2012 GMC Sierra Denali Technical Service Bulletins

1,703 technical service bulletins (TSBs) are on record for the 2012 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.

• 10137817Sep 30, 2014Suspension. This technical bulletin provides a procedure to add a lubricant to the rear leaf springs to correct the customers concern of a squeaking noise from the rear suspension.
• 10112259Sep 29, 2014Equipment, Fuel system. This Preliminary Information communication advises the technician that the Diesel Oxidation Converter part numbers 15231895, 22768282, 22770967, 22887212, 22893734 and 22977171 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.
• 10112258Sep 29, 2014Fuel system, Equipment. This Preliminary Information communication advises the technician that the Diesel Oxidation Converter part numbers 15231895, 22768282, 22770967, 22887212, 22893734 and 22977171 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.
• 10150640Sep 25, 2014Body and structure. This preliminary bulletin provides information and a procedure for repairing rusted frames caused by the wax coating peeling off.
• 10142231Sep 25, 2014Body and structure. This preliminary bulletin provides information and a procedure for repairing rusted frames caused by the wax coating peeling off.
• 10137810Sep 25, 2014Body and structure. This preliminary bulletin provides information and a procedure for repairing rusted frames caused by the wax coating peeling off.
• 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.
• 10112247Sep 23, 2014Electrical system, Body and structure, Interior lighting. This Preliminary Information communication provides information to the technician about the roof beacon switch. The roof beacon switch will be left disconnected from the assembly plant. When a roof beacon light is added technician will need to plug the harness into the switch.
• 10150634Sep 19, 2014Equipment. This informational bulletin provides the technician on what to do if the customer has a navagation concern and submit a feedback form to the GM navigation disc center website.
• 10150632Sep 19, 2014Fuel system. This informational bulletin provides information on top tier fuels and what brands are available.
• 10142222Sep 19, 2014Equipment. This informational bulletin provides the technician on what to do if the customer has a navagation concern and submit a feedback form to the GM navigation disc center website.
• 10137801Sep 19, 2014Equipment. This informational bulletin provides the technician on what to do if the customer has a navagation concern and submit a feedback form to the GM navigation disc center website.
• 10137799Sep 19, 2014Fuel system, Equipment. This informational bulletin provides information on top tier fuels and what brands are available.
• 10150631Sep 18, 2014Electrical system. This informational bulletin provides information for an available BCM calibrations that would restore bulb outages when using a second stage manufacturer
• 10150630Sep 18, 2014Equipment, Engine cooling. This preliminary bulletin provides information on how to check for ice and/or snow build up and to install a radiator cover to correct the customers concern of reduced engine power and service engine message on.
• 10142215Sep 18, 2014Engine cooling. The purpose of this document is to provide the Service Personnel with a guide to determine which Service Information documents and scan tool parameters to reference when encountering an: Exhaust Fluid Quality Poor Message Displayed, and a Reductant Fluid Quality Test Status that will Pass, Time Out, Fail or Interrupt and other DEF Messages that may be observed.
• 10137798Sep 18, 2014Exterior lighting. This informational bulletin provides information for an available BCM calibrations that would restore bulb outages when using a second stage manufacturer
• 10137794Sep 18, 2014Engine cooling. The purpose of this document is to provide the Service Personnel with a guide to determine which Service Information documents and scan tool parameters to reference when encountering an: Exhaust Fluid Quality Poor Message Displayed, and a Reductant Fluid Quality Test Status that will Pass, Time Out, Fail or Interrupt and other DEF Messages that may be observed.
• 10150628Sep 17, 2014Equipment. This informational bulletin ask the dealers for digital pictures to better enhance field reports only.
• 10142211Sep 17, 2014Equipment. This informational bulletin ask the dealers for digital pictures to better enhance field reports only.
• 10137790Sep 17, 2014Equipment. This informational bulletin ask the dealers for digital pictures to better enhance field reports only.
• 10150627Sep 16, 2014Equipment. This information bulletin provides the dealers on how to submit a product information report.
• 10150626Sep 16, 2014Equipment. This informational bulletin provides additional information to the technicians and how to submit a field product report.
• 10142208Sep 16, 2014Equipment. This information bulletin provides the dealers on how to submit a product information report.
• 10142207Sep 16, 2014Equipment. This informational bulletin provides additional information to the technicians and how to submit a field product report.
• 10137787Sep 16, 2014Equipment. This information bulletin provides the dealers on how to submit a product information report.
• 10137786Sep 16, 2014Equipment. This informational bulletin provides additional information to the technicians and how to submit a field product report.
• 10112228Sep 15, 2014Fuel system, Engine cooling. This Preliminary Information communication provides information to the technician about vehicles that have a Malfunction Indicator Lamp on. Technician may find a P0420, P24A0 and/or P2463 set. Technician should use published Service Information diagnostics for the Diagnostic Trouble Code. If the diagnostic leads to diagnosis or replacement of the Q57 Indirect Exhaust After treatment Fuel Injector, document all of…
• 10138703Aug 28, 2014Engine cooling, Equipment. This informational bulletin advises of a new testing tool for EGR cooling pressure tester.
• 10138702Aug 28, 2014Engine cooling, Fuel system. This informational bulletin provides additional information on DEF filling, frozen tank and general information.
• 10138701Aug 28, 2014Engine cooling, Fuel system. This informational bulletin provides general information and helpful guidelines to use when diagnosing and repairing diesel exhaust fluid related DIC warnings and messages.
• 10138697Aug 26, 2014Engine, Electrical system, Equipment. This informational bulletin provides additional information on identifying duramax aftermarket power up devices that may cause damage to the engine and not covered under warranty.
• 10138696Aug 26, 2014Equipment, Engine cooling, Fuel system. This informational bulletin explains possible normal diesel engine noises.
• 10138693Aug 25, 2014Equipment, Electrical 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.
• 10138692Aug 25, 2014Equipment. This informational bulletin provides information to the dealers on properly maintaining vehicles in inventory.
• 10138688Aug 21, 2014Engine cooling, Equipment. This preliminary informational bulletin was created to inform Service Agents or Dealers, they may be charged back for parts and labor due to the turbo-chargers are being returned to the Warranty Parts center damaged, improperly assembled or missing parts and advising to properly package the complete turbochargers.
• 10138685Aug 20, 2014Tires, Electrical system. This preliminary bulletin provides a procedure to test and replace the remote transmitter to correct the customers concern of poor range, TPM indicator on.
• 10138682Aug 18, 2014Equipment. This preliminary bulletin provides a diagnostic tip to install a temporary dowl rod to perform an alignment.
• 10138681Aug 18, 2014Tires, Equipment. This informational bulletin provides the technician with information on tire radial force variations and how to use it.
• 10138679Aug 18, 2014Equipment, Steering. This technical bulletin provides a procedure to repair any power steering leak that may be caused from extremely low temperatures and use the recommended fluid.
• 10112170Aug 18, 2014Fuel system, Engine cooling. This Preliminary Information communication provides information to the technician about vehicles that have a Malfunction Indicator Lamp on. Technician may find a P0420, P24A0 and/or P2463 set. Technician should use published Service Information diagnostics for the Diagnostic Trouble Code. If the diagnostic leads to diagnosis or replacement of the Q57 Indirect Exhaust After treatment Fuel Injector, document all of…
• 10112169Aug 15, 2014Engine cooling, Fuel system. This Preliminary Information communication provides information to the technician about vehicles that may have "Exhaust Fluid Low", "Exhaust Fluid Empty - Refill Now", "Exhaust Fluid Range: XXX" or "Service Exhaust Fluid - See Owners Now" on the Driver Information Center. If the technician is working on 2010 and 2011 model years campaign 11001 has now been released.
• 10112168Aug 15, 2014Engine cooling. This Preliminary Information communication provides information to the technician about vehicles with Service Engine Soon Malfunction Indicator Lamp. Technician may find Diagnostic Trouble Code P0101. Technician should follow published Service Information diagnostics for any Diagnostic Trouble Codes that are set.
• 10112167Aug 15, 2014Engine. This Preliminary Information communication provides information to the technician on vehicles that may have an intermittent high idle. If a technician has duplicated, or the customer description aligns with the speeds mentioned in the idle speed description tables, the idle speed should be considered a normal characteristic of current vehicle design.
• 10112163Aug 13, 2014Engine cooling. This Preliminary Information communication advises the technician that vehicles with engine Regular Production Option Code LGH or LML may have an Exhaust Fluid Quality Poor message displayed on the Driver Information Center. Technician will need to complete the current Service Information diagnostic for any current Diagnostic Trouble Codes or symptoms found.
• 10112160Aug 8, 2014Equipment. This Preliminary Information communication provides information to the technician about installing General Motors Accessory pats. Technician can check Service Information for some accessories. Technician can also contact Partect for assistance. Technician can also contact Techline Customer Support Center for programming issues.
• 10138671Aug 7, 2014Equipment, Visibility (wipers, defrost, mirrors). This preliminary bulletin provides a procedure to replace the windshild to correct the customers concern of a loose mirrior and/or bracket fell off.

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