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 ...

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.

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.

But maybe you’ve experienced the downside: The cost to replace the latest key fobs can be as much as $400 depending on the brand. Then add another $20 to $130 to program it to work with your car.

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.