WenmarOpen by Wenmar Pro

Service bulletins for the 2024 Cadillac CT4

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

397 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Only bulletins with type: Service campaign are shown. Show all

Bulletins, newest first
N242435630-052025-07-23. Service campaign. UNKNOWN OR OTHER. Customer Satisfaction Program. Certain model years and vehicle makes noted in the table above may have a condition where the battery is at risk for a drain following an over-the-air update. Dealers are to reprogram the serial data gateway module.
N252494770-012025-06-20. Service campaign. UNKNOWN OR OTHER. Amendments to the Song-Beverly Act (SBA) California warranty law provides vehicle owners with an opportunity to submit a written notice to GM before filing a lawsuit seeking a vehicle repurchase. If such a notice is not provided to GM, then the vehicle owner is prevented from seeking civil penalties in litigation. Vehicle owners of the affected vehicles will be mailed an owner’s manual and warranty insert containing this information in English and Spanish.
N2524947702025-06-17. Service campaign. UNKNOWN OR OTHER. Amendments to the Song-Beverly Act (SBA) California warranty law provides vehicle owners with an opportunity to submit a written notice to GM before filing a lawsuit seeking a vehicle repurchase. If such a notice is not provided to GM, then the vehicle owner is prevented from seeking civil penalties in litigation. Vehicle owners of the applicable vehicles will be mailed an owner’s manual and warranty insert containing this information in English and Spanish.
N232427510-022025-05-15. Service campaign. UNKNOWN OR OTHER. Certain 2018-2024 model year vehicles are receiving a software enhancement for SuperCruise. Dealers will update the Engine Control Module, Powertrain Control Module, Hybrid Powertrain Control Module 2 (HPCM2) or Drive Motor Control Module.
N232427510-012025-05-01. Service campaign. UNKNOWN OR OTHER. Certain 2018-2024 model year vehicles are receiving a software enhancement for SuperCruise. Dealers will update the Engine Control Module, Powertrain Control Module, Hybrid Powertrain Control Module 2 (HPCM2) or Drive Motor Control Module.
N2324275102025-04-29. Service campaign. UNKNOWN OR OTHER. Certain 2018-2024 model year vehicles are receiving a software enhancement for SuperCruise. Dealers will update the Engine Control Module, Hybrid Powertrain Control Module 2 (HPCM2) or Drive Motor Control Module.
N2424888002025-03-26. Service campaign. UNKNOWN OR OTHER. Certain vehicles may have reduced OnStar functionality due to an improperly configured module. Dealers are to contact OnStar using the blue button in the vehicle and request a module reconfiguration from an OnStar technical advisor.
N242435630-042024-10-02. Service campaign. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. Customer Satisfaction Program - may have a condition where the battery is at risk for a drain following an over-the-air update. Dealers are to reprogram the serial data gateway module.
N2424415602024-10-01. Service campaign. UNKNOWN OR OTHER. Customer Satisfaction Program. Certain vehicles equipped with Super Cruise require high-definition road maps to be updated frequently. This ensures the vehicle is current with road changes and any additional Super Cruise approved mapped roads. Dealers will reprogram the automated driving mapping control module.
N242435630-032024-09-11. Service campaign. ELECTRICAL SYSTEM. Customer Satisfaction Program - certain vehicles may have a condition where the battery is at risk for a drain following an over-the-air update. Dealers are to reprogram the serial data gateway module.
General Communication2024-08-26. Service campaign. ELECTRICAL SYSTEM. Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to updating affected modules (with some exceptions). The updating of modules is completed in parallel instead of the technician needing to update one module at a time. This allows a more streamlined approach for dealers and customers.
N2424466802024-07-16. Service campaign. UNKNOWN OR OTHER; POWER TRAIN. Certain vehicles may have a condition in which the transmission valve body solenoid retaining bolt was not properly torqued. Dealers will torque the control valve solenoid bolt to specification.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.