engine overheat Lexus ES350 2009 User Guide

416
5-2. Steps to take in an emergency
ES350_U_(L/O_0808)
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.
Remove the engine compartment cover. ( →P. 312)
Check to see if the cooling fan is operating.
If the fan is operating: Wait until the temperature of the engine (shown on the
instrument cluster) begins to fall and then stop the engine.
If the fan is 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.STEP1
STEP2
STEP3
STEP4
STEP5

5
When trouble arises
417
5-2. Steps to take in an emergency
ES350_U_(L/O_0808)
■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.
Add engine coolant if required.
Water can be used in an emer-
gency measure if engine coolant
is unavailable. (→P. 4 2 6 )
Install the reservoir cap.
Make sure that the engine cool-
ant reservoir hose is positioned
as shown in the illustration.
Have the vehicle checked at your nearest Lexus dealer as soon as pos-
sible.
STEP6
STEP7

462
Alphabetical index
ES350_U_(L/O_0808)
Cooling systemEngine overheating ............................416
Cornering assist sensors .................... 155
Cruise control Cruise control ....................................... 143
Dynamic radar crui se control .......146
Cup holders ............................................260
Curtain shield airbags............................ 77
Customizable features ....................... 447
Daytime running light system ........... 136
Defogger Rear window......................................... 195
Side mirror ............................................. 195
Dimension ................................................ 422
Dinghy towing ......................................... 185
Display Dynamic radar crui se control .......146
Trip information .................................... 132
Warning message.............................386
Do-it-yourself maintenance .............304
Door courtesy lights Door courtesy lights......................... 253
Wattage.................................................... 431
Doors Door glasses ........................................... 60
Door lock................................. 22, 34, 37
Side mirrors ............................................. 58
Driver's seat belt reminder light ..... 377
Driving Break-in tips .......................................... 109
Correct posture .................................... 75
Procedures ............................................ 108
Winter driving tips............................... 172
Driving position memory ...................... 44 Electronic key
If the electronic key does not
operate properly................................ 411
Emergency, in case of
If the electronic key does not operate properly................................ 411
If the engine will not start ............... 407
If the shift lever cannot be shifted from P................................... 409
If the vehicle has discharged
battery ................................................... 413
If the warning buzzer sounds.......375
If the warning light turns on...........375
If the warning message is
displayed ............................................ 386
If you have a flat tire .........................397
If you lose your keys .......................... 410
If you think something is
wrong .................................................... 371
If your vehicle becomes stuck ...... 419
If your vehicle needs to be towed ................................................... 365
If your vehicle overheats.................. 416
Emergency flashers
Switch...................................................... 364
Engine
Compartment ......................................... 311
Engine switch .......................................... 116
Hood .......................................................308
How to start the engine ..................... 116
Identification number .......................423
If the engine will not start ............... 407
Ignition switch .........................................116
Overheating .......................................... 416
Engine compartment cover ...............312
D
E

465
Alphabetical index
ES350_U_(L/O_0808)
Light bulbsReplacing............................................... 354
Wattage ................................................... 431
Lights
Door courtesy lights ........................ 253
Emergency flasher switch ............. 364
Fog light switch.....................................138
Hazard light switch........................... 364
Headlights switch ................................ 135
Interior light switch............................ 253
Outer foot lights................................. 253
Personal light switch ........................ 255
Replacing light bulbs ....................... 354
Shift lever lighting .............................. 253
Turn signal lever................................... 122
Vanity lights .......................................... 264
Wattage ................................................... 431
Load capacity ............................................ 171 Maintenance
Do-it-yourself maintenance......... 304
General maintenance .................... 300
Maintenance data .............................. 422
Maintenance requirements ......... 298
Meter
Instrument panel light control........126
Meters....................................................... 125
Mirrors Inside rear view mirror ....................... 57
Side mirror heater .............................. 195
Side mirrors ............................................ 58
Vanity mirrors ......................................264
Moon roof................................................... 63
MP3 disc ..................................................... 211
Multi-information display ..................... 131
Odometer................................................. 125
Oil Engine oil................................................. 313
Opener Fuel filler door ......................................... 67
Hood ....................................................... 308
Trunk .............................................................41
Outer foot lights Outer foot lights .................................253
Wattage ................................................... 431
Outside rear view mirrors
Adjusting and folding......................... 58
Mirror position memory .................... 44
Outside temperature display ........... 132
Overhead console ...............................259
Overheating, Engine............................ 416LM
O

470
ES350_U_(L/O_0808)
What to do if...
What to do if...
A tire puncturesP. 3 9 7If you have a flat tire
The engine does not start
P. 4 0 7If the engine will not start
P. 7 0Engine immobilizer system
P. 4 1 1If the electronic key does not operate
properly
The shift lever cannot be
moved outP. 4 0 9If 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. 4 1 6If your vehicle overheats
The key is lostP. 4 1 0If you lose your keys
The battery runs outP. 4 1 3If the vehicle battery is discharged
The doors cannot be lockedP. 3 7Doors
The horn begins to soundP. 7 2Alarm
The vehicle is stuck in mud or
sandP. 4 1 9If the vehicle becomes stuck