2025 Chevrolet Tahoe: Engine complaints
Owner-reported issue (NHTSA complaints, not a recall)
Symptoms
NHTSA has 31 owner complaints for the 2025 Chevrolet Tahoe that list the engine component. Complaints are individual owner reports, not verified defects.
Examples:
- NHTSA complaint ODI #11772725 (filed 10/21/2026): “This report is related to nhtsa ea26005 investigation. my 2025 tahoe had an engine failure while on a trip. the speed was approximately 55 mph. the suv was in l9 transmission setting driving up a slight grade on the highway. the engine rpm was approximately 2,000 rpm. engine oil press, accordin…”
- NHTSA complaint ODI #11767479 (filed 09/28/2026): “Began to accelerate to pass a slower vehicle on the highway. just as it started to accelerate the engine abruptly shut off and the vehicle began decelerating. many warning messages came up on the dashboard but none were present prior to the event. was able to coast onto the shoulder of the highway b…”
- NHTSA complaint ODI #11764705 (filed 09/16/2026): “On september 5, 2026, at approximately 7:18 p.m. pacific time, a 2025 chevrolet tahoe high country equipped with the 6.2l l87 v8 engine and approximately 18,000 miles experienced a sudden catastrophic failure while the engine was running. there were two occupants. a distinct pop was heard. the engi…”
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 .