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  1. #1
    Join Date
    Mar 2016
    Pac NW (USA)

    Default Key not recognized error

    My 2008 xc70 did an odd thing. It would not start, with a message regarding key not recognized. The key fob would work fine to lock/unlock the doors. Ultimately, the only thing that would recover the car was to disconnect/reconnect the battery. Then, no issue starting the car.

    Has this happened to anyone else? I can't find anything regarding this by googling.

  2. #2
    Join Date
    May 2015


    Everything electronic in these Volvo's is controlled by microprocessors and memory chips. Sometimes they get "confused" and some function has an error. Usually, disconnecting the battery will reset everything. A month or so ago I replaced the factory battery in my 2013 and about a week ago I received a low battery warning on the display. I went about my driving that day. That evening I checked the battery output and the charging system. All were as they should be. Guess it was one of those digital gremlins!

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