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    2016 Yukon - Replaced GPS Antenna AND HMI - NAV Still not working

    UPDATE: Dealer installed new on star module and it all works! Combo of antenna and onstar module talking to the driver instrument cluster and hmi to nav screen and voila. Hope this helps others. GMC techs and technical service advisors did not reccomend - Fix came from this forum...
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    2016 Yukon - Replaced GPS Antenna AND HMI - NAV Still not working

    Thanks I’m relaying the input to the dealer. This is helpful. They are re-assigning it to a new tech. Did you have the same issue?
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    2016 Yukon - Replaced GPS Antenna AND HMI - NAV Still not working

    Couple days later, more troubleshooting - gps and compass works for a couple hours after car sits outside overnight then drops off again.
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    2016 Yukon - Replaced GPS Antenna AND HMI - NAV Still not working

    UPDATE: New Junction Splitter connection installed. GPS and Nav worked briefly but dropped off and again compass reading "CAL" on info cluster and Nav inoperable. Not sure what the hell else could be causing it not to work...
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    2016 Yukon - Replaced GPS Antenna AND HMI - NAV Still not working

    Appreciate it Tom, I’m going to relay this point to the service mgr tomorrow to inquire if this has been done. Yeah for sure you would think that would be part of the replacement installation steps though…! Thanks
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    2016 Yukon - Replaced GPS Antenna AND HMI - NAV Still not working

    Head scratcher
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    2016 Yukon - Replaced GPS Antenna AND HMI - NAV Still not working

    1st post on the Forum - Long time Yukon owner/fan In the process of purchasing a 2016 Yukon SLT with 91k miles from the dealer. Clean history, and excellent maintenance records. I want the truck For wife and kids. Had a couple of things fixed on it and have one lingering issue to go before we...

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