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Service bulletins for the 2005 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.

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

By type

By component

By trouble code

By topic

Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
30602004-09-27. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. THE ENGINE DOES NOT STALL WHEN PERFORMING A P1870 DIAGNOSTIC TEST WITH THE TECH 2 SCAN TOOL OR WHEN COMMANDING THE TORQUE CONVERTER CLUTCH ENABLE SOLENOID ON APPLICATIONS THAT DO NOT HAVE THE P1870 DIAGNOSTIC TEST LISTED. 4L60E OR 4L65E TRANSMISSIONS. *TT
0407300132004-08-16. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. AUTOMATIC TRANSMISSION SHIFT, ENGINE DRIVEABILITY CONCERNS OR SERVICE ENGINE SOON (SRS) LIGHT ON AS A RESULT OF THE INSTALLATION OF AN AFTERMARKET REUSABLE, EXCESSIVELY OILED AIR FILTER. 2004 AND PRIOR CARS AND LIGHT DUTY TRUCKS. *MJ 2005 AND PRIOR. *TT
030730007A2004-03-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. ENGAGEMENT TIME OF ELECTRONICALLY CONTROLLED TRANSMISSIONS IN GENERAL MOTORS VEHICLES. VARIOUS MODELS INCLUDING 2000-2006 ALL LIGHT DUTY TRUCKS. *TT
0307300432003-12-02. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. INFORMATION REGARDING AUTOMATIC TRANSMISSION SHIFT LOCK CONTROL FUNCTION. VARIOUS MODELS INCLUDING 2004 AND PRIOR PASSENGER CARS AND TRUCKS. *TT UPDATING TO 2007 AND PRIOR PASSENGER CARS AND TRUCKS. *KB
020730029D2003-12-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. PRODUCT QUALITY CENTER FOR ENGINE AND TRANSMISSION ASSEMBLY AND TRANSFER CASE REPLACEMENT. VARIOUS MODELS INCLUDING 2004 AND PRIOR PASSENGER VEHICLES AND LIGHT DUTY TRUCKS. *TT 2005 AND PRIOR PASSENGER VEHICLES AND LIGHT DUTY TRUCKS. *TT
030730002A2003-09-29. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES. TRANSMISSION COOLING SYSTEM SERVICE TOOL J 45096 - TRANSFLOW INFORMATION. *TT
010730036D2003-03-29. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. DIAGNOSTIC TIPS FOR DIAGNOSTIC TROUBLE CODE P0756. 2006 AND PRIOR PASSENGER VEHICLES AND LIGHT DUTY TRUCKS. *TT
020730052A2003-03-28. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. ESSENTIAL TOOL J 45096 TRANSFLOW FOR 2005 AND PRIOR PASSENGER <A TITLE="CLICK FOR MORE INFORMATION ABOUT CAR" STYLE="TEXT-DECORATION: NONE; BORDER-BOTTOM: MEDIUM SOLID GREEN;" HREF="HTTP://SEARCH.TARGETWORDS.COM/U.SEARCH?X=5977|1||||CARS|AA1VDW">CAR</A>S AND LIGHT DUTY TRUCKS WITH AUTOMATIC TRANSMISSION/TRANSAXLE. *TT
020730024A2002-10-11. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT. DIAGNOSIS OF CRACKED OR BROKEN TRANSMISSION CASE. *TT 2006 AND PRIOR CARS AND LIGHT DUTY TRUCKS. *TT
0107300422002-03-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SOME VEHICLES MAY EXHIBIT A CLUNK NOISE THAT CAN BE HEARD ON A 2-3 UPSHIFT ON 2002 AND PRIOR LIGHT DUTY TRUCKS. *TT UPDATE. 2007 AND PRIOR PASSENGER CARS AND LIGHT DUTY TRUCKS. *KB
010730030A2002-02-15. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. DIAGNOSTIC INFORMATION ON HARSH 1-2 UPSHIFT. 2001-2002 PASSENGER VEHICLES AND LIGHT DUTY TRUCKS. *YH TO INCLUDE 2003-2006 PASSENGER VEHICLES AND LIGHT DUTY TRUCKS. *TT
010730002D2001-05-29. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. MALFUNCTION INDICATOR LAMP (MIL) ON, TRANSMISSION STUCK IN THIRD GEAR, INSTRUMENT CLUSTER INOPERATIVE. *TT UPDATED *EH 2006 AND PRIOR GM PASSENGER CARS AND LIGHT DUTY TRUCKS. *SC
0107300102001-05-17. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. THE PURPOSE OF THIS BULLETIN IS TO HELP TECHNICIANS DETERMINE WHEN A TORQUE CONVERTER SHOULD BE REPLACED ON ALL 2001 AND PRIOR GM PASSENGER <A TITLE="CLICK FOR MORE INFORMATION ABOUT CAR" STYLE="TEXT-DECORATION: NONE; BORDER-BOTTOM: MEDIUM SOLID GREEN;" HREF="HTTP://SEARCH.TARGETWORDS.COM/U.SEARCH?X=5977|1||||CARS|AA1VDW">CAR</A>S AND TRUCKS. *TT *AR

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