2024 Cadillac Lyriq Technical Service Bulletins

725 technical service bulletins (TSBs) are on record for the 2024 Cadillac Lyriq. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10249458Jan 9, 2024Electrical 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.
• 10249535Jan 8, 2024Electrical system. This preliminary information (PI) provides information om Service Programming System (SPS) Error Codes (E4398, E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961).
• 10249013Jan 8, 2024Electrical system, Equipment. This Warranty Administration Bulletin Provides High Voltage Battery Exchange Process Information.
• 10249960Jan 5, 2024Transmission and drivetrain. This Preliminary information communicates ordering process for the front and rear drive unit restriction for the 2023 - 2024 Cadillac Lyriq
• 10249956Jan 4, 2024Equipment, Other or unknown. This Preliminary information communicates to dealership technicians that they will need to perform this step prior to performing any programming on replacement radios.
• 10249953Jan 2, 2024Electrical system. This Preliminary information communicates to technicians to perform the programming to the vehicles module to correct customer concerns.
• 10248729Dec 31, 2023Equipment, Electrical system. This informational bulletin provides information on Lithium-Ion Battery - TAC Approval and Exchange Program for Cadillac Lyriq and Chevrolet Blazer EV.
• 10248725Dec 31, 2023Electrical system, Equipment. This Warranty Administration Bulletin Provides High Voltage Battery Exchange Process Information.
• 10248266Dec 18, 2023Body and structure, 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.
• 10249294Dec 15, 2023Other or unknown, Electrical system. This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.
• 10247594Dec 15, 2023Electrical system, Equipment, Visibility (wipers, defrost, mirrors). 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.
• 10247595Dec 14, 2023Electrical system, Equipment. This service bulletin provides repair information to correct a customer concern of Radio Software issues and provide software (Version W26E-172.4.2-M169-SQBR4-123.4) Updates for IVD.
• 10249286Dec 13, 2023Equipment. This Preliminary information communicates an issue where the vehicles wireless charger no longer works with the latest ISO update on Apple 15 phones.
• 10249285Dec 12, 2023Electrical system. This preliminary information communicates to all field technicians the imperative protocol that if any of the listed codes are detected, currently or historically, the specified procedure must be strictly followed prior to the replacement of any A28B secondary contactor assembly. This advisory highlights that the presence of these codes could be indicative of a potential calibration anomaly.
• 10247552Dec 12, 2023Equipment. This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed Accessories.
• 10249283Dec 11, 2023Electrical system. This Preliminary information communicates to the technicians that GM is aware of this issue and are root causing the concern. Once a solution is available, the PI will be updated to reflect the new direction.
• 10249281Dec 8, 2023Equipment. This Preliminary information communicates an issue where the vehicles wireless charger no longer works with the lastest ISO update on Apple 15 phones.
• 10247192Dec 8, 2023Equipment, Engine cooling, Electrical system. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
• 10249273Dec 7, 2023Equipment, Electrical system. This Preliminary information communicates to dealership technicians that this is a radio software concern that caused this issue. USB updating and SPS reprogramming the A11 radio will correct this concern.
• 10247523Dec 7, 2023Visibility (wipers, defrost, mirrors), Body and structure, 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 door windows that will not roll all the way up.
• 10249270Dec 6, 2023Equipment. This Preliminary information communicates an issue where the vehicles wireless charger no longer works with the lastest ISO update on Apple 15 phones.
• 10247520Dec 6, 2023Electrical 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.
• 10247522Dec 4, 2023Electrical system, Equipment. This Engineering Information (EI) notifies dealers that a condition may exist when updating the VCU with the latest software.
• 10249261Dec 1, 2023Equipment, Back-over prevention (rear camera). This Preliminary information communicates that a Software update is in the works and to disconnect the 12 volt battery to clear the codes.
• 10247380Nov 30, 2023Equipment. 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.
• 10246485Nov 30, 2023Electrical system, Equipment. This service bulletin provides information for dealers/technicians on MDI 2 Required When Programming Vehicles with Vehicle Intelligence Platform (VIP).
• 10246494Nov 28, 2023Equipment, 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.
• 10246486Nov 27, 2023Body and structure. This service bulletin provides a repair procedure to correct a customer concern of the Floor Console Armrest Lower Panel separating.
• 10246312Nov 22, 2023Electrical system, Equipment. 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.
• 10247364Nov 17, 2023Transmission and drivetrain. 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.
• 10246290Nov 16, 2023Electrical system, Equipment, Visibility (wipers, defrost, mirrors). 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.
• 10245559Nov 16, 2023Engine cooling, Exterior lighting, Electrical system, Equipment. This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.
• 10247358Nov 15, 2023Body and structure. This Preliminary information communicates to the technician how to address Hvac Temperature door issues and associated Service vehicle soon light. Summary: if concern is still present after loosening actuator and relearning then Hvac case replacement may be needed.
• 10247355Nov 14, 2023Transmission and drivetrain. This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.
• 10245166Nov 8, 2023Equipment, Electrical system, Other or unknown. Service Update - Certain vehicles may have a condition where the wires to a coolant sensor could create stress at the connector. Dealers are to perform a Harness Clip adjustment.
• 10245395Nov 6, 2023Suspension, Transmission and drivetrain, Engine cooling, Wheels, Steering. This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing vibration concerns.
• 10247345Nov 3, 2023Electrical 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.
• 10247343Nov 3, 2023Electrical system. This Preliminary information communicates to the dealers that the code of P1AEE, P0C76, P0AA4, P0D09, P0D10 AND OR U35BC that can be set for extended charge times with out charge cord plug cycling from vehicle. Engineering is aware of this issue and working on final repair. At this time to clear codes and advise customer of direction a this time.
• 10247339Nov 1, 2023Electrical 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.
• 10246030Oct 30, 2023Back-over prevention (rear camera), Electrical system. This Preliminary information communicates that a Software update is in the works and to disconnect the 12 volt battery to clear the codes.
• 10245250Oct 30, 2023Wheels. This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).
• 10246021Oct 26, 2023Electrical system. This Preliminary information communicates that a Software update is in the works and to disconnect the 12 volt battery to clear the codes.
• 10245248Oct 25, 2023Equipment, Electrical system. 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.
• 10246018Oct 24, 2023Vehicle speed control, Seats. This Preliminary information communicates that a service door latch system message maybe displayed without any related DTC's.
• 10246013Oct 20, 2023Equipment. This Preliminary information communicates to dealership technicians that this is a radio software concern that caused this issue. USB updating and SPS reprogramming the A11 radio will correct this concern.
• 10245234Oct 19, 2023Equipment, Electrical system. This informational bulletin provides a procedure to High Voltage Battery Core Return Shipment Criteria.
• 10244176Oct 16, 2023Visibility (wipers, defrost, mirrors). Service Update - vehicles may have a condition in which the air conditioning hoses are twisted. Dealers are to inspect the air conditioning hoses and repair if necessary.
• 10244326Oct 11, 2023Equipment. This service bulletin provides information on General Motors Dealership Critical Equipment Requirements and Recommendations.
• 10244274Oct 6, 2023Wheels. This service bulletin provides information about the Hunter wheel Road Force balancers that should be utilized for all repairs requiring balance and Road Force measurement.
• 10245988Oct 4, 2023Other or unknown. This Preliminary information communicates to the dealership tech of a possible area of concern to look before replacement of any parts.

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