There is a button under the steering wheel which turns the smart key feature on/off

Our '06 Prius, package 3, has the SKS smart key feature; this key with the chrome Toyota symbol is correct for our vehicle.

Smart key feature works perfectly!!

All Smart Key features work, as well as the fob unlock/lock buttons.

All Smart Key features work, as well as the fob unlock/lock buttons.

Smart key feature works perfectly!!

If you still have a key that works as you will need to hold down buttons on it for it to communicate with the car that will then program the new key you are good to go.

Received promptly and was able to program it for both in-slot engine start/stop, as well as for all remote/proximity SMART KEY functionality using the Chicken Dance instructions from the PriusChat forum (Topic

The dealerships rip u off and will charge you about $350 for one of these programmed