YearToAvoid

2021 GMC Sierra 1500 Structure & Body Problems

NHTSA lists 22 Structure & Body complaints for the 2021 GMC Sierra 1500, about 4% of its 570 total complaints for the year, with a median failure mileage of 43,000 and no related recall on file.

Structure & Body complaints
22
4% of 570
Crashes reported
0
Fires reported
0
Injuries reported
1
Median mileage
43,000 mi
Related recalls
0

Typical body and structure symptoms owners report

  • The electric multifunction tailgate spontaneously unlatches or opens while parked or driving, sometimes damaging attached cargo.
  • The inner tailgate door lowers on its own or fails to respond correctly when the release button is pressed.
  • Owners report water leaking into the cabin through the rear sliding window.
  • One owner reported a dash line detaching from its holder and rubbing against the vehicle frame, producing abnormal noise.
  • One owner reported a fractured front-end frame accompanied by erratic shaking and loss of motive power.
  • One owner cited a sharp interior trim edge between the front seats that caused a hand injury.

When 2021 GMC Sierra 1500 body and structure complaints were filed

First complaint Dec 7, 2020, latest Sep 16, 2026.

2021 GMC Sierra 1500 structure & body complaints: complaints filed per month2Dec 2020Oct 2022Jun 2024Dec 2024May 2025May 2026Sep 2026
22 complaints filed with NHTSA from Dec 2020 to Sep 2026; peak Mar 2024 (2).

Structure & Body recalls for the 2021 GMC Sierra 1500

No safety recalls on record for this model year.

Structure & Body complaints by Sierra 1500 model year

Raw complaint counts per model year; newer years have had less time to accumulate complaints.

  1. 200514 (5%)
  2. 200613 (6%)
  3. 200729 (9%)
  4. 200876 (16%)
  5. 200933 (12%)
  6. 201047 (22%)
  7. 201164 (18%)
  8. 201230 (21%)
  9. 201333 (20%)
  10. 201449 (6%)
  11. 201541 (5%)
  12. 201616 (4%)
  13. 201713 (3%)
  14. 201812 (4%)
  15. 201920 (3%)
  16. 202013 (3%)
  17. 202122 (4%)
  18. 2022106 (18%)
  19. 202389 (19%)
  20. 202430 (8%)
  21. 20253 (3%)

Frequently asked questions

Does the 2021 GMC Sierra 1500 have a tailgate recall?
No related recall is listed for the 2021 Sierra 1500's Structure & Body complaints. Several owners noted that similar tailgate recalls applied to the 2,500 and 3,500 models but not the 1500.
How common are body and structure complaints on the 2021 Sierra 1500?
NHTSA lists 22 Structure & Body complaints for the 2021 Sierra 1500, which is about 4% of the 570 total complaints filed for that model year.
At what mileage do these structure and body problems tend to appear?
The median mileage at failure for Structure & Body complaints on the 2021 Sierra 1500 is 43,000 miles.
Were there any crashes or injuries linked to these complaints?
NHTSA records zero crashes and zero fires among these 22 complaints, but one injury was reported, tied to a sharp interior trim edge.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.