RoadVitals

2020 Cadillac CT6

Recalls, owner-reported complaints, investigations and safety data

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
11
Latest Sep 30, 2025
Safety recallsA safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.
2
Latest Mar 6, 2025
InvestigationsNHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
0
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
1

Overview

Our database contains 11 NHTSA owner-reported complaints for the 2020 Cadillac CT6, most frequently naming the powertrain (other), brakes and driver assistance categories. 2 safety recalls have been issued covering this model year; and 751 manufacturer communications are on file.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

What owners report

Complaints grouped by the component NHTSA recorded

  • Powertrain (other)642.9%
  • Brakes321.4%
  • Driver assistance214.3%
  • Body & structure17.1%
  • Other / unspecified17.1%
  • Suspension17.1%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Safety recalls

2 campaigns cover this model year

Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.

Check a VIN on NHTSA.gov
25V148000

POWER TRAIN:AUTOMATIC TRANSMISSION

Mar 6, 2025
90,081 units potentially affected
The defect: 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.
The risk: Wheel lock-up while driving increases the risk of a crash.
The 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.
General Motors, LLCManufacturer number N242480630View on NHTSA.gov
19V731000

TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS

Oct 15, 2019
81 units potentially affected
The defect: 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."
The 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.
The 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.
General Motors LLCManufacturer number N192279200View on NHTSA.gov

Recent owner complaints

Reports submitted to NHTSA, shown in the owner's own words

View all 11
Other / unspecifiedPowertrain (other)
Filed Sep 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.

NHTSA ID
11690488
Incident
Jun 30, 2025
Powertrain (other)
Filed Jul 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.

NHTSA ID
11673799
Incident
May 15, 2024
Mileage
98,000 mi
Powertrain (other)
Filed Jun 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.

NHTSA ID
11667446
Incident
Dec 17, 2024
Powertrain (other)
Filed Jun 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.

NHTSA ID
11666008
Incident
Mar 6, 2025
Mileage
64,000 mi
Powertrain (other)
Filed May 22, 2025

See attached document for complaint.

NHTSA ID
11662581
Incident
Apr 24, 2025
Powertrain (other)
Filed Apr 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.

NHTSA ID
11654171
Incident
Feb 15, 2025
Body & structure
Filed Feb 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

NHTSA ID
11644679
Incident
Feb 20, 2025
Driver assistance
Filed Feb 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.

NHTSA ID
11396890
Incident
Dec 16, 2020
Mileage
8,900 mi

Manufacturer communications

A bulletin sent by a manufacturer to its dealers. Not a recall, and repairs are not necessarily free.

PIT5099J

PI to help diagnose A/C concern

PIT3271Q

This preliminary information communicates information about how to determine if a wheel and tires size change is available.

PIP4902V

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

PIP6104

This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.

PIT6425D

This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC'ss

PIT6425C

This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's

Manufacturers file copies of the bulletins they send to dealers with NHTSA. These often describe diagnostic or repair procedures for a known condition. They are not recalls: repairs described in a bulletin are usually only free if the vehicle is still under warranty or the manufacturer has extended coverage.

Compare model years

Complaint and recall counts across every year of this model

Cadillac CT6 by model year
YearComplaintsRecallsInvestigationsIssue Index
2021000—
2020Viewing112050.4
2019164051.5
2018900—
2017171043.9
2016113063.0
2015000—
2014000—
2013000—

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers. Older model years have had longer for reports to accumulate.