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Service bulletins for the 2019 Cadillac CT6

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.

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

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

Bulletins, newest first
1922174902019-08-26. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM; EQUIPMENT. Customer Satisfaction Program. General Motors is expanding the mileage of Super Cruise enabled roads to include over 70,000 additional miles (112,000 additional km) by the end of 2019, bringing the total number of Super Cruise enabled roads to over 200,000 miles (320,000 km). In addition to the currently mapped roads, this mileage expansion allows for the Super Cruise driver assistance feature to be engaged on divided, high-speed main roads that contain some limited intersections and traffic control devices. As always, it remains important for drivers to stay engaged and vigilant at all times while Super Cruise is engaged. Reprogram Active Safety Control Module and the Digital Map Control Module.
19NA1712019-08-19. Service bulletin. ELECTRICAL SYSTEM. This technical bulletin provides repair information to correct a customer concern of Displaying Terms and Conditions Agreements Page Every Ignition Cycle (Canada Only).
PIC6355A2019-08-12. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about how to diagnosis a battery draw that may be caused by a module back feeding voltage in the ignition relay circuits making the vehicle think it is still awake.
100845001G2019-07-29. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.
060847001O2019-07-29. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM. This bulletin explains the labor operation numbers used for submitting warranty claims for module reprogramming and not when replacing a module.
PIC6365A2019-07-08. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary information communicates information to dealers advising certain Over the air updates and USB updates have been temporarily suspended.
PIP5591B2019-07-08. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates advises the technician that the ECM part number will be placed on a parts restriction through the General Motors Technical Assistance Center. Dealer will need to contact General Motors Technical Assistance Center for further assistance.
PIP5575B2019-06-10. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This Preliminary information communicates to the dealer technician that the transmission control module P/N 24289415 is on restriction through the PQC.
PIC6352A2019-06-10. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates to inspect the LVDS cable connections if unable to learn the Night Vision camera.
PIC6339A2019-06-10. Service bulletin. STEERING; ELECTRICAL SYSTEM. This Preliminary information communicates to the dealer technician the need to disconnect the Steering Column Friction Control Module to correctly diagnose B290A SYM49.
PIC6123C2019-06-03. Service bulletin. BACK OVER PREVENTION; ELECTRICAL SYSTEM; LANE DEPARTURE. This Preliminary Information communication provides information to the technician for the adaptive cruise control or lane keep assist unavailable message in the driver?s information center after the vehicle has been parked in direct sunlight and high ambient temperatures. The cameras electronic control unit?s internal operating temperature range is -40 degrees Celsius to 85 degrees Celsius. If the temperature of the electronic control unit of the camera module exceeds 85 degrees Celsius the image processor will no longer function resulting in adaptive cruise control and lane keep assist to be unavailable until the temperature falls to below the maximum operating temperature range
PIC63592019-06-03. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:SOFTWARE. This Preliminary information communicates a normal cycling draw caused by the keyless entry control module for approach lighting.
19NA0762019-05-28. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; BACK OVER PREVENTION: SENSING SYSTEM: CAMERA; EQUIPMENT ADAPTIVE/MOBILITY. This technical bulletin provides repair information to correct a customer concern of Blue Screen and Service Rear Vision System Message on Radio Display.
030603004Y2019-05-20. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This warranty administration bulletin provides policy information on the requirements for battery testing and warranty replacements.
100845001F2019-04-22. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. This bulletin provides information for electrical ground repairs using new replacement fasteners with "conductive finish".
090089002Q2019-04-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before sold (prepping) to the customer.
070849020P2019-04-22. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides information for the IPC odometer programming method quick reference guide.
030846004V2019-04-22. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides information on OnStar® VCIM is currently restricted parts. By working closely with our dealers and technicians, through the part restriction process, the General Motors team will gain a better understanding of any field concerns that may develop.
18NA1802019-04-22. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This Warranty Administration Bulletin Provides High Voltage Battery Exchange Process Information.
PIP5575A2019-04-08. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This Preliminary information communicates to the dealer technician that the transmission control module P/Ns 24289415 and 24296206 are on restriction through the PQC.
PIC63552019-04-08. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about how to diagnosis a battery draw that may be caused by a module back feeding voltage in the ignition relay circuits making the vehicle think it is still awake.
110849001Y2019-03-25. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This technical bulletin provides information on Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing and the procedures to turn the Transport Mode message On and Off.
16NA3422019-03-25. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES; ELECTRICAL SYSTEM. This technical bulletin provides a procedure to check the rearview mirror coax connector for looseness by disconnecting and reconnecting the electrical connector and to correct the customers concern for the rearview mirror video screen displaying blue.
060847001N2019-03-25. Service bulletin. ELECTRICAL SYSTEM. This bulletin explains the labor operation numbers used for submitting warranty claims for module reprogramming and not when replacing a module.
100089005H2019-03-18. Service bulletin. ELECTRICAL SYSTEM:WIRING. This warranty admin bulletin explains to the technician additional information may be needed when submitting transactions when doing wiring repairs.

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