2019 Cadillac CT6: common problems and reliability

The 2019 Cadillac CT6 has 15 owner-filed NHTSA complaints and 4 recalls on record. The most-reported areas are power train and service brakes. Owners most often flag unreliable electronics and poor build quality — electronics stop working randomly all over the car. frequency: very frequent.

Safety record for the 2019 model year

15
Owner complaints
4
Recalls
0
Crash reports
0
Fire reports

Source: NHTSA complaints and recalls filed for 2019 Cadillac CT6 vehicles (US, public record).

Where owners report problems

power train
12
service brakes
2
electrical system
1
forward collision avoidance
1
visibility/wiper
1

Recalls affecting the 2019 CT6

service brakes, hydraulic:antilock/traction control/electronic limited slip:abs warning light

Campaign 19V889000

General Motors LLC (GM) is recalling certain 2019 Chevrolet Silverado 1500, Cadillac CT6, and GMC Sierra 1500 vehicles. Due to an Electronic Brake Control Module (EBCM) software error, the vehicle's Electronic Stability …

exterior lighting:turn signal:switch

Campaign 19V117000

General Motors LLC (GM) is recalling certain 2019 Cadillac CT6 vehicles. Rotation of the steering wheel will not automatically cancel the turn-signals from flashing. As such, these vehicles fail to comply with Federal Mo…

seat belts:rear/other

Campaign 18V673000

General Motors LLC (GM) is recalling certain 2018-2019 Cadillac CT6, Escalade ESV, Chevrolet Suburban, Volt, and GMC Yukon XL vehicles. Certain second-row or third-row rear seatbelts retractor assemblies may not automati…

power train:automatic transmission

Campaign 25V148000

General Motors LLC (GM) is recalling certain 2019-2020 Cadillac CT6, 2020-2021 CT4, CT5, and 2020-2022 Chevrolet Camaro vehicles equipped with a 10-speed transmission. The transmission may become damaged internally and c…

What owners say across generations

Mixed sentiment with a clear divide between appreciation for the vehicle's core attributes and significant concerns over reliability and long-term viability. The CT6 is widely praised for its driving dynamics, particularly on the advanced Omega platform, which

  • Unreliable electronics and poor build quality — electronics stop working randomly all over the car. Frequency: very frequent.
  • Problematic 8-speed automatic transmission (8L45 and 8L90) — harsh shifting, jerkiness, especially in 2nd gear, laggy response, subject to class action lawsuits. Frequency: very frequent.
  • Severe engine cooling issues (CT6-V 4.2L Twin-Turbo V8) — engines can burst into flames after hard driving, leading to parking outside as a precaution; described as a fundamental design flaw. Frequency: very frequent.
  • Parts availability and cost — many parts are exclusive to the CT6, making them hard to source and very expensive, a major concern for long-term ownership. Frequency: very frequent.
  • CUE infotainment system — complicated menu layout, sluggish response, noticeable lag, screen freezes, requires costly replacements. Frequency: recurrent.

Owner insights cover all generations of the CT6.

Typical used price

Used CT6 listings typically run $20,774–$29,499 across 2016 to 2020 model years.

Other CT6 model years

2020 CT62018 CT62016 CT6
Full Cadillac CT6 owner reportCompare against another car