Cadillac proximity smart key remote allows for a key less entry and ignition system. The fob communicates via radio waves with your car to lock and unlock doors and start the engine. Key less Go.

The fob transmits a unique low-frequency signal to the car's computer system, which then validates that the correct signal has been sent and allows you to push a button on the dashboard or console to start the engine. Shutting off the motor is just as hassle-free: Simply press the start/stop button. And, in addition to key less ignition, also key less entry, allowing you to enter the car without inserting a key or hitting a button on the fob.

Key less ignition systems contain safeguards to ensure that your car doesn't spring to life at the wrong time. Prior tart safety checks by the car's computer ensure that the vehicle is in park and that your foot is on the brake before allowing the engine to start. 

Among other advantages, these systems are designed to help deter break-ins and vehicle theft. Since the car's computer will only recognize a signal from its own fob, thieves will have a harder time getting in and starting the engine. For one thing, the fob can remain safe and snug in your pocket at all times.