2023 GMC Yukon Xl Problems

This is an ongoing problem from date of purchase, before the normal oil change time the low oil light comes on. When i check the oil dip stick it is in fact low. I have to add at least 2 qts of oil to get it to the right level. Time frame would be at least once every 2 months under normal CA driving conditions. Also does have a rough idle and noise that sounds like the motor is going to come apart on startup. I have takin it to the dealer, they performed consumption test and checked the motor recall. The dealer told us that our motor passed the recall inspection, made the changes, oil, oil cap, etc. Then told us it passed the consumption test. Since then I still have to add oil between oil changes. We were told by the service tech that even if the motor is bad, there is no replacements at this time and the vehicle would just sit at our dealership until we can get a replacement. No one has been hurt at this time. I'm just waiting for the motor to lock up. The vehicle can be inspected upon request. The only warning light that comes on is the low engine oil warning.

I had the recall remedy of the v8 completed. They said it only required thicker oil which now lowers fuel economy and costs more for oil changes. After the recall, the engine still makes a knocking sound

As I was driving on the highway the engine stopped without warning. I was able to safely maneuver the vehicle to the shoulder, but it took me a minute to figure out what happened. There were no engine warning lights in advance of the failure. It was concerning because I was traveling home alone with my 2 dogs and it was very hot. The vehicle had a prior Safety Recall performed regarding this issue, but the engine failed anyway. GM did replace the engine under warranty, but I am hearing that replacement engines are also failing, and I am worried this engine will fail outside the current warranty.

Vehicle passed previous recall for engine defect related to complete engine failure, GM switched oil viscosity. Recall performed 10-16-25. Complete engine failure diagnosed at dealer 9-4-26, related to exact malfunction that sparked recall.

I was Driving down the interstate when the RPMS on my car increased and my car started to shutter. I went to get off the roadway and it put itself into neutral and lowered my speed. when i got On the shoulder it stalled and would not turn back on. I had To be towed. To this point, my car has been in the shop for over a week with no solution.

Engine shut off with no warning, all electronics disabled and couldn't shift out of park. Was driving down the road at approximately 50mph, Yukon shifted itself into neutral. Vehicle previously complied with the 25V-274 recall and passed, was operating on the new oil that GM recommended.

Vehicle passed previous recall for engine defect related to complete engine failure, GM switched oil viscosity. Recall performed 10-16-25. Complete engine failure diagnosed at dealer 9-4-26, related to exact malfunction that sparked recall.

Our lifters in cylinder 3 were replaced after failing at 40,000 miles. The exact same lifters broke again at 77,000 miles.both events caused engine failure.

On August 17th, 2026 while approaching a nature preserve entrance at approximately 1 mph, my 2023 GMC Yukon Denali Ultimate suddenly accelerated on its own, without the driver pressing the accelerator pedal, striking a split-rail fence and a tree. Airbags did not deploy. The front collision system didn't issue any alerts about the fence and tree. A GM software update had been installed a couple of days before this incident . In the weeks prior, the vehicle had also intermittently failed to hold side mirror position and periodically failed to deploy the power running boards. I request that GM and NHTSA investigate a possible link between the recent software update and an unintended acceleration event, potentially related to the adaptive cruise control or another driver-assist/body control module.

On my 2023 GMC Yukon, XL the infotainment screen freezes and you have no access to any vehicle information, including rearview camera. This issue appeared three months after I purchased a vehicle in 2023 and was taken to the dealership confirmed the issue, but said the resolution was to do a hard reset on the infotainment center. After driving the car for three years and taking the advice of the dealership and resetting the infotainment center every few weeks, the problem escalated and started freezing up at least once a week to eventually doing it every day and the heart reset wouldn’t always work the first time. Dealership eventually confirmed it was a defective radio module. This is a very large vehicle and the rearview camera is an essential necessity to avoid collision.

I got into my car to run some errands. As I drove away from my house, I made a left turn downhill. I noticed vehicles ahead, so I began to slow down. At that moment, I was driving between 20 and 25 mph. When I tried to brake, my brakes failed and started flashing a brake failure warning light. I kept pumping the brake pedal, and eventually, the car slowed down and came to a stop. I turned on my hazard lights, and immediately returned home. My nephew and I were both in the car. Our live flashed in front of us. Thankfully, there were no vehicles directly in front of me or pedestrians. This could have turned out to be the worst day of my life if anyone had been injured.

2023 Yukon Denali XL 6.2l: GM oil change recall performed (October 2025) and GMC dealership noted no issues. Prior to recall oil change, at aprox 5k miles interval (45K total miles), check engine oil light on dash and was over 1 quart low. Next oil change at aprox 50K miles, no check engine light came on, but certified mechanic drained and measure oil level, 1.5 quarts low. Engine often sounds odd at cold start, ticking sound. Now an oil change is $100 more, due to special oil, but not compensated for extra cost. Brake calibers failed. February 2026, engine light on, then off, then hood latch dash light warning now on and off. Huge safety concerns with the 2023 GMC Yukon 6.2L.

While driving in heavy rain, the wipers failed and stopped working. Turning on and off the car did not re-set or help the wipers to work. Hugely dangerous. Dealership trying to charge me a huge sum to fix what should be a working component of the car that is 2 years old. Recall this immediately! Dealership wants almost $500 total and made me put $200 down before any work is done!

On September 17, 2026, and again on September 20, 2026 (three separate occurrences the same day), while operating my 2023 GMC Yukon XL in rain, the windshield wipers momentarily stopped functioning while set to Auto/Intermittent mode. On both dates the automatic headlights were active (ambient temperature in the low-to-mid 80s°F), and the headlights simultaneously flickered/dropped out during the wiper interruption. This is not an isolated event; it has recurred on multiple occasions under similar conditions (active rain, wipers in Auto or Intermittent mode). Loss of both wiper function and headlight illumination at the same moment, during active rainfall, creates an immediate visibility and safety hazard. GM has issued Technical Service Bulletin #23-NA-149 acknowledging intermittent windshield wiper failures on this vehicle platform, but has not provided a confirmed root-cause repair, and no safety recall has been issued for this condition.

My vehicle stalled while driving on a busy highway & I had no option but to pull over, which left me & my family in a very dangerous position. Had to remove my daughter's wheelchair onto a tow truck as the vehicle had no power to use the hoist for her powerchair. Again, on the side of a busy road! Towed the vehicle to a GM dealership, who stated there was catastrophic engine failure & the engine had to be replaced. Had no way to transport my daughter until I got a new engine since her hoist was stuck at the dealership. This was our original vehicle, until the sold me another one with the same defect (2024 Yukon for MORE money!). That vehicle was reported in Complaint 11657786.

My wife was travelling down a two-lane road at 50mph when the engine suddenly shut off affecting steering. She was able to maneuver to the shoulder, but the vehicle would not restart. Could have been much worse. Had it towed to the dealer we purchased it from, and they informed us the engine had seized. There were no warning signs or dash lights indicating there may be an issue.

1.The driver side mirror tilts up or down every time the vehicle is started requiring readjustment before driving. My wife was almost hit by oncoming traffic when she did not remember to readjust the mirror before merging with traffic. 2. The driver seat bolster inflates every time the vehicle is started. The vehicle cannot be driven without deflating the bolster. These have been reported to the dealer 3 months ago with no resolution from them or GMC.

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

There have been several issues for which I had to take my vehicle to the dealer. I did the engine oil recall. Then 4 months later my engine was destroyed. I’ve had several issues with oil leaks. I had an issue with my running boards a few times. And I’ve had an ongoing issue that the dealer hasn’t been able to fix - a water leak (I believe stemming from the moonroof), water gets into my vehicle, on my floorboard, and behind the dash. I’ve called to record these incidents with the dealer and taken it in several times, but they are never able to duplicate it, but they have witnessed the water leakage after the incidents (which happens during heavy downpours, and isn’t all the time because my vehicle is in the garage when I’m not at work).

Sunroof exploded

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.

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.

Classic Buick GMC (Classic Elite Buick GMC – Katy) Filed by: [XXX] [XXX] [XXX] Phone: [XXX] Email: [XXX] Date: November 23, 2025 Texas Attorney General – Consumer Protection Division RE: SUMMARY COMPLAINT – Vehicle Misrepresentation, Unauthorized Charges, Financing Fraud & Warranty Violations Dear Attorney General, I am filing this complaint against Classic Buick GMC (Classic Elite Buick GMC) located at [XXX] , for multiple violations of Texas consumer-protection laws during the sale and follow-up service of a vehicle I purchased in March 2024. Summary of Violations 1. Misrepresentation of Vehicle Model Year I was sold a 2023 GMC Yukon Denali that the dealership falsely represented as a brand-new 2024 model, including on the key-tag. This violates Texas Occupations Code §2301.351(a) and DTPA §17.46(b)(5), (7), (24). 2. Unauthorized Add-Ons & Hidden Charges The dealership added $8,000 in accessories and $26,000 in warranty products without my consent. This violates DTPA §17.46(b)(12). 3. Financing Fraud I was promised 1% financing, but the dealership charged a significantly higher rate at closing without disclosure. This violates the Truth in Lending Act (TILA). 4. Warranty Refusal & Pre-Existing Damage Although the vehicle had defects and mechanical issues at delivery, the dealership refused to repair them under warranty unless I paid. This violates the Magnuson-Moss Warranty Act. 5. Failure to Provide Required Documentation The dealership refused to provide complete purchase documents, violating Texas Administrative Code §215.142. 6. Pattern of Evasion I personally visited the dealership three times, yet management refused to correct any misconduct. 7. Unsafe Vehicle Retained at Dealership The Yukon remains at the dealership due to mechanical/electrical defects. I refused to pick it up because the vehicle is unsafe and not as represented. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

OnStar module doesn’t work it went out in January 2025 there’s a 1000’s of other users in the in the OnStar module community complaining of the same issues . When you take it to the dealership they will not assist and will not warranty it out

Vehicle shifted into neutral while driving down the highway, extremely dangerous. Would not shift into gear and could not accelerate. Was able to pull over and the vehicle would not restart. Had to have the vehicle towed to a dealership. Dealership found a blown fuse, problem happened again twice and the dealer could not find the problem. This was July 28th, 2026. On August 20th, while in cruise control, slight ringing noise began, then a loud thump, then a loss of oil pressure. Unable to do anything other than pull over on an interstate with my family. Again, very dangerous. The vehicle would not restart and could not be shifted out of park. Had to have the vehicle towed again. Have also had at least 8 recalls on the vehicle. Unbelievably dangerous situations with my family, aside from inconvenient and expensive.

My 2023 GMC Yukon Denali XL, used as a commercial vehicle for my business, experienced sudden and complete engine failure at approximately 70,000 miles with no prior warning. No check engine light, no unusual noise, and no other symptoms. The vehicle had previously been inspected/serviced under GM Safety Recall 25V-274 (L87 Engine Loss of Propulsion) and had been deemed safe prior to this failure. The failure occurred while driving on a two-lane road in Durango, CO. The vehicle lost all propulsion and came to a stop in the roadway, blocking the lane of travel and forcing other vehicles to cross into the oncoming traffic lane to go around the disabled vehicle. This created a serious and immediate hazard to myself and to oncoming traffic. The vehicle was not driveable and had to be towed. The dealer confirmed catastrophic engine failure requiring a complete engine replacement. After the engine replacement, the Morehart Murphy GMC dealership in Durango also failed to properly recalibrate vehicle sensors. They did not reinstall certain suspension components that had been removed for the engine replacement, requiring multiple additional dealership visits to resolve along with recalibration of the air ride suspension. After the replacement I was getting messages that the vehicle was "too low to drive with caution" and "Reduced Acceleration Drive With Care." This vehicle failure occurred during our peak season (June 10-July 2). The vehicle being out of service, I was required to rent a replacement vehicle at my own expense because GM did not provide a loaner vehicle. I estimate loss revenue at $1k/day. When I attempted to raise this issue with GM directly, their response was to submit letter to a P.O. Box, with no other means of resolution or contact offered. Given that this vehicle had already undergone the recall remedy and was represented as safe, this incident is relevant to NHTSA's ongoing investigation into post-recall L87 engine failures (Recall Query RQ26001).

On September 17, 2026, and again on September 20, 2026 (three separate occurrences the same day), while operating my 2023 GMC Yukon XL in rain, the windshield wipers momentarily stopped functioning while set to Auto/Intermittent mode. On both dates the automatic headlights were active (ambient temperature in the low-to-mid 80s°F), and the headlights simultaneously flickered/dropped out during the wiper interruption. This is not an isolated event; it has recurred on multiple occasions under similar conditions (active rain, wipers in Auto or Intermittent mode). Loss of both wiper function and headlight illumination at the same moment, during active rainfall, creates an immediate visibility and safety hazard. GM has issued Technical Service Bulletin #23-NA-149 acknowledging intermittent windshield wiper failures on this vehicle platform, but has not provided a confirmed root-cause repair, and no safety recall has been issued for this condition.

The contact owns 3 Nuna Rava Car Seats. The first car seat Model Type: Convertible, Model Number: CS05103CVR, Manufactured Date: April 16, 2019. The second car seat Model Type: Convertible, Model Number: CS05103CVR, Manufactured Date: May 6, 2021. The third car seat Model Type: Convertible, Model Number: CS05103CVR, Manufactured Date: June 17, 2019. The contact received notifications of NHTSA Campaign Numbers: 24C002000 (Child Seat); however, the parts to do the recall repair were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure with the car seats.