After you set. Hold button until you hear 2 beeps
You may also need to navigate through the on board menu located below the speedometer and above the steering wheel. The control buttons are on the steering wheel. There you will find options on when you want the setting to take place. Option like do you want them activate when you deactivate the alarm or when you put the key in the ignition. Also you may want to activate the easy exit option which will automatically move the seat back when the key is removed.