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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.

By type

By component

By trouble code

By topic

Bulletins, newest first
PIC6583F2025-09-05. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates how to move U018B from Current to History.
PIC6583G2025-09-05. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates how to move U018B from Current to History.
PIC66172025-09-05. Service bulletin. UNKNOWN OR OTHER. PI is created to advise dealer of an issue that may have been induced by OTA programming
N2524942502025-08-26. Service campaign. UNKNOWN OR OTHER; WHEELS. Certain vehicles may be missing relevant information regarding the use of snow chains, snow socks, or other traction devices from the Owner’s Manual. Vehicle owners will be mailed an owner’s manual insert to include with other important printed material in the glovebox. For vehicles currently on dealer lots, dealers will include the insert prior to delivery.
PIC6583E2025-08-26. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates how to move U018B from Current to History.
PIT6236B2025-08-26. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates the active safety features and/or cameras are inoperative or unavailable after a 12 volt battery replacement or battery charge after a low voltage condition.
PIT64242025-08-26. Service bulletin. UNKNOWN OR OTHER. A vehicle may come in with B3A6B set in history. Tech is directed to clear code and advise the customer an OTA will be released for the code.
PIT64232025-08-26. Service bulletin. UNKNOWN OR OTHER. Diagnostic Guidance for U3000-97 Long Range Radar Blocked
PIP4902T2025-08-22. Service bulletin. UNKNOWN OR OTHER. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
PIC6511B2025-08-22. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates that a front license plate frame may cause interference with the park assist sensors.
PIT6394B2025-08-22. Service bulletin. UNKNOWN OR OTHER. A vehicle may have a service driver assist message and the technician cannot get the Long Range Radar learn procedure to complete. Tech is directed to drive a city route to complete the procedure.
PIT6059C2025-08-22. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates an issue with super cruise unavailable due to the driver's monitoring camera and dealers to replace the camera.
PIC5650M2025-08-12. Service bulletin. UNKNOWN OR OTHER. This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, B3935, C0750, C0755, C0760, C0765, and/or C0775.
PIC6578C2025-08-04. Service bulletin. ENGINE. This Preliminary information communicates procedure to relearn window motor when it reverses when expressing up.
N25-250378 (652.80)2025-07-31. Over-the-air update. UNKNOWN OR OTHER. GM Update 652.80 • Improvements to vehicle diagnostics. • Fixes to preserve battery life and improve charging. • Fixes to address issues with shifting. • Fixes for vehicle airflow in icy conditions. • Improvements to HVAC compressor performance. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.
PIT64132025-07-30. Service bulletin. UNKNOWN OR OTHER. This preliminary information is for technicians that will have this message after USB updating the radio. The repair should not involve replacing a module as pressing the reset button will correct this issue.
PIT6393B2025-07-30. Service bulletin. UNKNOWN OR OTHER. This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it. It also informs them to follow the bulletins as necessary to USB update the modules.
PIP5601C2025-07-23. Service bulletin. UNKNOWN OR OTHER. This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
PIP5601B2025-07-23. Service bulletin. UNKNOWN OR OTHER. This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
N2525028912025-07-16. Service campaign. ENGINE. Customer Satisfaction Program. Certain vehicles listed above may have a condition in which the internal differential nut was cross threaded or missing during assembly. Dealers will review the vehicles service history in IVH, and if necessary, replace the rear electric drive transmission module.
PIT6393A2025-07-14. Service bulletin. UNKNOWN OR OTHER. This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it. It also informs them to follow the bulletins as necessary to USB update the modules.
PIT64042025-07-01. Service bulletin. UNKNOWN OR OTHER. This Preliminary Information communicates the DTC's setting in the SDGM are false, steps to resolve and not to replace the module.
N25-2501792025-07-01. Over-the-air update. UNKNOWN OR OTHER. •Improves how center display adjusts to lighting changes. •Improved warnings when a key is missing. •Better tuning for interior lighting in Stealth mode. •Improvements to automatic low beam headlamp logic. •Smoother dimming and transitions from day to night. •Fixes to help prevent battery drain. •Fixes to responsiveness issues with Wi-Fi, Navigation, Super Cruise, and OnStar. •Improvements to software updates. •Improvements to OnStar emergency calls. •Fixes to address cellular connectivity issues. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.
N25-2493262025-07-01. Over-the-air update. UNKNOWN OR OTHER. •Increases the availability of Super Cruise functionality. •Additional improvements and fixes implemented. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.
PIT5832V2025-06-30. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.

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