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Service bulletins for the 2023 Cadillac Lyriq

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.

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

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

Bulletins, newest first
N2525017912026-08-13. Service campaign. UNKNOWN OR OTHER. Certain vehicles may experience reduced or intermittent Telematics Control Module functionality. Dealers are to reprogram the Telematic Control Module to the latest software level.
N2525415102026-03-03. Service campaign. UNKNOWN OR OTHER. Certain vehicles may have been sold with a GM NACS Level 2 EV charging adapter (NACS to J1772) in which a quality issue was identified. Dealers are to provide the customer with the latest design charging adapter.
N252494250-012026-01-27. Service campaign. UNKNOWN OR OTHER. Certain vehicles listed above may be missing relevant information regarding the use of snow chains, snow socks, or other traction devices from the Owner’s Manual. Vehicle owners will be mailed an owner’s manual insert to include with other important printed material in the glovebox. For vehicles currently on dealer lots, dealers will include the insert prior to delivery.
N252521980-012025-10-31. Service campaign. SERVICE BRAKES. Certain vehicles listed above, may have a condition in which the Brake System Control Module does not have the latest software. Dealers are to reprogram the Brake System Control Module.
N2525219802025-10-22. Service campaign. SERVICE BRAKES. Certain vehicles, may have a condition in which the Brake System Control Module does not have the latest software. Dealers are to reprogram the Brake System Control Module.
N2324015702025-10-16. Service campaign. UNKNOWN OR OTHER. Certain vehicles listed above may have a condition in which the Battery Energy Control Module will not exit “commissioning” (start-up), because a Cell Monitoring Unit is offline. Dealers will reprogram the Battery Energy Control Module. Owners who have accepted applicable terms and conditions will have the opportunity to accept these software changes using wireless over-the-air (OTA) technology without having to bring their vehicle to a dealership. Alternatively, owners may have their vehicle serviced at a GM dealer to receive these software updates.
N2524942502025-08-26. Service campaign. UNKNOWN OR OTHER; WHEELS. Certain vehicles may be missing relevant information regarding the use of snow chains, snow socks, or other traction devices from the Owner’s Manual. Vehicle owners will be mailed an owner’s manual insert to include with other important printed material in the glovebox. For vehicles currently on dealer lots, dealers will include the insert prior to delivery.
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.
N2525023902025-06-02. Service campaign. ENGINE. Service Update. Certain vehicles listed above may require software updates that improve the customer experience and optimize future over-the-air updates. Dealers will perform a comprehensive software update.
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.
N2324282402025-03-12. Service campaign. UNKNOWN OR OTHER. This message is to inform dealers that Customer Satisfaction Program N232428240, released on March 7, 2024 through GM GlobalConnect Message GCUS-3-3167, is being temporarily suspended. Involved vehicle status in IVH will be temporarily changed from “Open” to “Manually Closed”. Dealers will be notified when repairs can be resumed. We apologize for any inconvenience this situation may cause.
N2424521102024-12-04. Service campaign. STEERING. Service Update. On certain vehicles, while Super Cruise is engaged, DTC B19F2 (steering wheel touch sensor fault) could occur. Dealers will replace the steering wheel.
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.
N232428540-022024-08-14. Service campaign. UNKNOWN OR OTHER. Certain vehicles may require software updates that improve the customer experience and optimize future over-the-air updates. Dealers will perform a comprehensive software update.
N232428540-012024-07-30. Service campaign. ELECTRICAL SYSTEM. Certain vehicles may require software updates that improve the customer experience and optimize future over-the-air updates. Dealers will perform a comprehensive software update.
N232428240-042024-06-04. Service campaign. UNKNOWN OR OTHER. Customer Satisfaction Program - Certain vehicles may have a condition in which the instrument panel center storage compartment does not function correctly. Dealers will replace the instrument panel center compartment or upper compartment.
N232428240-032024-05-15. Service campaign. UNKNOWN OR OTHER. Certain vehicles may have a condition in which the instrument panel center storage compartment does not function correctly. Dealers will replace the instrument panel center compartment or upper compartment.
N2324285402024-05-15. Service campaign. UNKNOWN OR OTHER. Customer Satisfaction Program - Certain vehicles may require software updates that improve the customer experience and optimize future over-the-air updates. Dealers will perform a comprehensive software update.

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