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What 23 owners told NHTSA about the 2017 Cadillac CT6 Hybrid

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 (23)Transmission & drivetrain (15)Electrical system (5)Body & structure (2)Brakes (2)Engine (2)Visibility & wipers (2)Driver assistance (1)Speed control (1)Steering (1)Tires (1)

1 of 23 complaints match · Driver assistance · clear filters

Nov 21, 2024Transmission & drivetrainElectrical systemDriver assistance

These vehicles have an issue tbat GM is aware of, with their 8 speed automatic transmissions which are used in multiple GM vehicles and these cause safety issues because for instance my vehicle switches gears randomly almost causing a wreck, and shuttering, and even slipping and when this happens the cars traction control light is engaged shutting it off, active steering is also shut off due to these on going issues. Im in a cadillac group and hundreds of us have similar issues.

NHTSA ODI 11626548

Working with the data? Download all 23 complaints as CSV · fetched from NHTSA July 25, 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 2017 Cadillac CT6 Hybrid verdict →