engine overheat Lexus IS250 2013 Navigation Manual / LEXUS 2013 IS250,IS350 (OM53B64U) User Guide

When trouble arises5
453
5-1. Essential informationEmergency flashers............... 454
If your vehicle needs to be towed................................. 455
If you think something is wrong ....................................... 461
Fuel pump shut off system.... 462 5-2. Steps to take in an
emergency
If a warning light turns on or a warning buzzer
sounds... ................................. 463
If a warning message is displayed................................ 473
If you have a flat tire............... 483
If the engine will not start .... 492
If the shift lever cannot be shifted from P ....................... 494
If you lose your keys .............. 495
If the electronic key does not operate properly.......... 496
If the vehicle battery is discharged ............................ 500
If your vehicle overheats ..... 504
If the vehicle becomes stuck........................................ 507
If your vehicle has to be stopped in an
emergency ............................ 508

504
5-2. Steps to take in an emergency
If your vehicle overheats
If your engine overheats:
Stop the vehicle in a safe place and turn off the automatic air
conditioning system.
Check to see if steam is coming out from under the hood.
If you see steam: Stop the engine. Carefully lift the hood after the steam sub-
sides and then restart the engine.
If you do not see steam: Leave the engine running and carefully lift the hood.
Check to see if the cool ing fans are operating.
If the fans are operating: Wait until the temperature of the engine (shown on the
instrument cluster) begins to fall and then stop the engine.
If the fans are not operating: Stop the engine immediately and call your local Lexus
dealer.
After the engine has cooled
down sufficiently, check the
engine coolant level and inspect
the radiator core (radiator) for
any leaks.
If the engine compartment
cover needs to be removed:
P. 3 9 3
STEP1
STEP2
STEP3
STEP4

5
When trouble arises
505
5-2. Steps to take in an emergency
■Overheating
If you observe the following, your vehicle may be overheating.
●The engine coolant temperature gauge enters the red zone or a loss of power is
experienced.
●Steam is coming from under the hood.
CAUTION
■To prevent an accident or injury when in specting under the hood of your vehicle
●If steam is seen coming from under the hood, do not open the hood until the
steam has subsided. The engine compartm ent may be very hot, causing serious
injury such as burns.
●Keep hands and clothing away from the fans and other belts while the engine is
running.
●Do not loosen the radiator cap while the engine and radiator are hot.
Serious injury, such as burns, may resu lt from hot coolant and steam released
under pressure.
Add engine coolant if required.
Water can be used in an emer-
gency if engine coolant is
unavailable. ( P. 5 1 7 )
Have the vehicle checked at your nearest Lexus dealer as soon as pos-
sible.
STEP5

570
Alphabetical index
Child safetyAirbag precautions............................ 105
Battery precautions ............. 404, 502
Child restraint system......................... 115
Child-protectors ................................... 49
How your child should wear the seat belt .......................................... 69
Installing child restraints .................... 119
Moon roof precautions ..................... 87
Power window lock switch................81
Power window precautions ............ 83
Removed electronic key battery precautions ........................427
Seat belt comfort guide ..................... 67
Seat belt extender precautions ....... 71
Seat belt precautions .......................... 70
Seat heater precautions ..... 340, 342
Trunk precautions ................................ 55 Cigarette lighter ................................... 337
Cleaning
Exterior .................................................... 372
Interior......................................................376
Seat belts ................................................ 377
Clock ......................................................... 332
Coat hooks.............................................. 347
Compass .................................................. 359
Condenser ..............................................400
Console box ........................................... 325
Cooling system Engine overheating .......................... 504
Cornering assist sensors .................... 185
Cruise control........................................... 181
Cup holder .............................................. 327
Curtain shield airbags ........................... 99
Customizable features ....................... 542

571
Alphabetical index
Daytime running light system............ 169
Defogger*Rear window.......................................... 218
Side mirror .............................................. 218
Dimension .................................................510
Dinghy towing ....................................... 206
Display Satellite switch mode....................... 333
Trip information .................................... 163
Warning message .............................473
Do-it-yourself maintenance............. 385
Door courtesy lights Door courtesy lights .......................... 319
Wattage ................................................. 525
Door pockets ......................................... 329
Doors Door lock ............................... 33, 45, 48
Door windows ......................................... 81
Side mirrors............................................. 78
Driver's seat belt reminder light .... 465
Driving Correct posture .....................................97
Procedures .............................................130
Driving position memory ..................... 59 Electric power steering .........................191
Electronic key
If the electronic key does not operate properly ........................... 496
Emergency, in case of If a warning message is displayed............................................. 473
If the electronic key does not operate properly ........................... 496
If the engine will not start................ 492
If the shift lever cannot be shifted from P ...................................494
If the vehicle has a discharged battery ................................................. 500
If the warning buzzer sounds ......463
If the warning light turns on...........463
If you have a flat tire ........................ 483
If you lose your keys ........................ 495
If you think something is wrong .................................................... 461
If your vehicle becomes stuck .... 507
If your vehicle has to be stopped in an emergency ............................ 508
If your vehicle needs to be towed................................................... 455
If your vehicle overheats ............... 504D
*: For vehicles with a navigation system, refe r to the “Navigation System Owner’s Manual”.
E

572
Alphabetical index
Emergency flashersSwitch ...................................................... 454
Engine Compartment .......................................391
Engine switch........................................ 140
Hood....................................................... 388
How to start the engine................... 140
Identification number.......................... 511
If the engine will not start ............... 492
Ignition switch....................................... 140
Overheating.........................................504
Engine compartment cover .............393
Engine coolant Capacity ................................................... 517
Checking ...............................................398
Preparing and checking before winter ......................................201
Engine coolant temperature gauge....................................................... 153
Engine immobilizer system................... 91
Engine oil Capacity ...................................................514
Checking ...............................................395
Preparing and checking before winter ......................................201
EPS ................................................................191
Event data recorder ............................... 22 First-aid kit storage belt .....................350
Floor mat .................................................. 349
Fluid
Brake ....................................................... 400
Washer................................................... 405
Fog lights Switch .......................................................... 171
Wattage ................................................. 525
Footwell lights ..........................................319
Front fog lights Switch .......................................................... 171
Wattage ................................................. 525
Front passenger occupant classification system ............................ 110
Front passenger's seat belt
reminder light ..................................... 465F

576
Alphabetical index
Noise from under vehicle...................... 19
Odometer................................................. 153
OilEngine oil ...............................................395
Opener Fuel filler door.........................................88
Hood....................................................... 388
Trunk ........................................................... 53
Outer foot lights Outer foot lights ...................................319
Wattage.................................................. 525
Outside rear view mirrors Adjusting and folding ......................... 78
Mirror position memory ................... 59
Outside temperature display............ 163
Overhead console ............................... 326
Overhead courtesy lights Overhead courtesy lights ...............319
Wattage.................................................. 525
Overheating, Engine.......................... 504 Parking assist sensors*........................ 185
Parking brake............................................ 151
Parking lights
Replacing light bulbs ........................444
Switch ........................................................ 167
Wattage ................................................. 525
Personal lights Switch ........................................................ 321
Power outlet ........................................... 338
Power windows ..........................................81
Radiator ....................................................400
Radio* ....................................................... 223
RDS* .......................................................... 225
Rear sunshade ....................................... 344
Rear turn signal lights Replacing light bulbs ........................444
Wattage ................................................. 525
Rear view mirror Compass ............................................... 359
Rear window defogger* ..................... 218
Replacing Electronic key battery ......................426
Fuses ........................................................ 428
Light bulbs .............................................444
Reporting safety defects for U.S. owners..........................................550
Reset the maintenance data ............380N
O
P
R

582
What to do if...
What to do if...
A tire puncturesP. 4 8 3If you have a flat tire
The engine does not start
P. 4 9 2If the engine will not start
P. 9 1Engine immobilizer system
P. 5 0 0If the vehicle battery is discharged
The shift lever cannot be
moved out of PP. 4 9 4If the shift lever cannot be shifted
from P
The engine coolant temperature
gauge enters the red zone
Steam can be seen coming
from under the hood
P. 5 0 4If your vehicle overheats
The key is lostP. 4 9 5If you lose your keys
The battery runs outP. 5 0 0If the vehicle battery is discharged
The doors cannot be lockedP. 4 8Doors
The horn begins to soundP. 9 3Alarm
The vehicle is stuck in mud or
sandP. 5 0 7If the vehicle becomes stuck