2021 CHEVROLET SILVERADO 1500 Complaints

I washed my truck and now suddenly the tailgate opens and closes whenever it decides and I have paint that is bubbling and it looks as if it’s gonna all chip right off the hood

Vehicle is shuttering while driving, vibrating at different speeds and it feels like the wheels are locking.

Vehicle has less than 35k miles. Vehicle started and operated normally Attempted to turn onto main thoroughfare from a stop. While still in drive, vehicle engine rev’d up but transmission did not engage. Attempted to cycle through gear selector with same result. Reverse is the only gear that allowed vehicle movement. Serious safety concern if this were to happen while traveling at any significant speed or if trying to merge or cross heavy traffic. Vehicle has not had an official diagnosis, but I believe this is a transmission valve body problem known to the manufacturer. There was no indication prior to this event of any mechanical or electrical problems with the vehicle. This issue could easily get someone killed.

The 8-speed automatic transmission (8L90) has been failing. It has put me in my passengers safety at risk because my truck can lurch forward without warning due to delayed downshifting and RPM surge. Yes, the dealership has confirmed this issue multiple times. The component has been inspected by the dealership multiple times. Yes, check engine light came on and yes there was symptoms before the failure such as lurching jerking, surging harsh and erratic shifting. They first appeared at 55,000, MI. It continues to happen to this day. I have an appointment scheduled for today at 9:20 a.m. for the dealership to look at it again but this is a legitimate concern.

When putting vehicle in PARK and releasing the foot brake it rolls back an excessive amount of space sometimes it rolls back so much we begin to get scared thinking we are still in DRIVE and jump back in vehicle just to learn we are in PARK. We have had this issue since the day of getting truck in August of 2024 and how much it rolls back is never consistent on the length of the roll back. Sometimes it feels like it make even slip out of gear and just keeping rolling. It’s very scary and we have almost knocked ourselves out when it happens trying to jump back in to stop it.

On January 6 and 7, 2025, the broken transmission valve body was subjected to inspection by a Chevrolet dealership. The vehicle exhibited faulty gear shifts, which resulted in reduced speeds and triggered the activation of "limp mode." This malfunction occurred while driving under severe winter storm conditions, posing a potential risk for serious injury. The issue was methodically diagnosed and documented for parts replacement. Furthermore, the transmission service indicator activated via the associated application, and the check engine light illuminated alongside a blinking "D" mode indicator at the time the warning lights were activated. The initial signs and symptoms of the issue were first observed at 11:00 PM on January 5, 2025.

Valve body went out at 52,000 miles and was replaced under warranty. Went out again at 104,000 miles, has been at dealer for a month now waiting on part that is unavailable

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving 10 MPH, the vehicle hesitated and shifted into another unknown gear independently. The vehicle was taken to the dealer where it was diagnosed that the transmission torque converter and the valve body needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure when a case was opened and escalated the matter to a higher supervisor. The failure mileage was 61,200.

UNKNOWN. PARK Switch module is not working correctly. The vehicle keeps displaying message saying the vehicle needs to be the parking position.

Push-button tailgate electrical failure. Tailgate opens on its own while driving and while truck is off. This is a known issue that has already been recalled by GM but my truck was not included in the recall, even though the problem and repair are exactly the same as the currently recalled vehicles. I had to pay a GM Dealership to make the repair as the vehicle was unsafe to drive due to potential for flying debris from the bed while driving.