Warnings problems of the 2025 GMC Yukon

Purchased new August 29, 2025 on 12/3/25- mileage 4495. Took vehicle in for first maintenance service. Tire rotation and oil change. On 1/7/26- reported grinding noise we had began noticing when starting vehicle. Engine light service esc. Service traction control. Reported to ben mynatt gm. On 1/8/26 mileage 7120- took Yukon in for service due to grinding noise. Due for 6 module updates and 3 stand alone updates. On 2/16/26 noticed ticking noise when heat in on high. Scheduled service for 2/26. On 2/24/26 smell from car, oil reporting low. Dip stick completely dry. Sent email and photos to ben mynatt service. On 2/26/26 took vehicle in for service. Service advised to start oil consumption test. Ordered blower motor for the squealing noise. Cyl 3 misfire. Was told by the dealer, possibly needs engine 2/27/26 took vehicle in for service check engine light on. Bearing inside blower motor and blower motor replaced. Replaced coil cyl 3 tire rotation 2/28/26 car shaking, smoking, engine light on. Terrible smell from exhaust. Engine light came on, service esc, service traction control, forward collision unavailable, reduced acceleration drive with care alert. GMC alert: service the engine and transmission system immediately alert, engine light on. Vehicle approx miles. Codes misfires to cylinder 3. Took vehicle right to service dept. Codes cleared. Replaced coil on cyl 3 March 7th - mileage 11,200 car shaking vigorously! engine light flashing. Loud knocking coming from vehicle. GMC alert: service the engine and transmission system immediately alert. Emission system- service now. Engine and transmission system service now. Service antilock braking, stabilitrack stability control systems and airbag system. Service air bag system. Emailed to service March 9th. Took vehicle in. Cylinder 3 & 8 misfire code cold start rough idle code. Oil consumption using approx1 qt of oil/500 miles. Vehicle unsafe risk of engine seizure, fire risk and loss of acceleration is extreme danger.

On August 9th at 5:30pm roughly, while attempting to park using the vehicle’s park assist feature, the system failed to function properly—specifically, it failed to detect a pole at the rear of a parking space, did not slow or brake the vehicle, and was not even aware it would contact the pole. It then collided with the pole. Also, intermittently the forward collision alert system either does not alert for similar circumstances as it just previously did. Seem untrustworthy. Scary. Gm's product allegation team (pac) had all of the necessary information to show the system does not work 100% of the time (I have it all on video and submitted that) and they denied my claim and refused to admit a system failure even when given the videos showing the park assist failing to engage properly on video.