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
PIP-439508/01/200810026149Gmc: flare and or harsh 2-3 shifts. this condition may be caused by leaking 1-2-3-4 and 3-5-r clutch fluid seal rings (230). models cadillacs, chevrolets, gmc, hummers, pontiacs. equipped with 6l80 (rpo myc) or 6l90 (rpo myd) automati10/02/2008
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
POWER TRAIN - AXLE ASSEMBLY
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
09-04-21-003D01/01/201110037544Ready05/25/2011

Consumer Complaints


Fail datemilesoccurencesPurchase date
POWER TRAIN
11/17/2011
 Tl- the contact owns a 2009 chevrolet avalanche. the contact stated that the vehicle was parked on a slight incline when a loud bang was heard and the vehicle began to roll away, in reverse. the rear tail lights were illuminated as the vehicle rolled away before crashing into a body of water. the vehicle was destroyed. the contact's insurance company inspected the vehicle and determined that the failure was either contributed to the park pole or the teeth fracturing in the transmission. the vin was not available. the failure mileage was unknown. kmj
11/17/2011
 Tl- the contact owns a 2009 chevrolet avalanche. the contact stated that the vehicle was in park on a slight incline when it was placed in park. while the vehicle was still in park the position the contact heard a loud bang and the vehicle started going into reverse. the contact stated the reverse lights were on when it went into the water. the failure destroyed the vehicle with water damage. the insurance company the vehicle inspected it was determined the failure is either the park pole or the teeth breaking in the transmission. the vin was not available. the failure mileage was unkown.rl