With push-button start systems, you can start your car effortlessly. As long as the key fob is inside the vehicle, a simple press of the button is all it takes.

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

A push button start key fob is a button that allows drivers to start their engine by pressing it. That said, you won't be able to turn on your car if you don't apply your vehicle's brakes.

When you need to find your key or key fob, you may not know which pocket it’s in. Also, you get so used to not using a key that you may forget to turn the vehicle off with the button.

A key fob with remote locking/unlocking and push-button start. A key fob with push-button start and keyless entry that owners can leave in their purse or pocket for virtually all functions.

The id.PUSH+ keyless ignition system features a mechanical push-button start with LED halo lighting all with the added security of a key FOB.

Place the key fob directly on or near the sensor. Even without power, the fob can still be detected using passive RFID technology. Press the brake (or clutch) and push the start button.

Cars have 'secret button' that starts engine even if your key fob dies Around 60 per-cent of drivers with push-button start systems had no idea their car had a hidden emergency start feature.

Law enforcement has observed that many individuals who have these types of vehicles leave the key fob in the vehicle to make their lives a little easier.

Learn how to choose and install a new Ford Fusion key fob battery to keep yours in perfect working order.