Transponder Keys have a transponder chip in the plastic head of the key. The chip emits a signal to a receiver in the ignition. If the does not detect the correct signal, meaning that the wrong key is in the ignition, the vehicle will not start.
When replacing a transponder key, the chip in the transponder key must be programmed to the receiver before it can start the vehicle.
Laser-Cut Keys have a distinctive winding cut with a slightly thicker shank and built-in transponder chips that need to be programmed to the receiver before it can start the vehicle.
Smart keys allow you to lock and unlock the doors, and start the engine while the key stays in your purse, pocket or just about anywhere on your person.
If you leave a Smart key inside the car and the lock button on the door handle is pressed, an alert will notify you and the vehicle will not lock.
Smart key's use randomized rolling security codes as their main form of security. The vehicle's computer recognizes the code emitted by the smart key and verifies it is correct before starting the engine.
The Hamer Toyota Parts Center has Toyota Replacement Keys for your Toyota vehicle and the machines necessary to cut and/or program these keys.