{"id":"2021_cadillac_ct4","make":"Cadillac","make_slug":"cadillac","model":"CT4","model_slug":"ct4","year":2021,"url":"/cadillac/ct4/2021/","pts":["gas"],"configs":[{"id":43240,"model":"CT4","pt":"gas","drive":"Rear-Wheel Drive","trany":"Automatic (S8)","cyl":4,"displ":2.0,"eng":"SIDI","turbo":true,"super":false,"start_stop":true,"city":23,"hwy":34,"comb":27,"cityA":0,"hwyA":0,"combA":0,"kwh100":null,"range":null,"range_city":null,"range_hwy":null,"erange":null,"phev_comb":null,"charge240":null,"charge240b":null,"charger":"","charger_b":"","motor":"","fuel":"Premium","vclass":"Compact Cars","co2":327,"fe_score":6,"ghg_score":6,"fuel_cost":2850,"save_spend":-3000,"guzzler":false,"mfr_code":"GMX","modified":"Mon Apr 12 00:00:00 EDT 2021"},{"id":43241,"model":"CT4 AWD","pt":"gas","drive":"All-Wheel Drive","trany":"Automatic (S8)","cyl":4,"displ":2.0,"eng":"SIDI","turbo":true,"super":false,"start_stop":true,"city":23,"hwy":32,"comb":26,"cityA":0,"hwyA":0,"combA":0,"kwh100":null,"range":null,"range_city":null,"range_hwy":null,"erange":null,"phev_comb":null,"charge240":null,"charge240b":null,"charger":"","charger_b":"","motor":"","fuel":"Premium","vclass":"Compact Cars","co2":343,"fe_score":5,"ghg_score":5,"fuel_cost":3000,"save_spend":-3750,"guzzler":false,"mfr_code":"GMX","modified":"Mon Apr 12 00:00:00 EDT 2021"},{"id":43149,"model":"CT4","pt":"gas","drive":"Rear-Wheel Drive","trany":"Automatic (S10)","cyl":4,"displ":2.7,"eng":"SIDI","turbo":true,"super":false,"start_stop":true,"city":21,"hwy":31,"comb":25,"cityA":0,"hwyA":0,"combA":0,"kwh100":null,"range":null,"range_city":null,"range_hwy":null,"erange":null,"phev_comb":null,"charge240":null,"charge240b":null,"charger":"","charger_b":"","motor":"","fuel":"Premium","vclass":"Compact Cars","co2":356,"fe_score":5,"ghg_score":5,"fuel_cost":3100,"save_spend":-4250,"guzzler":false,"mfr_code":"GMX","modified":"Mon Apr 12 00:00:00 EDT 2021"},{"id":43151,"model":"CT4 AWD","pt":"gas","drive":"All-Wheel Drive","trany":"Automatic (S10)","cyl":4,"displ":2.7,"eng":"SIDI","turbo":true,"super":false,"start_stop":true,"city":21,"hwy":29,"comb":24,"cityA":0,"hwyA":0,"combA":0,"kwh100":null,"range":null,"range_city":null,"range_hwy":null,"erange":null,"phev_comb":null,"charge240":null,"charge240b":null,"charger":"","charger_b":"","motor":"","fuel":"Premium","vclass":"Compact Cars","co2":374,"fe_score":5,"ghg_score":5,"fuel_cost":3250,"save_spend":-5000,"guzzler":false,"mfr_code":"GMX","modified":"Mon Apr 12 00:00:00 EDT 2021"},{"id":43150,"model":"CT4 V","pt":"gas","drive":"Rear-Wheel Drive","trany":"Automatic (S10)","cyl":4,"displ":2.7,"eng":"SIDI","turbo":true,"super":false,"start_stop":true,"city":20,"hwy":29,"comb":23,"cityA":0,"hwyA":0,"combA":0,"kwh100":null,"range":null,"range_city":null,"range_hwy":null,"erange":null,"phev_comb":null,"charge240":null,"charge240b":null,"charger":"","charger_b":"","motor":"","fuel":"Premium","vclass":"Compact Cars","co2":384,"fe_score":5,"ghg_score":5,"fuel_cost":3350,"save_spend":-5500,"guzzler":false,"mfr_code":"GMX","modified":"Mon Apr 12 00:00:00 EDT 2021"},{"id":43152,"model":"CT4 V AWD","pt":"gas","drive":"All-Wheel Drive","trany":"Automatic (S10)","cyl":4,"displ":2.7,"eng":"SIDI","turbo":true,"super":false,"start_stop":true,"city":20,"hwy":28,"comb":23,"cityA":0,"hwyA":0,"combA":0,"kwh100":null,"range":null,"range_city":null,"range_hwy":null,"erange":null,"phev_comb":null,"charge240":null,"charge240b":null,"charger":"","charger_b":"","motor":"","fuel":"Premium","vclass":"Compact Cars","co2":385,"fe_score":5,"ghg_score":5,"fuel_cost":3350,"save_spend":-5500,"guzzler":false,"mfr_code":"GMX","modified":"Mon Apr 12 00:00:00 EDT 2021"}],"vclass":"Compact Cars","segment":"Compact car","epa_certified":true,"recalls":[{"campaign":"25V148000","component":"POWER TRAIN:AUTOMATIC TRANSMISSION","mfr":"General Motors, LLC","reported":"2025-03-06","owner_notified":"2025-04-07","units":90081,"summary":"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.","notes":"Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 888-327-4236 (TTY 888-275-9171) or go to nhtsa.gov.","park_outside":false,"do_not_drive":false,"mfr_campaign":"N242480630","initiated_by":"MFR","variants":[],"severity":"high"},{"campaign":"22V903000","component":"EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE","mfr":"General Motors, LLC","reported":"2022-12-08","owner_notified":"2023-01-23","units":740108,"summary":"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.\"","consequence":"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.","notes":"Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.","park_outside":false,"do_not_drive":false,"mfr_campaign":"N222386380","initiated_by":"MFR","variants":[],"severity":"minor"},{"campaign":"21V611000","component":"AIR BAGS","mfr":"General Motors, LLC","reported":"2021-08-05","owner_notified":"2021-08-30","units":34157,"summary":"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.","consequence":"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.","notes":"Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.","park_outside":false,"do_not_drive":false,"mfr_campaign":"N212342780","initiated_by":"MFR","variants":[],"severity":"high"},{"campaign":"21V421000","component":"ELECTRICAL SYSTEM:SOFTWARE","mfr":"General Motors, LLC","reported":"2021-06-10","owner_notified":"2021-07-01","units":285622,"summary":"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.","consequence":"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.","notes":"Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.","park_outside":false,"do_not_drive":false,"mfr_campaign":"N212338110","initiated_by":"MFR","variants":[],"severity":"minor"}],"recall_count":4,"critical_count":0,"park_outside":false,"do_not_drive":false,"score":78,"grade":"C","complaints":{"count":7,"crash":0,"fire":0,"injured":0,"deaths":0,"comps":[["Engine",3],["Fuel/Propulsion System",2],["Tires",1],["Steering",1],["Electrical System",1],["Forward Collision Avoidance",1]],"by_year":{"2022":1,"2024":2,"2025":2,"2026":2},"excerpts":[["2026-06-29","Fuel/Propulsion System","While driving at highway speeds on the freeway in my 2021 Cadillac CT4-V, the vehicle experienced a sudden, catastrophic loss of propulsion. Without warning, the transmission dropped out of gear as if it were in neutral. I completely lost the ability to accelerate, creating an immediate, life-threatening hazard as I wa\u2026"],["2026-05-31","Fuel/Propulsion System","Check engine light for P1467 on a 2021 CT4 V. This is for a \"purge pump underspeed\" issue. The issue is known on CT4 Cadillacs and has an active recall out: N242441120 Evaporative Emissions Purge Pump. This recall is only for the 2.0, LSY engines, but the much more uncommon 2.7, L3B engine in my car uses the same part \u2026"],["2025-08-27","Power Train","There is a known issue with hesitation and hard shifting on my vehicle. According to the gm bulletin that was released I believe in may of 25 my year, make and model has a known issue where the transmission control valve may stick or wear causing jerking and shifting issues and could cause a possible crash. According t\u2026"]]},"investigations":[{"action":"PE21010","component":"AIR BAGS:SRS MALFUNCTION WARNING LAMP/LIGHT","opened":"2021-04-09","closed":"2023-08-24","campaign":"","subject":"Air Bag Malfunction","summary":"On April 9, 2021, the Office of Defects Investigations (ODI) opened PE21-010 to investigate instances of air bag malfunction indicator light (MIL) illumination and potential for frontal air bag non-deployment in several vehicles manufactured by General Motors (GM). The vehicles included model year (MY) 2020 through 2021 CT4 and CT5 passenger cars, Sierra and Silverado trucks (1500/2500/3500 models), XT4 and MY 2021 Escalade, Suburban, Tahoe, Yukon SUVs.Technical Service Bulletin (TSB) 21-NA-005, issued in March 2021, addresses air bag MIL illumination with diagnostic trouble codes (DTCs) B0001-1B or B0012-0D. It cites rust particles in the connection terminal interface of the driver air bag "}],"ncap":[],"popularity":999,"headline":{"range":null,"mpg":27,"ncap":null,"complaints":7},"presskit_trims":[],"generated_at":"2026-09-11 06:27 UTC","sources":["EPA fueleconomy.gov","NHTSA recalls","NHTSA complaints","NHTSA NCAP","NHTSA investigations"]}