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.

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.