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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 component: Equipment and accessories are shown. Show all

Bulletins, newest first
23-NA-1892024-02-14. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin assists technicians in setting up PicoScope hardware/software to monitor CAN bus traffic (voltage patterns) to aid Technical Assistance (TAC) and Field Service Engineers (FSEs) in diagnosing electrical issues present on network communication circuits.
23-NA-0552024-02-14. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin provides information on the EL-52800 Diagnostic & Charge Battery Station (DCBS) – FAQs.
22-NA-1142024-02-14. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This service bulletin provides information on Forklift and Vehicle Hoist Requirements to Support Electric Vehicle (EV) High Voltage Battery Handling.
PIE0753C2024-02-14. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This engineering information (EI) will assist GM to recover a small number of electric vehicle battery packs from customer-owned vehicles in the field for further engineering study and analysis.
PIE0769B2024-02-14. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regard the door windows will not roll all the way up.
PIT6097C2024-02-12. Service bulletin. EQUIPMENT:ELECTRICAL. This Preliminary information communicates an issue where the vehicles wireless charger no longer works with certain ISO updates on Apple 15 phones and advises customer to update their phone to the lastest ISO update.
PIP59572024-02-12. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary information communicates to the dealer of a possible issue with the vehicle is that the code was set in error and will need a reset procedure performed to verify. This PI outlines the path the dealer is to take to verify that the vehicle can be repaired with this procedure to prevent unnecessary parts replacement and time in service.
PIT61122024-02-12. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary information communicates dignostics tips for P0534 codes on 2024 Blazer EV and 2023 and 2024 Lyriq.
PIT6105A2024-02-12. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary information communicates to dealership technicians that they will need to perform this step prior to performing any programming on replacement radios.
PIT6047C2024-02-12. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; UNKNOWN OR OTHER. This Preliminary information communicates to dealership technicians to create a USB file that will have the radio ignore the BCM message for the 12v battery state of charge being to low that will cause the radio to not USB update.
PIT61052024-02-12. Service bulletin. UNKNOWN OR OTHER; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This Preliminary information communicates to dealership technicians that they will need to perform this step prior to performing any programming on replacement radios.
23-NA-1512024-02-06. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This informational bulletin provides a procedure to High Voltage Battery Core Return Shipment Criteria.
18-NA-0992024-02-02. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.
24-NA-0112024-02-02. Service bulletin. EQUIPMENT; VISIBILITY:SUN/MOON ROOF ASSEMBLY; STRUCTURE. This service bulletin provides repair information to correct a customer concern of rear sunroof itching.
23-NA-2212024-01-31. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin provides a procedure for Sun Load, Ambient Light, and Charge Indicator Sensor Replacement to correct a customer concern of A/C Inoperative or A/C blows warm air.
23-NA-2172024-01-31. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This informational bulletin provides information on Lithium-Ion Battery - TAC Approval and Exchange Program for Cadillac Lyriq and Chevrolet Blazer EV.
PIT6097B2024-01-29. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:WIRELESS CHARGER/CRADLE. This Preliminary information communicates an issue where the vehicles wireless charger no longer works with the latest ISO update on Apple 15 phones.
PIT6092B2024-01-29. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM. This Preliminary information communicates to general motor technicians that this concern can happen once the radio is factory reset. GM is aware of this and have provided a work around but is still developing the repair.
PIT6097A2024-01-29. Service bulletin. EQUIPMENT:ELECTRICAL:WIRELESS CHARGER/CRADLE. This Preliminary information communicates an issue where the vehicles wireless charger no longer works with the lastest ISO update on Apple 15 phones.
PIC6525A2024-01-29. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This Preliminary information communicates to dealership technicians that this could be a radio software concern that caused this issue. Follow normal SI diagnostics if Google services are not operational. This PI will be updated with further information once a correction is created.
PIT60972024-01-29. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; EQUIPMENT:ELECTRICAL:INFOTAINMENT. This Preliminary information communicates an issue where the vehicles wireless charger no longer works with the lastest ISO update on Apple 15 phones.
PIT6092A2024-01-29. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. This Preliminary information communicates to general motor technicians that this concern can happen once the radio is factory reset. GM is aware of this and have provided a work around but is still developing the repair.
PIT6044F2024-01-29. Service bulletin. BACK OVER PREVENTION:SOFTWARE; EQUIPMENT:ELECTRICAL. This Preliminary information communicates that a Software update is in the works and to disconnect the 12 volt battery to clear the codes.
18-NA-1802024-01-19. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This Warranty Administration Bulletin Provides High Voltage Battery Exchange Process Information.
23-NA-2172024-01-13. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This informational bulletin provides information on Lithium-Ion Battery - TAC Approval and Exchange Program for Cadillac Lyriq and Chevrolet Blazer EV.

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