Toyota Yaris: Instrument panel light control

To adjust the brightness of the instrument panel lights, turn the dial.
With the dial turned fully up, the intensity of the instrument panel lights will not be reduced even when the tail lights/headlights are turned on.
Emergency flashers
To turn on the emergency flashers, push the switch.
All the turn signal lights will flash. To turn them off, push the switch once
again.
Turn on the emergency flashers to warn other drivers if ...
Front fog lights
To turn on the front fog lights, twist the band of the headlight and turn
signal switch lever. They will come on when the head lights are on low beam.
...
See also:
Installing snow tires and chains
WHEN TO USE SNOW TIRES OR CHAINS
Snow tires or chains are recommended when driving on snow or ice.
On wet or dry roads, conventional tires provide better traction than snow tires.
SNOW TIRE SEL ...
Winter driving tips
Make sure you have a proper freeze protection for engine coolant.
Only use “Toyota Super Long Life Coolant” or similar high quality ethylene glycol
based non-silicate, non-amine, non-nitrite, ...
Light bulbs
You may replace the following bulbs by yourself. The difficulty level of replacement
varies depending on the bulb. If necessary bulb replacement seems difficult to perform,
contact your Toyota dea ...