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2008 Buick Enclave disaster and no help from GM

jacarte2jacarte2 Member Posts: 1
edited September 2015 in Buick
I have been reading post after post about problems with the 2008 Buick Enclave. I am another unhappy customer. I have contacted GM with no help from them, like many others I am told I am the only one with these problems. And don't mention that you have read the internet, they don't want to hear that.

My trucks rack and pinnon is bad, my air bags stopped working (GM told me that AIRBAGS should be replaced every 2 years and they could not help me), right headlight well with short so whole well needs to be replaced, truck shuts suddenly on top of you after it raises, electronics in the vehicle go on and off when the feel like it, and so on...

My dealership says, "if you can't afford the rack and pinnon, you won't be able to afford the AIRBAGS" and they won't even look at them. Everyone who has financed one of these knows they ran about 65,000 after everything is said and done. I had an $800.00 car payment and as a single mother for four children, I have to save to fix these problems and I am forced to drive me vehicle. I had a Ford that I was hit head on in and almost lost my life for NO AIRBAG DEPLOYMENT. I had a little PTSD after the accident and bought this vehicle because I needed and SUV but was frightened over the size of the most common SUVs and the BUICK ENCLAVE was beautiful and smaller than the average SUV, so I bought it. NOW, steering wheel locking with every turn and NO AIRBAGS. I too fear for the lives of myself and my children every time I start it.

My dealership tells me too that even if I get these things fixed they are likely to fail again within a short time. I am at a lose. In the end I could probably work out getting the rack and pinnon fixed but what am I to do about the airbags. And is it worth getting it fixed for it to fail again over and over for the life of the vehicle. Then, do I give it up and give this mess to another.

This is my second BUICK vehicle and from this experience I feel that American made means nothing. This is my first vehicle I had bought and paid for with intentions to keep, but it truly is a DEATH TRAP. I wish GM cared more for their customers safety.


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    thecardoc3thecardoc3 Member Posts: 5,772
    You don't have to go to a dealer to have these problems addressed. There are many independent technicians who can handle airbag system and the power steering system repairs.

    There is no perfect vehicle that will never need repairs, they all break once in a while. The question really comes down to whether you have someone available to you can solve these issues efficiently or not. Since it seems that no-one has looked at the airbag system, you can't tell us so we don't even know what code(s) is(are) setting. Lots of airbag system issues are very easy repairs and quite often can just be a wiring connector issue at a given component. Something like that can still allow some (most) of the airbag system modules to deploy should an accident occur.

    Air bags do not need to be replaced at some given service interval and are expected to be lifetime components. There is no reason to expect another failure after this is repaired.

    Your description of the headlight issue needs more information. Exactly what is (is not) happening when you try to turn on the headlights.

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    TrdnbshTrdnbsh Member Posts: 3

    My 2008 Buick Enclave is not starting or cranking, rear lift gate not opening. 40amp starter fuse good, crank and ignition relays are good and working. Also, at the OBD2 port the scanner will turn on but will not connect. What could be the issue?

    Did have codes U0100, U0073, and P0700. Now have numerous BCM codes probably due to low battery.

    Took it to the dealer paid $150 for no answers, told me it would cost over $1000 to check all the modules and that’s not including repair costs and parts.

    I wish I can get this car fixed but it sounds like it’s not worth it.

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    TrdnbshTrdnbsh Member Posts: 3
    edited July 2022

    Crazy thing is when attempting to start this car when it first broke down the lift gate button, when it would work, the car would start. When it stopped working the car will not start or crank.

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    thecardoc3thecardoc3 Member Posts: 5,772
    You don't need a dealer to figure out what is going on here and you don't need to "check all of the modules". You do need to find a technician that is trained and equipped to perform diagnostics at this level. The P0700 simply means that the transmission control module is setting a code and the technician needs to go to that module and prepare to diagnose it. With communication problems the code there could be simply transmission related or it could be because of the communication problem. You won't know that until you can access that module.

    The other two codes are for communication between modules and they are very important. Many vehicle functions require multiple modules working together to complete and when there is a loss of communication between them it can render the vehicle inoperable as you described above. Here are a few steps you can take and tell me what you found and I can start narrowing down what might be going on.

    First, system voltage. If the system voltage is too low all bets are off about how the vehicle will behave. Either use jumper cables, a battery charger and/or replace the battery and then see what works and what does not.

    For example:
    1. Can you operate the windows at the other doors from the driver's door switch?
    2. Does the radio work?
    3. Can all of the doors be locked/unlocked using a key Fob?

    Do you have a volt meter and are you comfortable with testing?
    The data link connector should have 6 pins populated. Pin #16 is power for reference and should be battery voltage. The opposite corner of the connector from pin #16 is where you will find in #1. Measure the voltage from pin #1 to a good ground and tell me what you saw on the meter. Pin #1 is the class 2 data bus.

    Pins #6 and #14 are the high speed data network. Tell me what you measured when you check both of those.

    Pins #4 and #5 should both be at 0v because they are grounds.

    There is a PI on communication problems with these cars. A PI is one step short of a TSB and while it might be related to what is going on with your car you don't start testing that information first. Depending on what you find with these first tests I can tell you if the information there is in play or not,

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    TrdnbshTrdnbsh Member Posts: 3

    Thank you so much for the information. I am going to get the car back from the dealer and do those tests.

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