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Service bulletins for the 2016 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.

1371 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
16NA2392016-10-14. Service bulletin. EQUIPMENT:ELECTRICAL. THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO ENABLE THE 4G LTE WIFI ON NEWLY DELIVERED VEHICLES FOR SOME VEHICLES THAT WERE NOT SHIPPED WITH THE FEATURE NOT ENABLED.
16NA1972016-10-14. Service bulletin. EQUIPMENT:ELECTRICAL; VISIBILITY:SUN/MOON ROOF ASSEMBLY; VISIBILITY. THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE ON REPLACING THE SUNROOF WIRING JUMPER HARNESS DUE TO THE SUNROOF GLASS AND/OR SUNROOF SHADE IS INOPERATIVE.
16NA1192016-10-13. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. THIS WARRANTY ADMINISTRATION BULLETIN PROVIDE POLICY ON PERFORMING GM COVERED VEHICLE SERVICES AND MAINTENANCE ON VEHICLES ORIGINATING/SOLD IN CANADA.
16NA1122016-10-13. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION ON THE INTRODUCTION OF THE NEW 2016 CADILLAC CT6 TO HELP THE SERVICE DEPARTMENT PERSONNEL BECOME FAMILIAR WITH SOME OF THE VEHICLE’S NEW FEATURES AND TO DESCRIBE SOME OF THE ACTION THEY WILL NEED TO TAKE TO SERVICE THIS VEHICLE.
16NA0432016-10-13. Service bulletin. TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS; EQUIPMENT. THIS INFORMATIONAL BULLETIN PROVIDES THE CORRECT INFORMATION THAT IS NEEDED TO CORRECTLY KNOW WHAT TPM SENSOR IS NEEDED TO BE INSTALLED ON VEHICLES IF THERE IS ACCESSORY WHEELS INSTALLED AND WHO TO CONTACT WHEN THE ACCESSORY WHEELS WILL NOT LEARN THE TPM'S TO THE VEHICLES.
16-NA-1922016-10-12. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. THIS TECHNICIAL BULLETIN PROVIDES INFORMATION ON TESTING THE ACCM DUE TO SMALL AMOUNT OF OIL WEEPING INCLUDING THE CORRECT CLEANERS TO USE FOR THE OIL/DYE.
PIC62102016-09-23. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. THIS PRELIMINARY INFORMATION COMMUNICATES THE PROCEDURE TO THE TECHNICIAN HOW TO REGAIN BLU-RAY/CD/DVD PLAYER FUNCTION ON ALL NEW GENERATION INFOTAINMENT SYSTEMS WITH REGULAR PRODUCTION OPTION CODE U42 OR UWG BLU-RAY PLAYERS. IF THIS CONCERN IS ENCOUNTERED, CYCLE THE CD PLAYER/MEDIA DISC PLAYER FUSE AND RE-EVALUATE THE CONCERN.
PIC6048C2016-09-23. Service bulletin. SEATS; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT SOME CUSTOMER MAY COMMENT ON THE OPERATION OF THEIR HAPTIC SEAT DURING A LANE KEEP ASSIST EVENT. LANE KEEP ASSIST WORKS DIFFERENTLY THAN LANE DEPARTURE WARNING. THE LANE KEEP ASSIST ICON IS SOLID AMBER, FORWARD CAMERA MODULE IS ACTIVELY COMMANDING A TORQUE TO ELECTRONIC POWER STEERING. THIS MEANS THAT THE DRIVER SHOULD ALSO FEEL SOME FEEDBACK FROM THE STEERING WHEEL. NO CHIMES OR HAPTIC IN THE SEAT. LANE KEEP ASSIST ICON IS FLASHING AMBER; FORWARD CAMERA MODULE IS ACTIVELY COMMANDING TORQUE TO ELECTRONIC POWER STEERING. THIS WILL ALSO BE ACCOMPANIED WITH LANE DEPARTURE WARNING CHIMES AND HAPTIC IN THE SEAT FEEDBACK BASED ON THE SETTING CHOSEN IN THE VEHICLE SETTINGS. THIS WILL TAKE PLACE WHEN THE VEHICLE HAS CROSSED LANE MARKING BY (40 CM) OR (15.75 IN).
PIC-6095-A2016-08-26. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES THE TECHNICIAN WITH A DIAGNOSTIC AID FOR IDENTIFYING INFOTAINMENT COMPONENTS ON THE VEHICLES TO ENSURE THAT THE CORRECT COMPONENT IS ORDERED OR REPLACED AND THE CORRECT LABOR CODE IS USED FOR WARRANTY SUBMISSION.
PIT-5401-F2016-08-17. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR THE CONCERN OF THE RADIO IS INOPERTIVE. NEW SOFTWARE HAS BEEN RELEASED TO CORRECT THIS CONCERN.
PIC-5374-D2016-08-17. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR THE CONCERN OF RECEIVING FREQUENT "OFF ROUTE" MESSAGES WHILE FOLLOWING TURN BY TURN (TBT) ROUTE NAVIGATION. THE TECHNICIAN IS PROVIDED INSTRUCTIONS FOR RESETTING THE VEHICLE COMMUNICATION INTERFACE MODULE FOR THIS CONCERN.
PIC-6186-B2016-08-16. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN TO CONTACT GM TECHNICAL ASSISTANCE CENTER TO REPORT THE CONCERN AND OBTAIN A CASE NUMBER WHEN A CUSTOMER MAY COMMENT THAT THEY WILL HAVE THE RADIO SHUT OFF, AND WHEN RESTARTING THE VEHICLE THE RADIO WILL TURN ON UNWANTED.
PIP-5306-A2016-08-13. Service bulletin. EQUIPMENT; ENGINE. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT THE PRODUCT QUALITY CENTER HAS A PART RESTRICTION FOR E82 ENGINE CONTROL MODULE. THE TECHNICIAN WILL NEED TO CALL THE GENERAL MOTORS PRODUCT QUALITY CENTER FOR FURTHER ASSISTANCE.
PIC-6186-A2016-08-11. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. THIS PRELIMINARY INFORMATION COMMUNICATION IS TO CONTACT GM TECHNICAL ASSISTANCE CENTER TO REPORT THE CONCERN AND OBTAIN A CASE NUMBER. CUSTOMERS MAY COMMENT THAT THEY WILL HAVE THE RADIO SHUT OFF, AND WHEN RESTARTING THE VEHICLE THE RADIO WILL TURN ON UNWANTED.
PI-0281-E2016-08-06. Service bulletin. EQUIPMENT; STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS. THIS PRELIMINARY INFORMATIONAL BULLETIN PROVIDES INFORMATION THAT MAY BE HELPFUL WHEN ADDRESSING UNDERBODY COMPONENT CORROSION WITH CUSTOMERS.

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