VehicleVerdict

2020 Cadillac CT6 problems

Verdict · NHTSA data

Limited data — recalls on file

NHTSA has just 16 complaints on file for the 2020 Cadillac CT6 — too few to judge reliability from owner reports alone — but 2 recall campaigns apply to this year, so any used example should have its VIN checked for completed recall work.

16

NHTSA complaints

2

Recalls

0

Investigations

2

Crash-involved

0

Fires reported

0

Injuries

0

Deaths

—

NCAP overall

How does 2020 compare to other CT6 years?

CT6 NHTSA complaints by model year, 2020 highlighted28 complaints2016: 15 complaints2017: 28 complaints2018: 14 complaints2019: 17 complaints2020: 16 complaints
CT6 NHTSA complaints by model year, 2020 highlighted. Red bars are years to avoid.

See all CT6 years to avoid →

What are the most common 2020 Cadillac CT6 problems?

ComponentComplaintsShare
Transmission638%
Driver Assistance319%
Brakes319%
Tires & Wheels16%
Body & Structure16%
Other16%
Suspension16%

Does the 2020 Cadillac CT6 have recalls?

2 NHTSA recall campaigns on file. Recall repairs are free at franchised dealers.

25V148000TransmissionMarch 6, 2025 · 90,081 units

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.

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.

19V731000Tires & WheelsOctober 15, 2019 · 81 units

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."

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.

Consumer complaints filed with NHTSA

Representative excerpts, cleaned of personal information. These are consumer statements, not verified defects.

“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…”

Complaint filed with NHTSA · Transmission · February 15, 2025

“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…”

Complaint filed with NHTSA · Brakes · November 13, 2020 · crash

“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…”

Complaint filed with NHTSA · Driver Assistance · November 13, 2020 · crash

“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…”

Complaint filed with NHTSA · Other · December 16, 2020

“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…”

Complaint filed with NHTSA · Tires & Wheels · June 30, 2025

2020 Cadillac CT6 — common questions

Is the 2020 Cadillac CT6 reliable?

The record is thin — 16 NHTSA complaints — so owner-report data can't strongly confirm reliability either way, though 2 recalls should be verified as completed.

What are the most common 2020 CT6 problems?

According to NHTSA complaint data, the leading problem areas are transmission (6 complaints), driver assistance (3 complaints), brakes (3 complaints).

Does the 2020 Cadillac CT6 have recalls?

Yes — NHTSA lists 2 recall campaigns affecting the 2020 Cadillac CT6. Recall repairs are free at franchised dealers; check the VIN at nhtsa.gov/recalls to confirm the work was done.

Related

Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.

Compiled by Sharon Ben-Moshe, Founder.