2003 Hummer H2 Technical Service Bulletins

490 technical service bulletins (TSBs) are on record for the 2003 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.

• 10137471Nov 26, 2012Wheels. This informational bulletin provides a description of the proper wheel installation and proper wheel torque techniques used to install wheels onto vehicles
• 10112600Nov 26, 2012Transmission and drivetrain. This Preliminary Information communication provides information to the technician with the axel setup information from American Axle Manufacturing. Technician should be advised that the maximum pinion shim to be used or stacked behind the pinion is 0.050?, and the minimum pinion shim is 0.020? for an 8.6 axle. The range for available pinion depth shims for the 10.5? axle is 0.006? to 0.024?. When setting the…
• 10126196Nov 13, 2012Equipment. This informational bulletin provides information and rules for GM keycode look up applicationa dn the key code security rules and regulations for Canada only.
• 10126200Nov 12, 2012Equipment. This informational bulletin provides a single point reference and strategy document to aid in reducing customer comebacks, and the possibility of buyback situations by outlining specific guidelines, strategy and forms that will assist with this goal, by identifying, clarifying and documenting customer concerns accurately at each service visit.
• 10126198Nov 12, 2012Equipment. This informational bulletin provides a list of newly released PI and Bulletins in regards to recent released vehicles so that vehicles can be fixed right the first time in for service.
• 10112560Nov 9, 2012Brakes. This Preliminary Information communication provides information to the technician about brake rotors on new vehicles and replacement parts from General Motors Service Parts Operations. Technician should be advised the costing should not be removed from the brake rotor it will wear off with normal brake usage. Dealer should communicate to the customer this condition is a normal operating characteristic of their…
• 10112546Nov 6, 2012Brakes. This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its own at a full turn.
• 10112544Nov 6, 2012Steering, Brakes. This Preliminary Information communication provides information to the technician about vehicles that may have a power steering pump whine noise. Technician will need to flush and refill the power steering system with Lucas Power Steering Fluid with Conditioners. Technician will replace the power steering pump with the latest design if the fluid is not available.
• 10112528Nov 1, 2012Electrical system. This Preliminary Information communication provides information to the technician about vehicles that during battery parasitic drain test, there may be some confusion as to what the normal power consumption reading should be from the OnStar system. Technician should understand the power cycles of the various OnStar systems. All Generation 6, 7, 8, and 9 systems are powered up continuously for 48 hours from ignition…
• 10112494Oct 18, 2012Equipment. This Preliminary Information communication provides information to the technician about installing General Motors Accessory parts. Technician can check Service Information for some accessories. Technician can also contact Partech for assistance.
• 10118626Oct 10, 2012Equipment. This warranty administrational bulletin provides information on Clarification of Use - Dealer Empowerment Labor Operations and Customer Enthusiasm
• 10118619Oct 5, 2012Equipment. This informational bulletin provides information on newly release bulletins used to fi the vehicles in the field the first time.
• 10246951Oct 1, 2012Equipment. Programming And Activation Of Replacement OnStar Modules.
• 10037570Apr 1, 2012Body and structure. Gm: on some truck models there is some frame corrosion. *rm updated on 5/2/2012.
• 10042986Nov 1, 2011Seats. General motors: information provided by bulletin for all 2012 and prior general motor trucks and passenger vehicles regarding the adjustable comfort and custom upholstery of the driver and the passenger head restraint.
• 10036464May 1, 2011Engine cooling. Buick/cadillac/chevrolet/gmc/hummer/pontiac/saab: oil consumption and/or exhaust smoke-possible pcv baffle or lifter concern. Upon inspection, obvious oil will be found in the intake manifold and/or pcv vacuum tube. *pe updated 3/21/11. *pe updated 5/9/11. *pe updated 5/25/11. *pe updated 06/16/2011. *kb updated a second time on 06/16/2011. *kb updated 6/27/11.
• 10028790Nov 1, 2010Brakes. General motors: on all 1988-2009 full size chevrolet/gmc pickups, utilities and vans, the brake pedal will move down or self apply during full lock turns or near full lock turns. Chevrolet astro and gmc safari vans; hummer 2 are included. *pe updated 5/24/11.
• 10032462Aug 1, 2009Steering. Saab/hummer/gm: diagnostic tips/recommendations when power steering pump replacement is necessary. Analysis of returned power steering (ps) pumps that had been replaced for noise, no power assist, no or low pressure and leaking conditions has indicated a high number of no trouble found results. All 1997-2010 vehicles and light trucks; 2010 and prior hummers h2/h3 and saab 9-7x vehicles.
• 10021799Apr 1, 2009Fuel system. Various driveability functions due to clogged fuel injectors, mil/ses dtc's p0171, p0172, p0174, p0300, p1174, p1175. *kb updated 08-15-07. *kb updated 8/4/09.
• 10011124Apr 1, 2009Suspension, Tires. Tire puncture repair procedures for all cars and light duty trucks. 2008 and prior gm passenger cars & light duty trucks (including saturn) and hummer h2, h3 and saab 9-7x. *tt updated. *kb updated 4/11/08. *nj updated 8/4/09.
• 10030106Feb 1, 2009Seat belts. General motors: the seat belt buckles not operating and /or seat belt warning light illumination, as well as difficulty latching and unlatching the buckle or the buckle release button sticking. Affects 2010 and prior gm passenger cars and trucks, including saturn.)
• 10021115Dec 1, 2008Suspension. Information on tire radial force variation (rfv). 2008 and prior gm passenger cars and light duty trucks including 2008 and prior hummer h2, h3 and 2005-08 saab 9-7x and 2000-05 saturn l series and 2003-07 saturn ion. *kb updated 4/11/08. *nj updated 5/27/09.
• 10025770Sep 5, 2008Equipment. Some customers may comment on various hvac concerns including temperature doors defaulting to full hot position or unable to obtain defrost position.
• 10026704Aug 1, 2008Fuel system. Gmc: fuel gauge fluctuation in park or neutral, causing the low fuel light to illuminate.
• 10025148Apr 1, 2008Steering. Clunking noise under hood and can be felt in steering wheel and/or steering column (replace upper intermediate steering shaft [I-shaft] assembly).
• 10012707Feb 1, 2008Engine cooling. Unnecessary engine crankcase and subsystems flushing services, additive recommendations and proper utilization of gm simplified maintenance schedule to enhance customer service experience. 2008 and prior gm cars and trucks. *tt updated 3/31/08.
• 10032850Jan 1, 2008Tires, Equipment. General motors: information on tire radial force variation. Vehicle must be driven before measuring tires on equipment hunter gsp9700 toensure removal of any flatspotting. Models include all gm passenger cars and light trucks, as well as certain hummers, saabs, and saturns.
• 10014497Nov 1, 2007Exterior lighting. Headlamps condensation and replacement guidelines. Kaperii. *tt 1993-2008 gm passenger cars and trucks including saturn. *kb updated 2/26/08.
• 10022914Oct 4, 2007Electrical system. One of the following concerns when programming the mileage or the hours into an exchange instrument panel cluster that is received from an electronic service center (esc).
• 10023218Sep 1, 2007Electrical system. Service alert: concerns with aftermarket fuses in gm vehicles 2008 and prior gm passenger cars and light duty trucks (including saturn)
• 10019884Aug 1, 2007Engine cooling, Fuel system. Usage of e85 fuels in gm vehicles. 1997 - 2008 all gm cars and trucks. 1997 - 2008 all saturn vehicles. *tt updated. *kb updated on 10/22/07.
• 10021447May 1, 2007Tires. Information on proper tire pressure. All gm passenger cars and light duty trucks from 2007 and prior.
• 10021021Feb 22, 2007Engine cooling. Service vme. Supplement to 00-02-35-003l. Update on new I-shaft.
• 10021019Feb 22, 2007Transmission and drivetrain. Slip condition in 2nd, 3rd, or 4th. Damaged 2-4 or 3-4 clutch. *kb updated 10/31/07.
• 10012089Feb 1, 2007Steering. Clunking noise under hood and can be felt in steering wheel. *eh updated *eh updated.
• 10021113Dec 1, 2006Other or unknown. Car and truck fix it right the first time issues. This bulletin includes 2007 and prior passenger cars and trucks including saturn.
• 10021103Dec 1, 2006Transmission and drivetrain. Delayed engagement when shifting into these positions. Park into reverse, nuetral into drive, nuetral into reverse, and park into drive. This bulletin includes all 2000 - 2007 gm light duty trucks.
• 10020874Sep 23, 2006Suspension. Left front axle shaft difficult to remove. Axle differential leak seal shaft.
• 10020763Sep 1, 2006Suspension. Information on proper wheel changing procedures and cautions. 2007 and prior gm passenger cars and trucks including saturn.
• 10020762Sep 1, 2006Fuel system. Fuel system treatment plus, fuel sending unit corrosion and fuel system deposits. 2007 and prior gm passenger cars and trucks including saturns.
• 10020840May 1, 2006Electrical system. Updated transfer case connector service kit now available for transfer case speed sensor wire harness connector that comes loose or connector retainer clip breaks. 2007 and prior gm light duty trucks.
• 10020832May 1, 2006Electrical system. Instrument panel, body and general wiring harness repair. 2007 and prior gm passenger cars and trucks.
• 10019852Mar 1, 2006Suspension. Revised upper control arm replacement.
• 10018544Jan 6, 2006Seats. Heated seat inoperative or shut off in 30 seconds. Diagnostic trouble codes b2435, b2440, b3606 and/or b1825 set in the drivers seat module.
• 10017395Nov 7, 2005Suspension. Rear air suspension - trim height tool set.
• 10017299Nov 2, 2005Transmission and drivetrain. Electronic transfer case unable to complete shift.
• 10017239Oct 29, 2005Suspension. Rear air suspension in-op dtc c0563.
• 10017190Oct 27, 2005Transmission and drivetrain. 4l60e, 4l65e replacement valve body gaskets does not seem to fit.
• 10017176Oct 27, 2005Suspension. Service air suspension message after replacing the air suspension compressor assembly from a single stage compressor to a dual stage compressor. May also have a current or history code c0660 and/or c0712.
• 10017144Oct 26, 2005Steering. Lack of steering assist when stopped or during parking lot type maneuvers. 99 - 05 chevrolet/gmc/cadillac/hummer h2 all full size trucks utilities and vans.

← All problems reported for the 2003 Hummer H2