*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Electrical system
Second row door lock/unlock buttons do not function properly. The vehicle may be locked from this position but is unable to be unlocked. This allowed a small child in a car seat to lock themselves in the car but unable to unlock the vehicle using the corresponding button on the door. This is a serious issue which left the child trapped and required rescue from the fire department. This is a known issue for all GM/Chevy SUV from model year 25&26
Oct 18, 2026Unknown or other
On [XXX], at approximately [XXX] while driving my 2026 Chevrolet Suburban (VIN [XXX], approximately 2,795 miles) on [HIGHWAY NAME], the vehicle suddenly lost all power without warning. The check engine light came on, all the dashboard warning lights lit up, the 4WD indicator light came on, and the steering wheel wouldn't turn, making the vehicle very difficult to control at highway speed. The instrument cluster also displayed a "Service Transmission" warning and a "Lane Change Alert System Off" message. The myChevrolet mobile app simultaneously reported "Service Now: Engine and Transmission System" and "Antilock Braking System." I was able to bring the vehicle to a stop and shift into Park.…
Oct 2, 2026Unknown or other
I work at an express car wash and we have had 3 2026 GMC-Chevy vehicles that have had issues with their antenna covers. There has been proven no malfunction from the car wash, yet, antenna covers are being blown off by the blowers which is potentially air - such as driving down the interstate. Warrantyâs are not covering this issue for the customers. I can provide details such as pictures and video footage showing there was no malfunction to my wash, but possibly defective antenna covers.
Sep 27, 2026Lane departure › Blind spot detection
The drivers side blind zone light illuminates in the mirror when no objects/vehicles are present. The condition happens every time the vehicle is driven since it was purchased new in July 2026. The false alerts occur frequently when driving and render the left (drivers) side alerts completely unreliable and distracting/dangerous for the driver. The vehicle also vibrates the drivers seat when trying to make left-hand turns and lane changes because the blind zone sensor is incorrectly sensing an object is present when there is not. At highway speeds these false alerts are very distracting and unsafe for the driver. The vehicle has also on more than one occasion applied emergency (very abrupt)…
Jul 19, 2026EngineCrash
While exiting the highway my vehicle suddenly lost power and could not move. I could not put the vehicle in neutral. The engine had completely seized. As a result, my car got hit by a Semi-truck.
Aug 21, 2026Engine
While driving, suddenly began hearing loud knocking noise and lost most power. Was able to get vehicle off road, where it stopped, and had trouble starting again. Towed to dealer. Diagnosed issue as spun rod bearing.
Aug 10, 2026Engine and engine cooling
The contact owns a 2026 Chevrolet Suburban. The contact stated that while driving at an undisclosed speed, an abnormal knocking sound was heard coming from the engine compartment, and the check engine warning light illuminated. The vehicle was driven to the contact's residence and parked. While reversing out of the driveway the following day, the engine seized, and the vehicle stalled. The vehicle was towed to a local dealer, where the cause of the failure was not yet determined. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 14,800.
Aug 25, 2026 · 14,800 milesElectrical system
1) Both screens (driver display and infotainment) go black intermittently. Sometimes the infotainment comes back on, however, you cannot use all the buttons. The hard buttons under the screen for climate control (aside from the on/off ) wont work. The climate will automatically go to 76 degrees on Max Defrost. The rear climate will shut off when this happens. It also causes the radio controls on the back of the steering wheel to not work. 2) It is extremely dangerous to not have a visual indicator for the speed at which I am driving. It is also dangerous to be driving with no AC and instead 76 max defrost, in triple digit temperatures. Especially with small children and a newborn baby. 3)…
Mar 13, 2026
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.