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  1. 2012 Battery heater replacement - or ?

    Care, Maintenance & Service - Chevy Volt
    (First post for me) I have a 2012 with 106,000 trouble-free miles. Bought it used from brother in law in 2014 with 40k miles. It's been a great car. The engine light came on and on-star notified me of a battery issue so I took it to the dealer. $450 to diagnose. It's a battery heater...
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