On modern Chevrolet key fobs, the key itself is used as a tool to help you swap out the old battery for a new one.

the first step was to disassemble the already broken key fob and separate out the PCB from the case and battery holder. With those removed, a coin cell was soldered to some wires connected to the PCB.

Everyone knows what the lock, unlock, and trunk buttons on a key fob do. Yours might also have a panic button, but how can ...

Audi key fobs are no different ... be simultaneously depressed while pulling the outwards to slide the battery-holder out of the housing. Once released, the battery can be popped out and the ...