Home · 2019 Cadillac CT6 Hybrid · Complaints

What 15 owners told NHTSA about the 2019 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 (15)Transmission & drivetrain (12)Brakes (2)Driver assistance (1)Electrical system (1)Visibility & wipers (1)

2 of 15 complaints match · Brakes · clear filters

Jan 16, 2025Electrical systemBrakesDriver assistance

ABS system error StabiliTrak error Cruise Control error Vehicle with <14,000 miles is exhibiting symptoms of earlier ABS recall.

NHTSA ODI 11636207

Oct 29, 2019Brakes

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.

NHTSA ODI 11276963

Working with the data? Download all 15 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 2019 Cadillac CT6 Hybrid verdict →