general problems of the 2021 Chevrolet Suburban

The contact owns a 2021 Chevrolet Suburban. The contact stated that the check engine warning light was illuminated. The vehicle was taken to an independent mechanic, where the map sensor was replaced; however, the failure persisted. Additionally, the vehicle failed to start. The vehicle was towed to another mechanic, where it was diagnosed and determined that the fuel pump sensor module had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the VIN was not included in a recall. The contact was referred to the NHTSA hotline for assistance. The failure mileage was approximately 62,000.

The contact owns a 2021 Chevrolet Suburban. The contact stated that while driving 45 mph, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended, and the vehicle decelerated unintendedly. Additionally, the vehicle failed to exceed 42 mph. Later in the day, the gear shifter was shifted to reverse; however, the vehicle failed to reverse as intended. The vehicle was taken to the dealer, where it was diagnosed with transmission valve body failure. The contact was informed that the transmission valve body needed to be replaced. The vehicle was repaired. The contact stated that the vehicle was at the dealer from December 2024 until June 2025. The vehicle was picked up from the dealer. The contact stated that while driving at an undisclosed speed, the engine seized and failed to restart. The vehicle was towed back to the dealer, where the contact was informed that the fuel pump had failed, and the battery was drained. The contact was informed that the battery and the fuel pump needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 35,000.

The contact owns a 2021 Chevrolet Suburban. The contact stated while driving 55 mph, the vehicle shut off unexpectedly and failed to restart. The transmission was in park(p) and failed to shift to neutral(n). The contact stated that several unknown warning lights were illuminated. The contact stated that the failure was related to NHTSA campaign number: 21v739000 (fuel system, gasoline). The vehicle was towed to an independent mechanic, who determined that the failure was due to the fuel pump module. The vehicle was towed to the local dealer, where it was diagnosed that the failure was due to the module and a battery replacement was needed. The dealer jumpstarted the vehicle. The vehicle was repaired. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 90,000.

The contact owns a 2021 Chevrolet Suburban. The contact stated while driving 5 mph up the driveway, the vehicle lost motive power. The check engine warning light was illuminated. The contact was able to restart the vehicle; however, while the vehicle was idling, the engine shut off upon depressing the accelerator pedal. The vehicle was towed to the dealer, where it was determined that the fuel pump power control module had failed and needed to be replaced; however, the part was on a national backorder. The vehicle was not repaired. The contact related the failure to NHTSA campaign number: 21v739000 (fuel system, gasoline). The manufacturer was notified of the failure and informed the contact that the vehicle could not be repaired under the recall because the VIN was not included. The failure mileage was approximately 46,000.

The contact owns a 2021 Chevrolet Suburban. The contact stated while driving 45-55 mph, the vehicle lost motive power inadvertently. There was no warning light illuminated. The contact was able to veer to the side of the road. The vehicle failed to restart and was towed to the dealer, where it was diagnosed that the fuel pump power control module had failed and needed to be replaced. Additionally, the dealer informed the contact that the battery needed to be replaced. The contact related the failure to NHTSA campaign number: 21v739000 (fuel system, gasoline); however, the dealer informed the contact that the VIN was not included. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 90,000.