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What 10 owners told NHTSA about the 2018 Cadillac CT6

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (10)Engine (4)Steering (3)Transmission & drivetrain (3)Body & structure (1)Brakes (1)Driver assistance (1)Electrical system (1)Electronic Stability Control (esc) (1)Fuel system (1)Lane Departure (1)

1 of 10 complaints match · Body & structure · clear filters

Feb 15, 2024SteeringSuspensionBody & structure

Yes my car was sold to me with structural damages, and I was told any of this when I purchased it!!!!

NHTSA ODI 11572148

Working with the data? Download all 10 complaints as CSV · fetched from NHTSA July 21, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2018 Cadillac CT6 verdict →