10.0

really awful
Crashes / Fires:
0 / 2
Injuries / Deaths:
0 / 0
Average Mileage:
608 miles

About These NHTSA Complaints:

The NHTSA is the US gov't agency tasked with vehicle safety. Complaints can be spread across multiple & redundant categories, & are not organized by problem. See the Back button — blue bar at the very top of the page — to explore more.

Get notified about new defects, investigations, recalls & lawsuits for the 2021 GMC Sierra 1500:

Unsubscribe any time. We don't sell/share your email.

Get free help with your lemon!
close ad

« Read the previous 20 complaints

problem #6

Dec 012021

Sierra 1500

  • miles
Prior to this incident I had lifter failure on my 2021GMC SierraAt 8464 miles, I was on my way to work and I heard a loud bang and I had to pullover off the highway, my dad had to come all the way out To get the vehicle because it had major engine damage and it was on a holiday so no one would come help me.The vehicle was in the shop for over a week getting these repairs done, upon receiving vehicle it had been a week and I received service four-wheel-drive messages on the dash.Trying to use four-wheel-drive after this was a no-go every time I push the button nothing would happen it would stay in two wheel drive.After this I made an appointment with the dealership for this issue to be fixed, as I was going to get readyTo leave again with the truck having no issues other than what I-??ve stated when I went to go start the truck nothing happened at all every light lit up on the dash and part of me thinks it-??s an electrical issue but the Other part of me thinks the motor is locked up. Also the lights would not shut off when I turn the vehicle off so I-??ll have a dead battery in the morning.

- Holly, MI, USA

problem #5

Oct 082021

Sierra 1500

  • miles
I started my truck this morning, drove it 3 miles, and all of a sudden got an ESC warning, Parking break warning, and a degraded power steering warning all at one time. My steering wheel started vibrating vigorously, a clanking sound started under the hood somewhere, and none of my safety features worked after.. Cruise Control, Vehicle Collision Control, Vehicle Gap sensors, etc.. The vehicle is currently at the dealer being looked at.

- Live Oak, FL, USA

problem #4

May 262021

Sierra 1500 4WD 6-cyl Diesel

  • Automatic transmission
  • miles
This is the second time I stop at the grocery store for about 15 or 20 min, get back in the car push the start, then the truck keep cranking with no start for about 20 seconds. Then I try second time and it fires up.

- Gresham, OR, USA

problem #3

Apr 042021

Sierra 1500

  • 10 miles
The auto stop feature on my truck is dangerous! there is no way to permanently disable it. When pulling into traffic from a stop, there is a significant delay for the car to restart and get moving! I have almost been in several accidents because of this. Forget the $20 in gas this junk might save someone over a year! it is dangerous

- Pembroke Pines, FL, USA

problem #2

Apr 172021

Sierra 1500

  • 3,400 miles
Returned home after some shopping. Parked truck in drive way. Approximately 5 minutes after returning home my wife saw truck smoking from under the hood. Within another minute or two there were visible flames coming from the back edge of the hood. We called 911. Within 5 minutes the entire front end of the truck was engulfed in flames. The fire department arrived and put out the fire but the entire front and cab of the truck was destroyed. Fire investigators determined fire started at back of engine compartment near battery. Vehicle was stopped parked in off condition. In my driveway. No mechanical problems were noticed on ride home and there were no panel alerts for problems.

- Troupsburg, NY, USA

problem #1

Dec 072020

Sierra 1500

  • 847 miles
Started vehicle everything was normal shifted vehicle into drive proceeded forward. While driving vehicles steering seized I was unable two move the steering wheel. It was also very difficult to stop the vehicle brakes were not working properly. Messages came up on to display reading service power steering and briefly imessage about the brakes flashed quickly on the message board. At that point turn the vehicle off after I got it stopped turn it back on same message still unable to turn the steering wheel repeated this several times approximately for fourth time the message cleared and the vehicle was back to normal. This occurred on a city street.

- Tucson, AZ, USA