How To Fix Car Key Battery. Replace your battery and close your key fob by pressing the two halves back together. Change lock combinations and rebuild locks to code or key.
Replace the battery in your transponder key remote. How to fix a dead car key battery. If you determine that you have a more complicated issue going on you will need to decide whether it is something worth fixing or if.
Slide the battery compartment into the SmartKey until it locks then slide the mechanical key into the SmartKey to close it.
Fix Car Battery with Acid and Water. Buy a new key fob from a dealer. The cost of a replacement car key battery for a car key fob should cost from 4 fitted car key batteries are a very cheap. While a dead key fob battery should be the first thing to check there can also be other issues that come up with key fobs that may require more work to fix.
