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Power Train
04/29/2026
The transmission of the 2021 Suburban failed. While operating the vehicle down a state highway, out of nowhere the power was reduced significantly while in traffic. It would not go over 30 MPH after forcing itself to 30 MPH while driving down the busy highway. After struggling to find a safe place to park, the vehicle would not, and still will not, go into reverse. There were no warning lights of any sort prior to this incident. Now there are several warning lights. The vehicle has been towed and taken to a repair shop with current unknown diagnostics as we are waiting our turn for the vehicle to be diagnosed. This vehicle has a transmission that is currently under Class Action for GM knowingly selling defective transmissions.
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Power Train
04/22/2026
The contact owns a 2021 Chevrolet Suburban. The contact stated that while driving at an undisclosed speed, the vehicle jerked abnormally while shifting into reverse(R) or drive(D). The contact stated that the vehicle lost motive power with the check engine warning light illuminated. The contact was able to restart the vehicle; however, the failure persisted while attempting to drive. The contact also stated that the vehicle was put into LIMP Mode several times. The dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 78,000.
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Fuel/propulsion System
08/08/2025
My 2021 Chevrolet Suburban experienced a sudden no start condition which required the vehicle to be towed for repair. A diagnostic inspection determined that both the fuel pump and the fuel pump control module had failed. I paid out of pocket for the full repair, including replacement of both components. Several months later, GM issued a safety recall for the fuel pump control module on this vehicle. I submitted a reimbursement request to GM. GM agreed to reimburse only the control module , but refused to reimburse the fuel pump, even though the pump failure was directly caused by the defective module that is now under recall. Federal recall reimbursement guidelines require manufacturers to reimburse the full cost of the remedy for the defect. In this case, the defective module caused the fuel pump to fail, making the pump replacement part of the necessary remedy. GM’s refusal to reimburse the full repair cost leaves me paying for damage caused by the recalled component. I am request...
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Forward Collision Avoidance, lane Departure
03/31/2026
Lane departure assist, adaptive cruise control, auto emergency braking, adaptive high beam, forward collision warning system became unresponsive while driving on highway during trip. Had to take vehicle into GM dealership for ADAS camera replacement.
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Electrical System
03/23/2026
Had an engine replacement in dec of 2025 and had to pay for it since wasn’t under warranty or recall. And now my replacement engine which has a warranty now. Just failed in March 2026 which about 3 months later. Had metal shavings in engine and multiple cylinders misfiring. And now I don’t have a family vehicle to drive my family around again. There should’ve been a recall on my engine, but wasn’t this is not fair. And I’m paying the price for it.
