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2020 Cadillac CT6

Gas

Large Cars
2 EPA-rated configurations
Data refreshed 2026-09-11

Safety Signal

84 / 100 from the NHTSA recall record

RecallsNHTSA campaigns2

Complaintsowner reports to NHTSA11

Crash ratingNHTSA overall—

Fuel economybest combined, EPA21 mpg

2020 2019 2018 2017 2016

The 2020 Cadillac CT6 is sold in the U.S. as a gas large car with 2 EPA-rated configurations. The most efficient version, the CT6 AWD, is EPA-rated at 21 mpg combined. NHTSA lists 2 recall campaigns for this model year, which gives it a Safety Signal grade of B. Owners have filed 11 complaints, most often about the power train.

Specs & fuel economy

Source: EPA fueleconomy.gov

Configuration	Powertrain	Drive	Engine / motor	City	Hwy	Comb	Annual fuel*
CT6 AWD	Gas	AWD	3.6L 6-cyl	18	27	21	$2,950
CT6 AWD	Gas	AWD	4.2L 8-cyl turbo	14	25	17	$4,550

*EPA estimate at 15,000 miles/year at EPA reference fuel and electricity prices. fueleconomy.gov record ids: 41744, 42378.

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Recalls (2)

Source: NHTSA recall database

▲high

Power Train

N242480630

90,081 vehicles

ProblemGeneral 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.RiskWheel lock-up while driving increases the risk of a crash.FixDealers 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 25V148000reported Mar 6, 2025General Motors, LLC

▲high

Tires

N192279200

81 vehicles

ProblemGeneral 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."RiskDrivers 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.FixGM 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 19V731000reported Oct 15, 2019General Motors LLC

Owner complaints

Source: NHTSA complaint database

11complaints filed

1 involved a crash · 0 a fire · 0 injuries · 0 deaths reported

Filed per year: 2020: 3 · 2021: 1 · 2025: 7

Most-cited components

Power Train6

Service Brakes3

Forward Collision Avoidance3

Suspension1

Unspecified1

Structure1

What owners describe

“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 w…”Sep 30, 2025 · Wheels · NHTSA owner report

“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 vehicl…”Jul 15, 2025 · Power Train · NHTSA owner report

“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 light…”Jun 17, 2025 · Power Train · NHTSA owner report

Complaint counts are raw owner reports to NHTSA, not verified defects, and scale with how many were sold. Use them to spot patterns, not to rank.

Crash ratings

Source: NHTSA NCAP

NHTSA has not published 5-Star crash ratings for this model year.

Other CT6 model years

2019 Cadillac CT6

4 recalls · 16 complaints

2018 Cadillac CT6

2 recalls · 12 complaints

2017 Cadillac CT6

2 recalls · 26 complaints

2016 Cadillac CT6

3 recalls · 11 complaints

Sources & method

Safety Signal starts every model-year at 100 and subtracts points per open NHTSA recall campaign by severity: critical 15 (fire risk, park-outside or do-not-drive advisories), high 8 (brakes, steering, airbags, loss of drive power, structure, battery), moderate 6, minor 3 (software, labels, lighting fixed by an update). Floor 35. A ≥ 90, B ≥ 80, C ≥ 70, D ≥ 60, otherwise F. Complaint counts and NHTSA crash ratings are shown separately and are not blended into the grade.

EPA figures come from fueleconomy.gov vehicle records. Recalls, complaints, investigations and crash ratings come from NHTSA's public flat files, refreshed weekly.

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