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Service bulletins for the 2008 Hummer H2

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

944 on file from NHTSA, as of 2026-10-19.

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Bulletins, newest first
PIT45502008-05-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). LOSS OF HIGH SPEED LAN COMMUNICATIONS. *NJ
0503100032008-04-12. Service bulletin. WHEELS:RIM. LOW TIRE PRESSURE, LEAKING CAST ALUMINUM WHEELS (REPAIR WITH ADHESIVE SEALANT). 2008 AND PRIOR GM PASSENGER CAR AND LIGHT DUTY TRUCKS (INCLUDING SATURN) AND HUMMER H2, H3 AND SAAB 9-7X WITH CAST ALUMINUM WHEELS. *NJ UPDATED 10/23/09. *PE
PIP43042008-04-07. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. DTC P0878, P2714, P2723, TRANSMISSION SLIPS IN 1ST, 2ND, 3RD, OR 4TH GEARS AND/OR LONG GARAGE SHIFTS TO DRIVE, EQUIPPED WITH A 6L50 (MYB), 6L80 (MYC), OR 6L90 (MYD) TRANSMISSION. *NJ
PIT35692008-04-07. Service bulletin. TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. LOW TIRE LIGHT ON AND/OR DIC CHECK TIRE PRESSURE MESSAGE WHEN COLD, WITH RPO UJ6. *NJ
PIP43212008-04-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. OIL LEAK AT REAR OF ENGINE. EQUIPPED WITH A 4.8, 5.3, 6.0 OR 6.2 V8 ENGINE. *NJ
06-06-04-0352008-03-31. Service bulletin. FUEL SYSTEM, GASOLINE. USE OF E85 FUELS IN VEHICLES NOT CERTIFIED BY GM AS BEING FLEXFUEL COMPATIBLE / AFTERMARKET CONVERSION OF VEHICLES TO OPERATE ON E85 FUELS. 2008 & PRIOR GM PASSENGER CARS AND TRUCKS NOT FLEXFUEL (E85) COMPATIBLE (INCLUDING SATURN), HUMMER H2, H3, ALSO 2005-08 SAAB 9-7X. *NJ
0708450022007-11-03. Service bulletin. ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS. SERVICE ALERT: CONCERNS WITH AFTERMARKET FUSES IN GM VEHICLES 2008 AND PRIOR GM PASSENGER CARS AND LIGHT DUTY TRUCKS (INCLUDING SATURN) *NJ
0706010162007-10-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. INFORMATION ON INTERNAL ENGINE NOISE OR DAMAGE AFTER OIL FILTER REPLACEMENT. MODELS - 2008 AND PRIOR PASSENGER CARS AND TRUCKS (INCLUDING SATURN AND SAAB) AND PRIOR HUMMER H2, H3. *NJ
43132007-10-04. Service bulletin. VISIBILITY:REAR WINDOW WIPER/WASHER:SWITCH/WIRING. REAR WIPER SWITCH OPERATION WITH REAR WINDOW WIPER (RPO C25). *NJ
SB-0706040192007-09-21. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. INTERMITTENT MIL/SES, DTC P2138 WITH REDUCED ENGINE POWER (REPAIR INSTRUMENT PANEL (IP) TO BODY HARNESS CONNECTOR). 2005-2008 GM PASSENGER CARS AND LIGHT DUTY TRUCKS INCLUDING SATURN. *NJ UPDATED 11/19/10. *PE UPDATED 3/30/11. *PE
0703160022007-07-24. Service bulletin. TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. TIRE PRESSURE MONITOR SYSTEM CONCERNS. *KB 2008 PASSENGER CARS AND TRUCKS (INCLUDING SATURN). UPDATED 2/26/08. *NJ
39932006-07-19. Service bulletin. ELECTRICAL SYSTEM. NO CRANK/NO START AT TIMES. *TT UPDATED 1/30/08. *NJ
0506040352006-05-08. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE; FUEL SYSTEM, GASOLINE. 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. *NJ
0509400022005-05-16. Service bulletin. SEAT BELTS; SEAT BELTS:FRONT. SAFETY BELT LOCKING CONDITIONS (NORMAL OPERATING CHARACTERISTIC). 2005-2008 GM PASSENGER CARS AND LIGHT DUTY TRUCKS (INCLUDING SATURN) . *TT UPDATED 04-27-07. *KB UPDATED 11/29/07. *NJ
0108420012005-05-04. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. HEADLAMPS CONDENSATION AND REPLACEMENT GUIDELINES. KAPERII. *TT 1993-2008 GM PASSENGER CARS AND TRUCKS INCLUDING SATURN. *KB UPDATED 2/26/08. *NJ
04-06-01-0292005-03-11. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 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. *NJ
0403100012005-01-03. Service bulletin. SUSPENSION; TIRES:TREAD/BELT. 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. *PE
3046A2004-09-27. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM. FUEL GAUGE FLUCTUATION IN PARK OR NEUTRAL. *TT
SB-020842001B2002-05-21. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. GENERAL MOTORS VEHICLES AND TRUCKS: SUBJECT REGARDING, 2002 AND PRIOR PASSENGER CARS AND TRUCKS, CHEMICAL DAMAGE TO EXTERIOR POLYCARBONATE HEADLAMP LENSES. *SLC UPDATED *EH UPDATED 3/30/11. HEADLAMP LENS OVERHEATING WHEN COVERED AND CHEMICAL DAMAGE TO EXTERIOR POLYCARBONATE HEADLAMP LENSES. CAN CAUSE CRAZING OR CRACKING OF HEADLAMP LENS. *PE UPDATED 6/24/11. *PE UPDATED 5/14/12. INCLUDING 2013 MODEL YEAR. *PE

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.