On September 17, 2026, at approximately 22,861 miles, the 6.2L L87 V8 engine in my 2024 GMC Yukon XL suffered a sudden loss of propulsion and was subsequently confirmed by an authorized GMC dealer to be seized and require complete replacement. I was entering northbound I-75 from the Mt. Paran Road entrance in Atlanta, GA with two of my children in the vehicle. This entrance has an extended acceleration ramp where vehicles accelerate to interstate merging speed. While accelerating, the engine briefly stuttered and then the vehicle stopped producing power when I pressed the accelerator. I was unable to continue accelerating and moved onto the limited shoulder. Other vehicles continued accelerating toward I-75 and passed immediately adjacent to us at significant speed. My children and I remained stranded there for approximately two hours waiting for a tow. The vehicle was towed to an authorized GMC dealer, which confirmed the engine is seized and requires complete replacement. The vehicle and failed engine are currently at the dealer and available for inspection. This vehicle was previously subject to NHTSA Recall 25V-274 / GM N252494000 for L87 engine failure and loss of propulsion. An authorized GMC dealer completed the recall procedure on November 3, 2025. The engine was not replaced; it passed the prescribed inspection and received the higher-viscosity-oil remedy. Despite completion of the recall procedure, the engine subsequently experienced the loss-of-propulsion condition identified by the recall. I understand NHTSA has investigated L87 engine failures occurring after completion of this recall remedy, including RQ26001 and EA26005. I am reporting this post-remedy failure because it may be relevant to that investigation.

Source: NHTSA complaint ODI #11765015 · view all complaints for this vehicle at nhtsa.gov

2024 GMC Yukon intermittently experiences complete loss of audio while driving. During the failure, all audio sources stop working, including radio/music and incoming hands-free telephone audio. During a phone call, the other party can hear me, but I cannot hear them through the vehicle. When this failure occurs, the audible turn-signal click/clack also does not work. In addition, the audible blind-spot warning does not sound. The visual indicators continue to function, but the associated audible warnings are lost. The condition is intermittent but persistent and can last 30+minutes. GM has issued a technical service bulletin addressing loss of audio together with loss of the turn-signal click/clack on 2023–2024 GMC Yukons. I am concerned that this is a safety-related defect because the audio-system failure results in the loss of audible driver warnings while the vehicle is being operated.

Source: NHTSA complaint ODI #11762972 · view all complaints for this vehicle at nhtsa.gov

On August 6, 2026, I was driving my family up to Whitefish Mountain Resort (a steep mountain road to a ski resort) for dinner when the ESC warning and "Brake System Failure" warning appeared. I immediately attempted to pull safely to the side of the road. When I pressed the brake pedal, the vehicle did not respond normally. I pushed the brake pedal as far down as I could and had essentially no braking ability. Because we were traveling uphill, the vehicle eventually rolled to a stop. When my brother came with his car he had a vehicle scanning tool. He hooked my vehicle up to it and the tool displayed diagnostic codes P25A2 and P3499. This was an extremely serious safety event. Had we been traveling downhill, approaching an intersection, or driving in heavier traffic, the outcome could have been catastrophic.

Source: NHTSA complaint ODI #11755972 · view all complaints for this vehicle at nhtsa.gov

While parked, my [XXX] daughter was in the third-row bench seat. The seat belt became wrapped around her body/neck area. The seat belt entered its 'Automatic Locking Retractor' (ALR) mode and continued to tighten as she moved, pinning her against the seat. The locking mechanism would not release, and the belt became so tight she was unable to breathe. We attempted to manually release the buckle and create slack, but the retractor remained locked and continued to tighten. After several minutes of unsuccessful attempts to free her, we had to use a cutting tool to sever the seat belt to save her life as she couldnt breath, she has brusing where the seat bealt was tighten. The vehicle was stationary in a parking lot at the time. The car has not being inspected , there was not warning. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Source: NHTSA complaint ODI #11713927 · view all complaints for this vehicle at nhtsa.gov

Check Engine and transmission alerts appeared in the app; vehicle showed “Check 4x4” while driving, cleared next day •Engine not sounding normal •Paint peeling •Fading plastic trim •Front bumper misaligned •Rear bumper misaligned •Loose front door frames •Marker lights collecting bugs •Plastic becoming loose at the rear hatch •Plastic near auto steps: one side has gaps, the other side fits properly •PPF (paint protection film) peeling •Taillights movable by hand •Fog lights movable by hand •Rear spoiler, hatch glass, and surrounding trim loose/movable •Cargo protector loose on exterior trunk sill •Cracking turn signal stalk •Rust developing within the first year •Finger can fit into gaps at door frames •Exhaust tips showing burnt discoloration •Significant loss of vehicle value: ~$70,000 down from $100,000 at purchase

Source: NHTSA complaint ODI #11690048 · view all complaints for this vehicle at nhtsa.gov