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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

Bulletins, newest first
10-08-110-001J2023-04-22. Service bulletin. EQUIPMENT. This service bulletin provides information on proper use of floor mats.
N2323978102023-04-19. Service bulletin. EQUIPMENT. Service Update - Certain vehicles may have a condition in which audio is lost for phone calls using Bluetooth or OnStar. Dealers are to reprogram the Virtual Cockpit Unit (VCU) software.
PIC64992023-04-17. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates that a U3000 SYM57 maybe found setting in a Short Range Radar and a VCI number will be required to allow reprogramming.
PIC6484A2023-04-17. Service bulletin. ENGINE. This Preliminary information communicates that a BCM calibration is preventing the ability to learn transmitters to the vehicle
PIT59962023-04-17. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates a issue with the K219 lighting control module that prevents special functions from operating correctly with the GDS2 scan tool
PIC64982023-04-17. Service bulletin. BACK OVER PREVENTION. This consise summary was created to advise of engineering investigation to address Error 302 when accessing the Energy APP.
PIT5878C2023-04-17. Service bulletin. EQUIPMENT:ELECTRICAL; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; ENGINE AND ENGINE COOLING. This Preliminary information communicates to the field engineering contacts to assist in the diagnosis of HVAC concerns on the new 2022-2023 HUMMER EV and the 2023 LYRIQ.
PIC64972023-04-17. Service bulletin. BACK OVER PREVENTION. This Preliminary information communicates that a click or tick noise may be heard when adjusting HVAC temperatures.
PIP5902A2023-04-17. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This Preliminary information communicates to the dealer of codes that set not to clear,unhook 12 volt power or program any module until discussing case with GM TAC. Once TAC case is started we will be reqesting the service managers name for a disptch of the FSE to gather a data dump for engineering review.
PIT5832G2023-04-17. Service bulletin. BACK OVER PREVENTION; ELECTRICAL SYSTEM:STARTER ASSEMBLY. This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.
PIT5985A2023-04-17. Service bulletin. POWER TRAIN. This Preliminary information communicates diagnostic tips on how to resolve a issues with vehicles that will not power up after a can bus 2 issue, lightning strike, or a failed over the air update.
23-NA-0552023-04-14. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin provides information on the EL-52800 Diagnostic & Charge Battery Station (DCBS) – FAQs.
22-NA-2352023-04-13. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin provides repair information to correct a customer concern of Wireless Charging Intermittent When Using iPhone and Samsung Phones at Offset Positions.
22-NA-1142023-04-13. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin provides information on Forklift and Vehicle Hoist Requirements to Support Electric Vehicle (EV) High Voltage Battery Handling.
22-NA-0832023-04-13. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This service bulletin provides Requirements for Replacement of the Dual Mode Cord Set Under Warranty.
22-NA-0182023-04-13. Service bulletin. EQUIPMENT; STRUCTURE. This service bulletin provides information for the Global Warranty Management (GWM) Warranty Parts Center (WPC) Part Photo Return Process (U.S. Dealers Only).
21-NA-0432023-04-13. Service bulletin. ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE; WHEELS; ENGINE AND ENGINE COOLING. This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
21-NA-0612023-04-12. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin provides information for dealers on Using EL-52545 When Diagnosing PEPs Transmitter Key Fobs.
16-NA-2222023-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.
07-06-01-016I2023-04-06. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.
23-NA-0442023-03-30. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This service bulletin provides information on AGM batteries that require less frequent charging in storage.
23-NA-0362023-03-30. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This service bulletin provides diagnostic information for dealers/technicians on an Amber Light on Dual Level Portable Charge Cord Set.
20-NA-1592023-03-30. Service bulletin. TIRES; WHEELS. This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).
N222392960-012023-03-28. Service bulletin. ELECTRICAL SYSTEM. Customer Satisfaction Program - certain may have a condition where the Super Cruise and Surround Vision features are not activated. Dealers are to reprogram the image processing module and if necessary, reprogram the short range radar sensors.
N2324044402023-03-25. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Stop Delivery Order: Reference Number N232404440

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