engine overheat LEXUS RX200T 2017 User Guide

5496-2. Using the air conditioning system and defogger
6
Interior features
RX350/RX200t_EE_OM48F32E
Turns 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

655
8When trouble arises
RX350/RX200t_EE_OM48F32E
8-1. Essential information
Emergency flashers ..................656
If your vehicle has
to be stopped
in an emergency ...................... 657
8-2. Steps to take
in an emergency
If your vehicle needs
to be towed................................658
If you think something
is wrong....................................... 664
Fuel pump shut off system ...... 665
If a warning light turns
on or a warning buzzer
sounds.......................................... 666
If a warning message
is displayed ................................ 673
If you have a flat tire
(vehicles with
a spare tire)................................ 679
If you have a flat tire
(vehicles without
a spare tire)................................ 693
If the engine will not start ........708
If the electronic key does
not operate properly ...............710
If the vehicle battery
is discharged............................... 714
If your vehicle overheats .......... 718
If the vehicle becomes
stuck ............................................. 722

6768-2. Steps to take in an emergency
RX350/RX200t_EE_OM48F32E
Take the appropriate actions as instructed in the message displayed.
If any of the following messages are displayed, also refer to this Owner’s Manual.
■If “Shift to P Before Exiting Vehicle” is shown
Message is displayed when the driver’s door is opened without turning the
engine switch off with the shift lever in any position other than P.
Shift the shift lever to P.
■If “Power Turned Off to Save Battery” is displayed
This message is displayed when the po wer was cut off due to the automatic
power off function.
The next time the engine is started, increase the engine speed slightly and
maintain it at that speed for approximately 5 minutes to recharge the battery.
■If “AWD System Overheated Switch ing to 2WD Mode” or “AWD System
Overheated 2WD Mode Engaged” is displayed (AWD models)
This message may be displayed when dr iving under extremely high load con-
ditions.
Drive the vehicle at low speeds or stop the vehicle in a safe place with the
engine running until the message is cleared.
If the message is not cleared, have the vehicle inspected by any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional.
■If “A New Key has been Registered Cont act Your Dealer for Details” is dis-
played
This message will be displayed each time the driver’s door is opened when the
doors are unlocked from the outside for approximately one week after a new
electronic key has been registered.
If this message is displayed but you have not had a new electronic key regis-
tered, ask any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional. to check if an unknown electronic key (other than
those in your possession) has been registered.
Other messages displayed on the multi-information display

7188-2. Steps to take in an emergency
RX350/RX200t_EE_OM48F32E
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 anotherduly qualified and equipped profes-
sional.
If your vehicle overheats
The following may indicate that your vehicle is overheating.
●The needle of the engine coolant temperature gauge (P. 96) enters the
red zone, or a loss of engine power is experienced. (For example, the vehi-
cle speed does not increase.)
●“Engine Coolant Temp High Stop in a Safe Place See Owner’s Manual” is
shown on the multi-information display.
●Steam comes out from under the hood.
Correction procedures
1
2
3
1
2

761Alphabetical index
RX350/RX200t_EE_OM48F32E
Child safety................................................. 54
Airbag precautions .............................. 43
Back door precautions .................... 148
Battery precautions ................. 610, 717
Child restraint system......................... 54
How your child should wear
the seat belt .......................................... 37
Installing child restraints .................... 54
Moon roof precautions .................... 217
Panoramic moon roof
precautions.......................................... 221
Power back door precautions....... 161
Power window lock switch............ 210
Power window precautions ........... 213
Rear door child-protectors ............143
Removed key battery
precautions........................................639
Seat belt precautions .......................... 39
Seat heater precautions .................549
Child-protectors .................................... 143
Cleaning .......................................584, 589
Aluminum wheels ............................. 585
Exterior................................................... 584
Interior .................................................... 589
Seat belts............................................... 590
Clock ................................................ 96, 568
Coat hooks .............................................. 577
Condenser .............................................. 607
Console box ........................................... 557
Consumption screen ................. 105, 128
Coolant
Capacity..................................................734
Checking ...............................................605
Preparing and checking
before winter.................................... 429
Cooling system ..................................... 605
Engine overheating ............................ 718
Cornering lights .................................... 266
Cruise control
Cruise control ....................................... 341
Dynamic radar cruise control
with full-speed range ................... 329
Cup holders ............................................558
Curtain shield airbags ............................. 41
Customizable features....................... 740
Customized mode ................................. 417
Daytime running light system ...........267
Defogger
Outside rear view mirrors ............ 542
Rear window........................................ 542
Windshield ........................................... 542
Differential............................................... 736
Dimensions ..............................................726
Display
Dynamic radar cruise control
with full-speed range ................... 329
LKA (Lane-Keeping Assist) .......... 319
Multi-information display................ 100
Warning messages .......................... 673
D

762Alphabetical index
RX350/RX200t_EE_OM48F32E
Do-it-yourself maintenance .............595
Doors
Automatic door locking and
unlocking system..............................143
Back door................................................146
Door lock................................................. 142
Outside rear view mirrors.............206
Power back door.................................. 151
Rear door child-protectors ............143
Side doors .............................................. 140
Side windows........................................ 210
Double locking system .......................... 82
Drive information................................... 105
Drive-start control.....................227, 255
Driver’s seat belt reminder light ..... 669
Driver’s seat position memory ......... 195
Driving
Break-in tips ......................................... 228
Correct posture .................................... 34
Driving mode select switch ............ 417
Procedures ........................................... 226
Winter drive tips................................. 429
Driving position memory .................... 195
Memory recall function ................... 198
Power easy access system ............ 195
Dynamic radar cruise control
with full-speed range ....................... 329
Dynamic Torque Control AWD
system .................................................... 423
Eco drive mode ....................................... 417
Eco Driving Indicator............................120
Electric Power Steering (EPS) ....... 423
Warning light....................................... 667
Electronic key ..........................................134
Battery-saving function .................... 169
If the electronic key does
not operate properly...................... 710
Replacing the battery ...................... 638
Electronic sunshade ..............................218
Jam protection function ................... 219
Operation ............................................... 218
Emergency brake signal.................... 423
Emergency flashers ............................. 656
Emergency tire puncture
repair kit ................................................ 693
Emergency, in case of
If a warning buzzer sounds .......... 666
If a warning light turns on .............. 666
If a warning message is
displayed ............................................ 673
If the battery is discharged ............. 714
If the electronic key does
not operate properly...................... 710
If the engine will not start ............... 708
If you have a flat tire.............. 679, 693
If you lose your keys ............... 136, 138
If you think something is
wrong................................................... 664
If your vehicle becomes stuck ..... 722
If your vehicle has to be
stopped in an emergency ......... 657
If your vehicle needs
to be towed.......................................658
If your vehicle overheats.................. 718
E

763Alphabetical index
RX350/RX200t_EE_OM48F32E
Engine
ACCESSORY mode ..................... 247
Compartment..................................... 599
Engine switch....................................... 246
Hood ........................................................ 597
How to start the engine .................. 246
Identification number ....................... 728
If your vehicle has to be
stopped in an emergency.......... 657
Ignition switch (engine switch) ... 246
Overheating ...........................................718
Engine coolant
Capacity ................................................. 734
Checking .............................................. 605
Preparing and checking
before winter .................................... 429
Engine coolant temperature
gauge......................................................... 96
Engine immobilizer system...................77
Engine oil
Capacity ................................................. 729
Checking ................................................ 601
Preparing and checking
before winter .................................... 429
Engine oil pressure gauge ................. 107
Engine oil temperature gauge ......... 107
Engine switch ......................................... 246
EPS
(Electronic Power Steering)......... 423
Warning light ....................................... 667
ERA-GLONASS ........................ 46, 578
Flat tire ........................................... 679, 693
Floor mats ................................................... 32
Fluid
Automatic transmission.................. 735
Brake ....................................................... 736
Washer.......................................................611
Fog lights
Replacing light bulbs ....................... 643
Switch ...................................................... 278
Follow me home system .................... 266
Front fog lights
Replacing light bulbs ...................... 643
Switch ...................................................... 278
Front passenger footwell hooks ..... 575
Front passenger’s seat belt
reminder light ..................................... 669
Front position lights
Light switch........................................... 265
Replacing light bulbs ....................... 643
Front seat heaters................................. 550
Front seats
Adjustment .............................................185
Cleaning ................................................589
Correct driving posture.....................34
Driving position memory ................ 195
Head restraints ................................... 200
Power easy access system............. 195
Seat heaters..........................................550
Seat position memory .......................195
F

768Alphabetical index
RX350/RX200t_EE_OM48F32E
Navigation system*
Odometer...................................................118
Oil
Engine oil ............................................... 729
Rear differential oil............................. 736
Transfer oil............................................. 736
Opener
Back door................................................146
Hood ........................................................ 597
Power back door.................................152
Outside rear view mirrors ................206
Adjusting and folding.......................206
Blind Spot Monitor (BSM) ...........355
Linked mirror function
when reversing............................... 208
Mirror position memory.................. 195
Outside rear view mirror
defoggers........................................... 542
Outside temperature display ............. 96
Overheating ............................................ 718
Paddle shift switches ................252, 253
Panoramic moon roof ..........................218
Jam protection function ................... 219
Operation ............................................... 218
Parking assist sensors........................... 371
Parking brake......................................... 259
Parking brake engaged
warning buzzer/message ........... 261
Warning light....................................... 667
PCS (Pre-Crash Safety system) ....300
Warning light.......................................668
Personal lights........................................ 554
Power back door ..................................... 151
Touchless power back door ......... 153
Wireless remote control ...................151
Power back door opener
and closer ................................................ 151
Power easy access system .................195
Power outlets ......................................... 574
Power steering (Electric
Power Steering system) ................. 423
Warning light....................................... 667
Power windows
Door lock linked window
operation.............................................. 212
Jam protection function ..................... 211
Operation ............................................... 210
Window lock switch .......................... 210
Pre-Crash Safety system (PCS) ....300
Warning light.......................................668
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