instrument panel Lexus IS F 2008 Navigation Manual

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OTHER FUNCTIONS
180
D
Changing between day mode and
night mode
Depending on the position of the headlight
switch, the screen changes to the day
mode or night mode.
To display the screen in the day mode even
with the headlight switch on, touch “Day
Mode” on the adjustment screen for
brightness and contrast control.
However, if the instrument panel light con-
trol switch is turned fully to the right, mode
switching cannot be done. It remains in the
day mode. In this case, “Day Mode”is not
shown on the screen.
If the screen is set in the day mode with the
headlight switch turned to on, this condi-
tion is memorized in the system even with
the engine turned off.
1. Push the “INFO” button.
2. Touch “Screen Setting”.
IS F/350/250_Navi_U
(L/O 0712)
Screen setting

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AIR CONDITIONING
257
SETTING OPERATION — manual con-
trol
When one of the manual control touch−
screen buttons is depressed while operat-
ing in automatic mode, the operation cor-
responding to the depressed button is set.
Other conditions continue to be adjusted
automatically.
If manual air flow selection is desired —
The outlets from which air is delivered can
be selected manually by touching the
touch− screen button. The function of each
mode is as follows:
1 Panel — Air flows mainly from the
instrument panel vents and rear
vents.
2Bi −level — Air flows from both the
floor vents, instrument panel vents
and rear vents.
When you set the temperature selec-
tor setting at about the middle in auto-
matic operation, warm air flows out of
the floor vents and relatively low −
temperature air flows out of the in-
strument panel vents and rear vents.
3 Floor — Air flows mainly from the
floor vents and rear vents.
4 Floor/windshield — Air flows mainly
from the floor vents, windshield vents
and rear vents.
Take in the fresh air with selecting the
OUTSIDE AIR mode by the air intake con-
trol button.
The selected mode is highlighted. If manual fan speed control is desired
—
"1Fan speed at low
2Fan speed at high
The fan speed can be set to your desired
speed by touching the appropriate air flow
control button.
The higher the fan speed is, the more air is
delivered.
Pushing the “OFF”button turns the fan off.
To remove the exterior windshield frost
and interior windshield fog, use the high
speed setting.
The selected mode is highlighted.
IS F/350/250_Navi_U
(L/O 0712)

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AIR CONDITIONING
262
(d) Micro dust and pollen filter
This vehicle is equipped with a micro
dust and pollen filter mode. When this
mode is activated, air from the vents
will remove pollen on the driver and
passengers.
Push the micro dust and pollen filter
button.
The indicator light and“A/C”come on.
The RECIRCULATED AIR mode is also
turned on at normal outside temperature.
Air is delivered from the instrument panel
vents to the areas near the driver and pas-
sengers to remove pollen on them.
When the interior is purified sufficiently
with fresh air (after about 3 minutes at nor-
mal outside temperature and about 1 min-
ute at low outside temperature), this mode
will be turned off automatically and the indi-
cator light will go out.
When the micro dust and pollen filter is ac-
tivated, this mode will be turned off by
pushing the micro dust and pollen filter but-
ton again. The indicator light will also go
out.
INFORMATION
D Use this mode to remove pollen
quickly carried by the driver or
passengers or through the window
in the days with much pollen.
D Use and push the windshield air
flow button to remove the fog on
the windshield in rainy days.
D Fresh air is delivered even when
the micro dust and pollen filter but-
ton is turned off.
IS F/350/250_Navi_U
(L/O 0712)

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APPENDIX
294
This navigation system calculates the
current vehicle position using satellite
signals, various vehicle signals, map
data, etc. However, the accurate posi-
tion may not be shown depending on
the satellite condition, road configura-
tion, vehicle condition or other circum-
stances.
The Global Positioning System (GPS) de-
veloped and operated by the U.S. Depart-
ment of Defense provides an accurate cur-
rent vehicle position, normally using 4 or
more satellites, and in some cases 3 satel-
lites. The GPS system has a certain level
of inaccuracy. While the navigation sys-
tem will compensate for this most of the
time, occasional positioning errors of up to
300 feet (100 m) can and should be expec-
ted. Generally, position errors will be cor-
rected within a few seconds.
When your vehicle is receiving signals
from the satellites, the “GPS” mark ap-
pears at the top left of the screen.
The GPS signal may be physically ob-
structed, leading to inaccurate vehicle
position on the map display. Tunnels, tall
buildings, trucks, or even the placement of
objects on the instrument panel may ob-
struct the GPS signals.
The GPS satellites may not send signals
due to repairs or improvements being
made to them.
Even when the navigation system is re-
ceiving clear GPS signals, the vehicle
position may not be shown accurately or
inappropriate route guidance may occur in
some cases.
NOTICE
The installation of window tinting
may obstruct the GPS signals. Most
window tinting contains some metal-
lic content that will interfere with GPS
signal reception of the antenna in the
instrument panel. We advise against
the use of window tinting on vehicles
equipped with navigation systems.
IS F/350/250_Navi_U
(L/O 0712)
Limitations of the
navigation system