2016 Lexus IS300h heating

320
IS300h_EE(OM53D56E)4-6. Driving tips
■Using Eco drive mode
When using Eco drive mode, the torque corresponding to the accelerator
pedal depression amount can be generated more smoothly than it is in normal
conditions. In addition, the operation of the air conditioning system (heating/
cooling) will be minimized, improving the fuel economy. (
→P. 2 9 3 )
■Use of Hybrid System Indicator
Eco-friendly driving is possible by keeping the indicator needle (except F
SPORT models) or bar display (F SPORT models) of Hybrid System Indicator
within the Eco area. ( →P. 1 1 3 )
■When braking
Make sure to operate the brakes gently and in good time. A greater amount
of electrical energy can be regenerated when slowing down.
■Delays
Repeated acceleration and deceleration, as well as long waits at traffic lights,
will lead to bad fuel economy. Check traffic reports before leaving and avoid
delays as much as possible. When driving in a traffic jam, gently release the
brake pedal to allow the vehicle to move forward slightly while avoiding over-
use of the accelerator pedal. Doing so can help control excessive gasoline
consumption.
■Highway driving
Control your speed and keep at a constant speed. Before stopping at a toll
booth or similar, allow plenty of time to release the accelerator and gently
apply the brakes. A greater amount of electrical energy can be regenerated
when slowing down.
Hybrid vehicle driving tips
For economical and ecological driving, pay attention to the following points:

4216-1. Using the air conditioning system
6
Interior features
IS300h_EE(OM53D56E)
■Registering air conditioning settings to electronic keys (vehicles with driving position
memory)
●Unlocking the vehicle using an electronic key and turning the power switch to ON
mode will recall that key’s regist ered air conditioning settings.
●When the power switch is turned off, the cu rrent air conditioning settings will automati-
cally 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 conditioni ng setting when unlocked using the smart
entry & start system can be changed.* For details, contact any authorized Lexus dealer
or repairer, or another duly qualified 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 humidity in the vehicle is high. Turning
(“A/C”) 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.
■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 automatically switch depending on the tempera-
ture setting or the inside temperature.
■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 performance, perform the following operations:
●Adjust the fan speed
●Turn off Eco drive mode

4236-1. Using the air conditioning system
6
Interior features
IS300h_EE(OM53D56E)
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.
CAUTION
●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 12-volt battery discharge, do not use the functions when the hybrid system
is off.
Heated steering wheel

5718-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53D56E)
●The needle of the engine coolant temperature gauge (→P. 109) enters the
red zone or a loss of hybrid system power is experienced. (For example, the
vehicle speed does not increase.)
●“Hybrid System Overheat” is shown on the multi-information display.
●Steam comes out from under the hood.
■If the needle of the engine coolant temperature gauge enters the red zone
Stop the vehicle in a safe place and turn off the air conditioning 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 (radi-
ator) for any leaks. Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact any autho-
rized Lexus dealer or repairer, or
another duly qualified and
equipped professional.
The coolant level is satisfactory if
it is between the “FULL” and
“LOW” lines on the reservoir.
Reservoir
“FULL”
“LOW”
If your vehicle overheats
The following may indicate that your vehicle is overheating.
Correction procedures
1
2
3
1
2
4
1
2
3

611Alphabetical index
IS300h_EE(OM53D56E)
Child-protectors ................................... 140
Cleaning ........................................442, 446Aluminum wheels .............................. 443
Exterior.................................................... 442
Interior .....................................................446
Seat belts................................................ 447
Clock .........................................................435
Coat hooks ..............................................439
Condenser ............................................. 462
Console box ........................................... 429
Coolant .....................................................460 Capacity ................................................ 583
Checking .............................................. 460
Preparing and checking
before winter .................................... 322
Cooling system......................................460
Engine overheating ............................571
Hybrid system overheating ............571
Cruise control Cruise control .....................................250
Dynamic radar cruise control ..... 254
Cup holders ............................................430
Current fuel consumption....................116
Curtain shield airbags ........................... 43
Customizable features ....................... 592 DAB (Digital Audio Broadcast) ..... 352
Daytime running light system ......... 230
Defogger
Outside rear view mirrors .............. 418
Rear window..........................................418
Windshield ............................................. 418
Differential............................................... 585
Digital Audio Broadcast (DAB) ..... 352
Dimensions ............................................. 578
Display Drive information...................................116
Dynamic radar cruise control ..... 254
LDA (Lane Departure Alert) ........ 271
Multi-information display...................115
Warning message .............................527
Distance ...................................................... 117
Do-it-yourself maintenance ...............451
Door courtesy lights Location ................................................. 425
Wattage ................................................ 588
Door lock
Doors......................................................... 136
Smart entry & start system ............. 149
Wireless remote control .................130D

613Alphabetical index
IS300h_EE(OM53D56E)
If you have a flat tire ............. 545, 559
If you think something is wrong...............................................520
If your vehicle becomes stuck..... 575
If your vehicle has to be stopped in an emergency........... 513
If your vehicle needs to be towed...............................................514
If your vehicle overheats ..................571
Emergency brake signal .................... 297
Emergency flashers .............................. 512
Emergency tire puncture
repair kit ................................................545
Energy monitor......................................... 121
Engine....................................................... 580 ACCESSORY mode ....................... 213
Compartment......................................455
Engine switch......................................... 212
Hood ........................................................453
How to start the hybrid
system .................................................... 212
Identification number ....................... 579
Ignition switch (power switch)................................... 212
Overheating ...........................................571
Power switch ......................................... 212 Engine coolant....................................... 460
Capacity.................................................583
Checking ............................................... 460
Preparing and checking
before winter.....................................322
Engine coolant temperature
gauge ...................................................... 109
Engine oil ................................................. 456
Capacity...................................................581
Checking ............................................... 456
Preparing and checking before winter.....................................322
Engine oil maintenance data ........... 458
Engine switch ........................................... 212
EPS (Electric Power Steering) ....... 296 Function.................................................. 296
Warning light........................................522
EV drive mode......................................... 217
EV indicator ............................................... 117

616Alphabetical index
IS300h_EE(OM53D56E)
HooksCargo hooks........................................ 432
Coat hooks ........................................... 439
Retaining hooks (floor mat)............. 34
Horn ............................................................ 178
Hybrid battery (traction battery).......83
Hybrid battery (traction battery) air vents.....................................................84
Hybrid system ........................................... 79 Emergency shut off system.............. 84
Energy monitor/consumption screen.........................121
EV drive mode ..................................... 217
High voltage components ...............83
Hybrid System Indicator ................... 113
Hybrid system precautions.............. 83
Hybrid vehicle driving tips ............320
If the hybrid system will not start ...................................... 560
Overheating ...........................................571
Power (ignition) switch ..................... 212
Starting the hybrid system............... 212
Hybrid System Indicator .......................113
Hybrid transmission .............................. 219 If the shift lever cannot be shifted from P ...................................562
Paddle shift switches .......................... 221
S mode.................................................... 222 Identification
Engine ..................................................... 579
Vehicle.................................................... 579
Ignition switch (power switch) ..........212
Illuminated entry system .................... 426
Immobilizer system................................. 90
Indicators .................................................. 106
Initialization Engine oil maintenance data .......458
Moon roof.................................................191
Multi-information display................... 117
Power windows ...................................186
Tire pressure warning
system.................................................. 468
Inside door handle lights ................... 425
Inside rear view mirror ......................... 179
Instrument panel light control ............ 112
Interior lights........................................... 425 Wattage ................................................ 588
Intrusion sensor and tilt sensor .......... 99
ISOFIX rigid anchors ............................ 69
Jack Positioning the jack .......................... 454
Vehicle-equipped jack................... 476
Jack handle ..............................................476
Jam protection function Moon roof...............................................190
Power window .....................................186I
J

619Alphabetical index
IS300h_EE(OM53D56E)
Moon roof ................................................. 189Door lock linked moon roof
operation ............................................. 190
Jam protection function................... 190
Operation............................................... 189
MP3 disc ..................................................354
Multi-information display .....................115 Audio system-linked ........................... 115
Drive information .................................. 116
Dynamic radar cruise
control.................................................. 254
Energy monitor..................................... 122
LDA (Lane Departure Alert)......... 271
Navigation system-linked................. 115
Settings........................................................117
Switching the display .......................... 116
Warning message............................. 527
Navigation system
*
Needle ......................................................... 117 Odometer ................................................ 109
Oil
Differential oil.......................................585
Engine oil .................................................581
Opener
Hood ....................................................... 453
Trunk.......................................................... 143
Outer foot lights Location ................................................. 425
Replacing light bulbs ....................... 503
Wattage ................................................ 588
Outside rear view mirrors ................... 181 Adjusting and folding ......................... 181
BSM (Blind Sport Monitor) ...........310
Linked mirror function
when reversing .................................183
Mirror position memory .................. 169
Outside rear view mirror defoggers ........................................... 418
Outside temperature........................... 109
Overheating .............................................571
N
O
*: For vehicles with a navigation or multimedia system, refer to
“NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.