NHTSA vehicle safety data

2020 Cadillac CT6 Recalls & Complaints

The 2020 Cadillac CT6 has 2 NHTSA recall campaigns and 11 owner complaints on file as of November 3, 2026. Recall repairs are usually free at an authorized Cadillac dealer.

NHTSA recall and complaint data for the 2020 Cadillac CT6. Recall data is refreshed daily from NHTSA.

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2020 Cadillac CT6 owner complaints

Owners have filed 11 complaints with NHTSA about the 2020 Cadillac CT6, describing incidents dated May 10, 2020 to June 30, 2025.

Most-cited components

Power Train 6 complaints
Service Brakes 3 complaints
Forward Collision Avoidance 2 complaints
Structure 1 complaint
Suspension 1 complaint
Unknown or Other 1 complaint

Of the 11 complaints on file, 2 report a crash (owner-reported, not verified by NHTSA).

Newest complaints

ODI #11690488 · Filed September 30, 2025
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…
ODI #11673799 · Filed July 15, 2025
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…
ODI #11667446 · Filed June 17, 2025
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…

Read all 11 complaints

Transmission Damage May Cause Wheel Lock-Up

NHTSA #25V148000 · Power Train — Automatic Transmission · NHTSA notice

Reported March 6, 2025 · General Motors, LLC

Potentially affected: 90,081 vehicles

Repair completion: 71.21% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Manufacturer campaign N242480630 · Owners notified April 7, 2025

Defect description

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.

Safety consequence

Wheel lock-up while driving increases the risk of a crash.

Manufacturer remedy

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.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 888-327-4236 (TTY 888-275-9171) or go to nhtsa.gov.

Incorrect TPMS Sensors Installed/FMVSS 138

NHTSA #19V731000 · Tires — Pressure Monitoring and Regulating Systems · NHTSA notice

Reported October 15, 2019 · General Motors LLC

Potentially affected: 81 vehicles

Repair completion: 100% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Manufacturer campaign N192279200 · Owners notified December 3, 2019 · Vehicles built August 1, 2019 – September 9, 2019 (per NHTSA)

Defect description

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."

Safety consequence

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.

Manufacturer remedy

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.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

2020 Cadillac CT6 4 DR AWD

—

out of 5

Overall Safety Rating

Not Rated

Frontal Crash

Not Rated

Driver: Not Rated, Passenger: Not Rated

Side Crash

Not Rated

Driver: Not Rated, Passenger: Not Rated

Side Pole

Not Rated

Rollover

Not Rated

Safety Technology

Electronic Stability Control Forward Collision Warning Lane Departure Warning

11 owner complaints have been filed with NHTSA for the 2020 Cadillac CT6.

Power Train; Wheels

ODI #11690488

Incident: June 30, 2025 · Filed: September 30, 2025

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 transmission but wanted to use aftermarket part which more than likely is also defective. They are having a hard time obtaining a new transmission and also advised me I would be responsible for the cost of this replacement when they get a new transmission. At this point I am not willing to risk mine or my families life by driving this car after they try to replace transmission. I’m also not willing or able to pay for this repair that was no fault of mine. I am not sure how to proceed in getting them to replace entire vehicle but that is the safest option at this point.

Power Train

ODI #11673799

Incident: May 15, 2024 · Filed: July 15, 2025

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 the NHTSA Hotline for assistance. The failure mileage was 98,000. Parts distribution disconnect.

Power Train

ODI #11667446

Incident: December 17, 2024 · Filed: June 17, 2025

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 issue. The failure mileage was unknown. VIN tool confirms parts not available.

Power Train

ODI #11666008

Incident: March 6, 2025 · Filed: June 10, 2025

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.

Power Train

ODI #11662581

Incident: April 24, 2025 · Filed: May 22, 2025

See attached document for complaint.

Power Train

ODI #11654171

Incident: February 15, 2025 · Filed: April 11, 2025

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.

Structure

ODI #11644679

Crash

Incident: February 20, 2025 · Filed: February 24, 2025

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

Unknown or Other; Forward Collision Avoidance

ODI #11396890

Incident: December 16, 2020 · Filed: February 19, 2021

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.

Service Brakes; Forward Collision Avoidance

ODI #11374732

Crash

Incident: November 13, 2020 · Filed: November 15, 2020

ON FRIDAY, NOVEMBER 13, 2020 I WAS STOPPED AT A STOPLIGHT IN MARYSVILLE, OHIO. IT APPEARED THAT TRAFFIC STARTED TO MOVE, SO I TOOK MY FOOT OFF THE BRAKE. ALMOST IMMEDIATELY THE EMERGENCY BRAKING FEATURE ENGAGED. WHILE THIS TENDS TO STARTLE YOU BECAUSE IT IS SO ABRUPT, ALMOST LIKE A HEAD-ON COLLISION, I PRESSED ON THE BRAKE. THE BRAKE DID NOT STOP THE CAR. IT WAS SIMILAR TO WHEN ANTI-LOCK BRAKING IS ENGAGED. THE BRAKES FELT LIKE THEY WERE PULSATING, SO THE CAR CONTINUED TO MOVE FORWARD UNTIL IT PRESSED UP AGAINST THE CAR IN FRONT OF ME. I HAVE HAD SOME INSTANCES WHERE WHEN BACKING UP, IN A COMPLETELY EMPTY PARKING LOT OR STREET AND THE CAR WILL BRAKE ON ITS OWN. THERE ARE NO POSTS, TREES OR ANY OBJECTS LIKE THAT ANYWHERE NEARBY TO TRIGGER THE BRAKING. THE MARYSVILLE (OHIO) POLICE DEPARTMENT RESPONDED TO THE ACCIDENT. THE FILE NUMBER FOR THE POLICE REPORT IS 20.01993. I WAS NOT CITED BECAUSE I WAS IN ESSENCE UNABLE TO STOP THE CAR. THERE WAS PLENTY OF TIME TO STOP THE CAR AS I DON'T BELIEVE I PRESSED THE ACCELERATOR AT ALL. THE CAR CURRENTLY HAS A WARNING APPEARING THAT INDICATES DRIVER ASSIST SYSTEM NEEDS SERVICE. I'M NOT SURE IT'S SAFE TO OPERATE THIS VEHICLE SINCE THIS HAPPENED WHILE IN TRAFFIC.

Suspension; Service Brakes

ODI #11374281

Incident: August 1, 2020 · Filed: November 12, 2020

TL* THE CONTACT OWNS A 2020 CADILLAC CT6. THE CONTACT STATED THAT WHILE DEPRESSING THE BRAKE PEDAL, THERE WAS A LOUD SCREECHING SOUND COMING FROM THE WHEELS. THE VEHICLE WAS TAKEN TO WOODLAND CADILLAC LOCATED AT 530 QUALITY CIR #101, WOODLAND, CA 95776, TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE FRONT RADIAL ARMS WERE FAULTY AND NEEDED TO BE REPLACED. THE RADIAL ARMS WERE REPLACED HOWEVER, THE FAILURE PERSISTED. THE CONTACT INDICATED THAT THERE WAS A BLACK GREASY MATERIAL COMING FROM THE BRAKES AND COVERED THE WHEELS. THE CAUSE OF THE FAILURE WAS DETERMINED IT WAS THE BRAKE SHIELDS . THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 100.*DT*JB*DT*JB

Other Cadillac CT6 model years

Check your 2020 Cadillac CT6 VIN

Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your Cadillac CT6 at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.

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