2008 GMC C Series Technical Service Bulletins

528 technical service bulletins (TSBs) are on record for the 2008 GMC C Series. 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.

• 10137828Jul 11, 2014Equipment. This information bulletin provides the dealers on how to submit a product information report.
• 10140353Jul 1, 2014Equipment. This information for Warranty administration - Changes the Service Policy and Procedures Section 1.6.2.11 and list the requirements for the dealer to comply.
• 10137818Jul 1, 2014Equipment. This information for Warranty administration - Changes the Service Policy and Procedures Section 1.6.2.11 and list the requirements for the dealer to comply.
• 10248444Jun 30, 2014Equipment. Vehicle Recalls
• 10126308Jun 26, 2014Suspension. This informational bulletin was created to aid the technician in diagnosing the difference between a shock or strut that has a fluid residule from a possible external source from a leaking shaft seal.
• 10126301Jun 24, 2014Equipment. This preliminary bulletin explains to the technician to use the vin when reprogramming the radio using the techline/service programming systems.
• 10125956Jun 16, 2014Equipment. This Preliminary Information communication provides information to the technician about vehicles that may not receiving all channels on the XM band. Technician will need to use a scan tool and verify current Digital Radio Receiver Status under Data Display. Technician will need to look at the second line labeled Digital Radio Receiver Status will display a number of 00 - 04. Technician will repair per the status…
• 10125953Jun 16, 2014Equipment. This Preliminary Information communication provides information to the technician on the programming and activation of the OnStar system. For many 2008 and prior model year GM vehicles, the programming is performed using the Tech 2 and the activation is initiated by a Service Programming System.
• 10126280Jun 13, 2014Equipment. This preliminary bulletin provides a information to the dealer for the requirements need for equipment.
• 10126278Jun 12, 2014Equipment. This informational bulletin provides the dealer with information on what to do when requesting a new key code for the customer.
• 10137919May 19, 2014Equipment. This informational bulletin helps the technician quick reference repairs to bulletins as opposed to replacing parts that may be un necessary.
• 10137914May 16, 2014Equipment. This informational bulletin provides tips on how to care for the interior of the vehicle using products.
• 10137901May 9, 2014Fuel system. This informational bulletin provides the technician with information on what E85 fuel may due to a non E85 vehicle.
• 10135219Apr 22, 2014Exterior lighting. This informational bulletin explains condensation in exterior lights and replacment guidelines for warranty replacement.
• 10135218Apr 22, 2014Equipment. This informational bulletin is to assist with the identification of issues that are not considered warrantable.
• 10111811Apr 18, 2014Electrical system, Equipment. 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.
• 10111810Apr 17, 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.
• 10135201Apr 14, 2014Equipment. This information bulletin provides the technician with additional information on fixing the vehicle right the first time by listing possible concerns to specific vehicles.
• 10250013Apr 1, 2014Electrical system. High Voltage Safety ? High Voltage Disabling
• 10246928Apr 1, 2014Transmission and drivetrain. OnStar Will Not Power Up.
• 10246500Apr 1, 2014Equipment, Air bags. High Voltage Safety ? High Voltage Disabling
• 10137866Mar 17, 2014Equipment. This informational bulletin helps the technician quick reference repairs to bulletins as opposed to replacing parts that may be un necessary.
• 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.
• 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.
• 10246927Mar 1, 2014Transmission and drivetrain. OnStar Will Not Power Up.
• 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.
• 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.
• 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.
• 10138630Feb 18, 2014Equipment, Tires. This informational bulletin explains the use of Nitrogen in GM tires.
• 10138621Feb 17, 2014Equipment. This informational bulletin helps the technician quick reference repairs to bulletins as opposed to replacing parts that may be un necessary.
• 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…
• 10111894Feb 4, 2014Equipment. This Preliminary Information communication provides information to the technician that General Motors and General Motors of Canada Company do not support cross border sales. The General Motors of Canada Customer Care Centre is the sole authorized provider of a certification confirmation letter which helps our customers identify if their vehicles meets the required USA regulatory standards necessary for importation…
• 10245771Feb 1, 2014Wheels, Other or unknown, Tires. Proper Wheel Installation and Wheel Torque Techniques
• 10190932Feb 1, 2014Equipment, Wheels. Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Only cosmetic refinishing of the wheel's coatings, using recommended procedures, is allowed. Evaluating Damage In evaluating damage, it is the GM Dealer's responsibility to inspect the wheel for corrosion, scrapes…
• 10190931Feb 1, 2014Equipment, Wheels. Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels. GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Only cosmetic refinishing of the wheel's coatings, using recommended procedures, is allowed. Evaluating Damage In evaluating damage, it is the GM Dealer's responsibility to inspect the wheel for corrosion, scrapes…
• 10055254Feb 1, 2014Engine. Isuzu: information concerning the installation of the fuel injector pipes into a long block assembly. 1999 - 2002 isuzu fsr/ftr/fvr, 1999 - 2009 chevrolet or gmc t6500/t7500/t8500, 2000 - 2004 chevrolet or gmc wt5500, 2000 - 2004 isuzu frr, 2003 - 2009 chevrolet or gmc c6500/c7500/c8500, 2004 - 2009 isuzu ftr/fvr/fxr, 2005 - 2007 isuzu htr/hvr/hxr, 2005 - 2010 chevrolet or gmc w3500/w4500/w5500, 2005 - 2015 isuzu…
• 10044166Feb 1, 2014Engine cooling. Isuzu (gmc, chevrolet): diesel engines equipped with egr cooler was diagnose for leaks with an egr cooler tester consisting of pressure regulator. Models isuzu n series-2005-2015, gmc/chevrolet w series 2005-10, isuzu f series 2007-09 and gmc/chevrolet t and c series 2007-09. *pe updated 04/29/2014
• 10137784Jan 31, 2014Equipment. This informational bulletin provides information for the dealer technician to gather as much information to help aid Engineers by completely filling out requested reports.
• 10111997Jan 16, 2014Equipment. This Preliminary Information communication advises the technician that a noise or a vibration in the vehicle that seems to be abnormal may not have been there when the vehicle was purchased. Technician should look for Non - General Motors aftermarket accessories installed on the vehicle that can cause these issues.
• 10137777Jan 14, 2014Equipment, Electrical system. This Informational bulletin explains the warranty and policy exchange program for electronic devices and products, what can be approved by TAC and where the electronic parts can be returned to.
• 10137775Jan 8, 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…
• 10137773Jan 2, 2014Equipment. This warranty administration bulletin provides information on GM?s policy for comprehensive courtesy transportation to its customers.
• 10137772Jan 2, 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…
• 10190934Jan 1, 2014Equipment, Body and structure. Underbody Component Corrosion The following information may be helpful when addressing underbody component corrosion with customers. Some customers may comment that one or more of their vehicle's underbody components are showing some form of corrosion. This corrosion may be red in appearance (rust) if the component is steel, forged iron or cast iron. This corrosion may also be grey or white in color if the…

← All problems reported for the 2008 GMC C Series