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Service bulletins for the 2024 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.

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

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

Bulletins, newest first
PIP59812024-08-13. Service bulletin. FUEL/PROPULSION SYSTEM. This Preliminary information communicates ordering process for the front and rear drive units are on restriction for all listed EV vehicles for engineering review.
PIE0788C2024-07-18. Service bulletin. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. This engineering information (EI) closure ends the need for gathering further information from technicians in regard to MIL illuminated on DIC to correct BET and BEV3 Ultium Packs Setting Moving Average Voltage Detection (MAVD) and Delta Voltage Rest Period (DVRP) Fault Codes.
22-NA-0832024-07-17. Service bulletin. ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. This service bulletin provides Requirements for Replacement of the Dual Mode Cord Set Under Warranty.
PIE0788B2024-07-11. Service bulletin. ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regard to MIL illuminated on DIC to correct BET and BEV3 Ultium Packs Setting Moving Average Voltage Detection (MAVD) and Delta Voltage Rest Period (DVRP) Fault Codes.
23-NA-1512024-06-24. Service bulletin. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. This service bulletin and criteria within are to determine the internal state of the High Voltage Battery and core return shipping method.
PIE0788A2024-05-31. Service bulletin. FUEL/PROPULSION SYSTEM; 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 MIL illuminated on DIC to correct BET and BEV3 Ultium Packs Setting Moving Average Voltage Detection (MAVD) and Delta Voltage Rest Period (DVRP) Fault Codes.

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