Has 3600 miles and engine suddenly lost power and had back knocking/squealing noise and check engine light started flashing.
2026 GMC Yukon: sudden loss of power
7 of the 49 complaints about the 2026 GMC Yukon describe sudden loss of power.
- owner complaints
- 7
- of this car's complaints
- 14%
- recalls
- 0
Is there a fix? 2 service bulletins cover this area of the car. See below
Sudden loss of power by model year
What owners say
Engine Failure. While driving on the highway at a speed of approximately 70 mph the engine made a noise and the vehicle lost power. The safety factor is that i was on the highway with trucks and busses in which i had to coast the vehicle to the shoulder of the road and call for police assistance. No warning lamps. Vehicle was towed and inspected by the dealer in which i was informed that the engine bearings had locked up. The vehicle needed a new engine.
The engine issue was caused by a misfire in cylinder #5, which resulted in white smoke coming from the vehicle’s exhaust. While driving on the highway, the vehicle lost power and would not accelerate properly, creating a serious safety hazard due to the inability to maintain speed and safely respond to traffic conditions.
The engine issue was caused by a misfire in cylinder #5, which resulted in white smoke coming from the vehicle’s exhaust. While driving on the highway, the vehicle lost power and would not accelerate properly, creating a serious safety hazard due to the inability to maintain speed and safely respond to traffic conditions.
The engine issue was caused by a misfire in cylinder #5, which resulted in white smoke coming from the vehicle’s exhaust. While driving on the highway, the vehicle lost power and would not accelerate properly, creating a serious safety hazard due to the inability to maintain speed and safely respond to traffic conditions.
vehicle lost power on highway with my sons family in the car. Vehicle was towed to dealer from which it was purchased . outcome was the motor failed and a remedy could be months out with gm only offering a 35/a day rental from enterprise which no vehicle that compares can be rented at that cost.
Motor blown up, truck shut off while driving. Loss of all power.
Service bulletins that may apply
Related recalls
No recalls on record for this model year.
Questions about the 2026 GMC Yukon loss of power
Is sudden loss of power a common problem on the 2026 GMC Yukon?
7 of 49 owner complaints about the 2026 GMC Yukon (14%) mention sudden loss of power. The model year with the most reports is 2021.
Is there a recall or service bulletin for this on the 2026 GMC Yukon?
There are 0 recalls and 2 service bulletins for the same area of the car. Check them below with your VIN.
Other symptoms on the 2026 GMC Yukon
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