Like anything else relying on a battery, you car key fob can die—often at the worst time. Thankfully, these batteries are easy to replace.

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 key fob quickly and safely.

Pop out the battery, replace it with a new #2032 battery (positive side down), the clip the key back together and refit the manual key. If your key is brand new to your car you will now need to look ...

If your key fob isn't working, it probably needs a new battery.

Q: After losing one of the two key fobs for my 2008 Nissan Altima, I purchased a new fob from a hardware store and they programmed it. After seven months, the car stopped recognizing the key, and ...

Emergency solutions for when key fob battery dies Also, keep prevention – changing a weakening fob battery – in mind.