2019 Cadillac XT4 Technical Service Bulletins

832 technical service bulletins (TSBs) are on record for the 2019 Cadillac XT4. 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.

• 10169362Nov 25, 2019Steering, Wheels, Equipment. This engineering information (EI) closure ends the need for information from the field on a stick-slip type condition felt in steering wheel at highway speeds. If a vehicle is encountered with the this condition, refer to SI for further diagnosis.
• 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).
• 10169361Nov 21, 2019Electrical system, Engine. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards.
• 10169351Nov 21, 2019Equipment. This technical bulletin provides repair information to correct a customer concern of Phone Ringer Volume Turned Down or Too Quiet.
• 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.
• 10168961Nov 12, 2019Engine cooling, Brakes. This Preliminary information communicates to the dealer a GDS2 error message (see below) might occur when trying to deactivate the boost system when preforming the hydraulic bleed procedure. This concern could be caused by the B20 Brake Fluid Level Switch Connector and the B34D Engine Coolant Temperature Sensor 4 Connector have been swapped.
• 10169266Nov 7, 2019Equipment. This technical bulletin provides repair information to correct a customer concern of Blue Screen and Service Rear Vision System Message on Radio Display.
• 10169365Nov 6, 2019Equipment. This engineering information bulletin is requesting information on paint quality issue that drives a warrantable item type of repair on any 2019 or 2020 Cadillac Model and to submit a Field Product Report (FPR) using the FPR App.
• 10169637Nov 5, 2019Engine cooling, Equipment, Fuel system. N182205890-02 - Service Update. Certain vehicles may have a condition where some capacitors used on the purge pump printed circuit board (PCB), may have unknown performance. These suspect capacitors are used in multiple locations on the PCB. Depending on which capacitors fail, the purge pump may not operate as intended and a malfunction indicator lamp (MIL) may illuminate. Dealers are to replace the evaporative…
• 10168853Nov 1, 2019Equipment, Engine. This Preliminary information communicates the possibility of a rattle noise that can occur from the timing cover area due to sticking timing chain tensioner.
• 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…
• 10168228Oct 23, 2019Equipment. This Technical bulletin provides information for dealers/technicians on Radio Software Version V805 Over-the-Air Update Release.
• 10168192Oct 21, 2019Transmission and drivetrain. This informational bulletin advises the tech of a possible normal condition caused when the transmission performs a 1-2 upshift at light throttle and why the D in the PRNDL will flash.
• 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.
• 10168186Oct 10, 2019Equipment. This informational bulletin provides information for dealers/technicians on the process to disable and enable passive unlocking.
• 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.
• 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).
• 10168222Oct 1, 2019Steering. This engineering information bulletin is requesting to gather information from the field to determine a root cause for a condition of a stick-Slip Type Condition Felt in Steering Wheel at Highway Speeds. The information gathered will be used to develop a field fix.
• 10165904Sep 25, 2019Electrical system. This Preliminary Information communication provides information to the technician about a no start or another concern after swapping an Engine Control Module or other modules from one vehicle to another. The Global Architecture electrical system associated with these vehicles does not allow controller swaps between vehicles.
• 10166661Sep 24, 2019Body and structure. This technical bulletin provides repair information to correct a customer concern of hearing an upper B-Pillar rattle noise.
• 10166668Sep 18, 2019Equipment. This engineering informational bulletin is requesting information from the field to determine the root cause of the overhead sunglasses compartment not being able to secure back into the resting position. Engineering to develop/Validate a Field Fix.
• 10166638Sep 18, 2019Equipment. This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
• 10165893Sep 18, 2019Lane departure, Electrical system. 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…
• 10166673Sep 17, 2019Steering. This engineering informational bulletin is requesting to gather information from the field to determine a root cause for a condition of a stick-Slip Type Condition Felt in Steering Wheel at Highway Speeds. The information gathered will be used to develop a field fix.
• 10166622Sep 17, 2019Equipment. This technical bulletin provides repair information to correct a customer concern of Radio Displays Climate Off Message or HVAC Popup Displays Different Settings.
• 10166671Sep 16, 2019Engine cooling. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to a check engine lamp illuminated and DTC P0451 set.
• 10166631Sep 16, 2019Equipment. This informational bulletin provides information to educate the customer on using either the radio and/or the physical controls to adjust the HVAC settings.
• 10166239Sep 13, 2019Engine. N192264170 - SUB - Certain 2019 model year Cadillac XT4 vehicles equipped with a 2.0L. 4-Cylinder Turbo engine do not properly clear the permanent status for EBCM DTC U0100 (loss of communications with ECM) or U0101 (loss of communications with TCM) if a service tool was used to clear these DTCs. Vehicles with the permanent status set for these DTCs could potentially fail an emissions inspection in certain…
• 10165885Sep 11, 2019Electrical system. This Preliminary information communicates the possible setting of B101D-39 in the OnStar module and advises of over the air software update to resolve the concern.
• 10166632Sep 10, 2019Brakes. This technical bulletin provides repair information to correct a customer concern of hearing a brake squeal Noise in cold weather conditions.
• 10165884Sep 10, 2019Electrical system. This Preliminary information communicates to the dealer that a customer may comment that the MIL light is illuminated. The technician may find P1098 and/or P26BB set current or history. That this may be caused by a software anomaly, and that GM is currently looking into the issue. It provides testing and related direction based on the results.
• 10166624Sep 6, 2019Electrical system. This technical bulletin provides repair information to correct a customer concern of Intermittent OnStar Inoperative, DTC B101D-39, Red LED and Clock Date Time Inaccurate.
• 10165868Sep 5, 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".
• 10165865Sep 4, 2019Steering. This Preliminary Information communication provides information to the technician with additional information on the functionality of Lane Keep Assist. Starting with 2016 model year Lane Keep Assist Regular Production Option Code (UHX) replaced Lane Departure Warning Regular Production Option Code (UFL). Lane Keep Assist is designed to assist the driver in keeping the vehicle from drifting out of a driving lane…
• 10165863Sep 4, 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.
• 10165094Aug 27, 2019Transmission and drivetrain. This technical bulletin provides a procedure to replace the fluid cooler exchanger and the torque converter or transmission and torque converter, depending on if the exchanger leaked into the transmission fluid.
• 10165127Aug 23, 2019Electrical system. This preliminary information bulletin provides information om Service Programming System (SPS) Error Codes E4398, E4399, E4403, M4404, M4413, E4414, E4423, E4491 or E6961).
• 10165087Aug 23, 2019Equipment. This warranty administration bulletin provides policy information, proper labor operation selection and causal part identification for warranty transactions (U.S. Only).
• 10165118Aug 22, 2019Equipment. This technical bulletin provides repair information to correct a customer concern of Radio Displays Climate Off Message or HVAC Popup Displays Different Settings.
• 10164780Aug 22, 2019Equipment. This Preliminary Information communication provides information to the technician about vehicles headrest monitors shutting off intermittently when closing driver door. Dealers should not replace any parts for this concern. Dealers should communicate to the customer that we apologize for this inconvenience and that General Motors is working on a solution for this concern.
• 10165124Aug 21, 2019Engine cooling. This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
• 10165084Aug 20, 2019Equipment. This informational bulletin provides information on Loss of Phone Pairing or Favorites, Last Setting of Volume, Station, App, and Audio Settings Change When Vehicle Shuts Down in Demo Mode and that this is considered a normal characteristic of the vehicle in demo mode.
• 10165126Aug 19, 2019Equipment. This bulleting provides Wiring, Terminal and Connector Repair Information including how to determine the Service Part Number in eSI and how to locate the part(s) in the EPC.
• 10165121Aug 15, 2019Engine cooling. This informational bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.

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