2025 Chevrolet Suburban: Engine complaints
Owner-reported issue (NHTSA complaints, not a recall)
Symptoms
NHTSA has 16 owner complaints for the 2025 Chevrolet Suburban that list the engine component. Complaints are individual owner reports, not verified defects.
Examples:
- NHTSA complaint ODI #11760766 (filed 08/30/2026): “Valve spring broke at approximately 5200 miles. dealer replaced the head.…”
- NHTSA complaint ODI #11760215 (filed 08/28/2026): “The contact owns a 2025 chevrolet suburban. the contact stated that while driving approximately 65 mph, a banging noise was heard coming from the engine compartment, and the vehicle decelerated. in addition, several warning lights, including the check engine light and the anti-lock braking system li…”
- NHTSA complaint ODI #11738649 (filed 05/18/2026): “3.0 duramax engine failure at 5900 miles. apparently is from the known thrust bearing issue. mil, cel, tcm illuminated. failure occurred at 60 mph during rush hour traffic. engine is being replaced under warranty. gm should issue recall for the affected lot of this engine.…”
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
Internal engine work (lifters, oil consumption, fuel dilution diagnosis) requires engine teardown or dealer software/tests. (Our assessment.)
Cost
No sourced cost range for this issue. Get a written quote after diagnosis.
Typical parts (search links, no affiliate codes)
AutoZone · O'Reilly · Advance · RockAuto
Sources
Page last updated .