Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
POWER TRAIN
00773100171904l60e, 4l65e replacement valve body gaskets does not seem to fit. *tt10/27/2005
3276100134964l80e output carrier thrust washer changes. *tt04/20/2005
305401/01/200410009665Replacement flexplate may have larger bolt holes than the original flexplate. *tt10/14/2004
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
990730016A10/01/2002990730016B10007838Diagnostic information for intermittent transmission downshift, slip, busy/cycling tcc or noisy cooling fan. *tt07/12/2004
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
0141011/18/200310004214Poor performance from a stop in 2wd, auto or 4wd hi. 2003, 2003 cadillac ext also included. *tt11/21/2003
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
304701/01/200410009392Harsh tcc apply and or a diagnostic trouble code p1870. 4l80e automatic transmission. *tt09/27/2004
03073005611/01/2003100055664l60-e automatic transmission oil pump first and second design identification. *tt03/04/2004
3259C3259E100055144l80e, 4l85e whine noise in first and second gear. *tt03/01/2004
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
02073001103/01/2002631670Subject regarding, 2001-2002 chevrolet and gmc c/k pickup and utility models, diagnostics for possible gear indicator concerns. *jg06/10/2002
02073001103/01/2002631259Subject regarding, 2001-2002 chevrolet and gmc c/k pickup and utility models, diagnostics for possible gear indicator concerns. *slc05/21/2002
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
01073004312/01/2001628815Subject regarding diagnostic tips for slipping or missing second, third and/or fourth gear. *tt03/21/2002
01060106/01/2001619765Subject regarding an investigation of 2-4 band or 3-4 clutch damage on 4l60e automatic transmission. *tt06/28/2001
01-60106/01/2001619762Subject regarding investigation of harsh shifts on 4l60e automatic transmission. *tt06/28/2001
POWER TRAIN - AUTOMATIC TRANSMISSION - COOLING UNIT AND LINES
PIT-472210/01/200810026804Gmc: fluid leak from transmission oil cooler lines due to corrosion. all 2000-2006 light duty trucks equipped with the light duty automatic transmission. *pe12/18/2008
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 - AXLE ASSEMBLY
40304030A10021676New design front axle side bearing adjusters. *kb06/15/2007
336410014953Rear axle retainer button breakage. *eh05/12/2005
30013001A10008872The service information and owners manual do not show a service interval for the 8.6, 9.5, 9.75, 10.5, and 11.5 inch rear axles with or without g80 (locking differential). *tt 2006 all general motors light duty trucks, vans and utilitie08/25/2004
03041800306/01/200310002854Revised wheel drive shaft inner joint and seal replacement. *tt09/26/2003
03041700106/01/2003030417001A10002853Whine noise from rear axle. *tt09/26/2003
POWER TRAIN - DRIVELINE
33003300A100135724wd models with noise, vibration on dry pavement. *eh04/21/2005
POWER TRAIN - DRIVELINE - DRIVESHAFT
04049500103/01/200410008653Revised wheel drive shaft nut torque specification. *tt08/12/2004
POWER TRAIN - MANUAL TRANSMISSION
01073003611/01/2001627912Service engine soon lamp illuminated, incorrect transmission shifts, poor performance of engine, transmission slipping. *yh02/26/2002
POWER TRAIN - TRANSFER CASE (4-WHEEL DRIVE)
34243424A10017299Electronic transfer case unable to complete shift. *tt11/02/2005
338910016707Four wheel drive inoperative and the 4wd service light will illuminate. diagnosis may reveal that the atc fuse could be open, possible dtc c0308, or various u codes may be set. the encoder motor may also be shorted or the tccm may be dama09/28/2005
352610016558Intermittent service 4wd light comes on with diagnostic trouble code (dtc) c0306 or c0308 stored in tccm. *tt09/22/2005
3349100148094wd inoperative and diagnostic trouble code (dtc) u1026 atc fuse open. *tt05/10/2005
3132A3132B10010024Nvg149 np3 transfer case may exhibit a bind or shudder on turns. *tc11/03/2004
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
02042100404/01/2002634899Some customers may comment on the service 4wd indicator illuminating with diagnostic trouble code b2725 set. *tt10/10/2002

Consumer Complaints


Fail datemilesoccurencesPurchase date
POWER TRAIN
06/15/201175000
 I heard a slight grinding noise, that sounded like a brake dragging. i replaced brakes all the way around, and that didn't stop the noise. i then replaced all the wheel bearings, this did not help either. i tried the u-joints with no luck. i was talking to the person that i got the vehicle from and was told that the rear end had been rebuilt twice! this was before i got the vehicle, and it only had 67000 on it when i got it. since then i have talked to many yukon owners, and they have had the same issues.
12/01/200423496
 Tl*the contact owns a 2001 gmc yukon. while driving 15 mph, the 4-wheel drive service indicator intermittently illuminates on the instrument panel. all 4-wheel drive power was completely lost in the vehicle. she took the vehicle to the dealer and they stated that the case shift control module failed. the failure has occurred four times since 2004. the dealer replaced the case shift control module each time the failure occurred; however, the contact believes it should not fail every 12 months. she believes that a recall should be issued and the manufacturer should be responsible for the repair. the failure mileage was 23,946 and current mileage was 72,000.
POWER TRAIN - AUTOMATIC TRANSMISSION
03/01/2006105/28/2003
 2001 yukon transmission seal failed because of rough shifting, serpentine drive belt squeaks. vehicle leaked fuel consumer had to get a ride home while fire dept cleaned up spill. *ts a seal failed and coolant leaked into the transmission and destroyed it. the radiator seal failed. the head light lens was loose. *jb
09/28/200581182107/31/2004
 2001 yukon xl suv with 81182 miles on it. transmission made a popping sound (no forward gears, but reverse gears). suv has upgraded transmission that had a supposedly better model front planet part per gmc transmission specialist. that supposedly superior front planet split into (2) parts inside the transmission although it is one molded piece. resulting explosion of metal caused a $2703.52 transmission rebuild. i have the digital photos and the actual failed parts!*jb
06/24/200213329410/21/2001
 Multiple failures with 2001 yukon. dashboard light, air bag and computer malfunctioned. problems starting after accelerating. *bf the vehicles computer malfunctioned causing dashboard lights, airbag, l.e.d, and brake lights to turn on. the speedometer froze. when the consumer would press on the gas pedal the vehicle would not respond properly. this problem happens spuractically. *tc
11/02/20041
 The vehicle was parked and not running, however the consmer was able to apply the shifter from park to drive as well as reverse. please fill in additional information. *jb the vehicle began to move in the off position when the key was not in the ignition due to the shifter moving from the park position. *tc
07/19/20046
 When driving at any speed vehicle would not go into overdrive. consumer took vehicle to the dealership for inspection, and mechanic determined that transmission failed. *ak
12/03/2001111/01/2001
 No summary listed for above vehicle. *ak
POWER TRAIN - AUTOMATIC TRANSMISSION - CONTROL MODULE (TCM, PCM)
1
 Cruise control failure caused by an aberrant voltage on stop lamp circuit. also the pcm, starter and serpentine belt was replaced. *ak *jb
POWER TRAIN - DRIVELINE - DRIVESHAFT
08/21/20012002/28/2001
 Multiple failures; a/c odors, door lock, suspension alignment and brakes. *bf there were problems with the following: weather strip was loose, the a/c blew warm, the belts squeaked, there was a mildew odors, the window regulator, the front seat belt squeaked, the door panel, the steering wheel rattled, drive shaft, accelerator pedal, the wipers were noisy, the hinge pin on the radio was loose, engine noises, a/c drain would not drain at times until the passenger door was closed/water lead and caused by the left front floorboard. recall#01v159000, 02v253000, 03v094000. *sc
POWER TRAIN - MANUAL TRANSMISSION
08/23/2001102/20/2001
 The transmission pump failed causing the vehicle to almost stall in traffic while attempting a left-hand turn, the consumer is requesting that the dealer replace the transmission with a new one instead of retro-fitting the existing. nlm
POWER TRAIN - TRANSFER CASE (4-WHEEL DRIVE)
10/13/2005309/29/2001
 The consumer experienced various steering, suspension and transfer case problems with her 2001 gmc yukon. *nm the cigarette lighter was hanging out. the dealer replaced the housing and element. the parking brake shoes were replaced. teflon grease was installed on driveshaft to alleviate the bumpiness in the rear. license plate light fogged up. the dealer replaced the lamp. the driveshaft was replaced along with the yoke at the rear u-joint. the consumer heard a clunking noise when putting the vehicle in reverse. the dealer determined that the transfer case chain had stretched. the dealer r and r the transfer case and replaced the chain. *nm