2025 Chevrolet Suburban: Power Train complaints
Owner-reported issue (NHTSA complaints, not a recall)
Symptoms
NHTSA has 5 owner complaints for the 2025 Chevrolet Suburban that list the power train component. Complaints are individual owner reports, not verified defects.
Examples:
- NHTSA complaint ODI #11732473 (filed 04/20/2026): “2025 chevrolet suburban high country. vehicle is parked in my garage. went out in the am and the engine only cranks, will not start. called on star for roadside assistance. sent a tow truck, the vehicle could not be towed due to the electronic transmission. there is no way for an owner to place …”
- NHTSA complaint ODI #11718424 (filed 02/17/2026): “Purchased a brand new vehicle on 23dec2025 (evening) and then drove it home and parked it in my garage. vehicle was in my garage at 64 miles on the odometer. vehicle started smoking and the transmission cooler line had the catastrophic failure spilling oil all over the street, driveway, and garage.…”
- NHTSA complaint ODI #11710726 (filed 01/13/2026): “Engine failed going 70mph on highway at 2k miles. display said acceleration no longer available and app said transmission code was needing to be checked however once taking to dealer i was told it was an oil sensor then told there was shredded metal in my engine and i needed a full engine replacemen…”
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.
Typical parts (search links, no affiliate codes)
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Sources
Page last updated .