2022 GMC Sierra 2500HD: Power Train complaints
Owner-reported issue (NHTSA complaints, not a recall)
Symptoms
NHTSA has 5 owner complaints for the 2022 GMC Sierra 2500HD that list the power train component. Complaints are individual owner reports, not verified defects.
Examples:
- NHTSA complaint ODI #11721120 (filed 02/28/2026): “Was driving down the highway and was approaching a red light. as i was slowing down my transmission down shifted hard and my rear wheels briefly locked up and my truck went in to reduced power took to dealership only to find out the valve body failed and my truck wasn't covered…”
- NHTSA complaint ODI #11678157 (filed 08/04/2025): “I am receiving a "shift to park" warning intermittently when parking my truck. the truck is in park, but the transmission does not recognize this and flashes the warning on the dash and chimes. while this is happening, i cannot lock the vehicle, and the battery is being drained. i have read that thi…”
- NHTSA complaint ODI #11662855 (filed 05/23/2025): “I was driving home from work and my truck down shifted and rear wheels locked up, now it’s in limp in mode and will not shift.…”
Likely causes
These complaints do not establish a single root cause; read the examples above and get a diagnosis.
Fix, in plain English
No single fix is established by these reports. Check your VIN for open recalls at nhtsa.gov/recalls, ask a dealer about technical service bulletins (TSBs) or extended warranty coverage, then have the system diagnosed.
DIY difficulty: Pro
Diagnosis needs a scan tool; repair or replacement needs a lift, transmission jack and the manufacturer's fluid fill/relearn procedure. (Our assessment.)
Cost
No sourced cost range for this issue. Get a written quote after diagnosis.
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