2012 GMC Yukon Denali XL Technical Service Bulletins

1,481 technical service bulletins (TSBs) are on record for the 2012 GMC Yukon Denali XL. 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.

• 10126221Dec 8, 2014Electrical system. This warranty informational bulletin advised the technician that when performing a wiring repair, more information is required.
• 10114760Dec 3, 2014Electrical system. This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B101D stored in Telematics Communication Interface Control Module. Technician will need to call General Motors Technical Assistance Center for further assistance. If the Diagnostic Trouble Code B101D has a sym 37 set please refer to the latest version of PIC5492.
• 10247716Dec 1, 2014Equipment, Electrical system. J-35616-64B Terminal Test Probe / Replacement Terminal / Terminated Lead.
• 10247061Dec 1, 2014Electrical system. J-35616-64B Terminal Test Probe / Replacement Terminal / Terminated Lead.
• 10245938Dec 1, 2014Electrical system. OnStar Module Does Not Support All B101D Symptom Codes.
• 10114272Nov 26, 2014Equipment. This technical bulletin provides a procedure to correct the customers concern to replace the left side valve cover and active fuel management oil deflector to reduce oil consumption.
• 10114271Nov 25, 2014Equipment. This warranty administration bulletin provide policy information of the JOB CARD, for a repair on vehicles and what is acceptable - customer authorization; Service manager approvals and transaction authorization; Details of concern, cause and correction; Labor Time; Technician ID and acoutablity of labor time; Proper documentation and retension of warranty parts; Accurate sublet charges and receipts; Add on…
• 10114270Nov 25, 2014Equipment. This warranty bulletin provides labor operation numbers for customer concerns that can't be duplicated.
• 10114759Nov 24, 2014Equipment. This Preliminary Information communication provides information to the technician about what XM offerings are available for vehicles. A dealer or customer can access the website listed below for vehicle specific XM offerings and availability.
• 10114748Nov 24, 2014Electrical system. This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B101D-37 history in the Vehicle Communication Interface Module or telematics communication interface control module. Engineering has determined that this code will only display in history on the scan tool and will not cause issues with OnStar system operation.
• 10114746Nov 21, 2014Engine. This Preliminary Information communication provides information to the technician about vehicles that have a Malfunction Indicator Lamp on or engine misfire, rough idle, extended crank, or crank no start in some cases. Technician will need to perform published Service Information diagnostics. If technician finds carbon an upper engine and valve cleaning should be performed.
• 10114267Nov 21, 2014Fuel system. This informational bulletin provides information on top tier fuels and what brands are available.
• 10114265Nov 20, 2014Electrical system. This technical bulletin provides a procedure to check the headlamp wiring connector and replace if damaged.
• 10114264Nov 19, 2014Electrical system, Transmission and drivetrain. This preliminary bulletin provides a procedure to reprogram the tcm to correct the customers concern of a harsh, tie up feeling from a 6-4 downshift.
• 10114262Nov 18, 2014Brakes. This informational bulletin explains a normal condition for what and how the drive line can clunk.
• 10114260Nov 18, 2014Forward collision avoidance. This information bulletin explains the use of drilling high strength steel in a collision repair and the GM recommended CryoCobalt Drill bit.
• 10114723Nov 13, 2014Electronic stability control, Other or unknown. This Preliminary Information communication provides information to the technician about vehicles that have an unwanted Stability Activation and/or a Service Stability message on the Driver Information Center. Technician may find a Diagnostic Trouble Code C0710. Technician should inspect for vehicles modifications before any in-depth diagnostics are performed.
• 10114254Nov 12, 2014Engine cooling. This technical bulletin provides a procedure to correct the customers concern to replace the left side valve cover and active fuel management oil deflector to reduce oil consumption.
• 10114719Nov 11, 2014Vehicle speed control. This Preliminary Information communication provides information to the technician about vehicles that the speedometer needle appears to be inaccurate. Dealer should advise the customer the specification for speedometer needle accuracy is +/- 2 MPH at any given speed when looking straight at the needle.
• 10114245Nov 7, 2014Electrical system. This informational bulletin was created to help technician identify non GM calibrations for the gasoline engines and the damages that may be caused by aftermarket calibrations
• 10114241Nov 5, 2014Electrical system. This informational bulletin was created to help technician identify non GM calibrations for the gasoline engines and the damages that may be caused by aftermarket calibrations
• 10114705Nov 4, 2014Equipment. This Preliminary Information communication provides information to the technician about vehicles that are travelling from Canada to the United States. While in the United States they are unable to receive Turn-by-Turn directions. Due to the existing cellular provider not having roaming agreements in areas outside of Canada to support transmitting of the packet data required for Turn-By-Turn feature to operate. The…
• 10114240Nov 3, 2014Equipment. This informational bulletin helps the technician quick reference repairs to bulletins as opposed to replacing parts that may be un necessary.
• 10114239Nov 3, 2014Equipment. This warranty bulletin clarifies the use of dealer empowerment to satisfy the customer.
• 10252163Nov 1, 2014Equipment. XM Audio Traffic And Travel Link Availability And Operation.
• 10250082Nov 1, 2014Transmission and drivetrain. Information on Driveline Clunk Noise
• 10247748Nov 1, 2014Electrical system. Speedometer Needle Accuracy Information.
• 10247093Nov 1, 2014Electrical system. Speedometer Needle Accuracy Information.
• 10247063Nov 1, 2014Visibility (wipers, defrost, mirrors). A/C Blows Warm Or Poor Performance.
• 10246569Nov 1, 2014Transmission and drivetrain. Information on Driveline Clunk Noise
• 10245951Nov 1, 2014Equipment. Canadian Customers Unable To Place Calls And Turn By Turn Inoperative In The United States.
• 10245741Nov 1, 2014Equipment. dealer Empowerment Labor Operations and Customer Enthusiam
• 10135356Oct 30, 2014Equipment. This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.
• 10114328Oct 30, 2014Equipment. This information for Warranty administration - Changes the Service Policy and Procedures Section 1.6.2.11 and now is refered to Article 3.2.9 of the 1st addition manual for details of Technician Identification and Accounting of Labor Time
• 10114319Oct 28, 2014Transmission and drivetrain. This preliminary bulletin provides a procedure to reprogram the tcm to correct the customers concern of a harsh, tie up feeling from a 6-4 downshift.
• 10114315Oct 27, 2014Equipment. This information bulletin explains how to measure for oil consumpsion and possible reasons for loss of oil.
• 10114309Oct 23, 2014Visibility (wipers, defrost, mirrors). This informational bulletin explains how to care for wiper blades.
• 10135342Oct 20, 2014Engine cooling. This Preliminary Information communication provides information to the technician about gasoline powered cars, mid-size trucks, light duty trucks, and heavy duty trucks with premature catalytic converter failures. It is recommended to inspect for a poor crimp on the grounds ring terminal at the engine block for the bank with the concern and repair the wire.
• 10135337Oct 17, 2014Electrical system. This Preliminary Information communication provides information to the technician about vehicles that are travelling from Canada to the United States. While in the United States they are unable to receive Turn-by-Turn directions. Due to the existing cellular provider not having roaming agreements in areas outside of Canada to support transmitting of the packet data required for Turn-By-Turn feature to operate. The…
• 10114299Oct 17, 2014Equipment. This informational bulletin provides a quick guide to updating which model vehicle after replacing the IPC.
• 10114296Oct 16, 2014Equipment. This warranty administration bulletin provide policy information of the JOB CARD, for a repair on vehicles and what is acceptable - customer authorization; Service manager approvals and transaction authorization; Details of concern, cause and correction; Labor Time; Technician ID and acoutablity of labor time; Proper documentation and retension of warranty parts; Accurate sublet charges and receipts; Add on…
• 10114292Oct 13, 2014Electrical system. This preliminary bulletin provides a procedure on how to cold crank test a battery in a vehicle.
• 10135322Oct 10, 2014Engine cooling. This Preliminary Information communication provides information to the technician about gasoline powered cars, mid-size trucks, light duty trucks, and heavy duty trucks with premature catalytic converter failures. It is recommended to inspect for a poor crimp on the grounds ring terminal at the engine block for the bank with the concern and repair the wire.
• 10135321Oct 10, 2014Equipment. This Preliminary Information communication provides information to the technician about vehicles that show an error message when a media disc is installed. Technician will need to check the Regular Production Option Code list to verify if the disc is compatible.
• 10114281Oct 6, 2014Fuel system. This informational bulletin states that it no longer valid and refers to a new bulletin.
• 10114280Oct 6, 2014Equipment. This informational bulletin provides information on Inappropriate Warranty Claims Submitted for Damaged Radios and IPCs
• 10112251Sep 24, 2014Engine cooling. This Preliminary Information communication provides information to the technician about finding needle bearings during an oil change. Technician will gain access to the roller rockers to inspect them. Only replace the roller rocker that is missing needle bearings. Be sure to clean the oil drains to retrieve the needle bearings. Each roller rocker has 66 bearings.
• 10150637Sep 23, 2014Equipment. This informational bulletin provides information on how to use floor mats.
• 10142226Sep 23, 2014Equipment. This informational bulletin provides information on how to use floor mats.
• 10137805Sep 23, 2014Equipment. This informational bulletin provides information on how to use floor mats.

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