YearToAvoid

2023 GMC Sierra 2500 Transmission & Powertrain Problems

Owners filed 20 transmission & powertrain complaints for the 2023 GMC Sierra 2500, accounting for 63% of all complaints filed for the year. The median mileage at failure was 33,500 miles, and no related recall exists for this component.

Transmission & Powertrain complaints
20
63% of 32
Crashes reported
1
Fires reported
0
Injuries reported
1
Median mileage
33,500 mi
Related recalls
0

Typical transmission symptoms owners report

  • Owners report the transmission valve body failing, sometimes multiple times on the same truck, requiring replacement or full transmission overhaul.
  • Drivers describe the truck losing power suddenly while accelerating or merging, with the engine revving abnormally and dashboard warnings for reduced engine power.
  • Several complaints describe the transmission shuddering, jerking, or slamming into gear at highway speeds, sometimes accompanied by a loud clunk or metallic bang.
  • Owners report the vehicle shifting gears on its own or shaking before entering limp mode, often near 35 to 45 mph.
  • One owner reported the transmission locking up solid while towing a heavy load, causing the truck to slide before releasing into limp mode.
  • A separate complaint described a 'Shift to Park' message with the accessory power failing to turn off after the driver attempted to exit the vehicle.

When 2023 GMC Sierra 2500 transmission complaints were filed

First complaint Apr 27, 2023, latest Jul 7, 2026.

2023 GMC Sierra 2500 transmission & powertrain complaints: complaints filed per month3Apr 2023Jun 2024Nov 2024Mar 2025May 2025Jul 2025Jan 2026
20 complaints filed with NHTSA from Apr 2023 to Jul 2026; peak Sep 2025 (3).

Transmission & Powertrain recalls for the 2023 GMC Sierra 2500

No safety recalls on record for this model year.

Transmission & Powertrain complaints by Sierra 2500 model year

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

  1. 20057 (6%)
  2. 200612 (18%)
  3. 20072 (2%)
  4. 20083 (5%)
  5. 20090 (0%)
  6. 20100 (0%)
  7. 20116 (10%)
  8. 20124 (13%)
  9. 20135 (11%)
  10. 20143 (10%)
  11. 20158 (9%)
  12. 20161 (2%)
  13. 20176 (16%)
  14. 20183 (9%)
  15. 20192 (6%)
  16. 202024 (32%)
  17. 202112 (24%)
  18. 20225 (12%)
  19. 202320 (63%)
  20. 202427 (25%)
  21. 20253 (11%)

Frequently asked questions

How common are transmission problems in the 2023 GMC Sierra 2500?
NHTSA lists 20 transmission & powertrain complaints for the 2023 Sierra 2500, which is 63% of all 32 complaints filed for that model year.
Is there a recall for the 2023 GMC Sierra 2500 transmission?
No. NHTSA lists no related recalls for the transmission & powertrain component on this model year.
At what mileage do transmission failures happen on the 2023 Sierra 2500?
The median mileage at failure reported to NHTSA is 33,500 miles.
What specific transmission failures do owners describe?
Owners most often describe valve body failures, sudden loss of power with reduced-power warnings, hard shifts or jerking, and the transmission entering limp mode, including one case of the transmission locking up while towing.
Did any of these transmission complaints involve a crash or injury?
Yes, NHTSA data for this component and year shows 1 crash and 1 injury among the 20 complaints, and 0 fires.

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.