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Power Train
06/03/2026
The failure involved the transmission valve body control valve within the automatic transmission system of the 2021 Chevrolet Suburban, a critical component responsible for regulating hydraulic pressure and controlling gear shifting. The malfunction caused erratic and unreliable shifting behavior, including hesitation, harsh engagement, and loss of proper acceleration; the failed component is in the custody of Northside Chevy in San Antonio, TX. This issue created a significant safety risk, as the unpredictable transmission response impacted the driver’s ability to accelerate when necessary (merging onto high traffic roads) and increased the likelihood of dangerous situations like rear-end collisions or loss of control. The problem was confirmed by an authorized Chevrolet dealer, where diagnostic testing identified faults in the transmission control system and verified the failure through performance testing and fault codes. The vehicle has been inspected by the dealership service de...
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Engine, fuel/propulsion System
05/31/2026
Vehicle stalled during routine driving. Code P129F. I was stranded in 95 degree weather with three small children. Please correct and advise ASAP. Had to be towed home. Vehicle inoperable.
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Power Train
06/05/2025
transmission failed high speed jerking shifting ruined a set of tires yes has been confirmed by dealer but our vin is not covered under the recall no yes error codes appeared before we took the vehicle in for service 6-5-2025 we have had the vehicle in to 2 separate dealerships a total of 4 times for repair now that powertrain warranty is expired they are calling for a transmission replacement
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Power Train
04/10/2026
Suburban started to have shudder at lower rpm on acceleration. I took it to the dealer and they confirmed the valve is bad. They are unsure at this time but depending on damage from the bad value my Suburban may also need a new torque convertor or transmission.
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Engine
01/13/2026
Had to replace entire engine for same reason other GM engines are recalled for, the lifters and shifting cylinders. This should also be covered under a recall! It left me and my kids stranded.
