2017 Lexus IS200t air conditioning

4636-2. Using the air conditioning system
6
Interior features
IS200t_EE(OM53D77E)
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 stick
sharp objects (needles, na ils, etc.) into the seat.
●To prevent battery discharge, do not us e the functions when the engine is off.
Heated steering wheel

4646-2. Using the air conditioning system
IS200t_EE(OM53D77E)
●The heated steering wheel can be used when the engine switch is in IGNITION ON
mode.
●The heated steering wheel will automatically turn off after about 30 minutes.
Each time the switch is pressed, the
intensity of the seat heater changes and
the level indicator lights (amber) light
as follows:
Hi (3 segments lit)  Mid (2 segments
lit)  Lo (1 segment lit)  Off
■The seat heaters can be used when
The engine switch is in IGNITION ON mode.
■Seat heater timer control
To enable seat heater timer control, press and hold the driver and front passenger seat
heater switches at the same time until a buzzer sounds once. If a seat heater is turned on
while seat heater timer control is enabled, th e intensity of the seat heater will automati-
cally change from Hi Mid Lo.
The timing of the change in seat heater intensity differs depending on the temperature
inside the cabin, etc. when the seat heater is operating.
To disable seat heater timer control, press and hold the driver and front passenger seat
heater switches at the same time until a buzzer sounds twice.
Each time the switch is pressed, the
intensity of the seat ventilator changes
and the level indicator lights (green)
light as follows:
Hi (3 segments lit)  Mid (2 segments
lit)  Lo (1 segment lit)  Off
The seat ventilators can be used when th e engine switch is in IGNITION ON mode.
Seat heaters
Type A Type B
Seat ventilators

485
7Maintenance and care
IS200t_EE(OM53D77E)
7-1. Maintenance and careCleaning and protecting the vehicle exterior ................486
Cleaning and protecting the vehicle interior..................490
7-2. Maintenance Maintenance requirements ............................ 493
7-3. Do-it-yourself maintenance
Do-it-yourself service precautions................................ 495
Hood ............................................... 497
Positioning a floor jack ............498
Engine compartment ............... 499
Tires .................................................509
Tire inflation pressure ............... 521
Wheels ........................................... 523
Air conditioning filter ............... 525
Electronic key battery.............. 527
Checking and replacing fuses..............................................530
Light bulbs..................................... 534

4947-2. Maintenance
IS200t_EE(OM53D77E)
■Where to go for maintenance service?
In order to maintain your vehicle in the best possible condition, Lexus recommends that
maintenance service operations as well as ot her inspections and repairs be carried out
by authorized Lexus retailers or Lexus authoriz ed repairers, or any reliable repairers. For
repairs and services covered by your warranty, please visit an authorized Lexus retailer
or repairer, who will use genuine Lexus parts in repairing any difficulties you may
encounter. There can also be advantages in utilizing authorized Lexus retailer or repair-
ers 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 authorized Lexus retailer or Lexus author ized repairer, or any reliable repairer 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 conditioning sys-
tem 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 immediately.)
●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. 93)
If you notice any of these clues, take your vehicle to any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer as soon as possible. Your vehicle may
need adjustment or repair.
WARNING
■If your vehicle is not properly maintained
Improper maintenance could result in serious damage to the vehicle and possible
death or serious injury.
■Handling of the battery
Battery posts, terminals and related accessories contain lead and lead compounds
which are known to cause brain damage. Wash your hands after handling. ( P. 505)

4967-3. Do-it-yourself maintenance
IS200t_EE(OM53D77E)
WARNING
The engine compartment contains many mechanisms and fluids that may move suddenly,
become hot, or become electrically energized. To avoid death or serious injury, observe
the following precautions.
■When working on the engine compartment
●Keep hands, clothing and tools away from the moving fan and engine drive belt.
●Be careful not to touch the engine, radiator, exhaust manifold, 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 or the battery. Fuel and
battery fumes are flammable.
●Be extremely cautious when working on the battery. It contains poisonous and corro-
sive sulfuric acid.
●Take care because brake fluid can harm your hands or eyes and damage painted sur-
faces. 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 engine switch is off.
With the engine switch in IGNITION ON mode, the electric cooling fans may auto-
matically start to run if the air conditioning is on and/or the coolant temperature is high.
(  P. 504)
■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 refillin g, it may indicate a serious problem.

5257-3. Do-it-yourself maintenance
7
Maintenance and care
IS200t_EE(OM53D77E)
Turn the engine switch off.
Open the glove box. Lift up the side
with the stay, disconnect the stay
tabs and remove the partition by
pulling horizontally.
Press the tabs and remove the filter
cover.
Press the tabs and remove the filter
case.
Air conditioning filter
The air conditioning filter must be changed regularly to maintain air condi-
tioning efficiency.
Removal method
1
2
3
4

5267-3. Do-it-yourself maintenance
IS200t_EE(OM53D77E)
Remove the air conditioning filter
from the filter case and replace it
with a new one.
The “UP” marks shown on the filter
and the filter case should be pointing up.
■Checking interval
Inspect and replace the air conditioning filt er according to the maintenance schedule. In
dusty areas or areas with heavy traffic flow, early replacement may be required. (For
scheduled maintenance information, please refer to the “Lexus Service Booklet” or
“Lexus Warranty Booklet”.)
■If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
■Air conditioning filter with deodorizing function
When fragrances are placed in your vehicle, the deodorizing effect may become signifi-
cantly weakened in a short period.
When an air conditioning odor comes out cont inuously, replace the air conditioning filter.
5
NOTICE
■When using the air conditioning system
Make sure that a filter is always installed.
Using the air conditioning system without a filter may cause damage to the system.

5528-2. Steps to take in an emergency
IS200t_EE(OM53D77E)
●Fluid leaks under the vehicle.
(Water dripping from the air conditioning after use is normal.)
●Flat-looking tires or uneven tire wear
●Engine coolant temperature gauge needle continually points higher than nor-
mal.
●Changes in exhaust sound
●Excessive tire squeal when cornering
●Strange noises related to the suspension system
●Pinging or other noises related to the engine
●Engine missing, stumbling or running roughly
●Appreciable loss of power
●Vehicle pulls heavily to one side when braking
●Vehicle pulls heavily to one side when driving on a level road
●Loss of brake effectiveness, spongy feeling, pedal almost touches the floor
If you think something is wrong
If you notice any of the following sy mptoms, your vehicle probably needs
adjustment or repair. Contact any authorized Lexus retailer or Lexus autho-
rized repairer, or any reliable repairer as soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms