2019 Cadillac CT6 Technical Service Bulletins

875 technical service bulletins (TSBs) are on record for the 2019 Cadillac CT6. 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.

• 10165121Aug 15, 2019Engine cooling. This informational bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
• 10165122Aug 13, 2019Engine cooling. This informational bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.
• 10165123Aug 12, 2019Transmission and drivetrain. This informational bulletin provides information on Some vehicles may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. This is a slight movement that is more often seen visually, rather than felt, when viewed from the outside and using the auto-start feature, if equipped.
• 10164763Aug 12, 2019Equipment. This PI was written to inform dealers of a condition where a "Climate off" message will be displayed on the screen even thought the HVAC system is fully operational. Dealers are also informed that engineering is working on a solution
• 10164748Aug 7, 2019Electrical system, Lane departure, Forward collision avoidance, Engine. 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.
• 10164746Aug 6, 2019Transmission and drivetrain, Electrical system. This Preliminary information communicates to the dealer technician that the transmission control module P/N 24296206 is on restriction through the PQC.
• 10165079Aug 5, 2019Steering. This technical bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grease or sealant on certain locations on the gear.
• 10163878Jul 31, 2019Equipment, Vehicle speed control. Customer Satisfaction Program (revised service procedure and warranty information). 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).
• 10164113Jul 30, 2019Equipment, Electrical system. This informational bulletin provides information for dealers/technicians on Information on Head-Up Display (HUD) on Vehicles Model Year 2017 and Newer Has Rotational Feature that Allows for Adjusting of the Angle of the HUD Image.
• 10163896Jul 29, 2019Electrical system. This technical bulletin provides repair information to correct a customer concern of Displaying Terms and Conditions Agreements Page Every Ignition Cycle (Canada Only).
• 10163890Jul 29, 2019Transmission and drivetrain. This technical bulletin provides information for new transmission oil to use and a procedure for exchanging the old fluid and adding the new fluid to correct a shake/shudder during light throttle acceleration condition.
• 10163900Jul 26, 2019Equipment. This informational bulletin provides process information for the (GWM) and (WPC) parts return program.
• 10164120Jul 25, 2019Equipment, Transmission and drivetrain. This technical bulletin provides information for new transmission oil to use, a procedure for exchanging the old fluid and adding the new fluid to a service transmission.
• 10163673Jul 23, 2019Electrical 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.
• 10163657Jul 9, 2019Lane departure. This Preliminary Information communication provides information to the technician about vehicles that may have Service Front Camera, Service Lane Departure Warning, and Service Lane Keep Assist Message. Technician may find Diagnostic Trouble Code B1008 Sym 4B set. Technician will need to check the windshield to ensure it is not aftermarket. Technician will also check for anything that may impair the front view…
• 10163650Jul 1, 2019Engine cooling. This Preliminary Information communication provides information to the technician about vehicles that the engine stops running after extended idle with shifter in park. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle. If the customer exits the vehicle with the fob in their possession while the engine is running and the shifter is left in park, the…
• 10162166Jun 27, 2019Transmission and drivetrain. This Preliminary information communicates to the dealer technician that the 10L80 transmission has been place on a part restriction. Dealers are to contact the Product Quality Center before replacing the transmission assembly.
• 10164109Jun 26, 2019Electrical system, Brakes, Engine cooling. N192210460-01 - Service Update - Certain 2019 Cadillac CT6 equipped with engine RPO?s LSY or LTA, Chevrolet Silverado 1500 (New Model), and GMC Sierra 1500 (New Model) vehicles have a condition where the brake system control module (BSCM) may cause a service brake assist message to appear on the driver?s information center (DIC), and a service engine soon light to illuminate on the dashboard. This may cause the…
• 10163272Jun 26, 2019Equipment. The intent of this technical bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.
• 10163268Jun 26, 2019Electrical system, Equipment. This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.
• 10163261Jun 26, 2019Fuel system. This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.
• 10162159Jun 26, 2019Electrical system. This Preliminary information communicates information to dealers advising certain Over the air updates and USB updates have been temporarily suspended.
• 10162156Jun 26, 2019Transmission and drivetrain. This Preliminary information communicates to the dealer technician that the transmission control module P/N 24289415 is on restriction through the PQC.
• 10163266Jun 25, 2019Engine, Equipment. This informational bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
• 10163260Jun 25, 2019Equipment. This informational bulletin advises about the possible issues that may occur when using a scotch brite pad or highly abrasive disk on gasket sealing surfaces or reused parts.
• 10163193Jun 25, 2019Equipment. This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.
• 10164107Jun 21, 2019Equipment, Electrical system. Customer Satisfaction Program (revised service procedure). 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).
• 10164103Jun 14, 2019Equipment, Electrical system. 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).
• 10162126Jun 13, 2019Transmission and drivetrain. This Preliminary information communicates to the dealer technician that the valve body Part Unique Number (PUN) may contain the letter O or the number 0.
• 10163230Jun 12, 2019Body and structure, Seats. This technical bulletin provides a procedure to remove grease and install BRS tape to the spacers for the seat frame to eliminate a squeak type noise.
• 10163263Jun 11, 2019Electrical system, Equipment. This bulletin explains the labor operation numbers used for submitting warranty claims for module reprogramming and not when replacing a module.
• 10163237Jun 10, 2019Engine cooling. This informational bulletin provides information for dealers/technicians and customers on steam/vapor coming from the front grille or radiator area.
• 10163215Jun 6, 2019Transmission and drivetrain. This Bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record retention and proper handling of assembly returns.
• 10162103Jun 3, 2019Electrical 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.
• 10161880May 29, 2019Body and structure, Latches, locks and linkages. This informational bulletin provides information for dealers/technicians on the process to disable and enable passive unlocking.
• 10161048May 29, 2019Transmission and drivetrain, Electrical system. This Preliminary information communicates to the dealer technician that the transmission control module P/N 24289415 is on restriction through the PQC.
• 10161932May 21, 2019Engine cooling. This informational bulletin advises of a new fuel injection kit used for decarbonizing the intake valves, and explains how toptier fuels should be used to reduce carbon build up.
• 10161881May 21, 2019Transmission and drivetrain. This technical bulletin provides information for new transmission oil to use and a procedure for exchanging the old fluid and adding the new fluid to correct a shake/shudder during light throttle acceleration condition.
• 10161038May 21, 2019Equipment. This Preliminary information communicates information to dealers advising certain Over the air updates and USB updates have been temporarily suspended.
• 10161968May 20, 2019Transmission and drivetrain. This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
• 10161019May 15, 2019Forward collision avoidance. This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braking has been set to the "Alert" setting. This is normal when the FAB has been set to "Alert".
• 10161906May 9, 2019Tires. This informational bulletin provides information for dealers/technicians on Tire Radial Force Variation (RFV).
• 10161929May 8, 2019Equipment. This warranty administration bulletin provide policy information to cover GM's policy on performing GM covered vehicle services and maintenance on vehicles originating/sold in Canada.
• 10160992May 8, 2019Electrical system. This Preliminary information communicates to inspect the LVDS cable connections if unable to learn the Night Vision camera.
• 10160991May 8, 2019Steering, 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.
• 10161944May 6, 2019Body and structure. This technical bulletin provides repair information to correct a customer concern of hearing clicking, popping, tapping, creaking, flexing, rubbing or rattle noises from roof area during turns or driving over uneven pavement.
• 10161352May 3, 2019Body and structure. N182206500 - Service Update Bulletin - Certain vehicles were built without required protective metal coating on the hood ball stud bracket. Over time, metal to metal contact may create a corrosion issue in which the ball stud bracket used to anchor the hood could cause visible rust. Dealers are to replace the hood ball stud bracket.
• 10161907May 2, 2019Equipment. This informational bulletin provides information for dealers/technicians on Use of Dealer Case Management (DCM) and Being Prepared for Contacting U.S. Technical Assistance (TAC).
• 10160086Apr 26, 2019Equipment, Body and structure. This informational bulletin provides information and operating tips for the hands free lift gate.
• 10160692Apr 25, 2019Transmission and drivetrain. This Preliminary information communicates to the dealer technician that the 10L80 transmission has been place on a part restriction. Dealers are to contact the Product Quality Center before replacing the transmission assembly.

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