Stop engine/low oil pressure display continually comes on and while driving, the vehicle hesitates and at times will stall. After replacing PCM, oil sending unit, throttle body assembly, cleaning the PCV valve and map sensor and multiple other parts, I was told that the dealership did not know what it was and stated that they could replace the cam shaft actuator (for a cost of approx. $885), but they could not guarantee that would resolve the problem. I have taken my vehicle back to the same dealership from 02/14/2011 until 11/07/12 and still unable to fix the problem. I've filed a complaint with GMC manufacturer, but still have not been able to resolve my issues.

- Azle, TX, USA

The contact owns a 2002 GMC Envoy. The contact stated that the power seats and mirrors would move independently. The vehicle was not taken to a mechanic. The vehicle was not repaired. The manufacturer was not contacted about the issue. The failure and current mileages were 105,000.

- Pinckney, MI, USA

I purchased a 2002 GMC Envoy new in 2002. Early this year the starter quit working, I had it towed to the dealer, they told me the starter was bad and it would cost $625. I repaired cars for 30 years before I became handicapped, now I am unable to repair, when I did repair I put about 20 starters in for $39 for the starter and 1 hour labor.

- Port St John, FL, USA

The contact has a 2002 GMC Envoy. The contact stated that the master switch burned out on the vehicle. The dealership told the contact this part has been failing on many of these vehicles and the part is on back order, so the vehicle can not be repaired at this time. The failure mileage was 76500 and the current mileage was 77000. The VIN was unavailable.

- Vanefvillo, OH, USA

Vehicle has had numerous electrical problems. Mirrors won't adjust, seat won't adjust, radio doesn't work, service engine light comes on, service air bag light comes on, car stalls at traffic lights, cruise control won't work unless I turn off engine and restart. Vehicle was serviced by one dealer who could not find anything wrong. Second dealer could only find air bag module burned up and charged $1500 to replace.

- Mcallen, TX, USA

Electrical problem under dash. Dash lights, odometer, and gear position indicator light inoperative. Dealer is changing the dash cluster module.

- Fallon, NV, USA

2002 GMC Envoy slt. Engine stalls at highway speeds. Loss of power brakes and steering. Engine will not restart for anywhere from 20 to 30 minutes. This is the 5th time that this has happened to me in the past 4 years. 4 times on the freeway and once on a surface road. This time I was with my wife and 11 month old daughter. I was not able to pull the car over to a safe location. I ended up in the left shoulder in next to the fast lane with only about a foot of space to my right where the cars were whizzing by. I cannot tell you the terror that I felt, as my daughter was in her child car seat on that side as the cars passed honking. This vehicle is very unsafe. I have read many internet postings and it appears that this problem occurs often with this make and model, yet whenever I take the vehicle to the dealership all I get is: No codes are displayed, we can't duplicate the problem, or they start throwing parts at it. So far I have replaced a fuel pump and a crank angle sensor, had the fuel injectors cleaned. The problem persists. I want to make sure that my description is clear. The engine temperature is normal, voltage is normal, outside temperature can be hot, warm or cold, it can be day or night. It has happened in all of these conditions. What is worse is that I cannot restart the engine for around 20-30 minutes, presumably there is some sort of reset on the computer ECM/PCM that occurs that grants me the right to now drive my vehicle again? this is unacceptable. My daughter, my wife or I could have been injured or even killed. I have never complained about this before except to the dealer but now that I have a baby, I am livid. I am a very experienced driver and have always been able to pull the vehicle to safety even without the power assisted brakes or steering. I very much worry about less experienced drivers such as my wife who is from a foreign country and has only been driving for two years. If she had been driving we would have.

- Lake Elsinore, CA, USA

I own a 2002 GMC Envoy bought used and it has been a nightmare since I bought it thankfully I purchased an extended warranty. Now they say the main fuse block has gone bad, how I couldn't guess, and they say it is not covered under the warranty. Is this not an electrical hazard that should be covered before something drastic happens, I can't believe I'm the only one this has happened to considering everything that has gone wrong with this vehicle!

- St. Paul, MN, USA

After starting the car, a burning smell entered the cabin. Noticed the volt gauge was only reading about 9 volts instead of the usual 14. Took car in for check up, and found the alternator had failed. After removing alternator found that the pulley could not be turned as the unit had seized up. This also damaged the tensioner which had to be replaced along with the serpentine belt. The mechanic indicated that we were very close to having a fire.

- Oakland, NJ, USA

The contact owns a 2002 GMC Envoy. Upon entering the vehicle, the contact smelled an egg odor and detected fumes along with a burning smell. The contact did not drive the vehicle. Three weeks later, the vehicle was taken to a dealer and they discovered that the front door multi-function switch burned, melted, and needed to be replaced. The current and failure mileages were 60,000. Updated 4/16/08

- Cincinnati, OH, USA

Electrical system failure.

- The Woodlands, TX, USA

The electrical system shut down while driving 45 mph on the highway. There was no warning. Consumer called for a tow truck so that the vehicle could be inspected. The entire electrical system had to be replaced and updated.

- Larose, LA, USA

Consumer had all of the weather proofing on the vehicle replaced by the dealer as well as the clutch assembly. The fan clutch was replaced, the air bag indicator light came on. The consumer was told that nothing could be done if the light wasn't on at the time. The plastic trim from the seat belt broke, the seat belt failed again, the transmission would drag, the engine light was on and made a grinding noise, the drivers side tire was loosing pressure, the passenger inner door seal leaked, the clock on the radio would reset itself, the drivers side seat belt would lock up when the brakes were applied they would skid and pull to the right.

- Fort Gordon, GA, USA

In Oct. 2003, I was driving to work in rush hour traffic and upon coming to a traffic light my Envoy stalled out and instrument panel went blank; car would not restart & message displayed to service engine & contact onstar, I was unable to get Envoy off of road & sat there for 45 minutes waiting for tow truck to tow vehicle to royal Oldsmobile where they said they replaced computer system; since that time in Jan 2004 vehicle was in garage & would not start; vehicle was pushed out of garage & battery was recharged with jumper cables; vehicle was taken to royal Oldsmobile & I was told that battery was leaking & that they had replaced battery; this vehicle has been the most unreliable vehicle I have ever had; I am leasing this Envoy & I am afraid it will stall out again; also last summer without warning, the air conditioning just quit working while driving on vacation; after Envoy was cut off & engine cooled, then air conditioning started working again; this is a leased vehicle & I want to know who I can talk to about turning vehicle in early & also what information is available about Envoy stalling out without warning.

- Pelham, AL, USA

I have had multiple electrical and transmission problems with my 2002 GMC Envoy. Yesterday my family and I were driving on interstate 80, while on cruise control, the SUV shut off. I barely was able to get to the side of the road. I almost hit a vehicle getting off the highway since I lost power steering. After 15 minutes of not starting, it finally started. I took the vehicle to the dealership and they couldnt find anything. I have written many letters and tried to convince GMC that this SUV is not safe.

- Painted Post, NY, USA

My 2002 GMC Envoy lost all power three times at high rates of speed. The first time we had it serviced and I was told a module needed replaced. The second time, the car shut down at highway speeds but restarted approximately 15 minutes later but then the same thing happened again the next day while my wife was driving home from work traveling at 65 mph down a highway. We had it serviced again and this time I was told it was due to a loose wiring harnass. Car has had numerous problems since and it is an unsafe vehicle for my family to be transported in.

- Youngstown, OH, USA

Windshield wipers and transmission are not functioning properly due to a malfunction in the electrical system.

- Lake Jackson, TX, USA

Consumer states while comiing down a hill PCM shorted out. As a result, driver lost all electrical functions. Steering wheel got really stiff. Brake pedal became hard to press.

- Jonesboro, IL, USA

The GMC Envoy's electronics fail. No dash instruments or radio controls. Happens intermittently. Occurs when driving. The engine races unexpectedly. This has happened 10 to 12 times. The slv-truck is currently at the dealer who is once again attempting to repair it.

- Champaign, IL, USA

Transmission does not work properly. Have had it repaired twice, but still vibrates, and fails to move vehicle forward at times, from a dead stop. Is very dangerous at intersections where moving quickly is imperative. Also wiring problems which operate various remote instruments (mirrors, seats, etc.) fear of fire. Rear door latch was replaced - clicks "locked/unlocked" while driving. Seats move on their own while driving.

- Pomona, MO, USA