Transfer Case Problems of GMC Envoy - part 1

GMC Envoy owners have reported 36 problems related to transfer case (under the power train category). The most recently reported issues are listed below.

car image   Transfer Case problem of the 2002 GMC Envoy 1
Failure Date: 05/18/2009

Vehicle will not move when put in drive or reverse from park position. After switching from 4wd to 2hi etc. It sometimes will engage and move. If in fact the vehicle moves it hesitates when making deep turns. For the most part it is stuck in drive and reverse. Transfer case control module was a diagnosed problem by dealership in 2006. New part bought and installed by dealership.

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car image   Transfer Case problem of the 2002 GMC Envoy 2
Failure Date: 02/01/2008

The contact owns a 2002 GMC Envoy. While making a left hand turn at 5 mph, the vehicle made a whining noise and catapulted forward. The vehicle shifted gears and the speed decreased. The gears returned to normal and the contact was finally able to pull over. The vehicle was towed. The contact stated that the reverse gear failed and the first and second gears were barely functioning. The dealer stated that the sunshell in the transmission needed to be replaced in the transfer case. The previous damages led to the entire transmission needing to be replaced. The contact was informed that the vehicle was not included in NHTSA campaign id numbers 03v075000, 01v283000, and 01v334000. The purchase date was unknown. The current and failure mileages were 63,000.

car image   Transfer Case problem of the 2003 GMC Envoy 3
Failure Date: 12/10/2007

Bought my GMC in April of this year 2007. Never had to use the 4x4. Unfortunately with 9 inches of snow tried the 4x4 for the first time and it did not work. Took it to the dealer and they said it was the transfer case was not working and needed to be replaced a 600 estimated service.

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car image   Transfer Case problem of the 2005 GMC Envoy 4
Failure Date: 02/16/2007

- the contact stated that while driving the 2005 GMC Envoy with 32000 failure mileage at 35 mph on many different occasions the vehicle switched into 4 wheel drive on its own and slowed the vehicle down in the process. The contact kept control of the vehicle and pulled it onto the side of the road. The vehicle was towed and repaired on several occasions, but nothing seemed to resolve the problem. The current mileage was 41000.

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car image   Transfer Case problem of the 2002 GMC Envoy 5
Failure Date: 10/16/2006

: the contact stated while driving various speeds, the 4-wheel drive indicator light illuminated, and the vehicle stopped as if the brake was applied when the accelerator pedal was released. Also, a smell was coming from the brakes and the vehicle accelerated without warning. The vehicle was driven to the dealer who determined the transfer case control module needed to be replaced.

car image   Transfer Case problem of the 2002 GMC Envoy 6
Failure Date: 02/11/2006

: the contact stated while exiting the expressway at 45 mph the vehicle lost all transmission control. The engine revved and the vehicle coasted to a stop. The vehicle was put into park however, the vehicle still rolled. The vehicle was towed to a dealer for inspection. Upon inspection the transfer case and module needed to be replaced. There is a NHTSA recall #01v334000, regarding the transmission and transfer case. The vehicle has the same problem as indicated in the recall however; it is not included in the recall due to the VIN. No repairs have been made.

car image   Transfer Case problem of the 2002 GMC Envoy 7
Failure Date: 02/06/2006

The contact owns a 2002 GMC Envoy. The air bag light is constantly illuminated and only dims when the vehicle is turned off. While driving 55 mph, the contact attempted to use the 4 wheel drive, but it would not work. The indicator light remains illuminated; however, none of the 4 wheel drive levels work. The vehicle was taken to the dealer and they stated that the vehicle was not included in NHTSA campaign id numbers 01v283000 (power train:transfer case (4-wheel drive)) and 02v222000 (air bags). The current mileage was 127,000 and failure mileage was 95,000. Updated 01-14-08. The consumer stated the 4-wheel light only illuminated when the vehicle was started. Updated 12/12/07.

car image   Transfer Case problem of the 2003 GMC Envoy 8
Failure Date: 12/24/2005

I was making a slow left hand turn from a stop sign and my 2003 GMC Envoy drive train had locked up causing the vehicle to come to a dead stop in the middle of the road. When this occurred I noticed the lights flashing for the 4wd and 4lo switch even though the switch had not been touched. The vehicle corrected itself and 15 sec later as I was making a left turn into my driveway the vehicle drive train locked up once again. To remedy this I put the car in park and there was a loud clunk and the lights went out and operation went back to normal.

car image   Transfer Case problem of the 2002 GMC Envoy 9
Failure Date: 11/23/2005

While driving my vehicle and the 4 wheel drive switch is in the off position, my vehicle will engage into 4 high and the 4 low light flashes like it's trying to go into 4 low. It will keep switching back & forth from 4hi to a4wd and then go off. This has happened a couple times now. Another time I was turning into a parking space and then my steering wheel became very hard to turn, my car was in 4hi with the 4 low light flashing but the switch was off.

car image   Transfer Case problem of the 2003 GMC Envoy 10
Failure Date: 11/01/2005

I have a GMC Envoy 4wd, on 2 occasions the vehicle has locked the gear into 4wd and 4hi. Vehicle will not respond to command to shift gears to normal driving in 2wd. In turn this leads to problem with the vehicle braking system--vehicle takes too long to stop during normal braking. The vehicle also becomes very unstable on the road--keeps shifting sides making hard to keep the vehicle in a straight alignment during driving. I had the vehicle inspected by a GMC authorized dealer in November, 2005 at which point they found out that there was a problem with the transfer case which causes it to break apart. This in turn causes all the other systems in the vehicle to malfunction because it's a computerized system. The transfer case was replaced which temporarily fixed the problem until Feb, 2006 and the same problem recurred. I have made GMC aware of the problem and they referred me to the dealer. On speaking with the dealer I became aware that this is an ongoing problem with GMC Envoy and the dealer is aware of the problem. The only way GMC is resolving the problem is referring customers to the dealer for a replacement on the transfer case--which happens to be the same one that keeps malfunctioning. At this point GMC does not have a different transfer case that will resolve the issue once and for all. GMC is also willing to fix your vehicle as long as it's under warranty but once it's out of warranty and the problems with the transfer case persist, you have to pay out of pocket. GMC is aware of this problem with the transfer case but they are not letting the consumers know.

car image   Transfer Case problem of the 2003 GMC Envoy 11
Failure Date: 10/26/2005

Electronic problem with 4wd was supposedly corrected in 2004, transfer case for 4wd was replaced in April 2005, and 4wd failed again during first day trying to use it during icy conditions after it was "repaired" in April. Had to drive on dangerous, slick roads without 4wd from fairbanks to palmer, ak. This is a major safety issue in alaska where winter driving can be very hazardous without 4wd. Have had it into dealer several times for loud squeak under vehicle when making turns or going over bumps at slow speeds. No corrective action by dealer. Could not get vehicle out of "park". Had to have it towed to dealership. They disconnected something and told me to be careful because whatever they did would allow the vehicle to be put into "drive" without having brakes engaged! had to drive it this way for several weeks until they got replacement part. Have had other problems with climate control, wind noise around windows, and more. None repaired satisfactorily.

car image   Transfer Case problem of the 2002 GMC Envoy 12
Failure Date: 08/01/2005

I have a 2002 GMC Envoy sle VIN # 1gkdt13s322480641 purchased and serviced by by malouf in north brunswick, NJ. I have complained on two occasions that the 4 wheel drive light switch jumps from 2-high to 4-wd and continues to blink. While this is happening there is a faint scraping sound from under the vehicle and than the vehicle slows down to a gradual complete stop. It feels like the brakes are being applied. There also a faint odor of burning brakes. This 1st happened around August 1 2005 and than again in oct 2005 two times the 1st time the dealership re- programmed the computer and up dated it, its was ok for a little while. Than it happened again in oct. They told me there was nothing they could see and that everything was working the way it should be. There is something very wrong with this vehicle and im afraid this is going to happen at higher speeds. Please get back to me as soon as possible.

car image   Transfer Case problem of the 2002 GMC Envoy 13
Failure Date: 01/07/2005

My vehicle is a 2002 GMC Envoy. I have had 3 incidents with the 4 wheel drive system in this vehicle since December 2003. The newest feature with these vehicles, as with the cheverolet trailblazers is the automatic 4 wheel drive system. This system allows the driver to put this lever in and the vehicle will be in 2 wheel drive and will switch to 4 wheel drive when road conditions are a necessity for 4 wheel drive. My vehicle's 4 wheel drive system broke in December 2003. It was reported to me from alaska sales and service who repaired the vehicle that the front differential had to be replaced due to the 4 wheel drive system. Then there was a leak of some fluid under the vehicle noticed April through may 2004. The vehicle was in the shop at alaska sales/service again and a transfer case was replaced in the vehicle. Come winter in 2004, my 4 wheel drive needed to be used again due to weather in alaska. My vehicle was in for a major checkup on Dec 14th, 2004 and I was told the 4 wheel drive system was in good shape. I had the vehicle back in the shop within 2 weeks for a loud noise in the 4 wheel system. Again the vehicle was in the shop and another transfer case was replaced. My major complaint to the federal consumer complaint system is that this vehicle is a 2002, and this vehicle has been in the shop for the same problem more than 3 times under the 3 year new car warranty. I feel that the general motors corporation should buy this vehicle back or purchase a new vehicle for me due to the problems I have had to endure. I am in the process of finding a lawyer in alaska that will support the automobile lemon law.

car image   Transfer Case problem of the 2002 GMC Envoy 14
Failure Date: 12/31/2004

Transfer case( 4-wheel drive) wasn't engaging. Vehicle was inspected by a dealership, who indicated that the transfer case shift control module was defective, and needed to be replaced. They also indicated that the part had to be ordered. A week later when the consumer contacted the dealership to inquire about when the part will arrive they were informed not until March due to the part being being re designed. The part # was 12590220.

car image   Transfer Case problem of the 2003 GMC Envoy 15
Failure Date: 12/16/2004

The consumer experienced a problem with the four wheel drive. The owner says that the light for servicing comes on and the vehicle has been to the dealer for servicing on 9 occasions in the last 18 months. The dealership doesn't seem to know what the problem is all about. The diagnosis are as followed: on three occasions no problem was found, there were three transfer case repairs, there was a faulty ignition switch found related, wiring had to be replaced and a vdb was installed.

car image   Transfer Case problem of the 2004 GMC Envoy 16
Failure Date: 12/07/2004

There is an issue with either the transfer case or transmission of my 2004 GMC Envoy xl. On several occasions, while performing slow maneuvers (20 mph or less) in and out of parking spaces or making slower right or left hand turns, the vehicle feels as if it is being held back by something, until a loud clunk is heard as if a gear disengages, and then the vehicle jumps forward. This has proven to be dangerous to me, as I have felt more than once like I hit something. The vehicle also experiences very hard downshift, into first gear as the vehicle comes to a stop. This issue first appeared on the vehicle in December 2004, and has continued intermittently through the current date date (for more than 5 separate instances).

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car image   Transfer Case problem of the 2002 GMC Envoy 17
Failure Date: 11/09/2004

Computer that activates the four wheel drive is inoperable. It goes into sleep mode and consumer doesn't know that he is in 4-wheel drive. Consumer contacted the dealer, who updated the computer. It seems to be fine.

car image   Transfer Case problem of the 2002 GMC Envoy 18
Failure Date: 10/28/2004

Failure of engine cooling system and four wheel drive system.

car image   Transfer Case problem of the 2002 GMC Envoy 19
Failure Date: 09/07/2004

While driving at a low speed and turning to the left, the four wheel drive engaged. The dealership replaced the selector switch twice for the four wheel drive.

car image   Transfer Case problem of the 2002 GMC Envoy 20
Failure Date: 03/17/2004

Our 02 GMC Envoy randomly shifts the transfer case into neutral while driving causing a no power situation in traffic. This has put my wife and child in danger on more than one occassion.

car image   Transfer Case problem of the 2003 GMC Envoy 21
Failure Date: 02/29/2004

4-wheel drive light, my 2003 $35,000 Envoy's service 4-wheel drive light came on the first time at 574 miles. The second time at 4,242 miles. The third time at 6,490 miles. The fourth time at 9,387 miles. It was then towed in for a fifth time just after that for several other problems. It went through three ignition switches in one week. It has had the transfer case modules, actuators, front hubs and more done. It has been reprogramed each time as well. I have only owned the vehicle for 9 months. I contacted gm about this and was told about a repurchase then told no. I hate my Envoy and I will never purchase another gm product!!!!!!! everyone that asks me about it I tell them my story so I hope it gets around how bad this is and how bad this sucks! my dealership has been helpful but the reps from gm suck! I was never given a reason as to why the gm rep (moiz ahmad) said "no" and I was told that he not only doesn't have to give a reason that he doesn't have to call me when I asked for him to. And. . . They will not give me any information to even contact this guy. "they don't have to". Then when I complained that this was "unexceptable" and asked to speak with a supervisor the supervisor hung up on me!!! I was not very suprised to see that I am not the only one with this problem. I looked up the service bulletins and recalls (at alldata. Com) and there were several bulletins on this. Gm needs to get the Envoys act together!!!! I am going through NY state lemon law now. Wish me luck!.

car image   Transfer Case problem of the 2004 GMC Envoy 22
Failure Date: 01/10/2004

Service 4wd light came one with 2500 miles on new 2004 GMC Envoy. Replaced actuator, then a control module on transfer case. Was told neither fixed the problem. Now told the transfer case must be replaced.

car image   Transfer Case problem of the 2002 GMC Envoy 23
Failure Date: 12/28/2003

Transfer case: while driving at highway speed of about 65 mph with the transfer case swtich set to a4wd the trransfer switch without any input or operator control switched to 4hi (both the switch position and indicator light) and the 4lo indicator light was flashing amber indicating the transfer case was attempting to swtich into 4lo. This has occurred aproximately 6 times previously at various speeds, while driving striaght or conducting turning maneuvers; but only when the engine is warm. The latest incident on 12/28/2003 (prompting this complaint) occurred after the dealership completed the remedy specified by service bulletin 02-04-21-002a on 12/26/2003.

car image   Transfer Case problem of the 2003 GMC Envoy 24
Failure Date: 12/17/2003

While driving the 4 wheel drive automatically engaged. The consumer tried to manually disengage it several times. The dealership was notified, but has been unable to resolve the problem. Please provide any additional information.

car image   Transfer Case problem of the 2003 GMC Envoy 25
Failure Date: 12/11/2003

When vehicle started up, 4-wheel drive light came on. Diagnosed as no codes stored in atcm. Old atcm programming scanned for codes no codes stored. Reflashed atcm with new update.

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