2020 Cadillac CT6: complaints, problems and recalls
Explore the records behind recurring owner reports.
Key facts
11 owner complaints analyzed
2 distinct recall campaigns
12,100 mi median reported failure mileage
Scope: 2020 model year. Data snapshot: . 6 complaints include usable failure mileage.
Most common problems
Power Train is the most frequently named component, appearing in 6 of 11 complaints (54.5%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Transmission and shifting | 4 | 36.4% |
| Braking behavior | 3 | 27.3% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Power Train | 6 |
| Service Brakes | 3 |
| Forward Collision Avoidance: Adaptive Cruise Control | 1 |
| Forward Collision Avoidance: Automatic Emergency Braking | 1 |
| Forward Collision Avoidance: Warnings | 1 |
| Structure:Body | 1 |
| Suspension | 1 |
| Unknown Or Other | 1 |
Power Train: 6; Service Brakes: 3; Forward Collision Avoidance: Adaptive Cruise Control: 1; Forward Collision Avoidance: Automatic Emergency Braking: 1; Forward Collision Avoidance: Warnings: 1; Structure:Body: 1; Suspension: 1; Unknown Or Other: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 4 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 1 |
| 75,000 to 99,999 | 1 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 4; 25,000 to 49,999: 0; 50,000 to 74,999: 1; 75,000 to 99,999: 1; 100,000 to 149,999: 0; 150,000 and above: 0
Under 25,000 miles has the most reports with usable mileage (4). 5 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2020 | 3 |
| 2021 | 1 |
| 2025 | 7 |
2020: 3; 2021: 1; 2025: 7
Pattern summary
Power Train leads the component reports. Transmission and shifting appears in 4 complaint narratives. Braking behavior appears in 3 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Examples from the source records
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11343046 · 2020-08-03 (August 3, 2020)
CAR WAS ACQUIRED IN FEBRUARY AND SCRAPING NOISE IN FRONT BRAKES WAS NOTICED IN MAY. WAITED TO SEE IF THE NOISE WOULD GO AWAY BY ITSELF BUT BECAME LOUDER AND TOOK TO CADILLAC DEALER, MILLER CADILLAC IN ELLICOTT CITY MD TELEPHONE [phone removed] ON JULY 30. I WAS TOLD THE MECHANIC COULD HEAR THE NOISE BUT COULD NOT IDENTIFY THE SOURCE. HE CALLED GM AND THEY TOLD HIM THERE WAS TECH BULLETIN #PIC6290C INSTRUCTING THE MECHANIC TO TELL CUSTOMER THE NOISE IS NORMAL DOES NOT AFFECT SAFETY OR RELIABILITY OF THE CAR BUT WOULD NOT TELL THE MECHANIC THE CA…
Owner-reported narrative. 900 miles reported. Look up ODI 11343046 at NHTSA ↗
Owner report 11374281 · 2020-11-12 (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 F…
Owner-reported narrative. 100 miles reported. Look up ODI 11374281 at NHTSA ↗
Owner report 11374732 · 2020-11-15 (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 HAV…
Owner-reported narrative. 15,300 miles reported. Look up ODI 11374732 at NHTSA ↗
Owner report 11396890 · 2021-02-19 (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.
Owner-reported narrative. 8,900 miles reported. Look up ODI 11396890 at NHTSA ↗
Owner report 11644679 · 2025-02-24 (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
Owner-reported narrative. Look up ODI 11644679 at NHTSA ↗
Owner report 11654171 · 2025-04-11 (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.
Owner-reported narrative. Look up ODI 11654171 at NHTSA ↗
Owner report 11662581 · 2025-05-22 (May 22, 2025)
See attached document for complaint.
Owner-reported narrative. Look up ODI 11662581 at NHTSA ↗
Owner report 11666008 · 2025-06-10 (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.
Owner-reported narrative. 64,000 miles reported. Look up ODI 11666008 at NHTSA ↗
Recall history
2 distinct campaigns affect this selection. Announcement dates below are different from vehicle model years. A campaign may cover multiple years.
19V731000 · Tires:Pressure Monitoring And Regulating Systems
Reported: 2019-10-15 (October 15, 2019)
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."
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.
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.
NHTSA campaign record ↗25V148000 · Power Train:Automatic Transmission
Reported: 2025-03-06 (March 6, 2025)
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.
Consequence: Wheel lock-up while driving increases the risk of a crash.
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.
NHTSA campaign record ↗