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GMC Envoy Electrical Problems

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  • ghg29205ghg29205 Posts: 1
    I just bought my 2002 GMC Envoy on December 15th.

    For the last couple of weeks, at random times during the night (or whenever the car is sitting idly parked) my rear brake lights and front parking lights come on for 5 minutes or so and then by the time I check again a few minutes later they're turned back off.

    This has caused me to have to jumpstart my vehicle several times now over the last few days.

    I've tried several different things as far as adjusting the ambient light settings for when I use my remote door lock and I've also tried simply using my key to lock my car when parking it. Nothing seems to be working.

    I'm dreading taking it into GMC after reading some of the horror stories on here about how difficult it seems to nail down what sort of electrical problem may be at play here.

    Has anyone else heard of anything like this problem?
  • soozie2soozie2 Posts: 4
    edited March 2011
    My 06 Envoy denali started developing problems over the last few months: service stabilitrak lite stays on or goes off whenever. Last month my headlights went out completely and had to replace the low beam relay. Recently the engine light came on but nothing showed up on the diagonostic computer. Three days ago the stop engine warning signal came on and the oil pressure gauge went all the way down. I got out checked the oil it seemed a bit low, so I added a quart and went on my way...started up okay, no warning lights,ran okay, then about a half mile down the whole thing happened again. Scared me to death! I was alone on a dark road waiting for AAA for three hours! Got it to the mechanic who when he did the computer diagnosis was told i need a valve. He replaced it and the engine light is still on. I am so disappointed , I thought I was driving a reliable car. BTW just broke 70k. Any advice?
  • mtuvamtuva Posts: 1
    did they find the problem?
  • soozie2soozie2 Posts: 4
    My envoy denali is still not fixed. It appears there are some serious electrical issues. The computer diagnosis says it is one thing, they fix it then it tells them it is something else. Engine light is still on and so is the stabilitrak light.
  • gmcustsvcgmcustsvc Posts: 4,057
    soozie2,
    Have you spoke with a GM Dealer?
    Christina
    GM Customer Service
  • I have had all the problems that some have mentioned when it comes to this auto. I have replaced the ignition because I couldn't get the key to turn in the lock position so it could be removed. Now I can't get the brake or tail lights to go off when the truck is not running. Has anybody had this same problem and what did you do go get them to go off?
  • I awoke this morning to find my brake and parking lights on and the car was not running. Did you have any success in finding out the problem and what did you do to fix the problem.
  • i have the 2006 envoy, 4.2 inline 6 engine 38k. i've had it for almost a year and never had a problem til now w/it. it started a few weeks ago as my family and i were returning home on the highway the rpms plummeted, power steering failed and the car died completely mid highway. luckily i was able to coast to the shoulder. my hubby (a mechanic) couldnt see anything immediately wrong. i turned the key and it started up again with no problem, like it had never happened. we drove home thinking it was a fluke. it got so bad over the nxt few days tht in the span of a 16 mile trip it did the same thing 10x's. fuses & relays have been switched out, engine parts cleaned & codes wiped at the shop. still doing it and GM said they've not had any complaints with the Envoys to date and no active recalls. my husband deploys in a very short window and i would like to have a reliable vehicle while he's gone especially w/my 2yr old being special needs. any and all help is welcome
  • soozie2soozie2 Posts: 4
    Hi gab: i sympathize....have you talked to a customer service rep from GM? I am currently investigating my ongoing denali issues with them and hope they will stand by their product. If you really research further you'll see there are many issues and complaints with this models electrical systems and suspensions. I might be naieve but i can only hope gm will strive for customer satisfaction and loyalty in making us retain our loyalty with future purchases.
    Good luck.........sooz
  • gmcustsvcgmcustsvc Posts: 4,057
    gaberwokkysmom,

    I recommend having the vehicle diagnosed by a GM dealership. Please keep me updated on your situation. If you have any other concerns or problems, please feel free to email me.

    Thank you,
    Caron, GM Customer Service
  • ericanwvericanwv Posts: 2
    I have a 2004 Envoy that has done the same thing to me the other day....I was driving down the road and nothing was wrong then it shut off....what is happening to these vehicles?
  • I have a 2004 GMC Envoy. I love my vehicle but this happened to me yesterday and my steering wheel went stiff and I couldn't coast to the side of the road. I had to wait in the middle of the road for a tow truck and then they put it on the machine and it said something about a mapping and toggle something I dont even have a navigation system. When I went back to check on my vehicle at the shop, it was closing time and they only guy their just threw me my keys and told me I was ready to go and to come back and pay tomorrow. When I called back up there, they told me that I didn't owe anything that it started right up and they couldn't find anything wrong with it. Weird and my cruise control works sometimes and sometimes it doesn't.
  • gmcustsvcgmcustsvc Posts: 4,057
    rockwell3,

    I would like to set up a case with GM Customer Assistance. To get the case set up, I will need the VIN, current mileage, contact information including a number and the involved dealership sent to me in an email. Any information you can provide will be greatly appreciated.

    Thank you,
    Caron, GM Customer Service
  • stacy21stacy21 Posts: 1
    I have owned my 2003 Envoy for about 7 years and have dumped hundred and hundred of dollars fixing the multitude of issues... The truck almost killed me and my children with its faulty fuel tank issue!! I had gas leaking terrible out of the the tank, GM fixed it under a recall but still!
    I have had electrical issues, air conditioning issues, everything you could imagine and now today, ignition cylinder for $300 !!!! My key wouldnt turn to start the car!!! not to mention my entire instrument cluster doesnt work.. I have no idea how fast I am going or what my rpm's are at or if my water is too hot cause none of the gauges work and they want $700 for that to be fixed !!!! I truly hate all the issues with this truck!!!!
  • amymike36amymike36 Posts: 5
    We bought the Envoy 2 years ago. It had everything I wanted. But it has been one thing after another. We have had the air conditioning looked at, the brakes and now I am having trouble with the gas gauge. I just had my car in the get the grill replaced and condensor due to hitting a bird. The air on the drivers side will not cool, so I took it back. They have checked everything and it is in the control. We have had this looked at before so I am hoping they cover it. The gas gauge one day decides to work and the next it does not. My husband is about over the edge with this car.
  • gmcustsvcgmcustsvc Posts: 4,057
    amymike36,

    Could you please email me your VIN? I would like to look further into your situation.

    Thank you,
    Caron, GM Customer Service
  • amymike36amymike36 Posts: 5
    It is at the dealer today getting looked at. I do not have the information on my right now but will get it to you tonight.
  • gmcustsvcgmcustsvc Posts: 4,057
    amymike36,

    Please keep me posted on any information from the dealership regarding the vehicle. Look forward to getting your email.

    Thank you,
    Caron, GM Customer Service
  • amymike36amymike36 Posts: 5
    Now they are saying leak in the a/c line under the fuel tank. Could cost $500 on up depending on if line needs replaced or repaired. This is crazy.
    Vin# 1GKET16SX56167700. I have never had a car with this many problems.
  • amymike36amymike36 Posts: 5
    At this point I almost want to trade it in. I love the way it drives and the room but to keep taking it in and having problems is not good. I have not heard from my husband yet so not sure what the total on this ones going to be. He might tell them forget it and we will go trade it in for something else.
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