2017 TOYOTA SIENNA ambient

SIENNA_OM_OM08007U_(U)
2454-3. Operating the lights and wipers
4
Driving
■Daytime running light system (if equipped)
●Bulb type: To make your vehicle more visible to other drivers during daytime
driving, the daytime running lights turn on automatically whenever the
engine is started and the parking brake is released with the headlight switch
off or in the “AUTO” position. (illuminate dimmer than the headlights) Day-
time running lights are not designed for use at night.
For the U.S.A.: Daytime running lights can be turned off by operating the
headlight switch.
LED type: To make your vehicle more visible to other drivers during daytime
driving, the daytime running lights turn on automatically whenever the
engine is started and the parking brake is released with the headlight
switch off. Daytime running lights are not designed for use at night.
For the U.S.A.: Daytime running lights can be turned off by operating the
headlight switch.
● Compared to turning on the headlights, the daytime running light system
offers greater durability and consumes less electricity, so it can help improve
fuel economy.
■ Headlight control sensor
The sensor may not function properly if an
object is placed on the sensor, or anything
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.

4186-1. Using the air conditioning system and defogger
SIENNA_OM_OM08007U_(U)
■Using automatic mode
Fan speed is adjusted automatically according to the temperature setting and
the ambient conditions.
Therefore, the fan may stop for a while until warm or cool air is ready to flow
immediately after the “AUTO” button is pressed.
■ When the outside temperature exceeds 75°F (24°C) and the air condition-
ing system is on
●In order to reduce the air conditioning power consumption, the air condition-
ing system may switch to recirculated air mode automatically.
This may also reduce fuel consumption.
● Recirculated air mode is selected as a default mode when the engine switch
is turned to the “ON” position (vehicles without a smart key system) or
IGNITION ON mode (vehicles with a smart key system).
● It is possible to switch to outside air mode at any time by pressing .
■ Fogging up of the windows
●The windows will easily fog up when the humidity in the vehicle is high.
Pressing “A/C” button on will dehumidify the air from the outlets and defog
the windshield effectively.
● If you turn “A/C” off, the windows may fog up more easily.
● The windows may fog up if the recirculated air mode is used.
■ Outside/recirculated air mode
●When driving on dusty roads such as tunnels or in heavy traffic, set
to the recirculated air mode. This is effective in preventing outside air from
entering the vehicle interior. During cooling operation, setting the recircu-
lated air mode will also cool the vehicle interior effectively.
● Outside/recirculated air mode may automatically switch depending on the
temperature setting or the inside temperature.

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SIENNA_OM_OM08007U_(U)
9-2. Customization
■Illumination (P. 427)
*: If equipped
■
Seat belt reminder ( P. 547)
FunctionDefault settingCustomized
setting
Time elapsed before the
interior lights turn off 15 secondsOff
O–O
7.5 seconds
30 seconds
Operation after the engine
switch is turned to the
“LOCK” position (vehicles
without a smart key sys-
tem) or off (vehicles with a
smart key system) On Off – – O
Operation when the doors
are unlocked On Off – – O
Operation when you
approach the vehicle with
the electronic key on your
person
*
On Off – – O
Ambient lights
*On Off – – O
Time elapsed before the
outer foot lights turn off
*15 seconds Off
O–O
7.5 seconds
30 seconds
Operation of the outer foot
lights when you approach
the vehicle with the elec-
tronic key on your person
*
On Off – – O
Operation of the outer foot
lights when the doors are
unlocked
*
On Off – – O
123
FunctionDefault settingCustomized
setting
Vehicle speed linked seat
belt reminder buzzer On Off – – O
123