2018 Cadillac CT6 Technical Service Bulletins

696 technical service bulletins (TSBs) are on record for the 2018 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.

• 10170484Dec 19, 2019Lane departure. This Preliminary Information communicates to the technician that some customers 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…
• 10170498Dec 12, 2019Equipment. This preliminary information bulletin provides information om Service Programming System (SPS) Error Codes (E4398, E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961).
• 10168987Nov 27, 2019Electrical system. This Preliminary information communicates a normal cycling draw caused by the keyless entry control module for approach lighting.
• 10169357Nov 26, 2019Equipment. This informational bulletin provides information on key code security rules and information on GM keycode look-up applications.
• 10169355Nov 25, 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).
• 10168978Nov 22, 2019Transmission and drivetrain. This Preliminary information communicates to the dealer technician that TAC recommends the utilization of the GDS2 software to aid in diagnosing automatic transmission concerns. TAC is requesting the GDS2 session logs be sent in before the dealer contacts TAC.
• 10169341Nov 18, 2019Engine, Equipment. This technical bulletin provides a procedure to perform inspections to determine if the engine needs to be replaced as opposed to just internal parts for knocking, rattle, squeak and/or squeal type noises from engine.
• 10169338Nov 14, 2019Electrical system. This technical bulletin provides a procedure to program the VPM to correct a condition of a dead battery after the vehicle has been parked overnight.
• 10169298Nov 13, 2019Transmission and drivetrain. Information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares.
• 10169356Nov 12, 2019Equipment, Wheels, Tires. This technical bulletin provides a procedure on how to clean and resurface aluminum wheel bead seats for vehicles that have the condition of Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated, Aluminum Wheel Bead Seat Corrosion.
• 10169354Nov 12, 2019Equipment, Exterior lighting. This informational bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Replacement Guidelines.
• 10168960Nov 12, 2019Brakes, Wheels. This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
• 10168956Nov 5, 2019Electrical system. This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. The J-35616-64B is the latest test probe released for checking tension or probing the .64 series terminals. The test probe terminal has been released in the terminal repair kit (J-38125-620H) located in Lear Tray 7 part number 963716-2.
• 10168212Oct 29, 2019Transmission and drivetrain. This informational bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operations.
• 10167460Oct 25, 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…
• 10168218Oct 24, 2019Transmission and drivetrain. This engineering information bulletin ends the need for information from the field on an Intermittent No Forward and/or No Reverse While Driving condition. If this condition is encountered, refer to SI for further diagnosis.
• 10167456Oct 22, 2019Engine cooling. This Preliminary Information communication provides the technician with the diagnosis and repair steps for a vehicle with a check engine light on with Diagnostic Trouble Code P015B or a reduced engine power message with Diagnostic Trouble Code P1101. Technician should look for a missing or damaged O-ring seal in the charge air cooler coupler.
• 10167455Oct 22, 2019Equipment. This Preliminary information communicates the use of air leak diagnostic test tool CH-52250 in addition to the information found in the service manual.
• 10168207Oct 16, 2019Equipment. This informational bulletin provides information for dealers how to submit a product information report (PIR) (Canada Only).
• 10168175Oct 14, 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.
• 10167437Oct 14, 2019Engine. This Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the related components. That any of the listed DTC's may set with or without poor engine performance.
• 10167434Oct 10, 2019Electrical system. This Preliminary Information communication provides information to the technician about vibration complaints that are one of the most challenging complaints to accurately diagnose and repair. Technician will need to use Pico Oscilloscope Diagnostic Kit to effectively diagnosis vehicles. Technician should drive the vehicle will using the Pico Oscilloscope to record data. After the data is recorded it should be…
• 10168208Oct 9, 2019Equipment. This informational bulletin provides information on key code security and information on GM key code look up applications.
• 10168205Oct 9, 2019Engine cooling. This informational bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
• 10168176Oct 8, 2019Transmission and drivetrain. This informational bulletin explains possible normal condition of a flare from 1st to 2nd, even if the trans had been repaired for the flare and its still noticed.
• 10167425Oct 3, 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".
• 10168204Oct 2, 2019Equipment. This informational bulletin provides information on comebacks prevention information and using customer concern verification sheets (CCVS).
• 10168188Oct 2, 2019Equipment. This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA) (US dealers only).
• 10207996Dec 12, 2018Equipment. Customer Satisfaction Program. All vehicles equipped with Hands-Free Lane Following (UKL) require control software improvement to optimize the performance of the Super Cruise system. Reprogram the long-range radar and active safety control modules.
• 10207705Dec 12, 2018Electrical system, Vehicle speed control. Customer Satisfaction Program. All vehicles equipped with Hands-Free Lane Following (UKL) require control software improvement to optimize the performance of the Super Cruise system. Reprogram the long-range radar and active safety control modules.
• 10207995Dec 10, 2018Air bags. Customer Satisfaction Program. All vehicles equipped with Hands-Free Lane Following (UKL) require control software improvement to optimize the performance of the Super Cruise system. Reprogram the long-range radar and active safety control modules.
• 10207704Dec 10, 2018Electrical system, Vehicle speed control. Customer Satisfaction Program. All vehicles equipped with Hands-Free Lane Following (UKL) require control software improvement to optimize the performance of the Super Cruise system. Reprogram the long-range radar and active safety control modules.
• 10207994Dec 4, 2018Forward collision avoidance. Customer Satisfaction Program. All vehicles equipped with Hands-Free Lane Following (UKL) require control software improvement to optimize the performance of the Super Cruise system. Reprogram the long-range radar and active safety control modules.
• 10207988Dec 4, 2018Engine cooling, Electrical system, Exterior lighting, Air bags. Emissions Recall. General Motors has decided to conduct a Voluntary Emission Recall involving certain vehicles, equipped with 4-cylinder engines (RPO LHN, LEX, L3A, LYX, LKN, LE2, LCV or LTG). On some vehicles, an electrical connection in the circuit board may fail in the engine control module. If this occurs, a malfunction indicator lamp (MIL), such as the Check Engine Light may illuminate. Replace the Engine…
• 10207703Dec 4, 2018Vehicle speed control, Electrical system. Customer Satisfaction Program. All vehicles equipped with Hands-Free Lane Following (UKL) require control software improvement to optimize the performance of the Super Cruise system. Reprogram the long-range radar and active safety control modules.
• 10207697Dec 4, 2018Electrical system, Engine cooling. Emissions Recall. General Motors has decided to conduct a Voluntary Emission Recall involving certain vehicles, equipped with 4-cylinder engines (RPO LHN, LEX, L3A, LYX, LKN, LE2, LCV or LTG). On some vehicles, an electrical connection in the circuit board may fail in the engine control module. If this occurs, a malfunction indicator lamp (MIL), such as the Check Engine Light may illuminate. Replace the Engine…
• 10207717Sep 6, 2018Electrical system. Emission Recall. Customer Mailing completed September 4, 2018.
• 10191071Nov 1, 2017Engine cooling. Potential turbo turbine wheel failure/MIL illuminated with DTC P0299 or P16E7. Correction Reprogram ECM with a new calibration.
• 10190242Nov 1, 2017Electrical system. Malfunction Indicator Lamp (MIL) Illuminated - DTC P3409 and/or P3433 Condition Some customers may comment that the MIL is illuminated. The technician may find one or more of the following DTCs set: • P3409 • P3433 Cause This condition may be caused by a wiring issue with both/either the cylinder 2 deactivation solenoid oil control valve circuit and/or the cylinder 5 deactivation solenoid oil control valve circuit…
• 10190339Oct 1, 2017Equipment, Electrical system. Original Equipment Batteries Part Number and ACDelco Replacement Battery Approved Warranty Part Numbers Correct battery cold cranking amperage (CCA) ratings and type are critical for proper test results when using the EL-50313. Access to the battery specification label, which contains the OEM part number and CCA rating and type, may be difficult without component removal. Refer to the table below for the original…
• 10190338Oct 1, 2017Equipment. Essential Tools that Include Consumable Parts (U.S. Only)
• 10190337Oct 1, 2017Suspension. Information Regarding the Differences Between Fluid Leakage and Seepage This bulletin is intended to help identify the differences between what is considered a fluid leak and what is considered seepage. Improper diagnosis may lead to unnecessary component replacement. Use the following information to determine if the condition is normal acceptable seepage or a defective component
• 10190329Oct 1, 2017Equipment, Back-over prevention (rear camera). Rear View Camera Guidelines Not Present at Times Condition Some customers may report that the Rear View Camera (RVC) guidelines are temporarily not available at times but the RVC will remain on during the concern. Additionally, no related DTCs will be found if this bulletin applies. One example of when this concern may be observed is if a customer quickly starts the car and immediately places the shifter in Reverse…
• 10190320Oct 1, 2017Electrical system, Equipment. IPC Odometer Programming Method Quick Reference Guide
• 10190318Oct 1, 2017Electrical system. All or Some Options May Be Missing from Driver Information Center (DIC) “Info Pages” Menu Due to Them Not Being Selected Condition Some customers may comment that with the “Info” option selected from the main menu (1), the “Info Pages” are blank (2) when scrolling up and down.
• 10190304Oct 1, 2017Equipment, Suspension. Information on P80 Lubricant for Front Stabilizer Shaft The purpose of this bulletin is to inform dealership technicians that a P80 lubricant, GM P/N 19354433 (In Canada, P/N 19354434), is available and REQUIRED for any repairs that involve the removal of the front stabilizer shaft. The Front Stabilizer Shaft Replacement procedure in SI has been updated to reflect this change

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