heating LEXUS RC200T 2017 User Guide

4876-1. Using the air conditioning system
6
Interior features
RC200t_RC F_EE(OM24728E)
■Registering air conditioning settings to electronic keys
●Unlocking the vehicle using an electronic ke y and turning the engine switch to IGNI-
TION ON mode will recall that key's re gistered air conditioning settings.
●When the engine switch is turned off, the current air conditioning settings will automat-
ically 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.
●The doors that can recall the air conditioning setting* when unlocked using the smart
entry & start system can be changed. For details, contact any authorized Lexus dealer
or repairer, or another duly qu alified and equipped professional.
*: The doors that can recall the driving position memory are changed at the same time.
■Using automatic mode
Fan speed is adjusted automatically according to the temperature setting and the ambi-
ent conditions.
Therefore, the fan may stop for a while until wa rm or cool air is ready to flow immediately
after is pressed or “AUTO” is selected.
■Fogging up of the windows
The windows will easily fog up when the hu midity in the vehicle is high. Turning
(“A/C”) on will dehumidify the air from the ou tlets 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 the outside/recircu-
lated air mode button 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 automati cally switch depending on the tempera-
ture setting or the inside temperature.
■Automatic mode for air intake control
In automatic mode, the system detects exhaust gas and other pollutants and automati-
cally switches between outside air and recirculated air modes.
When the dehumidification function is off, and the fan is operating, turning automatic
mode on will activate the dehumidification function.
■Operation of the air conditioning system in Eco drive mode
In 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 capac-
ity
●Fan speed restricted when automatic mode is selected
To improve air conditioning performanc e, perform the following operations:
●Adjust the fan speed
●Turn off Eco drive mode

4906-1. Using the air conditioning system
RC200t_RC F_EE(OM24728E)
Turn the heated steering wheel on/off
The indicator light comes on when the
heated steering wheel is operating.
Heated steering wheel/seat heaters/seat ventila-
tors
: If equipped
Heated steering wheel and seat heaters heat the side grips of the steering
wheel and seats, respectively. Seat ventilators maintain good airflow by blow-
ing air from the seats.
WARNING
●Care should be taken to prevent injury if anyone in the following categories comes in contact with the steering wheel and seats when the heater is on:
• Babies, small children, the elderly, the sick and the physically challenged
• Persons with sensitive skin • Persons who are fatigued• Persons who have taken alcohol or drugs that induce sleep (sleeping drugs, cold
remedies, etc.)
●Observe the following precautions to prevent minor burns or overheating,
• Do not cover the seat with a blanket or cushion when using the seat heater. • Do not use seat heater more than necessary.
NOTICE
●Do not put heavy objects that have an uneven surface on the seat and do not sticksharp objects (needles, na ils, etc.) into the seat.
●To prevent battery discharge, do not use the functions when the engine is off.
Heated steering wheel

6598-2. Steps to take in an emergency
8
When trouble arises
RC200t_RC F_EE(OM24728E)
●The engine coolant temperature gauge (P. 118, 124) is in the red zone or a
loss of engine power is experienced. (F or example, the vehicle speed does not
increase.)
●“Engine Coolant High Temperature” is shown on the multi-information dis-
play.
●Steam comes out from under the hood.
Stop the vehicle in a safe place and turn off the air conditioning system, and
then stop the engine.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the engine has cooled down sufficiently, inspect the hoses and radiator
core (radiator) for any leaks.
Radiator
Cooling fans
If a large amount of coolant leaks, immediately contact any authorized Lexus dealer or repairer, or another duly qualified and equipped professional.
If your vehicle overheats
The following may indicate that your vehicle is overheating.
Correction procedures
1
2
3
1
2
RC200tRC F

707Alphabetical index
RC200t_RC F_EE(OM24728E)
Moon roof precautions .................. 234
Power window lock switch............227
Power window precautions .........230
Removed electronic key
battery precautions ...................... 565
Seat belt precautions .......................... 48
Seat heater precautions ................ 490
Trunk precautions .............................. 173
Cleaning .......................................... 506, 511
Aluminum wheels ..............................507
Exterior................................................... 506
Interior ........................................................ 511
Seat belts..................................................512
Clock .......................................................... 501
Coat hooks ..............................................504
Condenser ............................................. 529
Console box ........................................... 496
Cooling system ...................................... 527
Engine overheating ......................... 659
Cruise control
Cruise control ..................................... 294
Dynamic radar cruise control .....298
Cup holders ............................................ 497
Current fuel consumption.......... 134, 141
Curtain shield airbags ........................... 49
Customizable features .......................686
DAB (Digital Audio Broadcast) .......415
Daytime running light system ......... 265
Defogger
Outside rear view mirrors ............ 484
Rear window........................................ 484
Windshield ........................................... 484
Differential............................................... 678
Digital Audio Broadcast (DAB) .......415
Dimensions ............................................. 668
Display
Drive information........................ 134, 141
Dynamic radar cruise control ..... 298
LDA (Lane Departure Alert) ........ 315
Multi-information display........ 131, 139
Warning message ............................ 597
Distance ............................................ 134, 141
Do-it-yourself maintenance ...............516
Door courtesy lights
Location ................................................. 492
Door lock
Doors......................................................... 164
Smart entry & start system ............. 175
Wireless remote control .................158
D

709Alphabetical index
RC200t_RC F_EE(OM24728E)
Emergency, in case of
If a warning buzzer sounds ........... 591
If a warning light turns on................ 591
If a warning message is
displayed ............................................ 597
If the electronic key does not
operate properly ........................... 650
If the engine will not start .............. 648
If the vehicle battery is
discharged.........................................654
If you have a flat tire ............... 619, 633
If you think something
is wrong.............................................. 589
If your vehicle becomes stuck.....664
If your vehicle has to be
stopped in an emergency........... 581
If your vehicle needs to
be towed.............................................582
If your vehicle overheats ............... 659
Engine........................................................ 670
ACCESSORY mode ..................... 248
Compartment...................................... 522
Engine switch....................................... 247
Hood ......................................................... 518
How to start the engine .................. 247
Identification number .......................670
If the engine will not start .............. 648
Ignition switch (engine switch) ... 247
Overheating ........................................ 659
Engine coolant....................................... 527
Capacity................................................. 676
Checking ................................................527
Preparing and checking
before winter.................................... 384
Engine coolant temperature
gauge ....................................................... 124
Engine immobilizer system ................. 92
Engine oil ................................................. 524
Capacity................................................... 671
Checking ............................................... 524
Preparing and checking
before winter.................................... 384
Engine oil maintenance data ........... 526
Engine oil temperature gauge ..........124
Engine switch ..........................................247
EPS (Electric Power Steering) ....... 349
Warning light....................................... 592
Expert mode ........................................... 352

715Alphabetical index
RC200t_RC F_EE(OM24728E)
Navigation system*
Odometer......................................... 118, 124
Oil
Differential oil .......................................678
Engine oil .................................................671
Opener
Hood ......................................................... 518
Trunk ..........................................................170
Outer foot lights .................................... 492
Outside rear view mirrors ................ 224
Adjusting and folding....................... 224
BSM (Blind Sport Monitor)..........364
Linked mirror function
when reversing................................ 225
Mirror position memory...................214
Outside rear view mirror
defoggers ..........................................484
Outside temperature ...................118, 124
Overheating ...........................................659
Paddle shift switches ................255, 256
Parking assist sensors......................... 320
Parking brake...........................................261
PCS
(Pre-Crash Safety system)............ 356
PCS OFF switch................................ 357
Warning light....................................... 592
Personal lights........................................ 494
Pollen removal mode.......................... 484
Pop-up display.............................. 136, 148
Pop Up Hood............................................ 62
Power outlet ............................................ 501
Power steering (Electric power
steering system)................................. 349
Warning light....................................... 592
Power windows ......................................227
Door lock linked window
operation.............................................229
Jam protection function ................. 228
Operation .............................................. 227
Window lock switch ......................... 227
Pre-Crash Safety system (PCS) .... 356
PCS OFF switch................................ 357
Warning light....................................... 592
N
O
P
*: For vehicles with a navigation or multimedia system, refer to the
“NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.