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?

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 ...

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

When the battery is removed from the key fob, the fob can lose its ‘memory’ or programming. If the key fob is not working after replacing its battery, a reprogramming procedure may be required.

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 ...

When your Honda key fob runs out of battery, you can take it to a dealership, but it's pricey. It's much cheaper and not too difficult to do it yourself.

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.

Do you get a warning message on the screen that the battery in the remote control key fob needs replacing when starting your car? This wireless technology needs the power to work. If you’d like to ...