Do you need to re-program a Key Fob after replacing a battery?

Hello,

I have a ’07 Mazda 5 & the remote entry Key Fob battery needs replacing. Do you have to re-program it after replacing the battery
or does the Key fob retain it’s programming info?
Thanks

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One Response to “Do you need to re-program a Key Fob after replacing a battery?”

  1. Hillbilly Locksmith says:

    The transponder chip that allows the car to start is not dependent on the battery and will retain its programming. The keyless entry is dependent on the battery and may have to be reprogrammed. The procedure is in your owners manual.

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