Like anything else relying on a battery, your car key fob can die—often at the worst time. Thankfully, these batteries are easy to replace. The post How to Change the Battery in Your Car Key Fob ...

Watch this video to see how to change the battery in your key fob. How to replace car key battery Most key fobs have a little slot you can use to pop them open with a small flatheaded screwdriver ...

There’s usually a mechanical key hiding inside the key fob for cars with push-button start systems, so you can still unlock your door if the car battery or your fob battery runs out of juice.

There’s usually a mechanical key hiding inside the key fob for cars with push-button start systems, so you can still unlock your door if the car battery or your fob battery runs out of juice.

Assuming the battery was the problem and not the fob itself, it’s usually not difficult to replace the battery yourself. If that’s not possible, you'll need to take the fob to a dealer or garage.