FaultScore

Worst years for a Cadillac CT6

Owners have filed 93 complaints about the Cadillac CT6 with NHTSA across model years 2016 to 2020. More of them are about the transmission & drivetrain than anything else.

Avoid

2016 Cadillac CT6

15 complaints — the highest FaultScore of any year, mostly transmission & drivetrain.

Cleanest on record

2019 Cadillac CT6

18 complaints — the lowest FaultScore of the graded years.

Every Cadillac CT6 year, graded

The grade compares each year against the rest of this model's own run — never against another car. Click any bar or row to open that year's report.

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded
Year Grade Complaints Crashes Fires Median miles Most reported
2020 D 16 2 0 8,900 Transmission & Drivetrain
2019 B 18 0 0 61,500 Transmission & Drivetrain
2018 C 16 0 0 28,750 Engine & Cooling
2017 C 28 0 0 10,000 Transmission & Drivetrain
2016 D 15 5 0 2,300 Transmission & Drivetrain

What breaks on a Cadillac CT6

Across every model year on file. Follow a row for that part's complaints and the year it was worst.

Worst in 2019

Brakes 8 8.6%

Worst in 2020

Driver Assist & Collision Avoidance 7 7.5%

Worst in 2020

Engine & Cooling 6 6.5%

Worst in 2018

Electrical System 5 5.4%

Worst in 2017

Suspension 4 4.3%

Worst in 2016

Fuel & Propulsion 4 4.3%

Worst in 2018

Other & Unspecified 4 4.3%

Worst in 2016

Steering 3 3.2%

Worst in 2018

Body & Structure 3 3.2%

Worst in 2017

Wheels 3 3.2%

Worst in 2016

Airbags 2 2.2%

Worst in 2016

Acceleration & Cruise Control 2 2.2%

Worst in 2017

Windows, Mirrors & Wipers 2 2.2%

Worst in 2019

Complaints filed over time

Every complaint about every Cadillac CT6, by the month it reached NHTSA.

May 2018 peak 6 Aug 2026

Compare the Cadillac CT6

Side by side on complaint history. Remember that raw totals track how many were sold as much as how good they were.