Toyota Yaris Owner's Manual page 378

378
7-3. Do-it-yourself maintenance
Replacing light bulbs

Halogen headlights
Reflector type

1
Unplug the connector.
2
Remove the rubber cover.
3
Release the bulb retaining
spring.
4
Remove the bulb.
To install a new bulb, align tabs
of the bulb with the cutouts of
the mounting hole.