2015 GMC Sierra Denali Technical Service Bulletins

1,815 technical service bulletins (TSBs) are on record for the 2015 GMC Sierra Denali. 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.

• 10135189Apr 2, 2014Engine cooling, Back-over prevention (rear camera). This information bulletin provides additional information to the technician on how to diagnose possible normal engine noise during a cold star and a warm engine operation.
• 10250013Apr 1, 2014Electrical system. High Voltage Safety ? High Voltage Disabling
• 10246623Apr 1, 2014Vehicle speed control, Electrical system, Exterior lighting, Other or unknown…. Car and Truck Fix it Right the First Time Issues
• 10246500Apr 1, 2014Equipment, Air bags. High Voltage Safety ? High Voltage Disabling
• 10245964Apr 1, 2014Back-over prevention (rear camera). No Audio Except Chime Distorted Or Inoperative Rear Camera -No Audio- Displayed On Audio Page In DIC.
• 10245960Apr 1, 2014Back-over prevention (rear camera). Whistle Noise From Inside Vehicle.
• 10111888Mar 31, 2014Fuel system, Electrical system, Engine. This Preliminary Information communication provides information to the technician how to diagnose and repair vehicles with an engine that runs with an intermittent crank no start with a Diagnostic Trouble Code P0011 or P00C6 current or history. Technician will need to use Global Diagnostic System 2 to actuate the cam phaser solenoid 4 or 5 times then try starting the vehicle. Then disable the ignition and fuel…
• 10137887Mar 28, 2014Electrical system. This warranty bulletin explains how to use the EL-50313 Midtronic GR8 Battery tester to test a battery and determin if it is warranty or not
• 10111884Mar 27, 2014Equipment, Fuel system. This Preliminary Information communication provides information to the technician about vehicles that may have a bump feel or clunk noise at a stop or on launch. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle. The bump clunk issue may be due to fuel movement in the fuel tank when not completely full. The condition is eliminated after completely filling…
• 10111883Mar 27, 2014Other or unknown. This Preliminary Information communication provides information to the technician about customers that may request the factory Integrated Trailer Brake Controller Regular Production Option Code (JL1) be installed on their Full-Size Pickup or SUV when the vehicle was not ordered with the option. Dealer should advise the customer it cannot be added to the vehicle.
• 10111882Mar 26, 2014Equipment. This Preliminary Information communication provides information to the technician about vehicles that may have a the AM or FM audio volume changes, mutes, echoes, cuts in and out, repeats broadcast content, or skips intermittently. Advise this is normal operation when listening to a weak AM or FM HD station. Technician can shut the HD option off to fix the concern.
• 10111877Mar 24, 2014Equipment. This Preliminary Information communication advises the technician that some vehicles may have a radio display that is covered when the radio station favorites list is maximized. This is a normal operating characteristic and no repair attempt should be made. The hidden screen functions will operate again after the user minimizes the favorites list by dragging it to the bottom of the display.
• 10111875Mar 24, 2014Engine. This Preliminary Information communication provides information to the technician about vehicles that have an oil leak shortly after a cold start when extremely low ambient temperatures are present. Technician will need to clean the area of the oil leak, clean and dry the PCV hoses, and replace the oil fill cap with part number 12589430.
• 10137866Mar 17, 2014Equipment. This informational bulletin helps the technician quick reference repairs to bulletins as opposed to replacing parts that may be un necessary.
• 10137865Mar 14, 2014Equipment. This preliminary bulletin provides new model features and service guide.
• 10137854Mar 7, 2014Equipment. This preliminary bulletin provides a procedure to repair or replace the tonneau cover clamps if the customer states the clamps are to hard to close.
• 10111856Mar 7, 2014Engine. This Preliminary Information communication advises the technician that the 2010 through 2015 6.6L Duramax Diesel Engine Part number 12638502 has been placed on a parts restriction through General Motors Product Quality Center. Dealer will need to contact General Motors Product Quality Center for further assistance.
• 10111850Mar 5, 2014Equipment. This Preliminary Information communication provides information to the technician about vehicles that when a Canadian customer may comment that when they travel to the United States, they are unable to connect to OnStar or use hands free calling. Dealer can advise the customer that the existing cell phone provider not having roaming agreements in areas outside of Canada.
• 10111849Mar 5, 2014Electrical system, Equipment. This Preliminary Information communication provides information to the technician about vehicles that have a frequent "off route" messages while following Turn by Turn route. Technicians will need to remove power from the Vehicle Communication Interface Module for one hour and retest for the concern.
• 10111848Mar 5, 2014Equipment. This Preliminary Information communication provides information to the technician about vehicles that has no XM audio on certain channels but XM channel info is displayed. Technician will need to contact XM and deactivate and activate the module.
• 10137849Mar 4, 2014Visibility (wipers, defrost, mirrors), Equipment. This preliminary bulletin provides a repair to replace the windshield to fix the customers concern of the inside rearview mirrior loose or fell off with bracket.
• 10111846Mar 4, 2014Electrical system. This Preliminary Information communication provides information to the technician about a customer?s request to install OnStar Bluetooth. Dealer should be advised at this time, there are no provisions to add this option to vehicles that were not built with it.
• 10111845Mar 4, 2014Equipment, Electrical system. This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles that may have an OnStar Turn-By-Turn Navigation the system that is inoperative. Technician verifies there are no Diagnostic Trouble Codes are present in the Antilock Braking System and Vehicle Communication Interface Module of the vehicle. If no Diagnostic Trouble Codes found call OnStar using…
• 10247681Mar 1, 2014Equipment. Information On Requests To Add OnStar Bluetooth Option.
• 10246622Mar 1, 2014Equipment. Car and Truck Fix it Right the First Time Issues
• 10245950Mar 1, 2014Equipment. Canadian Customers Unable To Place Calls In The United States
• 10138651Feb 27, 2014Equipment, Fuel system. This informational bulletin explains the use of diesel fuel additives to remove water or enhance performance.
• 10138649Feb 26, 2014Electrical system. This technical bulletin provides a procedure on how to turn the transport mode message of and reset the battery light flashing.
• 10111968Feb 26, 2014Electrical system. This Preliminary Information communication provides information to the technician about customers that may request the factory Integrated Trailer Brake Controller Regular Production Option Code (JL1) be installed on their Full-Size Pickup or SUV when the vehicle was not ordered with the option. Dealer should advise the customer it cannot be added to the vehicle.
• 10111966Feb 26, 2014Electrical system. This Preliminary Information communication provides information to the technician about vehicles that have an OnStar system that will not power up. Technician should turn off the ignition and cancel retained accessory power. After the vehicle has powered down, remove power to the OnStar module for five minutes. After the power has been removed for five minutes, if the OnStar system is working release the vehicle.
• 10111964Feb 26, 2014Electrical system. This Preliminary Information communication provides information to the technician about vehicles that have the OnStar system does not respond properly to some numbers and/or voice commands. Dealer should direct the customer to review the operational characteristics in the OnStar Users Guide.
• 10138646Feb 25, 2014Transmission and drivetrain, Engine, Equipment. This informational bulletin provides a process to the service agents that are not required to contact PQC, to determine when to replace a assembly as opposed to repairing and if an engine or transmission is being returned, that it has all the information in relation to that part being returned.
• 10111962Feb 25, 2014Electrical system. This Preliminary Information communication advises the technician that when replacing the camshaft part number 12626660. Technician will need to ensure that the date code and the finish of the camshaft. If the cam is discolored or has chatter marks, have parts department send the cam back as (MR code7) new defective.
• 10138642Feb 21, 2014Latches, locks and linkages, Electrical system. This preliminary bulletin provides information on how to set the rear electric child locks.
• 10138641Feb 21, 2014Body and structure, Electrical system, Engine. This preliminary bulletin provides a procedure to reprogram the body control module to correct the customers concern of the intermittent no start and security lamp on.
• 10138640Feb 21, 2014Visibility (wipers, defrost, mirrors). This warranty bulletin explains how to determine if an outside mirrior was damaged by the customer and what is considered warranty and non-warranty.
• 10138639Feb 21, 2014Equipment, Wheels. This informational bulletin provides the technician the proper way to install and torque the wheel.
• 10138638Feb 21, 2014Wheels. This informational bulletin explains how to balance a chrome wheel without damaging the chrome face of the rim.
• 10138637Feb 21, 2014Wheels, Equipment, Tires. This informational bulletin provides technicians with ways to decrease the tire slipping on the rim and reduce to possible chances of the customers concerns over tire vibration are repair.
• 10111954Feb 21, 2014Electrical system, Engine. This Preliminary Information communication advises the technician that the 2015 Chevrolet Silverado and 2015 GMC Sierra equipped with the 6.6L Diesel Engine Control Module part number 12658036 will be placed on a parts restriction through the General Motors Product Quality Center. Dealer will need to contact General Motors Product Quality Center for further assistance.
• 10138631Feb 18, 2014Tires, Wheels. This technical bulletin provides a procedure on cleaning a leaking rim, to correct a customers concern of having a slow tire leak and low tire psi message on.
• 10138630Feb 18, 2014Equipment, Tires. This informational bulletin explains the use of Nitrogen in GM tires.
• 10138629Feb 18, 2014Tires. This bulletin provides information regarding the normal tire wear condition of slight or mild tire feathering and recommended practices.
• 10111933Feb 14, 2014Engine cooling, Equipment. This Preliminary Information communication provides information to the technician about vehicles that the blower motor may be noisy or vibrate when running. This concern will only occur when the temperatures is below 32 degrees Fahrenheit and if the blower motor is removed while still cold, ice may be found on the blower motor cage. This concern could be caused by water leaking or snow ingestion into the…
• 10111927Feb 12, 2014Brakes, Fuel system, Equipment. This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp. Technician may find Diagnostic Trouble Code P0442. Technician will need to review Techlink article from May 2013 titled "Using the Evaporative Emissions System Tester" Technician will need to follow these steps to help diagnose the issue. First after the P0442…
• 10111920Feb 11, 2014Equipment, Electrical system. This Preliminary Information communication provides information to the technician about systems operate during a remote vehicle start event. Dual Zone Auto Regular Production Option Code (CJ2) Heater-Vent-Air Conditioning settings the Heater-Vent-Air Conditioning settings will remain set to the previous Heater-Vent-Air Conditioning settings when the ignition was turned off.
• 10111919Feb 11, 2014Electrical system, Steering. This Preliminary Information communication provides information to the technician about vehicles that may have hard or unable to rotate ignition key concern. When the concern is present the steering wheel will need to be rotated in either direction to alleviate the pressure between the steering column lock pin and lock plate. Please communicate to the customer this condition is a normal operating characteristic of…
• 10138606Feb 10, 2014Visibility (wipers, defrost, mirrors), Equipment. This warranty administration bulletion provides the dealer technician information and guidelines for claiming a windshield.
• 10111897Feb 4, 2014Engine, Equipment. This Preliminary Information communication provides information to the technician about vehicles that have extended or long crank time during cold ambient air temperatures. Direct Injection systems run at higher pressures, and the mechanical pump on the engine must build up the required pressure before the first injection event occurs. Direct Injection engines may have slightly longer cold crank times than that of…
• 10111893Feb 4, 2014Fuel system, Engine. This Preliminary Information communication provides information to the technician about vehicles that have an engine extended or long crank time during ambient air temps of ?18° Celsius (0° Fahrenheit) or colder when using E85 fuel. Technician will need to use Global Diagnostic System 2 to determine the actual ethanol content of the fuel. Adding regular fuel to the tank may help resolve the concern.

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