NHTSA Complaint #11653559 — 2021 GMC SIERRA 1500

UNKNOWN OR OTHER issue reported to NHTSA

Check any vehicle history by VIN - Free vehicle history report

Complaint Details

ODI Number	11653559
Vehicle	2021 GMC SIERRA 1500
Component	UNKNOWN OR OTHER
Date of Incident	April 8, 2025
Date Filed	April 8, 2025
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	MI

Consumer Description

My tailgate will randomly open on its own. I’ve had several instances( 5 or 6 times so far) when I’ve had open on its own. Only once so far when i was driving. Luckily, i was on my private road without anything in my bed that could fall out. I often carry mountain bikes over the tailgate which could pose a serious danger if the tailgate were to open when driving. Also earlier this evening when the tailgate came down on its own while driving, when I got to my destination, I was unable to open the tailgate at all from outside the vehicle. It is apparent the button to release the switch is malfunctioning. I was able to get it to open by using release button inside the vehicle.

Related Complaints for the 2021 GMC SIERRA 1500

Other UNKNOWN OR OTHER Complaints

#11706051 — December 19, 2025 — The coolant control valve has failed on two occasions—once during the warranty period and again approximately 18 mont...

#11701448 — November 25, 2025 — I purchased a 2021 GMC Sierra 1500 Denali (VIN: [XXX] ) from J.C. Lewis Ford in Pooler, Georgia. The dealership did n...

#11699236 — November 13, 2025 — I was traveling home from work and lost all power to the vehicle while driving. No warning lights, check engine light...

#11694348 — October 19, 2025 — I was driving at highway speeds probably doing 55 and another vehicle pulled out in front of me forcing me to slow do...

#11694350 — October 19, 2025 — This was the first time I had ever experienced the rear differential locking up at highway speeds in my truck. It was...

Recent Complaints for the 2021 GMC SIERRA 1500

#11719556 — BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING — February 21, 2026 — I was driving on a highway on my way home from work. Thank god there was not a lot of traffic because my truck just s...

#11719556 — ENGINE — February 21, 2026 — I was driving on a highway on my way home from work. Thank god there was not a lot of traffic because my truck just s...

#11719556 — POWER TRAIN — February 21, 2026 — I was driving on a highway on my way home from work. Thank god there was not a lot of traffic because my truck just s...

#11719314 — ENGINE AND ENGINE COOLING — February 20, 2026 — The contact owns a 2021 GMC Sierra 1500. The contact stated that while operating the vehicle, the check engine warnin...

#11718970 — ENGINE — February 18, 2026 — The failed component is the engine coolant control valve on a 3.0L Duramax truck. The failure has been documented and...