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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.

By type

By component

By trouble code

By topic

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
18-NA-1802024-01-13. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This Warranty Administration Bulletin Provides High Voltage Battery Exchange Process Information.
22-NA-2352024-01-13. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This service bulletin provides repair information to correct a customer concern of Wireless Charging Intermittent When Using iPhone and Samsung Phones at Offset Positions.
23-NA-2212023-12-22. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This technical 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 to hot air.
PIE07692023-12-19. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS; ELECTRICAL SYSTEM; STRUCTURE. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regard to door windows that will not roll all the way up.
PIE0762A2023-12-19. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT; ELECTRICAL SYSTEM; EQUIPMENT. This engineering information (EI) closure ends the need for gathering further information from technicians in regard to the backlight on infotainment and cluster screen is black and/or blank.
PIP5859C2023-12-18. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. This Preliminary information communicates that the High Voltage Battery pack is on TAC restriction where TAC will Authorize the full HV Battery pack Exchange with Engineering Review needed.
PIC65272023-12-18. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates that a U018B maybe found setting current or history, do not diagnose, the module is not used on 23 and 24 model years.
20-NA-1322023-12-15. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; ELECTRICAL SYSTEM. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
PIE0759C2023-12-09. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This engineering information (EI) closure ends the need for gathering further information from technicians in regard to the Malfunction Indicator Lamp (MIL) being illuminated on Driver Information Center (DIC), A/C not blowing cold air and/or the A/C working intermittently.
20-NA-0182023-12-09. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This service bulletin provides information for dealers/technicians on MDI 2 Required When Programming Vehicles with Vehicle Intelligence Platform (VIP).
22-NA-2152023-12-06. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This warranty administration bulletin provides policy information for chargers that are covered under the terms of a 3-year Limited Parts Warranty from the date of purchase.
PIE0759B2023-12-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regard to the Malfunction Indicator Lamp (MIL) being illuminated on Driver Information Center (DIC), A/C not blowing cold air and/or the A/C working intermittently.
PIT6044E2023-12-04. Service bulletin. BACK OVER PREVENTION:SOFTWARE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This Preliminary information communicates that a Software update is in the works and to disconnect the 12 volt battery to clear the codes.
PIT6044D2023-12-04. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary information communicates that a Software update is in the works and to disconnect the 12 volt battery to clear the codes.
PIT6065A2023-12-04. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates to technicians to perform the programming to the vehicles module to correct customer concerns.
21-NA-1352023-11-29. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT; EXTERIOR LIGHTING; ELECTRICAL SYSTEM. This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.
23-NA-1892023-11-15. 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-1512023-11-15. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This informational bulletin provides a procedure to High Voltage Battery Core Return Shipment Criteria.
PIE0753B2023-10-26. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. 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.
PIE0753A2023-10-18. 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.
23-NA-1732023-10-18. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE. This service bulletin provides repair information to correct customer concerns of Radio Software issues.
PIE07592023-10-07. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; EQUIPMENT; ELECTRICAL SYSTEM. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regard to the Malfunction Indicator Lamp (MIL) being illuminated on Driver Information Center (DIC), A/C not blowing cold air and/or the A/C working intermittently.
23-NA-1512023-10-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This informational bulletin provides a procedure to High Voltage Battery Core Return Shipment Criteria.
NHTSA 102425552023-09-20. Service bulletin. ELECTRICAL SYSTEM. Potential Low Battery/No Start Issue
PIC6493A2023-09-18. Service bulletin. STEERING; ELECTRICAL SYSTEM; WHEELS. This Preliminary information communicates that the steering wheel maybe contacting the column covers and to inspect for the turn signal switch bracket to be correctly installed on the steering column.

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