2021 Chevrolet Silverado 2500: check engine light

Filed Mar 16, 2026 · Engine · IL

Similar to the issues that were on the gas version of this engine and the recall associated with it. The engine seized on the expressway. When it was towed to the dealership, they said it was catastrophic engine failure. They found a lot metal shavings in the oil pan. They did not diagnose any further due to cost. At the time it happened, there were no warning lights or check engine lights on.

Filed Dec 23, 2024 · Transmission · 122,000 miles · CA

The contact owns a 2021 Chevrolet Silverado 2500. The contact stated while driving 55-60 MPH, the rear wheels seized. The contact had to release the accelerator pedal to self-correct the failure. The contact stated that the failure occurred twice. The vehicle was taken to the dealer, and the contact was informed that the vehicle was included in the federal safety agency Campaign Number: 24V797000 (Power Train); but was repaired. The contact stated while driving 25-30 MPH after the repair, the failure reoccurred a third time. The check engine warning light illuminated and the “Engine Power Reduced” message was displayed. The vehicle was taken to another dealer, Chevrolet of Montebello (310 W Whittier Blvd, Montebello, CA 90640); but was not diagnosed or repaired. The manufacturer was made aware of the failure and opened a case. The failure mileage was 122,000.

Filed Jan 30, 2023 · Engine, Fuel system · MN · 1 injury

JULY 2022 DPF filter was throwing check engine light. Took to dealer to get diagnosed, part was ordered and the DPF was replaced August 19th 2022. Started to get headaches in vehicle while driving it. OCT 9th ended up in hospital after driving vehicle and was diagnosed with CARBON MONOXIDE POISONING. Experienced symptoms of losing consciousness, worst headache I've ever had, nausea for 5 hours, loss of feeling in body and seizing of body. Took truck to dealer to get inspected twice and nothing was found to be wrong with it. NOV 10th Took truck on another road trip and was having similar symptoms as before however had more chest pain this time so went back to hospital. Took truck back to dealer to have inspected again and was told that it was fine. Nov 18th took truck on another road trip and within 20 mins of driving had another horrible headache. Pulled over and needed to get air and ended up driving truck 4 hours home with windows and sunroof open to avoid getting carbon monoxide poisoning again. I have been ill since August and that is due to diesel and carbon monoxide poisoning every single time I drive the vehicle which is daily. The truck has been now at the dealership for 70 days without any update or improvement in the case.

Filed Oct 14, 2021 · Brakes · MI

My fiance started the truck. Drove about 2 miles from my mothers house, the check engine light came on. The traction control light came on and then she informed me that it felt like all braking power was lost. Truck is being towed to dealership. Could have killed or badly injured someone.

Filed Apr 3, 2021 · Engine · 4,200 miles · NY

My truck will not start randomly. The truck will crank but won't fire. If I wait a while it will eventually start. I took it to the dealer and was told that they could not recreate it. No check engine light on and no error codes noted.