2014 GMC Sierra 2500HD: Power Train complaints
Owner-reported issue (NHTSA complaints, not a recall)
Symptoms
NHTSA has 13 owner complaints for the 2014 GMC Sierra 2500HD that list the power train component. Complaints are individual owner reports, not verified defects.
Examples:
- NHTSA complaint ODI #11620327 (filed 10/17/2024): “The contact owns a 2014 gmc sierra. the contact stated that while making a right turn into the driveway, the steering wheel had become stiff. no warning light had illuminated. the vehicle was no longer being driven since the steering wheel was too stiff and required excessive force causing control t…”
- NHTSA complaint ODI #11362309 (filed 10/01/2020): “The gear shift went loose when i stopped and went to put it in park. then no ability to shift or re-start the truck. the cable broke and i was told this is a known issue. my report says that there are no un-repaired recalls on this truck. why is there no recall on this known issue?…”
- NHTSA complaint ODI #10824723 (filed 02/07/2016): “The biggest problem (out of many) that makes this vehicle unsafe, stressful, and discomforting to drive is how it will randomly decides to raise the idle to 900+ rpm (in gear) and basically drives it's self. during this condition it is very difficult to operate vehicle. because of its random patter…”
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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