2021 Chevrolet Silverado problems

“The lifter on my cylinder one is failing. This is a known issue with the Chevrolet 5.3L 8cylinder engine and 2021 models are known for being notoriously bad with lifter issues. My safety and the safety of other drivers that own 2021 Chevrolet models is impacted due to this issue can cause the engine to completely fail and shut off while driving which could cause severe injuries up to death. The problem is a widespread issue and mine was confirmed by an independent service mechanic. The vehicle is now being inspected by the dealership. The issue did not arise until I reached 104,000 miles.”

“2021 Silverado with 5.3 engine/8spd transmission/38,000 miles just outside of the 5-year powertrain warranty *No current recalls under this VIN as of 10/07/2026* Undiagnosed issues with symptoms similar to transmission or rear end slippage, torque converter or clutch pack problems. No warning lights or messages have appeared 1) Vehicle seems to hunt for proper gearing between 30-40 mph (3rd to 4th gear) with light shuddering before shifting gears. Occurred 20+ times 2) Sudden jerk when taking off from dead stop. Feels like being lightly bumped from behind then drives normally. Occurred 4 times 3) Only noticed when towing appx 6,000lb trailer descending down a hill - A one-time loud clunk when easing off throttle and coasting downhill. The sound is similar to hitting a metal desk with a fist. Occurred 7 times. Spoke with local Chevrolet dealer who informed me the powertrain warranty has recently expired, and no repair cost would be covered. Recommended dealer service would be to replace the transmission fluid and filter with Mobil 1, potentially reprogram the transmission, and replace the torque converter. All on a vehicle with only 38,000 miles”

“While driving approximately 30–40 mph through an uphill left-hand curve, the steering suddenly became extremely stiff and very difficult to turn. I do not recall seeing any warning before I noticed the steering becoming stiff. While trying to control the vehicle, I noticed “Service Power Steering” and “Service ESC” warnings approximately 1–2 seconds later. I cannot say exactly when the warnings first appeared because everything happened very quickly and I was focused on trying to control the vehicle. The vehicle left the roadway onto an adjacent lawn and traveled along a steep hillside beside the road. The driver-side mirror struck a curve sign and broke before the vehicle returned to the roadway. The vehicle also bounced while traveling off the road, and there is additional visible body damage. I do not yet know whether there is hidden steering, suspension, underbody, or other damage. A passenger was in the vehicle and witnessed the incident. Shortly afterward, while taking the passenger home, the steering again became extremely stiff and I again noticed the Service Power Steering and Service ESC warnings. Because the steering problem occurred twice, I parked…”

“The contact owns a 2021 Chevrolet Silverado 1500. While driving approximately 35 - 40 MPH, the check engine warning light illuminated, and the vehicle lost automotive power. The contact parked and restarted the vehicle; however, the RPM fluctuated and the failure persisted while driving. The vehicle then failed to restart and was towed to the dealer and DTC: P0016 was retrieved. The failure was associated with NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the VIN was not included in the recall. The manufacturer was notified of the failure by phone. The failure mileage was approximately 85,000.”

“While driving vehicle service power steering light came on had no power steering had to wrestle steering wheel no power steering a smaller person would not have able to handle it”

“While coming to a stop, a snap ring came off the brake master cylinder. Vehicle top speed was 40mph, with the parking brake automatically engaged. ***Note from mechanic: Vehicle has several brake faults, C05CC and C05CF master cylinder piston position sensor performance, C2A17 hydraulic brake sponginess, and C0277 brake pedal position sensor fault. Tech recommends Hydraulic Brake Unit replacement***”