2018 Cadillac CT6
Only 9 complaints on file — too few for a fair verdict.
This verdict reflects complaint volume compared to this model's typical year. Recalls and safety issues below apply regardless of the verdict — always check them.
Only 9 complaints on file — too few for a fair verdict. The data below is complete but unranked.
COMPLAINTS PER YEAR
View as data table
| Year | Complaints |
|---|---|
| 2016 | 11 |
| 2017 | 17 |
| 2018 | 9 |
| 2019 | 16 |
| 2020 | 11 |
KNOWN PROBLEM AREAS
Only 9 complaints on file for this model year -- too few to rank by share. Raw counts only, below.
3 of 9 total reports mention: power train.
Show complaint excerpts
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.
NHTSA ODI report, 20260807
MY CADILLAC CT6 (2018) QUIT WORKING WHILE ON THE EXPRESSWAY. I WAS IN THE MIDDLE OF NO WHERE, IN GEORGIA. THIS MADE FOR A VERY DANGEROUS SITUATION AS THE CAR SUDDENLY LOST ALL POWER GOING TO THE WHEELS WHILE DRIVING AT APPROX. 75 MPH.
NHTSA ODI report, 20210121
Also filed under ENGINE and FUEL/PROPULSION SYSTEM
3 of 9 total reports mention: engine.
2 of 9 total reports mention: steering.
Show complaint excerpts
Yes my car was sold to me with structural damages, and I was told any of this when I purchased it!!!!
NHTSA ODI report, 20240215
Also filed under SUSPENSION and STRUCTURE
2 of 9 total reports mention: fuel/propulsion system.
Show complaint excerpts
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.
NHTSA ODI report, 20260807
1 of 9 total reports mentions: suspension.
SAFETY TIMELINE
No recalls on file for this model year.
BUY-SMART CHECKLIST
2018 Cadillac CT6 — pre-purchase inspection
- Test/inspect for power train issues (3 reports on file for this year).
- Test/inspect for engine issues (3 reports on file for this year).
- Test/inspect for steering issues (2 reports on file for this year).
FAQ
Is the 2018 Cadillac CT6 reliable?
There isn't enough NHTSA complaint data on file yet to give this model year a verdict.
What are the most common problems with the 2018 Cadillac CT6?
The most-reported component is power train, accounting for 33% of complaints on file.
How many recalls does the 2018 Cadillac CT6 have?
No recalls are on file for this model year.
Data updated 2026-09-16 · Complaints are unverified owner reports filed with NHTSA, not independently verified defects. Methodology.