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2021 Cadillac CT4 recalls, complaints and safety ratings

There are 4 US recalls for the 2021 Cadillac CT4, and 5 in Canada. Owners filed 7 complaints with NHTSA, most often about engine.

4US recalls
0urgent recalls
7owner complaints
–overall crash rating

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Check by VIN to confirm the exact model and see every recall for it.

Recalls are issued for a make, model and model year. Whether the repair has already been done on one specific car is known only to its manufacturer and dealers. Check your vehicle's official status at nhtsa.gov/recalls or with a dealer.

US recalls (4)

Power train: automatic transmission

2025-03-06 · campaign 25V148000 · 90,081 vehicles

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 and remedy

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.

Over-the-air fix

Exterior lighting: lighting control module, software

2022-12-08 · campaign 22V903000 · 740,108 vehicles

General Motors, LLC (GM) is recalling certain 2020-2023 Cadillac CT4 and CT5; 2021-2023 Buick Envision; and 2022-2023 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles. The daytime running lights (DRLs) may not deactivate when the headlights are on. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."

Risk and remedy

Risk: DRLs that do not deactivate as intended may result in a glare, reducing visibility, and increasing the risk of a crash.

Remedy: The body control module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed January 23, 2023. Owners may contact GMC customer service at 1-888-988-7267, Chevrolet customer service at 1-800-222-1020, or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N222386380. This recall expands previous recall number 22V-827.

Air bags: side/window, curtain

2021-08-05 · campaign 21V611000 · 34,157 vehicles

General Motors, LLC. (GM) is recalling certain 2020-2022 Cadillac CT4 and CT5 vehicles. The roof rail side-curtain air bags may not have been installed correctly, which could result in an improper air bag deployment during a crash.

Risk and remedy

Risk: Air bags that do not deploy properly can increase the risk of injury in a crash.

Remedy: Dealers will inspect both left and right-side roof rail air bags and reinstall the air bags, as necessary, free of charge. Owner notification letters were mailed on August 30, 2021. Owners may contact Cadillac customer service at 1-800-458-8006. GM's number for this recall is N212342780.

Over-the-air fix

Air bags: srs malfunction warning lamp/light

2021-06-10 · campaign 21V421000 · 285,622 vehicles

General Motors, LLC (GM) is recalling certain 2021 Buick Envision, Cadillac CT4, CT5, Escalade, Escalade ESV, Chevrolet Tahoe, Corvette, Suburban, GMC Yukon, Yukon XL vehicles. The communications gateway module incorrectly processes a loss of communication with the sensing diagnostic module (SDM), causing the air bag malfunction indicator light to inconsistently illuminate.

Risk and remedy

Risk: The air bag malfunction indicator light may fail to warn the driver of a problem with the air bag, increasing the risk of injury.

Remedy: The communications gateway module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed on July 1, 2021. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is N212338110.

Canadian recalls (5)

Show 5 Canadian recalls

Powertrain

2025-03-06 · campaign 2025-118

Issue: Over time, the transmission control valve could wear and lose pressure. If this happens, the transmission could shift harshly and could cause the wheels to lock up. Note: This recall only affects vehicles equipped with a 10-speed automatic transmission. Safety Risk: Wheels that lock suddenly could cause a loss of control and increase the risk of a crash. Corrective Actions: General Motors will notify owners by mail and advise you to take your vehicle to a dealership to update the transmission control module software to detect excess wear in advance of a wheel lock up. If detected, a service engine light would turn on, a message would display in the instrument panel and the vehicle would be limited to fifth gear.

Lights and instruments

2024-02-01 · campaign 2024-060

Issue: On certain vehicles, a software problem could cause the lower beam headlamps not to turn on as it becomes dark outside if the multi-function switch is in the "OFF" or "PARKING LAMP" position. This could also cause the daytime running lamps (DRLs) to turn off when the vehicle is moving. As a result, the vehicles may not meet certain requirements of Canadian regulations. Safety Risk: Headlamps and/or DRLs that don't turn on could reduce visibility, make the vehicle less visible to others and increase the risk of a crash. Corrective Actions: General Motors will notify owners by mail and advise you to take your vehicle to a dealership to update the body control module (BCM)software.

Lights and instruments

2022-12-08 · campaign 2022-700

Issue: On certain vehicles, the daytime running lamps (DRLs) may stay on when the headlamps are on. Canadian regulations require the DRLs to turn off when the headlamps are on. Safety Risk: Daytime running lamps that stay on could cause glare for oncoming drivers and increase the risk of a crash. Corrective Action: General Motors will notify owners by mail and instruct you to take your vehicle to a dealership to update the body control module (BCM) software.

Airbag

2021-08-05 · campaign 2021-488

Issue: On certain vehicles, the roof-rail airbags may not have been installed correctly. As a result, the airbags may not inflate properly in a crash. Safety Risk: A roof-rail airbag that does not inflate properly could create an increased risk of injury in a crash. Corrective Actions: General Motors will notify owners by mail and instruct you to take your vehicle to a dealer to inspect the roof-rail airbags. If necessary, they will be reinstalled correctly.

Over-the-air fix

Airbag

2021-06-03 · campaign 2021-348

Issue: On certain vehicles, a software problem could cause the airbag warning light not to turn on when there is a fault in the airbag system. As a result, a driver might not be alerted of the problem and the airbags may not work properly in a crash. Safety Risk: An airbag system that does not work properly could create an increased risk of injury in a crash. Corrective Actions: General Motors will notify owners by mail and send a wireless over-the-air software update to each vehicle. Alternatively, you may schedule an appointment to have the update performed by a dealer.

Owner complaints (7)

Owners filed 7 complaints with NHTSA about the 2021 Cadillac CT4. Among 7 model years of this model, it ranks #2 for the most complaints (median 6).

Most-reported problemComplaints
Engine3
Fuel/propulsion system2
Tires1
Forward collision avoidance1
Electrical system1
Steering1
Suspension1
Power train1

Crash test ratings

NHTSA 5-Star Safety Ratings for the 2021 Cadillac CT4.

VersionOverallFrontalSideRollover
2021 Cadillac CT4 4 DR RWD––––
2021 Cadillac CT4 4 DR AWD––––

Fuel economy

EPA ratings for each 2021 Cadillac CT4 version.

VersionCity MPGHighway MPGCombinedYearly fuel cost
CT4 2.0 L Automatic (S8)233427$3,050
CT4 2.7 L Automatic (S10)213125$3,300
CT4 AWD 2.0 L Automatic (S8)233226$3,150
CT4 AWD 2.7 L Automatic (S10)212924$3,400
CT4 V 2.7 L Automatic (S10)202923$3,550
CT4 V AWD 2.7 L Automatic (S10)202823$3,550
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Sources: NHTSA recalls, complaints and 5-Star Safety Ratings, US EPA fuel economy and Transport Canada's Vehicle Recalls Database (contains information licensed under the Open Government Licence – Canada). Recalls updated 2026-10-30.