There are 1 owner-reported brakes complaints for the 2019 Cadillac CT6in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
TL* THE CONTACT OWNS A 2019 CADILLAC CT6. WHILE DRIVING, THE BRAKE SYSTEM FAILED TO ENGAGE. THE VEHICLE WAS TAKEN TO AN UNKNOWN DEALER WHERE IT WAS DIAGNOSED THAT THE BRAKE BOOSTER FAILED AND NEEDED TO BE REPLACED. THE MANUFACTURER WAS CONTACTED AND PROVIDED CASE NUMBER: 9-5610946955. THE FAILURE MILEAGE WAS 1,800.
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 25, 2026