2021 GMC Sierra 1500 Crew Cab Consumer Reviews

3.2 out of 5 stars
14 reviews
MSRP Starting at
$36,400

Save as much as $1,823
Select your model:

Trending topics in reviews

Pros
Cons
1 out of 5 stars

5.3 Liter lifter replacement

JCCFP, 05/29/2021
SLT 4dr Crew Cab 5.8 ft. SB (5.3L 8cyl 8A)
11 of 11 people found this review helpful

I bought the 2021 Sierra in April, 2021 with high hopes. After 3,600 miles, the #4 cylinder lifter went bad requiring the removal of the head and valve lifters. Apparently, this is pretty common with the 5.3 liter engine with AFM. Oh, and the ride and mileage are horrible. As soon as I get the vehicle title from the state, I'm selling it and going back to a Buick Enclave.

Safety
5 out of 5 stars
Technology
4 out of 5 stars
Performance
5 out of 5 stars
Interior
5 out of 5 stars
Comfort
5 out of 5 stars
Reliability
1 out of 5 stars
Value
1 out of 5 stars
Report Abuse

1 out of 5 stars

Bad engine design

Kraig Monroe, 05/12/2021
SLT 4dr Crew Cab 4WD 6.6 ft. SB (5.3L 8cyl 10A)
24 of 26 people found this review helpful

My 2021 GMC Sierra 1500 had to have new lifters and push rods put in at 3600 miles then again at 5200 miles had the same problem waiting on dealership and General Motors to get back with me.I think they should buy back this truck in my opinion nobody should have this problem with a brand new truck purchased in January 2021.steelworker96@gmail.com

Safety
3 out of 5 stars
Technology
3 out of 5 stars
Performance
1 out of 5 stars
Interior
3 out of 5 stars
Comfort
5 out of 5 stars
Reliability
1 out of 5 stars
Value
1 out of 5 stars
Report Abuse
1 out of 5 stars

Complete shut down on 2021 GMC Sierra 1500 duraMac

Jr, 02/16/2021
Denali 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 10A)
21 of 23 people found this review helpful

Complete failure needed to be towed in three times less than 500 miles. Power or computer problems and still trying to fix!

Report Abuse
ad labelAd
Build Your Sierra 1500
At a Glance:
  • 9 Colors
  • 1 Trim
  • $29,700starting MSRP
Build & PriceGMC.com
*The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. See your GMC dealer for details. Some colors are extra cost. See dealer for details.

2 out of 5 stars

I was a GM guy….

Nick , 07/18/2021
Denali 4dr Crew Cab 5.8 ft. SB (5.3L 8cyl 8A)
8 of 9 people found this review helpful

Brand new 2021 GMC Sierra 1500 Denali, 5.3 v8. Was in the shop early on because the engine light kept going on and off disabling the remote start in the dead of winter. Turned out to be a software issue and reprogrammed. Then at 9005 km became disabled while I was working. Had it towed and had to argue with GM to tow to home dealership because the local one had no loaner vehicles and I was over an hour from home. Loaner vehicle a canyon even though I said I needed a full size truck. Turns out to be the lifter and pushrod and they can’t source the part. Now making payments on a denali while I’m driving a canyon. To boot, they informed me of 3 recalls nobody bothered to tell me about. Just has to do with the air bags and seat belts, nothing important. Had a 2017 Sierra 1500 prior to this with only minor issues (radio replaced, back axel leak and some recalls but overall great truck) Will be looking to trade this in the near future, likely getting an f150.

Report Abuse

1 out of 5 stars

Blown engine before first oil change

J, 06/18/2021
AT4 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 10A)
7 of 8 people found this review helpful

First GMC has not been the best experience. 1500 At4 5.3. Lifter failed at 1800 miles bent pushrod engine got rebuilt. Less than 4000 miles front differential starts making noise GM won't fix it. Sounds like metal on metal, called gm called the dealer still no resolution.... "engineering is working on a solution" it's the same problem the 19 and 20 have but they can get it fixed.... Not enough 21's on the road to trigger the recall...

Safety
3 out of 5 stars
Technology
3 out of 5 stars
Performance
3 out of 5 stars
Interior
5 out of 5 stars
Comfort
5 out of 5 stars
Reliability
1 out of 5 stars
Value
3 out of 5 stars
Report Abuse
Items per page: