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
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
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
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
9902708/01/1999608377General motors has decided that some vehicles equipped with 4.8l or 5.3l engines and 4l60-e automatic transmissions, and vehicles equipped with 3.73 rear axles and ordered with the heavy-duty trailering package may not have included the mer11/24/1999
99027A09/01/1999607943Subject regarding auxiliary transmission oil cooler omitted. *tt10/19/1999
POWER TRAIN - AUTOMATIC TRANSMISSION - COOLING UNIT AND LINES
99027B12/01/199999027A6089929A condition with the auxiliary transmission oil cooler omitted from certain vehicles equipped with heavy duty trailering package (z82). *tt02/29/2000
99027B12/01/199999027A6089003General motors has decided that some vehicles may have the auxiliary transmission oil cooler omitted. *tt01/12/2000
99027A09/01/1999607680General motors has decided that some vehicles may not have included the merchandising-intent auxiliary transmission oil cooler (knp). *tt10/05/1999
9902708/01/1999607627General motors has decided that some vehicles may not have included the merchandising-intent auxiliary transmission oil cooler (knp). *tt09/30/1999
POWER TRAIN - AUTOMATIC TRANSMISSION - LEVER AND LINKAGE - COLUMN SHIFT
66042100204/01/1999606576Customer may complain that the 4wd is inoperative. *tt08/27/1999
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
POWER TRAIN - DRIVELINE
33003300A100135724wd models with noise, vibration on dry pavement. *eh04/21/2005
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
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
12/29/200110012/01/2001
 When the gas pedal is released the car continues at current speed for 5 to 8 seconds before decelerating. the tachometer reading does not drop during this time. this happens at highway speeds and driving around town speeds. it's scary. it will decelerate and the tachometer reading drop when the brakes are applied, but i'm never sure.*ak
POWER TRAIN - AUTOMATIC TRANSMISSION
04/02/2008119900104/08/2006
 Just driving down the highway and car just stopped going after several attempts i got the vehicle to go into gear and drove to dealer the vehicle was working fine and the was no indication of pending transmission failure. have to put in new transmission this is the second one in this vehicle that has 119,900 on it. *tr
08/17/200474039105/29/2002
 Fuel leaks from the central port injections into the onboard computer. as a result, the vehicle becomes inoperative. a recall was issued. however, this vehicle was not included in the recall due to vin. *ak the pcm was replaced. a misfired in the 3 cylinders and 3 injector were replaced. *sc *jb
05/16/200411667010011/01/1997
 Windshield wipers, junk, transmission junk,transfer case junk and rear end junk. had the exact same problems with 1997 4x4 suburban, know many people having same problems now. there should be some type of recall or service bulletin. these problems have existed for years. may start buying foreign at least they stand by what they build. must we wait until people are injured. *jb
04/15/20041
 Vehicle started surging while going down the road,also hard shift between 1st and 2nd gears.also have wiper problems. *ak
09/04/200258000109/01/2002
 Clunk in rear suspension when starting after a full stop. dealer has lubricated driveshaft yoke, replaced u-joints. i lubricated driveshaft yoke myself, found it well-lubed, not the problem. noone knows how tom fix it.*ak
04/16/200369156303/26/2001
 The consumer complained about six month ago about problems with the transmission. the dealer replaced the torque converter, six month later, the transmission failed while driving 40 mph. the dealer rebuilt the automatic transmissions at the owner expense. *jb the transmission was completely rebuilt and had been serviced prior to purchase which included a transmission flush. the vehicle leaked fluid, found front pump leaking due to the bearing failure(both were removed and replaced), when the vehicle would get warm, a loud rattling noise would be heard, the a/c would get warm, the fan would stop blowing(fond terminal burnt/wiring repaired), the transmission slipped upon acceleration(found the input carrier bearing coming apart and metal throughout/the transmission was completely reconditioned). *sc
01/19/199848000101/12/1999
 Transmission on 1999 chevy tahoe i took to elliott chevrolet 3 days after i purchased it. was told that their was not a recall but i was informed by an employee that there was on some part and it was covered. i could not get the dealer to cover this. *ph
03/26/200338000106/01/1999
 While driving the automatic transmission didn't shift from the first to the second gear properly. *nlm
04/26/19961
 The vehicle was in park and was not running at the time. the daughter accidental knock the gear into neutral. causing the vehicle to sped off into the consumer house. please fill in additional information dealer is aware of the problem. mr
01/10/2002108/01/1999
 No summary listed for above vehicle. *ak
02/14/200106/01/1998
 Truck was taken in repeatedly for brakes, transmission, air conditioner and headlights prior to warranty expiration and was told they could not duplicate the problem or it was under chev specs or we were experiencing anti-lock brakes. water pump began leaking and had to be replaced 2200 miles outside of warranty. entire brake system, lines-calipers, everything had to be replaced because foreign fluid corroded the system. no one has touched the brakes but the dealer. we repeatedly complained about the brakes taking too long to stop the vehicle, having a spongy feel and absolutely no confidence that they would stop in an emergency situation. overall, the brakes just did not feel safe and we reported this when the vehicle was still under warranty. intake manifold is leaking and needs to be replaced. battery exploded and leaked battery acid everywhere damaging other engine parts. transmission is in need of an overhaul/replacement either as a direct result of the battery exploding or mere coincidence considering we have always complained that something was wrong with the transmission and you could push the truck while in park a full foot. the air conditioner has always leaked after driving approx. 2 hr as well as the driver's side high beam headlight always has water in it. detailed complaints have been filed with the attorney generals of az and fl, as well as copies sent to the dealer, manufacturer and leasing company involved. chevrolet should be ashamed of the shoddy product that rolled off their assembly line and the manner in which they conduct business surrounding consumer complaints generated as a direct result from poor workmanship at one of their factories. there is a long list of cosmetic defects as well. for instance, the custom leather seats that we paid extra for are wearing holes in them; the driver's side door handle is cracked, drink holders are rusting, and the list goes on and on.
05/17/2001
 While driving about 30 mph transmission went out, no prior warning, mileage at the time was 27000. *al
08/22/2000602/01/2000
 Vehicle is pulling, feels like cruise control is on. when at 35mph vehicle goes a mile before it kicks into another gear. will make an appointment at the dealer. *ak
 While driving between 55 and 75 mph and when vehicle is shifting into overdrive entire vehicle severely vibrates, cause unknown. dealer replaced the transmission and the driveshaft along with other parts which did not correct the problem. please give any furthr details.*ak
503/01/1998
 Whenever shifting from drive or park into reverse, the light would indicate it's in reverse, but actually it was not in reverse. took vehicle to dealer to check. dealer was able to dupliate problems, but no corrective action was identified to date. *ak
02/22/1999105/01/1998
 After several trips to the dealership to have the problem connected to the transmission fixed, the dealership finally replaced the entire transmission. the problem presented itself when after the truck was going, when i had to stop for a light, stop sign or whatever, i would then engage the gas pedal. the truck would only inch away, when my foot was completely down on the gas. the sideview mirror on the passenger side shattered for no apparent reason, while driving on an open road. when i took the truck in to have it fixed, i was told the entire brake system would have to be replaced. the master cylinder was leaking and the shoes and pads were gone. now my truck is currently going back to the dealership because there is a knocking noise in the steering wheel column and a buzzing noise when the fan is turned on for heat.
POWER TRAIN - AUTOMATIC TRANSMISSION - CONTROL MODULE (TCM, PCM)
08/16/2004850002610/16/1999
 When driving to work in the morning i came to a stop light a couple of blocks from my house and when i came to a stop the 99 tahoe lurched forward a couple of times and then stopped. i had to hold the brake down hard to keep from hitting the car in front of me. after that light the automoble worked fine. after work the same thing happened on the way home. this happens every morning and afternoon or when the car sits for a long period of time. the dealer had a hard time finding the problem but what he came up with was that the wiring harness inside the transmission had shorted out causeing the pcm modual to burn up. they didn't seem to think it was a safty hazard. the car is in the dealer now getting the wire harness and the pcm modual replaced and reprogramed. i cannot find any recall notices for this problem. i asked for the old parts to be returned to me.i will pick the car up today 09/01/04 with the bill at over a thousand dollars.*ak
08/15/2000103/08/1999
 Consumer attempted to put vehicle in reverse, the vehicle strongly resisted any movement, consumer realized that some how the 2 wheel drive and 4 wheel drive were engaged and at no time were either turned on, vehicle was towed to dealer and no problem was found, these failures could possibly be due to a faulty transmission control module. *slc
POWER TRAIN - AUTOMATIC TRANSMISSION - COOLING UNIT AND LINES
12/27/1999206/01/1999
 Pinion bearing failed at less than 2000 miles. drivers side door mis-aligned. bad seals at connections for tranmission coolin glines. clunk when accel. from stop and shifting hard. reoccurring noise in passenger side dashboard. reoccurring fan type noise under hood. reoccurring failure of exhaust gaskets.
POWER TRAIN - AUTOMATIC TRANSMISSION - GEAR POSITION INDICATION (PRNDL)
08/03/1999204/01/1999
 All of the gearings had to be replaced two times. first replacement was at 10000 miles. dealership has advised that problem existed because weight limit was exceeded. consumer was not exceeding weight limit. *ak right rear axle seal and another seal on drive shaft failed. *yh
POWER TRAIN - AUTOMATIC TRANSMISSION - LEVER AND LINKAGE - COLUMN SHIFT
03/27/1999
 While driving at any speed and coming to a stop, their is a banging noise and too much play within the transfer case, and within the slip yoke of the transfer case, it binds.
POWER TRAIN - AUTOMATIC TRANSMISSION - PARK/NEUTRAL START SWITCH
02/02/2001110/01/2000
 Transmission stuck in 3rd gear. upon dealer diagnosis they found transmission harness chafed within the transmission housing. this component is not exposed to outside elements. because it is wiring with no exposure, the insulation on the wire should not deteriorate unless subjected to extreme high temperatures or rubbing. *ak
POWER TRAIN - AXLE ASSEMBLY
02/10/2002107/01/1998
 Differential failed and both axles came out from under the vehicle while travelling at approximately 30mph.*ak
08/17/2000406/01/1998
 While towing a travel trailer well within the tahoe limits, the tahoe broke down at 13,800 miles on 5/10/99 with rear end problems, it was repaired. broke down again at 14,531 miles on 5/14/99 it was in the shop until 5/21/99 with rear end problems, then repaired. then it broke down again at 15,319 miles on 5/29/00 repaired by the dealer each time. we were told it would not happen again. we went on vacation this year and got back home. we heard a noise from the back area. we took it in and they said it was the rear end , we were at 33,915 miles on 8/17/00, they however would not repair it even though we are still under warranty (3 years or 36,000 miles). we had to authorize and pay for the repair to be completed, and under protest we did. we had to go have the trailer and tahoe weighed and get a certificate to show we were not overweight. we did and were within towing requirements. we have all the required and proper weight distrubution hitch assembly. we have all our work orders if needed for futher inspection. this problem could have or may result in a serious accident in the future.*ak
603/01/1999
 No summary listed for above vehicle. *ak
POWER TRAIN - AXLE ASSEMBLY - AXLE SHAFT - SEAL
08/31/1999312/28/1998
 Vehicle shudders when braking from high speeds, and pulls to the side when braking from low speeds, vehicle was inspected and it was determined that the right front hub leaked grease on the pad and brake drum rendering the brakes useless, the cause was a seal leaking, four months later consumer experienced problems again, mechanic found that both rear axle seals had leaked grease/oil on both rear brakes rendering then useless and causing excessive wear on the front brakes, consumer requested that the rear axle be replaced entirely which would probably eliminate the brake failure, however dealer stated that they only replaced the axle seals.*jb
08/03/1999204/01/1999
 All of the gearings had to be replaced two times. first replacement was at 10000 miles. dealership has advised that problem existed because weight limit was exceeded. consumer was not exceeding weight limit. *ak right rear axle seal and another seal on drive shaft failed. *yh
POWER TRAIN - CLUTCH ASSEMBLY
09/01/20021409/06/1999
 Exhaust pipe fell off while driving. pipe has been repaired by dealer several times and continues to fall off. consumer is concerned about exhaust fumes when operating vehicle. also, vehicle will stall intermittently while driving.*akthe clutch assembly was also replaced. the engine stalls intermittently. there is a noise emmiting from the fuel pump. *jg
POWER TRAIN - DRIVELINE
06/01/19991
 The differential cover gasket was leaking. nlm
POWER TRAIN - DRIVELINE - DIFFERENTIAL UNIT
02/10/2002107/01/1998
 Differential failed and both axles came out from under the vehicle while travelling at approximately 30mph.*ak
04/03/199904/01/1999
 I have been trying to get the truck repaired by numerous dealers since the day we bought it. the truck had 823 miles on it when we bought it new later on found out it was a demo. arbitration did nothing. we still have the shaking truck. out of despiration from the vehicle shaking violently, causing me to pass bloody stools, i decided to replace the differential myself. it seems to have cured the problem. now that the differential is out, i can see that it is bent and the axles crystalizing due to the violent shaking. chevrolet dealers now say that i have voided my 3 yr 36,000 mile warranty. several chevrolet service consultants rude and threatening to hang up on me. i did have a very good service consultant whom i have spoken to lately who was shocked at my ordeal and agrees with me that this is a safety issue. i am now trying to get reimbursed for my out-of-pocket expenses on my warrantied vehicle. i do not wish to be reimbursed for my time, diagnosing and repairing this truck, but perhaps the problem should be aknowledged by chevrolet and somehow reimbursed by them. if i had not changed the differential myself, i feel that it surely would have caused a major accident and deaths due to the failure of chevrolet not taking care of this. i feel that before we bought this truck, someone really romped it through the desert. it had really large tires on it that we had the dealer change to what was reccomended on the door panel. we asked a mechanic who works on trucks all the time how the axle and differential could have gotten bent like that. his response was, they probably drove it off a cliff. there are numerous complaints to chevrolet regarding this truck. they have a complete history of our complaints after we bought it. there were no records before we bought it. perhaps they repaired the vehicle themselves and didn't have to report what had happened to it. if you would like to discuss the truck in depth, please call me at the number i listed before.*ak
10/22/2000209/01/2000
 The 10/22/00 defect was taken to a chevrolet dealer in michigan. it was fixed and we got the vehicle back on 10/27/00. on our trip back to indiana on 10/30/00, the differential fluid was flying out and it started the high pitch humming again. that was basically twice it went out in one week! as of this date, 11/2/00, it is back to a dealer in bloomington, indiana. *ak
12/27/1999206/01/1999
 Pinion bearing failed at less than 2000 miles. drivers side door mis-aligned. bad seals at connections for tranmission coolin glines. clunk when accel. from stop and shifting hard. reoccurring noise in passenger side dashboard. reoccurring fan type noise under hood. reoccurring failure of exhaust gaskets.
07/01/1999111/01/1998
 Loud bang/clunk noise when stopping or starting to move
12/21/199812/01/1998
 Car has clunking sound whenever you accelerate from stop
POWER TRAIN - DRIVELINE - DRIVESHAFT
03/20/20001
 The floating driveshaft was inadequately lubed causing a popping noise at the driveshaft yoke, the consumer believes this problem caused damage to the transmission. nlm
03/03/2001
 When taking off or stopping theres a squealing noise coming from rear. took vehicle to dealer, and they said driveshaft needed to be lubed. *ak
 While driving between 55 and 75 mph and when vehicle is shifting into overdrive entire vehicle severely vibrates, cause unknown. dealer replaced the transmission and the driveshaft along with other parts which did not correct the problem. please give any furthr details.*ak
03/29/2000
 Vehicle when accelerating from a stop sign or from a redlight vehicle makes noise due to driveshaft being loose . the remedy remedy is to go in and put grease on splines of the output shaft to take out the slack of the connection. *ak
11/13/19991
 Loud clanking noise coming from rear of vehicle when driveshaft is engaging during acceleration. i have changed fluid in differential, but problem persists. *ak
106/05/1998
 Driveshaft and rear end vibrations can not be rectified.
07/13/199806/02/1998
 Vehicle clunks in the rear when starting from stop. dealer lubed the slip yoke and replaced the drive shaft, which did not solved the clunking noise. dealer believes manufacturer is aware of problem but has not released a remedy.
POWER TRAIN - DRIVELINE - UNIVERSAL JOINT
11/04/2004107660204/01/1998
 Dt*: the contact stated while driving 5 mph slowing down to a stop, the antilock brakes engaged without warning. this occurred on a normal road during normal braking. the dealership and manufacturer were notified however no repairs were made. updated 3/17/2006 - the consumer's vehicle was not included int he abs recall. the consumer heard a squeaking noise in the driveline. the dealer replaced the rear universal joint in the driveshaft. *nm
POWER TRAIN - MANUAL TRANSMISSION
04/29/2005171000211/15/1998
 This is the second time i have had to repair my transmission in my '99 tahoe. the first incident left me stranded at 50k miles. lucky i had and extended warranty. the repair shop had to do a full analysis to determine the failure which had something to do with a weak ringreverse gear? this time it appears the same problem has occurred again, only now i have 170k miles. i would have expected the engine to go first. the repair shop said something similar has happened this time as well.
03/14/20011
 The transmission failed while driving. nlm
2
 The vehicles drivetrain causes vibration. nlm
POWER TRAIN - TRANSFER CASE (4-WHEEL DRIVE)
06/11/2007120000103/28/2006
 Defective transfer casing / drive train causing sudden inability to drive vehicle. no ability to check transfer casing oil without going under vehicle for inspection. *ak
08/06/200472098208/14/2002
 Transfer case for the 4x4. this was the most expensive item to repair. gm needs to get a grip on all problems wrong with this tahoe. grinding noise when engaging the 4x4 you thought the bottom of the suv was to drop out. also the knocking in the axle when you start from a stop.*ak