There are 2 owner-reported engine complaints for the 2016 Cadillac CT6in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
The turbo boost failed cylinder 2 ( after being repaired ) continues to show issues
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.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026