Toyota Yaris: Items to initialize
Third generation (XP130; 2010–present) / Toyota Yaris XP130 2010–2026 Owner's Manual / Vehicle specifications / Customization / Items to initialize
The following items must be initialized for normal system operation after such cases as the battery being reconnected, or maintenance being performed on the vehicle:

Customizable features
Your vehicle includes a variety of electronic features that can be personalized
to suit your preferences. Programming these preferences requires specialized equipment
and may be performed by your ...
See also:
Rear window and outside rear view mirror defoggers
Defoggers are used to defog the rear window, and to remove raindrops, dew
and frost from the outside rear view mirrors (if equipped).
Turn the defoggers on/off
The defoggers will automatically t ...
Seat belts
Make sure that all occupants are wearing their seat belts before driving the vehicle.
■ Correct use of the seat belts
● Extend the shoulder belt so that it comes fully over the should ...