Most key fobs will continue to work normally after a battery change, but if your fob doesn’t respond it may require reprogramming. Check your owner’s manual or call your dealership for ...

The key fob is your lifeline to your car, letting you unlock the doors and set off the alarm, at a minimum, but how can you tell if it needs a new battery?

If you're looking to pick up a new key fob, or repair one, you might wonder how long programming it takes and whether or not you can do it yourself.

Snap the halves of the fob back together. Test it to see if it works. This process also works with other small devices, such as garage door openers.

How To A Program GM Key Fob A key fob, also called a keyless entry remote or keyless transmitter, controls your vehicle’s locks, trunk and alarm from a distance. Every key fob must be programmed to ...

New key fobs must be programmed with codes that the vehicle has to read before it unlocks the door or allows starting the engine.

We take these key fobs completely for granted, but they are actually quite clever. In order for them to work so well, they have to solve two big problems.