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    2008 Tahoe Remote Keyless Entry Issue

    Updating this thread with the solution in case anyone comes across the same type of issue. It wound up being the Body Control Module. I picked one up from Amazon, purchased the subscription to ACDelco to download the firmware, and used the VXDIAG VCX NANO GDS2 scanner with the Tech2Win...
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    2008 Tahoe Remote Keyless Entry Issue

    Yes, but once I'm in the truck with the key on, everything works as it should so testing doesn't yield any new info. It's almost as if the truck is acting like an interior light was left on too long and it kills power to the modules in order to save battery life, but nothing is drawing from the...
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    2008 Tahoe Remote Keyless Entry Issue

    Ok, so I picked up a VXDIAG VCX NANO GDS2 scanner which came with Tech2Win pc edition. The only codes coming up are Park Assist Module - U0184 Lost Communication with Radio, Instrument Panel Cluster - U0140 Lost Communication with Body Control Module, and Body Control Module - U0184 Lost...
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    2008 Tahoe Remote Keyless Entry Issue

    Thanks for helping out. I'll have to look into that type of scanner. Will I be able to flash a new module with any type of bi-directional scanner or should I stick with the Tech2? Also, any idea where the RCDLR module is located on these models?
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    2008 Tahoe Remote Keyless Entry Issue

    I wish that were the case but I have one original fob and two new ones with new batteries. The truck acts the same way with all of them. If the fobs were the issue I don't think the truck would respond at all when I first hit the unlock button. And the climate control buttons are the only...
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    2008 Tahoe Remote Keyless Entry Issue

    Thanks for the info. I have new key fobs and replaced the battery in the truck last month. Neither have helped the situation so I think I'll look into the RCLDR next.
  7. L

    2008 Tahoe Remote Keyless Entry Issue

    Hi all, I have a strange issue with my 2008 Tahoe remote keyless entry system. After the truck sits for a few hours, the key fobs will not unlock the doors right away. I have to try a couple of times and then wait anywhere from 30 seconds to a couple of minutes before the fob will unlock the...

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