The turbo boost failed cylinder 2 ( after being repaired ) continues to show issues
Engine & cooling
2016 Cadillac CT6 Engine problems
Owners have filed 2 complaints about the 2016 Cadillac CT6's engine & cooling with NHTSA - 18% of all its complaints, most recently on August 8, 2025. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.
- Complaints
- 2
- Recalls
- 0
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
Engine complaints
When I am turning under 25 mph, I accelerate and there is a delay and a drag before the vehicle starts to accelerate. If I do not allow room, I could get hit because there is a delay. Very dangerous. Almost feels like a vacuum issue.
Cadillac CT6 engine complaints by year
CT6 engine problems, every yearSource: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data