Temperature Lexus CT200h 2013 (in English) Service Manual

4546-1. Using the air conditioning system and defogger
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Switching between outside air and recirculated air modes
Press .
The mode switches between (recirculated air mode) and (out-
side air mode) modes each time the button is pressed.
Defogging the windshield
Defoggers are used to defog the windshield and front side windows.
Press .
Set to outside air mode if the recirculated air mode is used.
(It may switch automatically.)
To defog the windshield and the side windows early, turn the air flow and
temperature up.
To return to the previous mode, press again when the windshield is
defogged.
Defogging the rear window and outside rear view mirrors
Defoggers are used to defog the rear window and to remove raindrops,
dew and frost from the outside rear view mirrors.
Press .
The defoggers will automatically turn off after a period of time.
Pollen removal mode
Pollen is removed from the air and the air flows to the upper part of the
body.
Press .
In order to prevent the windshield from fogging up when the outside air is
cold, the dehumidification function may operate.
The pollens are filtered out even if the pollen removal mode is turned off.
Other functions

4566-1. Using the air conditioning system and defogger
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Registering air conditioning settings to electronic keys (vehicles with a smart
entry & start system)
Unlocking the vehicle using an electronic key and turning the power switch to
ON mode will recall that key’s registered air conditioning settings.
When the power switch is turned off, the current air conditioning settings will
automatically be registered to the electronic key that was used to unlock the
vehicle.
The system may not operate correctly if more than one electronic key is in the
vicinity or if the smart entry & start system is used to unlock a passenger door.
Settings for the electronic key and the corresponding door can be changed.
Contact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
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.
Fogging up of the windows
The windows will easily fog up when the humidity in the vehicle is high. Press-
ing “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.
Windshield fog detection function (if equipped)
When automatic mode is set, the humidity sensor (P. 458) detects fog on the
windshield and controls the air conditioning system to prevent fog.
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 out-
side 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 tem-
perature setting or the inside temperature.

4576-1. Using the air conditioning system and defogger
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6
Interior features
When the outside temperature is low
The dehumidification function may not operate even when “A/C” is pressed.
Operation of the air conditioning system in Eco drive mode
In the Eco drive mode, the air conditioning system is controlled as follows to
prioritize fuel efficiency
• Engine speed and compressor operation controlled to restrict heating/cooling
capacity
• Fan speed restricted when automatic mode is selected
To improve air conditioning performance, perform the following operations
• Adjust the fan speed
• Turn off Eco drive mode
• Customize the air conditioning control of Eco drive mode. (P. 658)
Ventilation and air conditioning odors
To let fresh air in, set the air conditioning system to the outside air mode.
During use, various odors from inside and outside the vehicle may enter into
and accumulate in the air conditioning system. This may then cause odor to be
emitted from the vents.
To reduce potential odors from occurring:
• It is recommended that the air conditioning system be set to outside air mode
prior to turning the vehicle off.
• The start timing of the blower may be delayed for a short period of time
immediately after the air conditioning system is started in automatic mode.
Air conditioning filter
P. 527
Customization
Settings (e.g. A/C automatic mode switch operation) can be changed.
(Customizable features: P. 650)

4586-1. Using the air conditioning system and defogger
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WA R N I N G
To prevent the windshield from fogging up
Do not use during cool air operation in extremely humid weather. The
difference 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.
To prevent burns
Do not touch the rear view mirror surfaces when the outside rear view mirror
defoggers are on.
Do not touch the glass at lower part of the windshield or to the side of the
front pillars when the windshield wiper de-icer is on. (vehicles with wind-
shield wiper de-icer)
NOTICE
Humidity sensor (if equipped)
To prevent 12-volt battery discharge
Do not leave the air conditioning system on longer than necessary when the
hybrid system is off.
Do not place anything on the instrument
panel which may cover the air outlets.
Otherwise, air flow may be obstructed,
preventing the windshield defoggers from
defogging.
In order to detect fog on the windshield, a
sensor which monitors the temperature of
the windshield, the surround humidity, etc.
is installed. (P. 456)
Follow these points to avoid damaging the
sensor:
Do not disassemble the sensor
Do not spray the glass cleaner on the sen-
sor or subject it to strong impacts
Do not stick anything on the sensor

4606-1. Using the air conditioning system and defogger
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Turns the heated steering wheel on/
off
The indicator light comes on when
the heated steering wheel is operat-
ing.
The heated steering wheel can be used when the power switch is in ON mode.
The heated steering wheel will automatically turn off after about 30 minutes.
Pops the knob out
Turns the seat heater on
The indicator light comes on.
Adjusts the seat temperature
The further you turn the knob clock-
wise, the warmer the seat becomes.
The seat heaters can be used when the power switch is in ON mode.
When not in use, turn the knob fully counterclockwise. The indicator light goes
off. Press the knob into the recessed position.
Heated steering wheel
Seat heaters
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4646-3. Using the storage features
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List of storage features
Auxiliary boxes (P. 468)
Glove box (P. 465)
Bottle holders/door pockets
(P. 466)Console box (P. 465)
Cup holders (P. 466)1
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3
4
5
WA R N I N G
Do not leave glasses, lighters or spray cans in the storage spaces, as this may
cause the following when cabin temperature becomes high:
• Glasses may be deformed by heat or cracked if they come into contact with
other stored items.
• Lighters or spray cans may explode. If they come into contact with other
stored items, the lighter may catch fire or the spray can may release gas,
causing a fire hazard.
When driving or when the storage compartments are not in use, keep the lids
closed.
In the event of sudden braking or sudden swerving, an accident may occur
due to an occupant being struck by an open lid or the items stored inside.

4807-1. Maintenance and care
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Cleaning and protecting the vehicle exterior
Working from top to bottom, liberally apply water to the vehicle body,
wheel wells and underside of the vehicle to remove any dirt and dust.
Wash the vehicle body using a sponge or soft cloth, such as a chamois.
For hard-to-remove marks, use car wash soap and rinse thoroughly
with water.
Wipe away any water.
Wax the vehicle when the waterproof coating deteriorates.
If water does not bead on a clean surface, apply wax when the vehicle body is
cool.
Self-restoring coat
The vehicle body has a self-restoring coating that is resistant to small surface
scratches caused in a car wash etc.
The coating lasts for 5 to 8 years after the coating has been performed.
The restoration time differs depending on the depth of the scratch and outside
temperature. The restoration time may become shorter when the coating is
warmed by applying warm water.
Deep scratches caused by keys or coins cannot be restored.
Do not use wax that contain abrasives.
Automatic car washes
Fold the mirrors before washing the vehicle. Start washing from the front of the
vehicle. Make sure to extend the mirrors before driving.
Brushes used in automatic car washes may scratch the vehicle surface and harm
your vehicle’s paint.
Rear spoiler may not be washable in some automatic car washes. There may
also be an increased risk of damage to vehicle.
High pressure car washes
Do not allow the nozzles of the car wash to come within close proximity of the
windows.
Before using the car wash, check that the fuel filler door on your vehicle is
closed properly.
Perform the following to protect the vehicle and maintain it in prime con-
dition:

4887-2. Maintenance
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Where to go for maintenance service?
In order to maintain your vehicle in the best possible condition, Lexus recom-
mends that maintenance service operations as well as other inspections and
repairs be carried out by authorized Lexus dealers or repairers or other duly qual-
ified and equipped professionals. For repairs and services covered by your war-
ranty, please visit an authorized Lexus dealer or repairer, who will use genuine
Lexus parts in repairing any difficulties you may encounter. There can also be
advantages in utilizing authorized Lexus dealers or repairers for non-warranty
repairs and services, as members of the Lexus network will be able to expertly
assist you with any difficulties you may encounter.
Your Lexus dealer or repairer, or another duly qualified and equipped profes-
sional will perform all of the scheduled maintenance on your vehicle reliably and
economically due to their experience with Lexus vehicles.
Does your vehicle need repairs?
Be on the alert for changes in performance and sounds, and visual tip-offs that
indicate service is needed. Some important clues are:
Engine missing, stumbling or pinging
Appreciable loss of power
Strange engine noises
A fluid leak under the vehicle (However, water dripping from the air condition-
ing system after use is normal.)
Change in exhaust sound (This may indicate a dangerous carbon monoxide
leak. Drive with the windows open and have the exhaust system checked imme-
diately.)
Flat-looking tires, excessive tire squeal when cornering, uneven tire wear
Vehicle pulls to one side when driven straight on a level road
Strange noises related to suspension movement
Loss of brake effectiveness, spongy feeling brake pedal, pedal almost touches
the floor, vehicle pulls to one side when braking
Engine coolant temperature continually higher than normal (P. 570, 583)
If you notice any of these clues, take your vehicle to any authorized Lexus dealer
or repairer, or another duly qualified and equipped professional as soon as possi-
ble. Your vehicle may need adjustment or repair.

4917-3. Do-it-yourself maintenance
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7
Maintenance and care
WA R N I N G
The engine compartment contains many mechanisms and fluids that may move
suddenly, become hot, or become electrically energized. To avoid death or seri-
ous injury, observe the following precautions.
When working on the engine compartment
Make sure that the indicator on the power switch and the “READY” indicator
are both off.
Keep hands, clothing and tools away from the moving fan.
Be careful not to touch the engine, power control unit, radiator, exhaust mani-
fold, etc. right after driving as they may be hot. Oil and other fluids may also
be hot.
Do not leave anything that may burn easily, such as paper and rags, in the
engine compartment.
Do not smoke, cause sparks or expose an open flame to fuel. Fuel fumes are
flammable.
Take care because brake fluid can harm your hands or eyes and damage
painted surfaces. If fluid gets on your hands or in your eyes, flush the affected
area with clean water immediately. If you still experience discomfort, consult
a doctor.
When working near the electric cooling fans or radiator grille
Be sure the power switch is off.
With the power switch in ON mode, the electric cooling fans may automati-
cally start to run if the air conditioning is on and/or the coolant temperature is
high. (P. 502)
Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from
getting in your eyes.
NOTICE
If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear
due to dirt in the air.
If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads wear
or when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, it may indicate a serious problem.

4977-3. Do-it-yourself maintenance
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7
Maintenance and care
With the engine at operating temperature and turned off, check the oil
level on the dipstick.
Checking the engine oil
Park the vehicle on level ground. After warming up the engine and
turning off the hybrid system, wait more than 5 minutes for the oil to
drain back into the bottom of the engine.
Holding a rag under the end,
pull the dipstick out.
Wipe the dipstick clean.
Flat dipstick: Reinsert the dipstick fully.
Non-flat dipstick: Reinsert the
dipstick fully with its protrud-
ing areas ( in the illustra-
tion) pointing towards engine.
Engine oil
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