Every 2020 Cadillac CT4 recall
Each campaign as NHTSA published it: what is wrong, what can happen, and the fix. Newest first.
Power Train · NHTSA 25V148000
Jun 3, 2025Power Train:Automatic Transmission
- 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.
- Fix
- 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.
Full recall details for 25V148000 →Exterior Lighting · NHTSA 22V903000
Aug 12, 2022Exterior Lighting:Lighting Control Module:SoftwareOver-the-air fix
- Problem
- 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
- DRLs that do not deactivate as intended may result in a glare, reducing visibility, and increasing the risk of a crash.
- Fix
- 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.
Full recall details for 22V903000 →Air Bags · NHTSA 21V611000
May 8, 2021Air Bags:Side/Window:Curtain
- Problem
- 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
- Air bags that do not deploy properly can increase the risk of injury in a crash.
- Fix
- 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.
Full recall details for 21V611000 →Service Brakes · NHTSA 20V588000
Sep 24, 2020Service Brakes
- Problem
- General Motors LLC (GM) is recalling certain 2020 Chevrolet Corvette and Cadillac CT4, CT5 and XT4, 2021 Chevrolet Trailblazer, and 2020-2021 Buick Encore GX vehicles. Sensor connection contamination in the electronic brake boost system may cause an interruption of communication between the sensor and the brake boost system.
- Risk
- If communication with the sensor is interrupted, the electronic brake boost assist could be lost. Extra pedal force will be required to slow and stop the vehicle, increasing the risk of a crash.
- Fix
- GM will notify owners, and dealers will replace the electronic brake boost module, free of charge. The recall began December 9, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-333-4223, or Buick customer service at 1-800-521-7300. GM's number for this recall is A202307260.
Full recall details for 20V588000 →
2020 Cadillac CT4 complaints and service bulletins
Owners filed 8 complaints with NHTSA about the 2020 Cadillac CT4. Cadillac has issued at least 888 technical service bulletins (repair instructions to dealers) for this model year. Complaints are unverified owner reports; a recall is the manufacturer’s admission of a safety defect.
Most-reported components
- Engine3
- Power Train2
- Service Brakes2
- Air Bags1
- Fuel/Propulsion System1
- Unknown Or Other1
Service bulletins by component
- Equipment (245)
- Electrical System (229)
- Unknown Or Other (139)
- Power Train (115)
- Engine and Engine Cooling (113)
- Engine (72)
Read Cadillac CT4 owner complaints and bulletins, every year
NHTSA defect investigations covering the 2020 Cadillac CT4
NHTSA’s Office of Defects Investigation lists this model year in one investigation. An investigation is not a recall; it is how NHTSA decides whether one is needed.
What people reported
Owners have filed 8 complaints with NHTSA about the 2020 Cadillac CT4. A few in their own words, shortened. Complaints are unverified and are not proof of a defect or of any recall.
“Total brake system failure. Lost almost all brake function nearly causing an accident. June 17, 2026 car was taken to dealership. Electronic Brake Control Module (EBCM), Brake Master Cylinder, Brake Pedal Retainer replacement required.”
2020 CADILLAC CT4Aug 26, 2026 · CO
Complaint filed with NHTSA, not verified by the agency · NHTSA complaint 11759859
“69,000 mile oil change I was told i needed to spend thousands of dollars on repairing an oil leak b/c my Cam carrier is leaking. Cadillac has a know issue with this repair and refuses to stand behind it's product. Numerous complaints already on forums and yet they charge thousands to fix.”
2020 CADILLAC CT4Aug 25, 2026 · NJ
Complaint filed with NHTSA, not verified by the agency · NHTSA complaint 11759557
“I had two incidents with the Cadillac CT-4 in February and then again in April of 2026 of driving on I-75 at a highway speed of about 70 MPH when the vehicle suddenly downshifted and the engine revving at at very high RPM.”
2020 CADILLAC CT4Jul 23, 2026 · FL
Complaint filed with NHTSA, not verified by the agency · NHTSA complaint 11752429
“The electronic brake control module, break retainer, brake master cylinder and brake valve all failed. I was driving to lunch and coming down a hill when multiple warning lights turned on as I pressed the brakes.”
2020 CADILLAC CT4Jun 23, 2026 · CO
Complaint filed with NHTSA, not verified by the agency · NHTSA complaint 11745985
“The vehicle shudders and loses power when accelerating fast. My wife almost got hit when she pulled out in traffic the car stalled out. It is due to the cylinder deactivation (afm).”
2020 CADILLAC CT4Jun 8, 2026 · AL
Complaint filed with NHTSA, not verified by the agency · NHTSA complaint 11742821
Check your CT4 by VIN
Not every 2020 Cadillac CT4 is in every recall. Enter your 17-character VIN to see the recalls on record for your exact vehicle, then confirm which are still open at NHTSA.gov or with any Cadillac dealer.
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