NHTSA lists 7 complaints for the 2021 Cadillac CT4, 0 of them mention a crash and 0 mention a fire. 0 complaints mention an injury, with 0 injuries and 0 deaths reported.
Data build 2026-10-09.
NHTSA lists this vehicle as CADILLAC CT4.
Model-generated complaint tags
These labels are model-generated, not NHTSA data.
Failure modes| Label | Count | Share of tagged | Mean confidence |
|---|
| mechanical failure | 5 | 71.4% | 0.84 |
|---|
| loss of control | 1 | 14.3% | 0.77 |
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| unclear | 1 | 14.3% | 0.96 |
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Severities| Label | Count | Share of tagged | Mean confidence |
|---|
| low | 3 | 42.9% | 0.89 |
|---|
| moderate | 3 | 42.9% | 0.84 |
|---|
| none | 1 | 14.3% | 0.66 |
|---|
Model: typesafe/jev-1.13-20260917; schema version: tag-v1. 7 tagged complaints of 7 complaints (100.0%).
Confidence is the model's own probability for the label it chose (0 to 1), not accuracy.
Model-generated labels on tagged complaints only. Model years 2013 and newer are tagged in full; 2012 in part (see tagged_share); earlier model years have no tags. NHTSA's own flags remain separate in the complaints block.
Recalls
See new recalls and investigations this week.
4 recalls.
Date: 2025-03-06. Systems: POWER TRAIN.
Defect: 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.
Do not drive: No. Park outside: No.
Date: 2022-12-08. Systems: EXTERIOR LIGHTING.
Defect: 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 M (excerpt)
Consequence: DRLs that do not deactivate as intended may result in a glare, reducing visibility, and increasing the risk of a crash. (excerpt)
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 prev (excerpt)
Do not drive: No. Park outside: No.
Date: 2021-08-05. Systems: AIR BAGS.
Defect: 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.
Do not drive: No. Park outside: No.
Date: 2021-06-10. Systems: AIR BAGS, ELECTRICAL SYSTEM.
Defect: 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. (excerpt)
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. (excerpt)
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 th (excerpt)
Do not drive: No. Park outside: No.
Manufacturer communications
813 manufacturer communications.
Communications by system| System | Count |
|---|
| EQUIPMENT | 201 |
|---|
| ELECTRICAL SYSTEM | 193 |
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| UNKNOWN OR OTHER | 157 |
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| POWER TRAIN | 109 |
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| ENGINE AND ENGINE COOLING | 107 |
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| ENGINE | 64 |
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| WHEELS | 42 |
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| STRUCTURE | 30 |
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11037555
Date: 2026-09-26. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
11037550
Date: 2026-09-21. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This PI communicates the proper part numbers for transmission connectors and internal harness to prevent confusion when ordering
11037319
Date: 2026-09-08. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This PI advises of a procedure for a Service Door Latch System message with No Related DTCs
11037253
Date: 2026-09-04. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
11036392
Date: 2026-08-20. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
11035351
Date: 2026-07-24. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This PI Communicates information to ensure Memory Recall is enabled to ensure memory mirrors return to set position after curbview assist is used.
11035340
Date: 2026-07-21. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
PI to help diagnose A/C concern
11034769
Date: 2026-06-23. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and how to reset/clear the message.
11032952
Date: 2026-05-21. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This Preliminary information communicates to dealership technicians that if they encounter a customer vehicle with this concern, to perform the steps listed and should be able to reprogram the module and correct this.A
11032955
Date: 2026-05-21. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
The document advise technicians after an engine repair involving removal of the camshaft actuators, the vehicle may set p1101 P0172 and or stalls when taken off idle. The technician is instructed to verify the intake and exhaust camshaft actuators are installed onto the correct camshafts.