Like anything powered by a battery, a car key fob can die—often at the worst time. Here’s how to change the battery in your ...

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 ...

Q: I recently replaced the original battery in the key fob for my 2010 Kia Sedona. The car does not respond to the fob now. The local battery shop confirms that the fob is working properly. I have ...

Q: The dashboard light on my 2021 Subaru Outback suggested that the key fob battery was low. So, I changed it. Unfortunately, I must have damaged the plastic case in the process. The key won’t hold in ...