Model year record

2020 Cadillac CT6 recalls & problems

The 2020 Cadillac CT6 has 2 safety recalls and 11 owner complaints on file with NHTSA. The most-reported problem area is power train (6 complaints).

Recalls2safety recalls

Complaints11filed by owners

Crashes · fires1 · 0reported in complaints

Injuries · deaths0 · 0reported in complaints

Safety recalls

Power trainMar 6, 2025

Automatic transmission

Recall 25V14800090,081 vehicles

Problem: 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 cause the wheels to lock-up.
Risk: Wheel lock-up while driving increases the risk of a crash.
Fix: Dealers will install transmission control module monitoring software, free of charge. Owner notification letters were mailed April 7, 2025. Owners may contact Cadillac customer service at 1-800-333-4223 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N242480630.

TiresOct 15, 2019

Pressure monitoring and regulating systems

Recall 19V73100081 vehicles

Problem: General Motors LLC (GM) is recalling certain 2020 Cadillac CT6 vehicles equipped with dealer-installed accessory 20" x 8.50" wheels (RPO 5JO or SHH). The tire pressure monitoring system (TPMS) sensors use the incorrect wireless radio frequency and cannot illuminate the low pressure warning light when the tire pressure drops below the recommended level. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 138, "Tire Pressure Monitoring Systems."
Risk: Drivers may drive the vehicle with low tire pressure without a low tire pressure warning, negatively impacting the vehicle handling and increasing the risk of a crash.
Fix: GM will notify owners, and dealers will replace all four TPMS sensors with the correct sensors, free of charge. The recall began December 3, 2019. Owners may contact GM customer service at 1-586-596-1733. GM's number for this recall is N192279200.

Recall repairs are free at any authorised dealer. A recall listed here may already have been fixed on a particular car: enter its 17-character VIN at nhtsa.gov/recalls to see open recalls.

Crash test ratings

2020 Cadillac CT6 4 DR AWD

OverallNot Rated

Frontal crash	Not Rated
Side crash	Not Rated
Rollover	Not Rated

Forward collision warning: Standard · Lane departure warning: Standard

NHTSA 5-Star Safety Ratings (New Car Assessment Program). Ratings are comparable only between vehicles of similar size and weight, and ratings from 2011 on use tougher tests than earlier years. Photos: NHTSA.

Fuel economy

CT6 AWD

21mpg combined

City / highway	18 / 27 mpg
Fuel	Regular Gasoline

3.6 L · 6 cyl · Automatic (S10) · All-Wheel Drive · about $3,200/year to fuel

CT6 AWD

17mpg combined

City / highway	14 / 25 mpg
Fuel	Premium Gasoline

4.2 L · 8 cyl · Automatic (S10) · All-Wheel Drive · about $4,850/year to fuel

EPA estimates from fueleconomy.gov for each engine and transmission sold. Annual cost is the EPA's estimate for 15,000 miles a year at its current fuel and electricity price assumptions. Your results will vary.

What owners report

Problem area	Complaints	Crashes	Typical mileage*
Power train	6	0	—
Service brakes	3	1	900 mi
Forward collision avoidanceAutomatic emergency braking; Adaptive cruise control	3	1	8,900 mi
Suspension	1	0	—
Unknown or other	1	0	—
StructureBody	1	0	—
Wheels	1	0	—

*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.

Recent owner complaints

Wheels
The vehicle was shifting harshly and my wheels were experiencing lock up while in motion which was very dangerous. I experienced this on the parkway as well as streets and almost had a few accidents due to this problem. I drive my wife and children in this vehicle. Our safety and lives were put at risk. There were no warning lamps to advise of troubles. I also have some computer problems that are supposed to be addressed. Gm dealer has had my car for four months and have tried to replace valve four times and all four times the part they received was defective and unsuccessful. I have made many calls to GM and they are giving me the run around. Now they want to replace the entire…
Jun 30, 2025
Power train
The contact owns a 2020 Cadillac CT6. The contact stated while driving 65 MPH, the transmission seized, and the vehicle was coasted over to the right side of the roadway while waiting for tow service. A dealer as contacted. The vehicle was towed to the dealer where it was diagnosed with transmission failure. The vehicle was not repaired. The manufacturer informed the contact that the vehicle was out of warranty. The contact related the failure to NHTSA Campaign Number: 25V148000 (POWER TRAIN); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact was referred to…
May 15, 2024 · 98,000 miles
Power train
The contact owns a 2020 Cadillac CT6. The contact received notification of NHTSA Campaign Number: 25V148000 (Power Train); however, the part to do the recall repair was unavailable. The contact stated that while his wife was driving at an undisclosed speed, the vehicle jerked before slamming into gear. No warning lights were illuminated. In addition, the contact stated that the transmission was shifting rough. The vehicle was taken to the dealer; however, the vehicle was not diagnosed or repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that the failure persisted. The manufacturer was made aware of the…
Dec 17, 2024
Power train
The contact owns a 2020 Cadillac CT6. The contact received notification of NHTSA Campaign Number: 25V148000 (Power Train); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that the transmission was shifting hard. The dealer was contacted. The manufacturer was not made aware of the issue. The failure mileage was approximately 64,000. VIN tool confirms parts not available.
Mar 6, 2025 · 64,000 miles
Power train
See attached document for complaint.
Apr 24, 2025
Power train
The contact owns a 2020 Cadillac CT6. The contact received notification of NHTSA Campaign Number: 25V148000 (POWER TRAIN); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.
Feb 15, 2025
Structure › Body
latelyi have had a problem with my back hatch door opening by it self the problem the last time it happen just before i enter a car wash now ive got a 7800 bill to repair it
Feb 20, 2025
Unknown or other
THE SUPER CRUISE SELF DRIVING FEATURE DOESN'T WORK AND ERROR MESSAGES CONTINUOUSLY FLASH ON DASHBOARD. IT HAS BEEN AT THE DEALER SINCE 12/16 (>9 WEEKS) WITHOUT ANY RESOLUTION. CALLS, EMAILS, POSTS TO CADILLAC AND GENERAL MOTORS GO UNANSWERED. DEALER TELLS ME CADILLAC ENGINEERS FROM CORPORATE COME AND GO WITH NO SOLUTION. I'VE MADE 2 PAYMENTS TO DATE WITHOUT MY CAR. I NOTIFIED GM FINANCIAL I WILL NO LONGER MAKE PAYMENTS ON A CAR I DO NOT HAVE. ALSO NO RESPONSE.
Dec 16, 2020 · 8,900 miles

Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.