Toyota Prius Owner's Manual page 270

2-3. Operating the lights and windshield wipers

Guide to dial settings
Occupancy and luggage load conditions
Occupants
Driver and front
passenger
All seats occupied
All seats occupied

Daytime running light system (if equipped)
To make your vehicle more visible to other drivers, the daytime running lights
turn on automatically whenever the hybrid system is started and the parking
brake is released.

Headlight control sensor (if equipped)
270
PRIUS_OM_OM47A19E_(EE)
Driver
Full luggage loading
Driver Full luggage loading
The sensor may not function properly if
an object is placed on the sensor, or any-
thing that blocks the sensor is affixed to
the windshield.
Doing so interferes with the sensor
detecting the level of ambient light and
may cause the automatic headlight sys-
tem to malfunction.
Air conditioning operation may also be
interrupted.
Luggage load
None
None
None
Dial position
0
0
2
2.5
4.5