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Service bulletins for the 2007 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.

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

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
030604017I2016-10-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. THIS INFORMATIONAL BULLETIN EXPLAINS THE USE OF DIESEL FUEL ADDITIVES IN AN ENGINE, ARE NOT REQUIRED UNLESS THE CUSTOMER DESIRES ADDITIVES TO PREVENT FUEL CONCERNS DEPENDING ON FUEL OR TEMPERATURE RELATED CONDITIONS.
030603004R2016-10-18. Service bulletin. ENGINE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION ON HOW TO TEST A BATTERY AND WHAT IS NEEDED TO WARRANTY A BATTERY.
000601026I2016-10-18. Service bulletin. ENGINE. THIS INFORMATIONAL BULLETINS PROVIDES INFORMATION ON THE INTAKE MANIFOLD INSPECTION/REPLACEMENT AFTER SERVERE INTERNAL ENGINE DAMAGE.
000601012F2016-10-18. Service bulletin. ENGINE. THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION TO GM DEALERS ON THE CORRECT CLEANING METHODS WHEN CLEANING ENGINE GASKET SEALING SURFACES.
SB-07-06-01-016C2016-08-09. Service bulletin. ENGINE. THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION INTERNAL ENGINE NOISE OR DAMAGE AFTER OIL FILTER REPLACEMENT
RB-112232012-03-12. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. HUMMER: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. RECALL BULLETIN PERTAINING TO THE EROSION OF THE MAT SUPPORT MATERIAL INSIDE CATALYTIC CONVERTER ASSEMBLY AND MAY CAUSE MALFUNCTIONING OF INDICATOR LIGHT, NOISE AND/OR PERFORMANCE REDUCTION IN ENGINE. *PE
PIP-4138K2011-06-08. Service bulletin. ENGINE AND ENGINE COOLING. GM: THE SERVICE ENGINE SOON LIGHT IS ON, THERE IS ALSO A MISFIRE OR ENGINE NOISE. THERE ARE MULTIPLE POSSIBLE CAUSES. *RM
PIP-4492P2011-03-16. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). 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. *PE
SB-07-06-04-019A2009-06-02. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ENGINE AND ENGINE COOLING:ENGINE. GENERAL MOTORS: INTERMITTENT MIL/SES/ DTC P2138 WITH REDUCED ENGINE POWER (REPAIR INSTRUMENT PANEL (IP) TO BODY HARNESS CONNECTOR). 2005-08 GM PASSENGERS CARS/LIGHT DUTY TRUCKS (INCL. SATURNS). *PE UPDATED 11/5/10. *PE UPDATED 4/4/11. *PE UPDATED 2/3/16. *PE
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
40402007-04-24. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. HARSH TCC APPLY OR TCC CYCLING. *KB
0606040422007-01-25. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. LR4, LY2, L33, LH6, LM7, L59, LC9, LMG, LY5, LS2, LQ9, LQ4, L76, LY6 THROTTLE ACTUATOR CONTROL (TAC). MODULE CODES, MIL/SES DTC'S P2108, P1516, U0107, REDUCED ENGINE POWER. *KB
34622006-12-22. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. BLOWER MOTOR IS IN-OPERABLE/ WILL NOT SHUT OFF/ DEAD BATTERY. *KB
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
30452005-04-20. Service bulletin. ENGINE AND ENGINE COOLING. SHUDDER OR BIND ON TRUNS IN 4 HI. *EH UPDATED 03-01-07. *KB
0206040152002-05-21. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. INTERMITTENT NO CRANK, NO START CONDITION FOR 2001-2002 PASSENGER CARS AND TRUCKS. *SLC 2001-2007 GM PASSENGER CARS AND LIGHT-DUTY TRUCKS (INCLUDING SATURN). *TT

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