2023 Cadillac Lyriq Technical Service Bulletins

802 technical service bulletins (TSBs) are on record for the 2023 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.

• 10250244Jan 18, 2024Body and structure. This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.
• 10249987Jan 18, 2024Electrical system. This Preliminary information communicates a normal programming Characteristic for the K73 Telematics Control Module.
• 10249986Jan 17, 2024Equipment. This Preliminary information communicates dignostics tips for P0534 codes on 2024 Blazer EV and 2023 and 2024 Lyriq.
• 10249985Jan 17, 2024Equipment. This Preliminary information communicates to dealership technicians that they will need to perform this step prior to performing any programming on replacement radios.
• 10249984Jan 17, 2024Visibility (wipers, defrost, mirrors). This Preliminary information communicates that a noise or vibration maybe heard from the A/C compressor and that Engineering is working on a resolution.
• 10249773Jan 16, 2024Equipment, Electrical system. This informational bulletin provides a procedure to High Voltage Battery Core Return Shipment Criteria.
• 10249590Jan 16, 2024Equipment. This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.
• 10249977Jan 12, 2024Visibility (wipers, defrost, mirrors). This Preliminary information communicates that a noise or vibration maybe heard from the A/C compressor and that Engineering is working on a resolution.
• 10249532Jan 12, 2024Body and structure, Visibility (wipers, defrost, mirrors), Equipment. This service bulletin provides repair information to correct a customer concern of rear sunroof itching.
• 10249011Jan 12, 2024Exterior lighting. This informational bulletin provides information for dealers/technicians on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage.
• 10249454Jan 10, 2024Electrical system, Equipment. This informational bulletin provides information on Lithium-Ion Battery - TAC Approval and Exchange Program for Cadillac Lyriq and Chevrolet Blazer EV.
• 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
• 10249957Jan 4, 2024Equipment, Electrical system, Other or unknown. 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.
• 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.
• 10248710Dec 21, 2023Equipment, 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.
• 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.
• 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.
• 10249284Dec 12, 2023Equipment, 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.
• 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.
• 10249271Dec 7, 2023Electrical system, Equipment. 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.
• 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.
• 10249266Dec 5, 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.
• 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.
• 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.
• 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.

← All problems reported for the 2023 Cadillac Lyriq