2020 Cadillac CT6: recalls, fuel economy and safety ratings
EPA rates the 2020 Cadillac CT6 at 17–21 mpg combined across 2 versions. NHTSA lists 2 safety recalls and 11 owner complaints for this model year.
Safety recalls
2
EPA combined mpg
17–21
NHTSA overall rating
—
Recall file dated Oct 27, 2026 · EPA file dated Sep 29, 2026 · updated Oct 27, 2026, 7:34 AM EDT
Check your own car: enter your 17-character VIN at nhtsa.gov/recalls to see open recalls for that exact vehicle, and contact a Cadillac dealer to schedule the repair — safety recall repairs are free. The list below covers the whole model year, so not every recall applies to every car.
2020 Cadillac CT6 recalls
NHTSA's recall file lists 2 safety recalls for the 2020 Cadillac CT6, newest first.
Power train: Automatic transmission
NHTSA 25V148000Reported Mar 6, 2025
Filed by
General Motors, LLC (manufacturer recall no. N242480630)
Units affected
90,081 (estimate)
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.
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, LLC (manufacturer recall no. N192279200)
Units affected
81 (estimate)
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.
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.
Recall summaries are written by NHTSA from manufacturers' defect reports. Dates are when NHTSA received the report.
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2020 Cadillac CT6 fuel economy by version
EPA city/highway/combined estimates for each engine, transmission and drive combination. Annual fuel cost is EPA's estimate for 15,000 miles a year (55% city, 45% highway) at EPA's current fuel-price assumptions; your cost will vary.
Source: FuelEconomy.gov (U.S. DOE and EPA), file dated Sep 29, 2026. Each version links to its FuelEconomy.gov record.
EPA estimates come from standardized lab tests so cars can be compared fairly; real-world mileage depends on speed, weather, load, tires and driving style.
2020 Cadillac CT6 crash-test ratings
NHTSA 5-Star Safety Ratings for the tested versions. More stars mean a lower chance of serious injury in that type of crash. Rollover risk is NHTSA's estimated chance of rolling over in a single-vehicle crash.
2020 Cadillac CT6 NHTSA 5-Star Safety Ratings
Tested vehicle
Overall
Frontal
Side
Rollover
Rollover risk
Forward collision warning
2020 Cadillac CT6 4 DR AWD
Not rated
Not rated
Not rated
Not rated
—
Standard
2020 Cadillac CT6-V 4 DR AWD
Not rated
Not rated
Not rated
Not rated
—
Standard
Source: NHTSA 5-Star Safety Ratings (New Car Assessment Program), checked Oct 26, 2026.
Star ratings compare vehicles of similar size and weight; a frontal rating for a large pickup is not directly comparable with one for a small car.
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2020 Cadillac CT6 owner complaints
Owners have filed 11 complaints with NHTSA about the 2020 Cadillac CT6, most recently on Sep 30, 2025. 1 mention a crash, 0 a fire, 0 injured people and 0 deaths. These are unverified reports; a complaint is not proof of a defect.
Most-cited components in 2020 Cadillac CT6 complaints
Component named in complaints
Mentions
Power train
6
Service brakes
3
Forward collision avoidance: Adaptive cruise control
