2012 Lexus CT200h heating

327
3-1. Using the air conditioning system and defogger
3
Interior features
CT200h_OM_OM76067E_(EE)
Window defogger feature
Recirculated air mode may automatically switch to (outside air)
mode in situations where the windows need to be defogged.
Pollen removal mode
In order to prevent the windshield from fogging up when the outside air
is cold, the following may occur:
• Outside air mode does not switch to (recirculated air) mode.
• The air conditioning system operates automatically.
• The operation cancels after 1 minute.
In rainy weather, the windows may fog up. Press .
When outside air temperature is below 0 C (32 F)
The cooling and dehumidification function may not operate even when
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. 667)

464
3-7. Other interior features
CT200h_OM_OM76067E_(EE)
CAUTION
Burns
Care should be taken to prevent injury if anyone in the following catego-
ries comes in contact with the steering wheel when the heated steering
wheel is on:
• Babies, small children, the elderly, the sick and the physically chal-
lenged
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping
drugs, cold remedies, etc.)
Do not use the heated steering wheel more than necessary. Doing so may
cause minor burns or overheating.
NOTICE
To prevent 12-volt battery discharge
Turn the heater off when the hybrid system is off.

466
3-7. Other interior features
CT200h_OM_OM76067E_(EE)
CAUTION
Burns
Use caution when seating the following persons in a seat with the seat
heater on to avoid the possibility of burns:
• Babies, small children, the elderly, the sick and the physically chal-
lenged
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping
drugs, cold remedies, etc.)
Do not cover the seat with anything when using the seat heater.
Using the seat heater with a blanket or cushion increases the temperature
of the seat and may lead to overheating.
Do not use the seat heater more than necessary. Doing so may cause minor
burns or overheating.
NOTICE
To prevent seat heater damage
Do not put heavy objects that have an uneven surface on the seat and do not
stick sharp objects (needles, nails, etc.) into the seat.
To prevent 12-volt battery discharge
Turn the seat heaters off when the hybrid system is off.

5
589
5-2. Steps to take in an emergency
When trouble arises
CT200h_OM_OM76067E_(EE)
Follow the correction procedures.
A warning message is shown on the multi-information display.
After taking the specified steps to correct the suspected problem,
check that the warning message goes off.
Warning messageDetailsCorrection procedure
Indicates that the
washer fluid level is
low
Add washer fluid.
(If equipped)
Indicates that the
pre-crash safety system
is not currently func-
tional because the grille
or the sensor is dirty
This message also
appears when the pre-
crash safety system is
not functional due to
overheating.
• Check the grille and
the sensor and clean
them if they are dirty.
• In case of overheat-
ing, the system will
become functional
once the system cools
down.

5
639
5-2. Steps to take in an emergency
When trouble arises
CT200h_OM_OM76067E_(EE)
If your vehicle overheats
Correction procedures
If the high coolant temperature warning light comes on or
flashes
Stop the vehicle in a safe place and turn off the air condi-
tioning system, and then stop the hybrid system.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the hybrid system has
cooled down sufficiently,
inspect the hoses and radiator
core (radiator) for any leaks.
Radiator
Cooling fan
If a large amount of coolant
leaks, immediately contact any
authorized Lexus dealer or
repairer, or another duly quali-
fied and equipped professional.
The following may indicate that your vehicle is overheating:
The high coolant temperature warning light (P. 572) comes
on or flashes, or a loss of hybrid system power is experienced.
(For example, the vehicle speed does not increase.)
“HYBRID SYSTEM OVERHEAT” (P. 586) is shown on
the multi-information display.
Steam comes out from under the hood.
STEP1
STEP2
STEP3

682
6-2. Customization
CT200h_OM_OM76067E_(EE)
Automatic
air condi-
tioning
system
(P. 318)
Efficient ven-
tilation mode
(Switching
between out-
side air and
recirculated air
mode linked to
“AUTO”
switch opera-
tion)*
4
OnOffO––O
AUTO A/C
MODE
(Enable/dis-
able auto-
matic
operation of
the air condi-
tioning com-
pressor when
the “AUTO”
switch ON)
OffOnO–OO
Heating/cool-
ing operation
minimized in
Eco drive
mode
OnOff–––O
ItemFunctionDefault
settingCustomized
setting

694
Alphabetical index
CT200h_OM_OM76067E_(EE)
Child safety
Airbag precautions................158
Back door precautions ............95
Child restraint system ...........166
Child-protectors ......................90
How your child should wear
the seat belt.........................111
Installing child restraints ......176
Moon roof precautions .........130
Power window lock switch...124
Power window precautions...126
Removed electronic key battery
precautions .........................531
Seat belt precautions .............112
Seat heater precautions .........466
12-volt battery precautions ...512
Child-protectors...........................90
Cleaning
Exterior .................................476
Interior ..................................482
Seat belts...............................483
Clock
*.......................................459
Condenser ..................................506
Console box ...............................450
Cooling system
Engine overheating ...............639
Hybrid system overheating ...639
Cruise control
Cruise control .......................250
Dynamic radar cruise control .....
255
Cup holders ...............................451Curtain shield airbags ............... 151
Customizable features .............. 667
Daytime running light system .. 237
Defogger
Rear window ........................ 330
Side mirrors ......................... 330
Dimensions ............................... 650
Display
Dynamic radar cruise
control ............................... 255
Multi-information display.... 229
Trip information .................. 231
Warning message................. 578
Do-it-yourself maintenance ...... 488
Door lock
Back door............................... 93
Side doors .............................. 89
Smart entry & start system .... 62
Wireless remote control ......... 84
Doors
Back door............................... 93
Door glasses......................... 123
Door lock ................... 62, 84, 89
Rear door child protector ....... 90
Side doors .............................. 89
Driver’s seat belt reminder light575
Driver’s seat position memory . 102
Driving
Break-in tips ........................ 188
Correct posture .................... 149
Procedures ........................... 186
Winter driving tips ............... 311
Driving position memory ......... 102
D

695
Alphabetical index
CT200h_OM_OM76067E_(EE)
Electric power steering ..............291
Electronic key
If the electronic key does not
operate properly .................630
Replacing battery ..................527
Emergency, in case of
If a warning buzzer sounds ...571
If a warning light turns on ....571
If a warning message is
displayed ............................578
If the electronic key does not
operate properly .................630
If the hybrid system will not
start .....................................627
If the 12-volt battery is
discharged ..........................633
If you have a flat tire ...599, 613
If you lose your keys ............629
If you think something is
wrong .................................570
If your vehicle becomes stuck ....
644
If your vehicle has to be stopped
in an emergency .................646
If your vehicle needs to be
towed ..................................563
If your vehicle overheats ......639
Emergency brake signal ............292
Emergency flashers ...................562Engine
Accessory mode................... 200
Compartment ....................... 496
Hood .................................... 492
How to start the hybrid
system................................ 198
Identification number .......... 651
If the hybrid system will not
start .................................... 627
Ignition switch ..................... 198
Overheating ......................... 639
“POWER” switch ................ 198
Engine compartment cover....... 497
Engine coolant
Capacity ............................... 657
Checking .............................. 503
Preparing and checking
before winter ..................... 311
Engine/power control unit coolant
Capacity ............................... 657
Checking .............................. 503
Preparing and checking
before winter ..................... 311E
*: For vehicles with a navigation system, refer to
the “Navigation System Owner’s Manual”.