Recent content by Tahoeman12

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    2012 TAHOE HYBRID CODES P0AC4, U186A, U186B

    I'm in possession of the truck and it's driving great and it's not gone into limp mode yet..... they did clear all the codes so hopefully that will make a difference. If the problem persists then I will try to find another shop that has the software to dig deeper into my issues. What I'll do...
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    2012 TAHOE HYBRID CODES P0AC4, U186A, U186B

    yep, they took it for a test drive and couldn't duplicate my issues and parked it and told me to come get it.
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    2012 TAHOE HYBRID CODES P0AC4, U186A, U186B

    ugh. Ok, thank you. I'll keep trying to figure this out. I'm super bummed the dealership wasn't much help. He actually told me they don't really work on vehicles over 10 years old either. What a racket.
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    2012 TAHOE HYBRID CODES P0AC4, U186A, U186B

    so, the truck has been sitting at the dealership for 10 days and they can't get the truck to duplicate any of my issues. Weird that with all the codes that they pulled up they can't do a little bit of diagnosing but they called and asked me to come pick it up. I asked if they can restore the...
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    2012 TAHOE HYBRID CODES P0AC4, U186A, U186B

    thank you for your detailed response. Would the fact that I go into limp mode and lose all gears forward and reverse point to the transmission control module as being my problem? I can't afford not to fix this as I have a buyer for this truck and I need the funds. Caught between a rock and hard...
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    2012 TAHOE HYBRID CODES P0AC4, U186A, U186B

    just an update, it's going to the dealership on Wednesday as my local shop doesn't have the proper software tools to clear the main code which is the P0ac4 code, also it being the Hybrid model he didn't want to touch the truck to be honest. Will see what the dealer thinks.
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    2012 TAHOE HYBRID CODES P0AC4, U186A, U186B

    Ok. You're probably right. I'm dropping off the truck tomorrow at my local shop. I'll post back with an update.
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    2012 TAHOE HYBRID CODES P0AC4, U186A, U186B

    ok, the problem is in order to get home after the truck went into that limp home mode I had to disconnect the battery to get out of the lane of traffic and get home. by then I had zero codes for him to check. he did put in live data mode but everything checked out ok. bizarre.
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    2012 TAHOE HYBRID CODES P0AC4, U186A, U186B

    just an update, my mechanic couldn't diagnose the problem(s) so I'm taking it to the local shop that I trust. I cleaned the throttle body which didn't really do much. I thought about replacing it but do not want to throw parts at it without knowing it's the problem. I'll keep this post updated...
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    2012 TAHOE HYBRID CODES P0AC4, U186A, U186B

    ok, I do not have any aftermarket equipment tied to the OBD. I'll look into the fan idea, thank you.
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    2012 TAHOE HYBRID CODES P0AC4, U186A, U186B

    thank you for the welcome!
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    2012 TAHOE HYBRID CODES P0AC4, U186A, U186B

    Good morning forum members, I've not found much info on my condition but here's the short of it. Back in March I was going about 75mph on the Garden State Parkway when I got the traction control and reduced engine mode dash warning lights/errors when it all just shut down on me in the far left...
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