Question about 2015 Chevrolet Corvette

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My ONSTAR module did not work from factory. Module was replaced. Then antenna code B2470-04 came up when diag performed. Dealer replaced antenna. Code still comes up

GM recommends removing the dash to replace the harness. I do not want to remove the dash due to possible squeaks and rattles. Any opinions? Are other people having this issue?

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I don't blame you for not wanting the dash pulled actually. Does the OnStar indicator light, next to or around the area of the blue button you would normally push to contact OnStar, show green and blink when you push the blue button or is it red and or blinking at all times.
There are several bulletins related to the problem but I need to know what the indicator is doing.
Make certain the dealer has performed Document ID: 3975755 before any major disassembly.

Posted on Mar 29, 2015

  • 3 more comments 
  • Richard OGara
    Richard OGara Mar 29, 2015

    The light is blinking red.

  • Bruce Bracey
    Bruce Bracey Mar 30, 2015

    The blinking red light is a definate tell tale, make absolutly sure the dealer performs diagnostics in #PIC6024: OnStar Will Not Connect With Current DTC B2470-04 - (Aug 29, 2014). A coax can be overlayed without removing and replacing the entire wire harness. I would ask them specifically what was checked. Good luck.

  • Richard OGara
    Richard OGara Mar 30, 2015

    ONSTAR works. Just returned from Colorado Springs. They gave me directions. Antenna eerie seems odd.

  • Bruce Bracey
    Bruce Bracey Mar 31, 2015

    Not sure I am following you, was a component replaced or did OnStar begin randomly working?

  • Richard OGara
    Richard OGara Mar 31, 2015

    ONSTAR works while the red ONSTAR appears in the mirror and the diagnostics give the antenna code

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Posted on Jan 02, 2017

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