2008 Lexus ES350 engine overheat

When trouble arises5
351
ES350_U_(L/O_0708)
5-1. Essential information................... 352
If your vehicle needs to be towed ...................................... 352
If you think something is wrong ..................................... 358
Fuel pump shut off system ..................................... 359
Event data recorder .............. 360
5-2. Steps to take in an emergency.................... 362
If a warning light turns on or a warning buzzer
sounds... ................................. 362
If a warning message is displayed ................................ 373
If you have a flat tire .............. 384
If the engine will not start.......................................... 394
If the shift lever cannot be shifted from P........................ 396
If you lose your keys ............... 397
If the electronic key does not operate properly ......... 398
If the vehicle battery is discharged............................ 400
If your vehicle overheats ............................... 403 If the vehicle becomes
stuck........................................ 405

5
When trouble arises
403
5-2. Steps to take in an emergency
ES350_U_(L/O_0708)
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 and carefully lift the hood.
If you do not see steam: Leave the engine running and carefully lift the hood.
Remove the engine compartment cover. ( →P. 302)
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.
Add engine coolant if required.
Water can be used in an emer-
gency measure if engine coolant
is unavailable. (→P. 4 1 2 )
STEP1
STEP2
STEP3
STEP4
STEP5
STEP6

404
5-2. Steps to take in an emergency
ES350_U_(L/O_0708)
■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 inspecting under the hood of your vehicle
●Keep hands and clothing away from the fan 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 result from hot coolant and steam released
under pressure.
NOTICE
■When adding engine coolant
Wait until the engine has cooled down before adding engine coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot engine too quickly
can cause damage to the engine.
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.
STEP7

445
Alphabetical index
ES350_U_(L/O_0708)
Brake assist .............................................. 157
Break-in tips ............................................. 107
CareExterior ................................................... 282
Interior..................................................... 285
Seat belts ............................................... 286
Cargo capacity ....................................... 163
Cargo hooks ...........................................270
CD changer ............................................. 199
CD player.................................................. 199
Chains......................................................... 169
Child restraint system Booster seats, definition.................... 93
Booster seats, installation ..................97
Convertible seats, definition ........... 93
Convertible seats, installation .........97
Front passenger occupant
classification system ........................ 88
Infant seats, definition ......................... 93
Infant seats, installation........................97
Installing CRS with lower
anchorages ........................................ 100
Installing CRS with seatbelts ...........97
Installing CRS with top straps ........ 101
Child safety
Airbag precautions ............................. 83
Battery precautions................ 314, 402
Child restraint system ........................ 93
Child-protectors................................... 38
How your child should wear the seatbelt ........................................... 53
Installing child restraints .................... 96
Moon roof precautions ..................... 66 Power window lock switch ..............60
Power window precautions ............ 62
Removed electronic key battery
precautions........................................333
Seat belt comfort guide .......................51
Seat belt extender precautions......55
Seat belt precautions .......................... 54
Seat heater precautions.................. 263
Trunk precautions................................. 42
Child-protectors ......................................38
Cigarette lighter..................................... 261
Cleaning
Exterior....................................................282
Interior .................................................... 285
Seat belts ............................................... 286
Clock ......................................................... 259
Compass .................................................. 277
Condenser ..............................................309
Console box ............................................ 251
Cooling system
Engine overheating.......................... 403
Cornering assist sensors ......................151
Cruise control Cruise control....................................... 139
Dynamic radar cruise control........142
Cup holders ............................................ 254
Curtain shield airbags.............................77
Customizable features .......................433
Daytime running light system ........... 133
Defogger Rear window ......................................... 189
Side mirror.............................................. 189
Dimension............................................... 408
Dinghy towing ......................................... 180
C
D

446
Alphabetical index
ES350_U_(L/O_0708)
DisplayDynamic radar crui se control ....... 142
Trip information .................................... 129
Warning message............................. 373
Do-it-yourself maintenance ............. 294
Door courtesy lights Door courtesy lights..........................247
Wattage.................................................... 417
Doors Door glasses ........................................... 60
Door lock................................. 22, 34, 37
Side mirrors ............................................. 58
Driver's seat belt reminder light ..... 364
Driving Break-in tips ...........................................107
Correct posture .................................... 75
Procedures ............................................ 106
Winter driving tips............................... 167
Driving position memory ...................... 44
Electronic key If the electronic key does not
operate properly ............................398
Emergency, in case of
If the electronic key does not operate properly ............................398
If the engine will not start ............... 394
If the shift lever cannot be shifted from P ...................................396
If the vehicle has discharged
battery ................................................. 400
If the warning buzzer sounds ...... 362
If the warning light turns on .......... 362 If the warning message is
displayed .............................................373
If you have a flat tire ........................ 384
If you lose your keys .........................397
If you think something is wrong .................................................. 358
If your vehicle becomes stuck .... 405
If your vehicle needs to be towed ................................................... 352
If your vehicle overheats................ 403
Engine Compartment ....................................... 301
Engine switch .......................................... 114
Hood ....................................................... 298
How to start the engine ..................... 114
Identification number ...................... 409
If the engine will not start ............... 394
Ignition switch ......................................... 114
Overheating ........................................ 403
Engine compartment cover ............. 302
Engine coolant Capacity .................................................. 412
Checking............................................... 307
Preparing and checking
before winter...................................... 167
Engine coolant temperature
gauge ....................................................... 122
Engine immobilizer system ................. 70
Engine oil Capacity .................................................... 411
Checking............................................... 303
Preparing and checking
before winter...................................... 167
Engine oil maintenance data ........... 306
Event data recorder ............................ 360
E

449
Alphabetical index
ES350_U_(L/O_0708)
Outside rear view mirrorsAdjusting and folding ......................... 58
Mirror position memory ....................44
Outside temperature display............ 129
Overhead console .............................. 253
Overheating, Engine .......................... 403
Parking assist sensors ........................... 151
Parking brake ............................................121
Parking lights
Replacing light bulbs ....................... 345
Switch ........................................................ 132
Wattage ................................................... 417
PCS..............................................................160
Personal lights Switch ...................................................... 249
Power outlet ............................................262
Power steering fluid ..............................310
Power windows........................................ 60
Pre-collision system .............................. 160
Radar cruise control ............................. 142
Radiator.................................................... 309
Radio ................................................................ 192
Radio data system.................................. 193
RDS.............................................................. 193
Rear side marker lights Replacing light bulbs ....................... 343
Wattage ................................................... 417
Rear sunshade........................................266
Rear turn signal lights Replacing light bulbs ....................... 343
Wattage ................................................... 417
Rear window defogger ........................189 Replacing
Electronic key battery ...................... 332
Fuses.........................................................334
Light bulbs .............................................343
Reporting safety defects for U.S.A. owners .....................................440
Seat belts Adjusting the seat belt ..........................51
Automatic Locking Retractor......... 52
Child restraint system installation.............................................. 96
Cleaning and maintaining the seat belts .................................... 286
Emergency Locking Retractor ...... 52
How to wear your seat belt ............ 50
How your child should wear the seat belt .......................................... 53
Pregnant women, proper seat belt use ......................... 52
Reminder light .....................................364
Seat belt extenders .............................. 53
Seat belt pretensioners ........................51
Seat heaters ............................................ 263
Seat position memory ............................ 47
Seat ventilators ...................................... 263
Seating capacity ..................................... 166
Seats
Adjustment ............................................... 43
Adjustment precautions .................... 43
Child seats/child restraint system installation.............................. 96
Cleaning ................................................ 285
Driver’s seat position memory ....... 44
Front passenger seat position memory .................................................. 47
P
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454
ES350_U_(L/O_0708)
What to do if...
What to do if...
A tire puncturesP. 3 8 4If you have a flat tire
The engine does not start
P. 3 9 4If the engine will not start
P. 7 0Engine immobilizer system
P. 3 9 8If the electronic key does not operate
properly
The shift lever cannot be
moved outP. 3 9 6If 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 0 3If your vehicle overheats
The key is lostP. 3 9 7If you lose your keys
The battery runs outP. 4 0 0If 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 0 5If the vehicle becomes stuck