See also:

Deleting the button assignments
1. Press buttons 1 and 8 simultaneously for approx. five seconds. 2. "OK" ...

Deleting contacts
1. "My contacts" 2. Highlight the contact. 3. Open "Options". 4. "Delete contact" or "Delete all contacts" ...

Starting destination guidance
1. "Navigation" 2. "Last destinations" 3. Select the destination. 4. "Start guidance" ...