I am writing to advise the nhtsb of a potentially dangerous defect in the gm 4l60-e transmission and to request the nhtsb open an investigation to identify and resolve said defects. My request is in reference to the reaction sun shell, a part within the 4l60-e transmission prone to catastrophic failure. I own two gmc jimmy 4x4 suvs. My first jimmy is a 2000 with 60000 miles and the second is a 2001 with 50000 miles. Within the last 2 months, the reaction sun shell in both of the vehicles has failed, resulting in severe damage to the 4l60-e transmissions. The failures occurred during the operation of the vehicles at highway speeds. In both cases, there was no warning of a pending failure. Both suvs experienced a sudden loss of 2nd, 3rd, od, and reverse gears, resulting in significant degradation in the performance of the vehicles and drastically reduced the operators ability to control the vehicles. Failure of a single transmission in any vehicle can be attributed to a variety of circumstances. However, identical failures in multiple 4l60-e transmissions strongly indicate a systematic fault in design and/or quality. Both vehicles experience only light duty operation and are very well maintained. Gmc has been made aware of the failures verbally and in writing. Thus far, gmc has refused to accept responsibility for the fault in design and/or quality and has stated it is unwilling to correct the problem. However, gmc is aware of the problem and its magnitude as evidenced by gmc tsb 00-07-30-022. Any time there is a sudden and drastic change in the operating characteristics of a motor vehicle, the operator is presented with a dangerous situation threatening the safety of the operator, passengers, and fellow drivers. With this in mind, it is my hope that the nhtsb will investigate the grievance I have presented, identify the fault as a systematic failure on the part of gmc, and issue the appropriate recall necessary to ensure the safety of everyone on our highways. *ak
2000 GMC Jimmy transmission complaints
Page 2 of 2: complaints 11 to 29 of 29, newest first, as owners wrote them.
Loud humming sounds, and front wheels lock up when brakes applied. Both left and right side hub bearings failed. Both hub bearing kits were replaced by the dealer at a cost of almost $1100.00. This vehicle had just turned 70,000 miles and has never been off roading.
Many problems with this 2000 jimmy. Bought it used from carmax at 18k miles on jan 2003, got ext. Warranty, but soon after, front brakes need to be replaced, replaced by carmax for free, but 6 mos later brakes needed replaced. Was advised that rear rotors and brakes were almost at end of life. 9 mos later, replaced rear brakes and rotors, not covered under warranty due to wear and tear, spent $450 as well as replacing serpentine belt and flushing break fluid, total cost $650. Problems with sunroof started in apr 2003, it finally stopped working and was replaced at 43k miles under ext warranty, had to get new battery, noise in under carriage on drivers side, determined to be problems with hub bearings and idle arm, inner tie rod, all replaced under ext warranty, total cost would have been $750.
My 2000 jimmy has oil leaking from the oil cooler hoses, this is a known issue on these vehicles. Where is the recall? Also, my gas gauge is displaying inaccurate readings. I hear this is also common on gmc jimmy's. Where is that recall? Now to go along with my power window switch not working, molding coming loose, rear inside door handle breaking off, etc. All this with only 49,000 miles.
2000 jimmy envoy is one big piece of junk!!!!!
I have a 2000 slt jimmy which has been a pain. I've had lower ball joints replaced, upper ball joints replaced, major problems with the brakes, u joints replaced, hub and wheel bearing problems, altenator failure, A/C blower motor replaced, broken blend door which caused encoder motor and module failure, rear wiper moter replaced, back window lock replaced. Too many things have gone wrong with this vehicle. Gmc should consider some sort of recall because I've read many complaints regarding some of the same issues.
While driving vehicle stalled without warning. Dealer diagnosed that transmission had failed. Consumer made reference to tsb#010730038 from gmc regarding transmission issues that may result in failure.
I purchased a 2000 gmc jimmy with 34000 miles on it and at 38000 miles the transmission failed. The sun shell granaded as the service people at gmc dealership put it. Now with 83000 miles the transmission did the same thing. Is there something wrong with the sun shells? Is anyone else having this problem. All of my miles are highway miles and I have all my maintanence records to prove that I do scheduled maintanence on my vehicle. I also do not abuse my vehicle and do not tow anything. I'll go broke if the vehicle requires a new transmission every 40000 miles. Each time it cost approx. $4,000.00 to fix. Can anyone help? Thank you
The dome override button when pushed four times within 6 seconds disables the automatic exterior lights, including the headlights!. The option was was not listed in the users manual. We were driving at night when I found it by accident while trying to turn on the dome light. General motors admits that this was overlooked and not included in the 2000 manual. It almost got us in an accident or possibly worse. If I found it by accident, sooner or later someone else will too. The next time, it might get someone killed. People who own these 2000 models need to made aware of this option. I suspect that this omitted option is not just limited to the 2000 jimmy and fear that it may involve many, if not all of the 2000 gmc vehicles which have this dome override button. Dt
This vehicle was delivered new all four wheels out of balance, out of alignment, and a severe driveline vibration. The cure for the driveline vibration was to reinstall the driveshaft because it was a 180 degrees out! I do not know how many other jimmy's were delivered like this, but it sure was a serious problem for us. Shame on general motors!!!!! Dt
This car has continually had transmission problems. I have also stopped in the dealer on 2 separate times about the transmission. The mechanic hooked up a computer to see the problem. I was never given a work order sheet for those 2 times. It has also been recalled for seat belts & ignition switch. Mr
While driving 50mph lost acceleration and all gauges.
Rear axle gears failed- gears sheared-new unit installed.
I am frustrated with all the problems with this vehicle. No safety defect listed.
Transmission failed slipped between 1st. And 2nd. Lost reverse.
There were no lights in gear shift box located on floor. Consumer was unable to see the gear shift indicator while driving at night. Dealer/manufacturer notified, and informed consumer that vehicle was designed that way. Any added parts would be at consumer's cost. *ak
Intermittently, vehicle does not accelerate after stopping, this happens only on warmer days when the AC is on, dealer is not able to locate problem. Cj
When vehicle is in park, and consumer puts vehicle in drive, gear gets stuck, it won't move. Also, car will not go into any gear. Dealership was notified. *ak
At first we noticed the passenger side floorboards were very wet. We proceeded to look under the vehicle, since it had been raining recently. Then we saw transmission fluid from the front of the transmission. To the rear drive axle. Immediately the vehicle was taken back to the dealership. Where the transmission pan gasket was replaced. Then the transmission pump and o-ring.a passenger side door gasket was ordered that was determined to be leaking. While waiting for the door gasket to come in, it had not rained in two weeks, but the floor continued to stay wet.since it is very hot here we notified the dealer when it was taken in for the door gasket replacement. The air conditioning drain lines were blown out to correct this problem.
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