swiftly to address this issue and ensure the safety of all drivers. Your prompt attention to this matter is greatly appreciated.Tha

Riders with long hair is getting caught in the "DENALI" emblem embedded in the seat back of the front seats. This has been addressed with a GMC dealer and they stated the seat emblem is within specs as they put it. This is noted on the attached work order regarding this

When driving in a parking lot, due to the design of the cruise control set switch, it is very easy to unintentionally set the adaptive cruise control. Specifically, when maneuvering in a parking lot at low speeds (below 5mph) and allowing the wheel to return to center by spinning in your hands, the cruise control switch which is a dial/lever that sticks out beyond the surface of the wheel, catches on your hand and engages the cruise. This sets the cruise control target speed to a 15 MPH even if you are currently going slower than that. The vehicle then accelerates on its own at a fairly aggressive pace to get up to 15mph. You can of course hit the brakes and cancel the cruise control, but in a tight parking lot scenario this unintended acceleration could easily cause you to strike another vehicle, obstacle, or pedestrian. The cruise control on this vehicle is enabled by default on start up and the single action of hitting the set switch/dial engages the cruise and accelerates sharply even if you had not previously used cruise in that ignition cycle. This seems like a stupid design and dangerous, and would be very easy to fix with a software update to not let the cruise become enabled below 15mph. We did not have the dealer investigate because this appears to be the normal operation of the cruise control system. There were no unusual warning lamps. This has happened several times and also has happened to my wife while driving.

I was driving on Highway 78 from Alabama to Mississippi, when all of a sudden we heard a loud explosion type noise. My husband looked up at the panoramic sunroof, and there was a large hole, along with shattered glass. We looked in the SUV, and there were no objects to be found that could have broken the sunroof. It appears the sunroof spontaneously exploded.

I recently purchased my vehicle and after already transporting my family of 5, including my newborn child for several days, I noticed that my parking sensors were not working and I began receiving a message of my dash that parking assist, rear braking and auto park assist were unavailable. I reached out to GM around 4/4 informing them of the issue and they said they didn't have any recalls or retrofits for my vehicle and advised me to take it to a dealer's service deparment to be reviewed. After having an issue with Simpson GMC of Buena Park of failing to even review my issue for a week, I took it to Penske GMC of Cerritos on 4/17 and they determined that during manufacturing of the vehicle, someone failed to connect the module that controls my parking sensors. They had to remove the front fascia of my vehicle to connect the module for everything to work correctly. This has forced me to call into question the quality control of GM vehicles and also concerns me that a car manufacturer would deliver a vehicle with such gross negligence where a consumer would not know the safety features they rely on to keep themselves and their family safe do not work. GM Customer Service also never followed up on my issue even after calling and emailing them several times, which again calls into question how General Motors operates their business.

The contact owns a 2023 GMC Yukon XL. The contact stated that after starting the vehicle, the "Service SRS” message was illuminated. The vehicle was taken to a local dealer, where it was diagnosed that there was a failure with the passenger safety restraint system; however, the remedy for the repair was not yet available. The contact stated that the vehicle was not repaired, and that the safety restraint system was reset. The manufacturer was made aware of the failure, and a case was opened. The approximate failure mileage was 1,100.

While driving in a gravel driveway, the window curtain airbags and the middle console airbags deployed, with no collision what so ever causing injury to the driver and should you have a child this could have been very damaging as the airbags came out in all the way back through the vehicle. This incident was inspected by police and fire as OnStar called them as it detected a collision, and without the vehicle being moved from the location the officer said there is nothing that should have caused the airbags to deploy, there is absolutely nothing here in this driveway that could have possible caused airbag deployment, The running boards go in and out, even when on the interstate constantly, and when backing up or going forward at times, and especially in a gravel driveway your automatic breaks will stop you abruptly, so fast that your seat belt will lock up on your and thrust you forward and backwards. The rear entertainment system will screen at times when turning it on will stay black and you have to keep turning it on and off to get a screen to show. No warning lamps or messaging with any of these cases.