2012 Lexus CT200h sensor

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Introduction
This manual explains the operation of the Navigation System. Please read this
manual carefully to ensure proper use. Keep this manual in your vehicle at all
times.
The screen shots in this document and the actual screens of the navigation sys-
tem differ depending on whether the functions and/or a contract existed and the
map data available at the time of producing this document.
The Navigation System is one of the most technologically advanced vehicle ac-
cessories ever developed. The system receives satellite signals from the Global
Positioning System (GPS) operated by the U.S. Department of Defense. Using
these signals and other vehicle sensors, the system indicates your present posi-
tion and assists in locating a desired destination.
The navigation system is designed to select efficient routes from your present
starting location to your destination. The system is also designed to direct you
to a destination that is unfamiliar to you in an efficient manner. Map database
is made based on AISIN AW maps, whose information source comes from
NAVTEQ maps. The calculated routes may not be the shortest nor the least
traffic congested. Your own personal local knowledge or “short cut” may at
times be faster than the calculated routes.
The navigation system’s database includes Point of Interest categories to allow
you to easily select destinations such as restaurants and hotels. If a destination
is not in the database, you can enter the street address or a major intersection
close to it and the system will guide you there.
The system will provide both a visual map and audio instructions. The audio
instructions will announce the distance remaining and the direction to turn
when approaching an intersection. These voice instructions will help you keep
your eyes on the road and are timed to provide enough time to allow you to ma-
neuver, change lanes or slow down.
NAVIGATION SYSTEM OWNER’S MANUAL
NAVIGATION SYSTEM

317
1. AIR CONDITIONING SYSTEM OPERATION
6
AIR CONDITIONING
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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 “AUTO” is pressed.
The windows will easily fog up when
the humidity in the vehicle is high.
Selecting “A/C” on will dehumidify the
air from the outlets and defog the wind-
shield effectively.
If “A/C” is switched off, the windows
may fog up more easily.
The windows may fog up if the recircu-
lated air mode is used.When automatic mode is set, the
humidity sensor (see page 319) detects
fog on the windshield and controls the
air conditioning system to prevent fog.
When driving on dusty roads such as
tunnels or in heavy traffic, set the out-
side/recirculated air mode button to the
recirculated air mode. This is effective
in preventing outside air from entering
the vehicle interior. During cooling
operation, setting the recirculated air
mode will also cool the vehicle interior
effectively.
Outside/recirculated air mode may
automatically switch depending on the
temperature setting or the inside tem-
perature.
USING AUTOMATIC MODE
FOGGING UP OF THE
WINDOWS
CAUTION
To prevent the windshield from fog-
ging up
• Do not use the windshield air flow
button during cool air operation in
extremely humid weather. The dif-
ference between the temperature of
the outside air and that of the wind-
shield can cause the outer surface of
the windshield to fog up, blocking
your vision.
WINDSHIELD FOG
DETECTION FUNCTION
OUTSIDE/RECIRCULATED
AIR MODE

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1. AIR CONDITIONING SYSTEM OPERATION
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AIR CONDITIONING
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HUMIDITY SENSOR
NOTICE
In order to detect fog on the wind-
shield, a sensor which monitors the
temperature of the windshield, the
surround humidity, etc. is installed.
(See page 317.)
Follow these points to avoid damag-
ing the sensor:
• Do not disassemble the sensor
• Do not spray the glass cleaner on the
sensor or subject it to strong impacts
• Do not stick anything on the sensor

370
1. LEXUS PARKING ASSIST MONITOR
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The parking assist monitor displays the last-used parking mode first.
Perpendicular parkingParallel parking
SCREEN DISPLAY
The parking assist monitor screen will be displayed if the shift lever is shifted
to the “R” position while the “POWER” switch is in ON mode.
No.DisplayFunction
Display mode switch screen
buttonSwitches the display mode.
Parking mode switch screen
buttonSwitches the parking mode (between perpen-
dicular parking and parallel parking assist
screens)
Narrow mode screen on-off
buttonSwitch the narrow mode on and off. (See page
374.)
Lexus parking assist-sensor
If an obstacle is detected while the Lexus
parking assist-sensor is on, a display is shown
in the top right corner of the screen.

386
1. LEXUS PARKING ASSIST MONITOR
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1Select .
If the Lexus parking assist-sensor
detects an object while you attempt to
park in a parking space on the left, the
black and yellow vertical pole could be
obscured by the Lexus parking assist-
sensor display. In this event, turn the
Lexus parking assist-sensor switch off
(For details, refer to “Owner’s Man-
ual”.), and operate the vehicle while
checking the safety of the surrounding
area direct visually and with mirror.
After the operation, turn the switch on.
The steering wheel has been turned too
far, and the system cannot function.
Return the steering wheel to its original
position.
If the message is displayed before the
outline is positioned over the desired
parking space, it is likely that the vehi-
cle is too far away from the shoulder.
Check that there is a gap of approxi-
mately 1 m (3 ft.) between your vehicle
and the parked vehicle.
Normal mode
Narrow mode
If the “POWER” switch is turned off
when the parking assist monitor is can-
celed with narrow mode, the caution
screen is displayed first when the paral-
lel parking assist is selected next time.
CANCELING PARALLEL
PARKING ASSIST
VEHICLES EQUIPPED WITH
LEXUS PARKING ASSIST-
SENSOR
IF THE MESSAGE “Steering
wheel turned too far, please
return.” IS DISPLAYED
NARROW MODE
If the position the vehicle is to be
parked in is narrower than usual, nar-
row mode can be used.

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1. LEXUS PARKING ASSIST MONITOR
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A vertical white streak is on
the screenWhen a bright spot (such as
sunlight reflecting off the
body of another vehicle) is
received by the camera, a
vertical streak may be left
above and below the bright
spot (smear effect).Back up while visually
checking the vehicle’s sur-
roundings. (Use the moni-
tor again once conditions
have been improved.)
The image is out of align-
mentThe camera or surrounding
area has received a strong
impact.Have the vehicle inspected
by any authorized Lexus
dealer or repairer, or anoth-
er duly qualified and
equipped professional.
The guide lines are very far
out of alignmentThe camera position is out
of alignment.Have the vehicle inspected
by any authorized Lexus
dealer or repairer, or anoth-
er duly qualified and
equipped professional.
The estimated course lines
move even though the
steering wheel is straightThere is a malfunction in
the signals being output by
the steering sensor.Have the vehicle inspected
by any authorized Lexus
dealer or repairer, or anoth-
er duly qualified and
equipped professional.
Guide lines are not dis-
playedThe back door is open.Close the back door.
If this does not resolve the
symptom, have the vehicle
inspected by any autho-
rized Lexus dealer or re-
pairer, or another duly
qualified and equipped pro-
fessional.
SymptomLikely causeSolution
Bright

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1. LEXUS PARKING ASSIST MONITOR
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PERIPHERAL MONITORING SYSTEM
“System initializing.” is
displayedThe 12-volt battery has
been reinstalled.
The steering wheel has
been moved while the
12-volt battery was being
reinstalled.
12-volt battery power is
low.
The steering sensor has
been reinstalled.
There is a malfunction in
the signals being output
by the steering sensor.Stop the vehicle, and turn
the steering wheel as far as
it will go to the left and
right.
If this does not resolve the
symptom, have the vehicle
inspected by any autho-
rized Lexus dealer or re-
pairer, or another duly
qualified and equipped pro-
fessional.
On the system initializa-
tion screen, select the “?”
to display the operating
procedure.
SymptomLikely causeSolution