2008 Hummer H2 Technical Service Bulletins

942 technical service bulletins (TSBs) are on record for the 2008 Hummer H2. 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.

• 10047220Dec 1, 2013Engine. Hummer/cadillac, chevrolet, gmc: see document search button for owner letter. Engine may have reduced power, running rough, and possible have malfunction indicator lamp on, due throttle position sensor. Models 2008-2010 cadillac escalade, esv, ext, chevrolet trailblazer, avalanche, express, silverado, suburban, tahoe, colorado, gmc envoy, savana, sierra, yukon, yukon xl, canyon, hummer h2, h3, h3t. 2008-2009 saab…
• 10118889Nov 27, 2013Electrical system. This preliminary bulletin provides information on Service Programming System (SPS) Errors (E4398, E4399, E4403, E4404, E4413, E4414, E4423 or E4491).
• 10118880Nov 19, 2013Equipment. This informational bulletin provides an update for 13-00-89-004C to include updated information.
• 10118866Nov 11, 2013Equipment. This informational Bulletin provides a revision for 00-06-01-026D to add the 2014 model year.
• 10118862Nov 8, 2013Electrical system, Visibility (wipers, defrost, mirrors). This preliminary bulletin provides a pre-inspection symptom list before preforming any repairs to any of windows for noises or performance.
• 10118859Nov 7, 2013Equipment. This informational bulletin provides a revision for 04-06-04-047K to add the 2014 model year.
• 10118858Nov 7, 2013Equipment. This informational bulletin provides a revision for 04-06-04-047 to add the 2014 model year.
• 10118842Nov 1, 2013Equipment. This informational Bulletin provides a revision for 10-08-110-001 to add the 2012-2014 model years.
• 10112331Nov 1, 2013Engine cooling. This Preliminary Information communication provides information to the technician about engine block of possible cylinder bore damage, scoring or out of round as the possible cause of engine oil consumption, misfire, cylinder leakage or blow by. Technician will need to inspect the engine for Cylinder damage or scoring, An out of round cylinder bore, Dirt intrusion, and Catalytic Converter failure.
• 10112329Nov 1, 2013Equipment. This Preliminary Information communication provides information to the technician about customers that may complain of various concerns when using Bluetooth components. Technician should use the Preliminary Information to gather information from the customer on their Bluetooth device and the concern they are having before calling General Motors Technical Assistance Center.
• 10054243Nov 1, 2013Body and structure, Visibility (wipers, defrost, mirrors). General motors: the windows, front and rear, would bind, poor fit, misalignment, makes rattle or squeaking noises, moves slowly and is inoperative. Model 2008-2014 vehicles and trucks.
• 10112400Oct 9, 2013Transmission and drivetrain, Engine cooling. This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have Service Engine Soon Malfunction Indicator Lamp on and a constant engine misfire. If Service Information diagnosis isolates no compression on the misfiring cylinder(s) with 100% leakage into the crankcase, perform the following steps as necessary before disassembling the engine.
• 10112399Oct 8, 2013Equipment. 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.
• 10112382Oct 1, 2013Visibility (wipers, defrost, mirrors). This Preliminary Information communication provides information to the technician about the percentage of UV protection or tint offered by the windshield or side glass. Technician should be advised Windshield reduces UV rays down to 4% or less. Front side door glass reduces UV rays down to 35% or less. Windshields are SOLAR glass with a light transmittance of >/=70%. Front door glass are Solar glass with a light…
• 10113256Sep 18, 2013Electrical 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.
• 10113227Sep 3, 2013Equipment. 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 Partech for assistance.
• 10113506Aug 28, 2013Tires. This warranty administration bulletin provide policy information on GM of Canada New Vehicle Limited Warranty Tire Program and Global Warranty Management (GWM) Submission Information.
• 10113502Aug 26, 2013Transmission and drivetrain, Brakes, Electrical system, Equipment, Engine…. This warranty administration bulletin provide policy information on a revised customer concern not duplicated/verified labor operation numbers and how to submit CCND.
• 10113199Aug 20, 2013Electrical system. This Preliminary Information communication provides information to the technician about vehicles that the OnStar system will not connect. Technician should record module info per the latest version of PIC4310 and contact General Motors Technical Assistance Center.
• 10113492Aug 15, 2013Seat belts. This informational bulletin provides information on availability for the seat belt extender.
• 10113188Aug 12, 2013Steering. This Preliminary Information communication provides information to the technician vehicles with a slight rough idle. Technician should compare the concern with a like vehicle. If the concern is worse than a like vehicle, technician should follow published Service Information diagnosis and repair as necessary.
• 10113483Aug 5, 2013Tires. This warranty administration bulletin provide policy information new tire warranty program and global warranty management submission information.
• 10113177Aug 5, 2013Engine, Electrical system. This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on, engine misfire, and/or engine noise. Technician may find Diagnostic Trouble Codes P0300-P0308.
• 10130578Jul 18, 2013Electrical system. This informational bulletin provides information for warranty codes that are generated by EL-50313 midtronics GR8 battery tester/charger.
• 10130572Jul 16, 2013Equipment. This preliminary information bulletin provides information on poor or no transmitter range when using the remote keyless entry (RKE) and/or remote vehicle start (RVS).
• 10130570Jul 16, 2013Equipment. This informational bulletin provides information for the PQC assembly replacement process.
• 10130567Jul 12, 2013Equipment. This informational bulletin provides information on key codes security rules and information on GM key code look up application.
• 10130562Jul 9, 2013Equipment. This informational bulletin provides information on key code security and information on GM key code look up applications.
• 10114175Jun 28, 2013Equipment, Electrical system. 11273A - Special Coverage (additional population added). The throttle position sensor may cause the engine to run rough and cause the malfunction indicator lamp and/or and Engine Reduced Power message to illuminate. If this occurs, it could result in reduced engine power. If the condition occurs within the stated terms, dealers will replace the throttle position sensor and reprogram the engine control module.
• 10059928Jun 28, 2013Equipment, Engine. Summary to be provided on a future date.
• 10113059Jun 24, 2013Engine cooling. This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on at low mileage. Technician may find Diagnostic Trouble Codes P0420 and or P0430 stored. Technician should be advised that the catalytic converter efficiency Diagnostic Trouble Codes P0420 and P0430 are disabled for the first…
• 10134741Jun 20, 2013Equipment. This technical bulletin provides a revision for 04-00-89-015D to update content and incorporate the U.S. version of Bulletin 12-00-89-003.
• 10134739Jun 19, 2013Equipment. This technical bulletin provides a revision for 03-00-89-0061I to add the 2014 model year and Transport Mode heading.
• 10134736Jun 18, 2013Seat belts. This technical bulletin provides a revision of 05-09-40-002F to add the 2013-2014 model years.
• 10113038Jun 10, 2013Engine. This Preliminary Information communication provides information to the technician about vehicles that have low oil pressure, no oil pressure, and/or engine noise. Technician will need to replace the oil pump, flush the oil cooler lines.
• 10134627Jun 5, 2013Electrical system. This technical service bulletin provides a revision for 07-08-49-020G to add the 2014 model year and update model list.
• 10134625Jun 4, 2013Steering. This technical bulletin provides a revision for 12-02-32-002 to add the 2013-2014 model years, add noise as a possible condition and add a Note in the Instructions section.
• 10250100Jun 1, 2013Engine cooling. Special Coverage Adjustment ? Throttle Position Sensor Replacement
• 10246587Jun 1, 2013Vehicle speed control. Special Coverage Adjustment ? Throttle Position Sensor Replacement
• 10139080May 31, 2013Brakes, Equipment. This informational bulletin provides information for Disc Brake Warranty Service and Procedures.
• 10139078May 30, 2013Equipment, Transmission and drivetrain. This informational bulletin provides information for Automatic Transmission Oil Cooler Flow Test Essential Tool J-45096 TransFlow.
• 10139074May 29, 2013Latches, locks and linkages, Equipment. This preliminary informational bulletin provides a revision for PI0011C to add the 2013-2014 model years and update Warranty Information.
• 10139067May 23, 2013Equipment. This informational bulletin provides a revision for 11-00-89-005D to add additional Mandatory Minimum Tables and additional information concerning Policy decision making.
• 10139066May 23, 2013Engine cooling, Equipment. This informational bulletin provides information for Engine Squealing Type Noise on Start-up or Vibration Condition.
• 10113106May 23, 2013Engine. This Preliminary Information communication provides information to the technician about vehicles that have low oil pressure, no oil pressure, and/or engine noise. Technician will need to replace the oil pump, flush the oil cooler lines.
• 10139061May 21, 2013Equipment, Fuel system, Engine cooling. This informational bulletin provides a revision 11-00-90-001A to add the 2014 model year. Also, a bullet was added to the dexos 2? section with information on the 2014 Cruze diesel.
• 10139059May 21, 2013Equipment. This informational bulletin provides a revision for 02-08-98-002C to add the 2010-2013 model years and revise the Approved Refinish Materials booklet information.
• 10139057May 20, 2013Equipment. This informational bulletin provides a revision for 09-00-89-008 to add model years, update the Labor Operation Information and Transaction Submissions Procedure and general content updates.
• 10139056May 20, 2013Equipment. This preliminary informational bulletin provides a revision of PI0592A to add the 2013 and 2014 model years.
• 10139052May 17, 2013Wheels, Equipment. This informational bulletin provides a revision for 07-03-10-015B to add the 2013-2014 model years and remove the Saab Warranty Information.

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