2014 Lexus IS300h heating

309
4
Driving
IS300h_EE(OM53C61E)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 8 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:
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4076-1. Using the air conditioning system
6
Interior features
IS300h_EE(OM53C61E)
■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 registered air conditioning settings.
●When the power switch is turned off, the current 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 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 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 warm 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
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4096-1. Using the air conditioning system
6
Interior features
IS300h_EE(OM53C61E)
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, nails, etc.) into the seat.
●To prevent 12-volt battery discharge, do not use the functions when the hybrid system
is off.
Heated steering wheel
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5528-2. Steps to take in an emergency
IS300h_EE(OM53C61E)
●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
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593Alphabetical index
IS300h_EE(OM53C61E)
Child-protectors ................................... 140
Cleaning ....................................... 426, 430
Aluminum wheels .............................. 427
Exterior.................................................... 426
Interior .....................................................430
Seat belts..................................................431
Clock .........................................................420
Coat hooks .............................................. 424
Condenser ............................................. 446
Console box ............................................ 414
Coolant ..................................................... 444
Capacity ................................................ 565
Checking ............................................... 444
Preparing and checking
before winter ....................................... 311
Cooling system...................................... 444
Engine overheating ..........................552
Hybrid system overheating ..........552
Cruise control
Cruise control ..................................... 245
Dynamic radar cruise control ..... 249
Cup holders ............................................. 415
Current fuel consumption.................... 116
Curtain shield airbags ........................... 43
Customizable features ....................... 574DAB (Digital Audio Broadcast) ..... 339
Daytime running light system ..........227
Defogger
Front windshield................................. 404
Outside rear view mirrors ............ 404
Rear window........................................ 404
Differential............................................... 567
Digital Audio Broadcast (DAB) ..... 339
Dimensions ............................................. 560
Display
Drive information...................................116
Dynamic radar cruise control ..... 249
LDA (Lane Departure Alert) .......262
Multi-information display...................115
Warning message ............................509
Distance ...................................................... 117
Do-it-yourself maintenance ............. 435
Door courtesy lights
Location ..................................................... 411
Wattage ................................................. 570
Door lock
Doors......................................................... 136
Smart entry & start system ............. 149
Wireless remote control ................. 130D
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595Alphabetical index
IS300h_EE(OM53C61E)
If you have a flat tire ............. 526, 540
If you think something
is wrong...............................................502
If your vehicle becomes stuck.... 556
If your vehicle has to be
stopped in an emergency..........495
If your vehicle needs to
be towed.............................................496
If your vehicle overheats ................552
Emergency brake signal .................... 287
Emergency flashers ............................. 494
Emergency tire puncture
repair kit ................................................ 526
Energy monitor......................................... 121
Engine........................................................ 562
ACCESSORY mode ...................... 210
Compartment...................................... 439
Engine switch.......................................209
Hood ........................................................ 437
How to start the hybrid
system ..................................................209
Identification number ........................ 561
Ignition switch
(power switch).................................209
Overheating .........................................552
Power switch .......................................209Engine coolant....................................... 444
Capacity................................................. 565
Checking ............................................... 444
Preparing and checking
before winter........................................ 311
Engine coolant temperature
gauge ...................................................... 109
Engine oil ................................................. 440
Capacity................................................. 563
Checking ............................................... 440
Preparing and checking
before winter........................................ 311
Engine switch ......................................... 209
EPS (Electric Power Steering) ....... 286
Function.................................................. 286
Warning light....................................... 504
EV drive mode......................................... 214
EV indicator ............................................... 117
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598Alphabetical index
IS300h_EE(OM53C61E)
Hooks
Cargo hooks.......................................... 417
Coat hooks ........................................... 424
Retaining hooks (floor mat)............. 34
Horn ............................................................. 177
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 ..................................... 214
High voltage components ............... 83
Hybrid System Indicator ................... 113
Hybrid system precautions.............. 83
Hybrid vehicle driving tips ........... 309
If the hybrid system
will not start .........................................541
Overheating .........................................552
Power (ignition) switch ...................209
Starting the hybrid system.............209Hybrid System Indicator ...................... 113
Hybrid transmission ..............................216
If the shift lever cannot be
shifted from P................................... 543
Paddle shift switches.......................... 218
S mode ..................................................... 219
Identification
Engine ....................................................... 561
Vehicle...................................................... 561
Ignition switch (power switch) ........ 209
Illuminated entry system ...................... 412
Immobilizer system ................................. 90
Indicators .................................................. 106
Initialization
Moon roof ...............................................189
Multi-information display................... 117
Power windows ...................................185
Tire pressure warning
system.................................................... 451
I
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602Alphabetical index
IS300h_EE(OM53C61E)
Odometer................................................. 109
Oil
Differential oil ....................................... 567
Engine oil ...............................................563
Opener
Hood ........................................................ 437
Trunk ..........................................................143
Outer foot lights
Location..................................................... 411
Replacing light bulbs....................... 486
Wattage..................................................570
Outside rear view mirrors .................180
Adjusting and folding........................ 180
BSM (Blind Sport Monitor)..........299
Linked mirror function
when reversing................................. 182
Mirror position memory.................. 168
Outside rear view mirror
defoggers ..........................................404
Outside temperature ........................... 109
Overheating ...........................................552Paddle shift switches .............................218
Parking assist sensors..........................267
Parking brake......................................... 224
PCS
(Pre-Crash Safety system)............ 292
Function...................................................292
PCS OFF switch................................ 293
Warning light....................................... 504
Personal lights.......................................... 412
Wattage ................................................. 570
Pollen removal mode.......................... 404
Pop-up display.......................................... 117
Pop Up Hood............................................ 56
Power control unit .................................. 83
Power control unit coolant ............... 444
Capacity................................................. 565
Checking ............................................... 444
Preparing and checking before
winter ....................................................... 311
OP
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