How Does Your Key Fob Work? The key fob uses wireless technology with a frequency of 433 MHz. There are receivers/transmitters on the vehicle and the key, so they can communicate with each other. This ...

Physical keys used to be standard, but today’s cars often have a key fob instead, either built into the key or as a separate remote. Of the many uses for your key fob, it can lock, unlock and even ...

The Car Doctor recommends using a jump-pack as a memory saver when changing a car battery instead of a battery charger. A weak key fob battery can cause issues with restarting a car but should not ...