Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
POWER TRAIN
00773100171904l60e, 4l65e replacement valve body gaskets does not seem to fit. *tt10/27/2005
30023002D100088024l60e/4l65e intermittent neutral condition while accelerating from a stop or while driving. *tt 1999-2006 gm cars, light duty trucks and utilities. *tt08/23/2004
0208601/01/2004100077824l60e, 4l65e intermittent neutral from a stop or steady speed. *tt07/12/2004
0159901/01/2004100072374l60e, 4l65e forward and low reverse waved steel clutch plate appearance change. *tt06/04/2004
010730002C08/01/2003010730002B10004354Malfunction indicator lamp (mil) is on; the transmission is stuck in third gear; and / or the instrument cluster is inoperative. *tt12/03/2003
020421005A02/01/200302042100510001110Slips in 4-wheel drive, noise, vibration, leaks, hot odor. *tt04/15/2003
02042100506/01/2002634905Some vehicles will not move when 4-wheel drive is requested, noise, shudder, poor performance, transmission / transfer case slips, transmission will not upshift, slips in 4-wheel drive. *tt10/10/2002
POWER TRAIN - AUTOMATIC TRANSMISSION
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
03073005611/01/2003100055664l60-e automatic transmission oil pump first and second design identification. *tt03/04/2004
010730038B10/01/2005010730038C10005162The service engine soon lamp is illuminated, no 3rd and 4th gear, the transmission does not shift correctly, the transmission feels like it shifts to neutral or a loss of drive occurs. *tt02/09/2004
01073003812/01/2001010730038D628934Some customers may comment that the service engine soon lamp is illuminated, no 3rd and 4th gear, the transmission does not shift correctly, the transmission feels like it shifts to neutral or a loss of drive occurs. *tt03/25/2002
POWER TRAIN - AUTOMATIC TRANSMISSION - LEVER AND LINKAGE - COLUMN SHIFT
020730024A08/01/2005020730024B634999Diagnosis of cracked or broken transmission case. *tt 2006 and prior cars and light duty trucks. *tt10/11/2002
POWER TRAIN - DRIVELINE
33003300A100135724wd models with noise, vibration on dry pavement. *eh04/21/2005
POWER TRAIN - DRIVELINE - DIFFERENTIAL UNIT
990421003C08/01/2003990421003B10004401Front wheels slipping with vehicle in four wheel drive. *tt12/05/2003
990421003B04/01/2001990421003A619378Some owners may comment on a slipping type condition at the front wheels while the vehicle is in four wheel drive (4wd). *tt05/24/2001
POWER TRAIN - TRANSFER CASE (4-WHEEL DRIVE)
34243424A10017299Electronic transfer case unable to complete shift. *tt11/02/2005
3349100148094wd inoperative and diagnostic trouble code (dtc) u1026 atc fuse open. *tt05/10/2005
3012B3012A10008806The nvg 136 all wheel drive (awd) transfer case and the 236 and 246 nvg selectable transfer cases operating in the auto mode may exhibit a condition of a vibration/shudder during low speed turns such as a parking lot maneuver, up to approxi08/23/2004
0140911/18/200310004212The nvg 136 all wheel drive (awd) transfer case and the 236 and 246 nvg selectable transfer case shudder on turns. *tt11/21/2003
99042100306/01/1999606091Some owners may comment about a slipping type condition at the front wheels while the vehicle is in four wheel drive (4wd). *tt08/06/1999

Consumer Complaints


Fail datemilesoccurencesPurchase date
POWER TRAIN
11/15/2002430001
 The consumer was unable to drive the vehicle in any gear except first gear at 5 mph. due to a failed transmission. *jb
POWER TRAIN - AUTOMATIC TRANSMISSION
06/16/20061
 1999 gmc jimmy. transmission issues. new tranny needs to be rebuilt by 80,000 miles. seats and structure of handles break easily and last for maybe 35,000, new hubs required by 40,000, bail joints fail without warning creating serious road hazards, alternator failure, ujoint failure. all parts replaced between 35,000 and 80,000 to the tune of $11,000 yet no recalls despite mechanics claiming these are recurring problems in these vehicles. never buy a gmc again. *tr
09/23/200488000101/01/2004
 The 4l60e transmission seems to be running hot during warmer summer weather & while driving up hills towing a trailer. the transmission also seems to be shifting rough during warmer summer months too. there is a shudder every once in a while during low speed turning. now there is a noise consistent with a speed around 55 mph. *jb
02/15/2004110/25/2003
 Transmission switches to 4wd hi on its own and will not allow me to switch back. *jb
03/27/2002204/14/2001
 Consumer's vehicle lost reverse, 1st and 3rd gear. *la the consumer stated the transmission failed again. *jb
02/01/20022
 The service engine light and diagnostics indicate internal transmission slip, while driving the vehicle on days when the temperature is above 80 degrees the transmission shifts harshly into second gear when started from a stop, when the temperature is below 70 degrees the transmission runs fine. nlm
01/01/2002
 My son was almost hit by my truck because it keeps popping out of gear in park. this is an accident waiting to happen, and the mechanics that it went to could not find anything wrong. *ak
05/11/2000401/01/1999
 4 wheel drive indicator switched to 4 wheel drive low on its own. 1st time was
09/02/1999205/01/1999
 Consumers has had transmission replaced once for the same problem. however, new transmission is continuing to slip in real hot temperatures. dealer doesn't know the cause. *ak
POWER TRAIN - AUTOMATIC TRANSMISSION - COOLING UNIT AND LINES
07/25/2005805202
 Transmission fluid coolant lines from transmission to the radiator leaking at the transmission connection steaming flammable transmission fluid onto the hot exhaust system components. connections of lines at the transmission leak due to inadequate allowance for normal movement between the radiator and fixed transmission connection. *nm
07/25/2003805202
 Transmission fluid coolant lines from transmission to the radiator leaking at the tranmission connection streaming flammable transmission fluid onto the hot exhaust system components. connections of lines at the transmission leak due to inadequate allowance for normal movement between the radiator and the transmission.
POWER TRAIN - AUTOMATIC TRANSMISSION - GEAR POSITION INDICATION (PRNDL)
11/11/200154309/02/1999
 I purchased a 1999 gmc jimmy for my daughter. all through the warranty period, there have been problems that still have not been fixed.the brakes have never worked properly, parts inside the vehicle have fallen off, the antenna has fallen off,the electrical system (heating and cooling) has not worked properly,the outside mirrors and windows have not worked properly,the electrical system has buzzed when the radio is on, there has always been a banging noise underneath the vehicle. the left front hub assembly was replaced-didn't correct the probelm-had it replaced again 2 weeks ago-same condition still exists. they finally found the lower and upper ball joints on the passenger side were coming apart-replaced them-but noise (loud sometimes) is still there. have been taking this vehicle in for repairs since i bought it-have been without the vehicle over 30 days in the warranty perioid. now-after breaking down twice again in the last 2 months (a condition i've been trying to have them fix since 11/01) due to no power when i press on the gas-it's going in again. it is 2 hours one-way to the dealer (silviera, healdsburg, ca) for me. i believe they have been trying-but i think this vehicle is really now, and has always been a lemon. the vehicle has only 50,000 miles on it, and it is not dependable (never has been). after all these times in for service-taking a day off work every time to get it to them, i've had it. my daughter (college student) who i bought the vehicle for (i wanted her to have something reliable for college), now uses my car-so she won't get stuck all the time. i am ready to put the lemon law into effect with this vehicle.*ak
POWER TRAIN - AXLE ASSEMBLY - AXLE SHAFT
07/06/2000104/01/1999
 Vehicle has problem with wheel bearings. once before left was replaced, and recently right was replaced. they would make a growling scrapping noise without touching brakes. *ak the vehicle was vibrating and making noise which increased as speed goes up. the shaft sealwas replaced twice. *yh
POWER TRAIN - AXLE ASSEMBLY - AXLE SHAFT - SEAL
07/06/2000104/01/1999
 Vehicle has problem with wheel bearings. once before left was replaced, and recently right was replaced. they would make a growling scrapping noise without touching brakes. *ak the vehicle was vibrating and making noise which increased as speed goes up. the shaft sealwas replaced twice. *yh
POWER TRAIN - AXLE HUBS
05/16/200485000210/15/1999
 1-normal care and maintenance of this vehicle.2-the door hinges failed on both front doors, needing expensive replacement.3-both front hub assemblies failed at 85,000 miles, costing $700.00plus to repair. both failures are unacceptable!*ak
POWER TRAIN - CLUTCH ASSEMBLY
04/15/20039600002/01/2002
 The transmission slips from 2nd to 4th gear and yet the 3 automotive shops can not locate a problem! each one has replaced a part or 2 but they all say it is not the transmission nor the computer but none of them can fix it. i just keep getting passed down to another shop so they can get their $200.00 to $300.00 from me. the dealership i purchased it from will not even call me back to discuss the problem and i had paid an extra $1800.00 for an additional warranty on the vehicle. i will never buy another gmc again! *nlm
POWER TRAIN - DRIVELINE
02/03/200363676210/26/2001
 2/2003 front end collapsed on highway travelling at 65mpg due to ball joint failure. brakes and sterring would not work. had to crash into a hill to stop vehicle. ball joints again failing on 7/2005.
POWER TRAIN - DRIVELINE - DIFFERENTIAL UNIT
12/04/200697000110/01/2001
 Dt*: the contact stated while driving 30 mph, there was a thumping noise from underneath the rear of the vehicle, and it was difficult to steer from side to side. the vehicle was inspected by an independent repair shop, who determined the differential unit failed and needed to be replaced. the manufacturer was alerted.
10/17/20003
 The engine light illuminated several times, because the air pump froze, the right front wheel bearing, fuel pump, and rear differential bearings were replaced. *ak *jb
POWER TRAIN - DRIVELINE - DRIVESHAFT
04/16/200575020107/06/2002
 2000 miles after the lower intake manifold gasket was replaced, vehicle spun #6 rod bearing and destroyed the whole engine. gm is aware of thousands of complaints about the leaking intake manifold gasket. often leads to catastrophic engine damage. also found rusted dexcool blocking the hose to the radiator reservoir, which may have contributed to the problem.
POWER TRAIN - MANUAL TRANSMISSION
05/29/2002107/02/2001
 While in motion, the transmission failed. consumer felt vehicle make a small shudder, approx. 30 seconds later another shudder was felt throughout the vehicle. vehicle was taken to service center where it was determined that the shell fractured inside the transmission causing severe damage. *jg
POWER TRAIN - TRANSFER CASE (4-WHEEL DRIVE)
08/01/200594000102/15/2003
 There are several recalls out on my model of vehicle in which my vehicle has the same symptoms but when i run a check on the year vin it comes back with no recalls. how can i make sure that my repairs should be covered under the recalls. *jb