Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
POWER TRAIN - AUTOMATIC TRANSMISSION
PI0522B04/01/201210044233Gm: tick or rattle noise from front of dash, transmission filler tube cracked or broken (inspect filler tube, replace tube as necessary). *js05/23/2012
PIP-3366-B11/01/201110043185Cadillac/chevrolet/gmc/hummer: some suvs and trucks are exhibiting a condition where by grinding/ratcheting type noise coming from automatic transmission when shifting into park while in 4wd low (4lo) range. *pe02/29/2012
PIT-4846A05/06/200910030244Cadillac/chevrolet/gmc: locations of high speed gmlan wiring concerns. gauges inoperative, no crank, harsh transmission shifting, no transmission shifting, door locks cycling and indicators on. *pe09/02/2009
08-07-30-02305/01/2008100256704l60-e/4l65-e/4l70-e automatic transmission fluid leak from oil pump or bell housing area (replace torque converter hub-to-oil pump seal assembly). attn: this bulletin applies to vehicles built prior to december 2007. *pe08/28/2008
POWER TRAIN - AUTOMATIC TRANSMISSION - CONTROL MODULE (TCM, PCM)
08-07-30-021G03/01/201210043829Gm: loss of high speed gmlan communications, intermittent no crank, ip gage fluctuation, intermittent door look cycling, intermittent chime operation, various ip warning lamps illuminated, transmission may not shift, communication dtcs u00704/27/2012
PIP-4653B09/01/200910032434Buick/chevrolet/hummer/gmc/pontiac/cadillac/saturn: technicians may find dtcs p0601, p0603, p0604, p062f or p1621 stored in the tcm as an active or a history code. some of these dtcs can also be set in the ecm or fpcm. make sure that you03/24/2010
411204/01/2009PIP-4112H10023432Sag or hesitation on acceleration (normal operating characteristics). equipped w/ gasoline engine and automatic transmission. *nj updated 1/30/08. *nj updated 10/01/08. *pe updated 8/12/09. *pe12/11/2007
POWER TRAIN - AUTOMATIC TRANSMISSION - COOLING UNIT AND LINES
PIP-442406/01/200810026664Gmc: leak from transmission oil cooler line fitting on vehicles built in april or may, 2008. *pe11/25/2008
POWER TRAIN - AXLE ASSEMBLY
09-04-21-003D01/01/201110037544Ready05/25/2011
09-04-17-002E01/01/201110037552Gm: there may be a bump noise or clunk feel when stopping or launching. this may be caused by a slip in the transmission. *rm05/25/2011
09-04-21-003D01/01/201110037544Gm: when stopping or accelerating there may be a clunk noise and its as if the vehicle is bumped from behind. this can be caused by a slip in the rear propshaft. *rm05/25/2011
09-04-17-002E01/01/201110037552Ready05/25/2011