B2470 Error code from OnStar - Red light on rear view mirror

Discussion in 'Audio & Electronics' started by TonyR0206, Feb 13, 2018.

  1. TonyR0206

    TonyR0206 TYF Newbie

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    Tony
    My OnStar light in the rear view mirror is glowing a beautiful red color! I had OnStar run a diagnosis and they came back with a B2470 error code. I looked online and it seems it's an issue with the antenna (either just a malfunction or water leakage). Anyway, has anyone on here had this issue? If so, what action did you take? I've read where people have taken their vehicles to the dealership and the dealerships had to remove the head liner....sounded like a nightmare. As my Yukon is no longer under warranty, I'm trying to avoid costly dealership repairs and wondering if there is any kind of a do it yourself fix.
     
  2. swathdiver

    swathdiver Full Access Member

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    I get this one every once in a while and even with the light green. I just reset it because like you said, I don't want to remove the headliner and there's no evidence of water intrusion. Onstar and the phone still work. The cable for mine is about $100 too. But if either quits or water stains appear, I'll happily let the dealer do this one.
     

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