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, a butter knife or another key.

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.

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

Replace the Key Fob Battery ASAP Key fob batteries typically use flat, round lithium cells, most commonly CR2032 or CR2025, which are inexpensive and widely available at convenience stores ...

If a visual of the battery replacement is needed, the YouTube video on changing the battery in a mid-to-late 2010s Chevrolet Equinox key fob shows how to pop the battery out and place in the new one.

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.

If the battery in your car key fob has died, here's how to replace it – including the type of battery you'll need and the cost involved.