There are no safety recalls for the 2018 Cadillac CT6, but owners have filed 9 complaints with NHTSA.
2018 Cadillac CT6 problems reported by owners
| Problem area | Reports | |
|---|
| Engine | 3 | |
| Power Train | 3 | |
| Fuel/Propulsion System | 2 | |
| Steering | 2 | |
| Forward Collision Avoidance | 1 | |
| Lane Departure | 1 | |
| Service Brakes | 1 | |
| Exterior Lighting | 1 | |
| Structure | 1 | |
| Suspension | 1 | |
Most reported parts
- Forward Collision Avoidance › Adaptive Cruise Control — 1
- Lane Departure › Assist — 1
- Structure › Body — 1
Typical mileage at the time of the problem: 35,500 miles (median of owner reports).
Problems that are not covered by a recall are paid repairs; labor rates follow local mechanic pay — see what auto mechanics earn in each state.
Recent 2018 Cadillac CT6 complaints
Owner reports filed with NHTSA, as written (personal details removed). Complaints are not verified by NHTSA.
Fuel/Propulsion System · reported Aug 7, 2026
During refueling the gas station pumping nozzle would shut off indicating a full gasoline fuel tank; but, the dash board fuel gage indicated the fuel was not full. Had to dribble in fuel to fill. Dealer Mechanic found: Crash roll over gasoline vent safety valve was stuck in the crashed roll over cut off state. No gas tank ventilation. This caused back pressure in car gasoline tank to shut off gas station filler nozzle as though the car was full . Entire gas tank had to be replaced. Still under warranty.
Power Train · reported Aug 7, 2026
When vehicle was purchased new there was a slight bearing wear noise at the front driver side, which grew louder with years. Noise synchronized with tire rolling rpm. Replacing (my self) front trans axle, the brake pads, shaving rotors, & wheel hub bearing did not fix noise. Next; Dealer shop reported that the AWD front transfer case (differential) had a bad bearing AND that this was a common problem with the model car. $1600 repair bill.
Engine · reported Jun 23, 2026
Stuck Thermostat. Vehicle not achieving operating temperature in the correct time. ALL 3 of the people I know with CT-6's had the exact same issue this year.
Power Train · reported Dec 26, 2025
Front differential case ripped in half and separated from the ring gear. The broken chunk of differential case and pinion was still attached to the driveshaft while coming to an abrupt stop. Damage done within driveshaft tunnel. No warning, no vibration, no cause for concern, just catastrophic failure. Differential and propeller shaft were replaced by an independent mechanic. Cadillac has not been notified as of today, receipt for repair available upon request.
Service Brakes · reported Feb 21, 2023
The brake makes a rattling and metal grinding sound, the dealership said nothing is wrong with the brakes, still problematic. The transmission shifts too hard. Dealer said nothing wrong. Yet cat kicks too hard.
Frequently asked questions
Does the 2018 Cadillac CT6 have any recalls?
No. NHTSA has no safety recalls for the 2018 Cadillac CT6 as of this update. Check your VIN at nhtsa.gov/recalls for the latest status.
What is the most common problem with the 2018 Cadillac CT6?
Owners report engine problems most often (3 reports), followed by power train (3). The typical mileage when problems were reported is about 35,500 miles.
Are Cadillac recall repairs free?
Yes. Safety recall repairs are free at authorized Cadillac dealers, whether you are the first owner or bought the car used.