2014 Lexus GS350 engine overheat

205
GS350_OM_OM30D41U_(U)4-3. Operating the lights and wipers
4
Driving
Headlight cleaner switch
Press the switch to clean the head-
lights.
■The headlight cleaners can be operated when
The engine switch is in IGNITION ON mode and the headlight switch is turned on.
■Windshield washer linked operation
When the windshield washer is operated with the engine switch in IGNITION ON
mode and the headlights on, the headlight cleaners will operate once. ( P. 1 9 8 )
: If equipped
Washer fluid can be sprayed on the headlights.
NOTICE
■When the washer fluid tank is empty
Do not press the switch continually as the washer fluid pump may overheat.

274
GS350_OM_OM30D41U_(U)
4-5. Using the driving support systems
■Reactivation of the TRAC system linked to vehicle speed
When only the TRAC system is turned off, the TRAC system will turn on when vehi-
cle speed increases. However, when both TRAC/VSC systems are turned off, the
systems will not turn on even when vehicle speed increases.
■Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the system from overheat-
ing when there is frequent steering input ov er an extended period of time. The steer-
ing wheel may feel heavy as a result.
* Should this occur, refrain from excessive
steering input or stop the vehicle and tu rn the engine off. The EPS system should
return to normal within 10 minutes.
*: If the LKA (Lane-Keeping Assist) system cannot operate in this case, a warning
message will be shown on the multi-information display.

691
GS350_OM_OM30D41U_(U)
When trouble arises7
7-1. Essential information Emergency flashers................... 692
If your vehicle has to be stopped in an emergency .... 693 7-2. Steps to take in an emergency
If your vehicle needs to be towed ................................ 694
If you think something is wrong ................ 700
Fuel pump shut off system ........701
If a warning light turns on or a warning buzzer sounds ..... 702
If a warning message is displayed .................................. 712
If you have a flat tire................... 736
If the engine will not start ......... 749
If the shift lever cannot be shifted from P ....................... 751
If the parking brake cannot be released .................................752
If the electronic key does not operate properly ..................... 754
If the vehicle battery is discharged ..............................757
If your vehicle overheats ........... 761
If the vehicle becomes stuck .............................................. 764

761
GS350_OM_OM30D41U_(U)
7
When trouble arises
7-2. Steps to take in an emergency
If your vehicle overheats
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 your Lexus
dealer.
The following may indicate that your vehicle is overheating.
●The needle of the engine coolant temperature gauge ( P. 81) enters
the red zone or a loss of engine power is expe rienced. (For example,
the vehicle speed does not increase.)
●Steam is coming from under the hood.
Correction procedures
1
2
3
1
2

830Alphabetical index
GS350_OM_OM30D41U_(U)
Care ................................................. 608, 612Aluminum wheels ............................. 609
Exterior................................................... 608
Interior ...................................................... 612
Seat belts ................................................. 613
Cargo capacity........................................170
Cargo hooks ............................................ 571
CD player .................................................. 421
Chains ....................................................... 306
Child restraint system............................ 55 Booster seats, definition ....................55
Booster seats, installation..................65
Convertible seats, definition ............55
Convertible seats, installation ......... 62
Front passenger occupant classification system ......................... 47
Infant seats, definition ..........................55
Infant seats, installation ....................... 62
Installing CRS with LATCH anchors .....................60
Installing CRS with seat belts .......... 62
Installing CRS with top tether strap .........................66 Child safety .................................................54
Airbag precautions.............................. 39
Battery precautions ............. 639, 760
Child restraint system......................... 55
How your child should wear the seat belt ................................... 31, 32
Installing child restraints .................... 59
Moon roof precautions ....................153
Power window lock switch............. 147
Power window precautions ...........149
Rear door child-protectors ............120
Removed electronic key battery precautions ............. 660
Seat belt comfort guide ....................... 31
Seat belt extender precautions .......................................... 35
Seat belt precautions .......................... 58
Seat heater precautions .................583
Trunk precautions ............................... 126
Child-protectors .................................... 120
Cleaning ........................................ 608, 612 Aluminum wheels ............................. 609
Exterior .................................................. 608
Interior ....................................................... 612
Seat belts..................................................613
Clock..........................................................575
Coat hooks ............................................. 590
Condenser.............................................. 636
Console box ............................................567
Console box light ..................................567
Cooling system Engine overheating ............................ 761
Cruise control Cruise control .........................................211
Dynamic radar cruise control ....... 215
C

832Alphabetical index
GS350_OM_OM30D41U_(U)
Emergency, in case ofIf a warning buzzer sounds..................................................702
If a warning light turns on...............702
If a warning message is displayed .......................................... 712
If the electronic key does not operate properly ........754
If the engine will not start................ 749
If the parking brake cannot be released ........................ 752
If the shift lever cannot be shifted from P ............. 751
If the vehicle battery is discharged ......................................... 757
If you have a flat tire ..........................736
If you think something is wrong.............................................. 700
If your vehicle becomes stuck ...................................................... 764
If your vehicle has to be stopped in an emergency ......... 693
If your vehicle needs to be towed ...................................... 694
If your vehicle overheats ..................761
Emergency flashers ............................. 692
Engine Accessory mode..................................174
Compartment......................................629
Engine switch .........................................173
Hood ........................................................626
How to start the engine ....................173
Identification number .......................769
If the engine will not start................ 749
Ignition switch (engine switch) ..................................173
Overheating ...........................................761 Engine compartment cover............. 630
Engine coolant ...................................... 634
Capacity..................................................772
Checking ............................................... 634
Preparing and checking before winter ....................................304
Engine coolant temperature gauge .......................................................... 81
Engine immobilizer system ..................70
Engine oil ................................................... 631 Capacity................................................. 770
Checking .................................................631
Oil level warning message ............. 721
Oil pressure warning message............................. 713
Preparing and checking before winter ....................................304
Engine oil maintenance data ............. 616
Engine switch ........................................... 173
Enhanced VSC ......................................269
EPS (Electric Power Steering) ..............270 Function .................................................. 270
Warning light ....................................... 703
Warning message............................... 717
Event data recorder (EDR)................... 10

836Alphabetical index
GS350_OM_OM30D41U_(U)
MaintenanceDo-it-yourself maintenance..........623
General maintenance ...................... 618
Maintenance data ............................. 768
Maintenance requirements............ 615
Malfunction indicator lamp .............. 703
Master warning light ........................... 705
Meter ..............................................................81 Head-up display.................................... 92
Indicators................................................... 79
Instrument panel light control ......... 82
Meters.......................................................... 81
Multi-information display ..................84
Warning lights ........................................ 77
Micro dust and pollen filter .............. 363
Mirrors Inside rear view mirror ......................142
Outside rear view mirror defoggers ........................................... 374
Outside rear view mirrors .............. 144
Vanity mirrors ......................................574
Mobile Assistant
*............................... 351
Moon roof................................................. 150 Door lock linked moon roof operation ....................... 151
Jam protection function ..................... 151
Operation ............................................... 150
Warning message .............................720
MP3 disc.................................................. 423 Multi-information display..................... 84
Dynamic radar cruise control ....... 215
Lane-Keeping Assist ....................... 234
Language..................................................88
Switching the display .......................... 85
Trip information ..................................... 85
Warning message............................... 712
Navigation system
*
Noise from under vehicle ........................8
Odometer .................................................... 81
Oil Engine oil ............................................... 770
Front differential oil ............................774
Rear differential oil .............................774
Opener Hood........................................................ 626
Trunk .......................................................... 123
Outer foot lights Outer foot lights ...................................561
Wattage .................................................. 777
Outside rear view mirrors .................. 144 Adjusting and folding ........................ 144
Blind spot monitor ............................288
Linked mirror function when reversing..................................145
Mirror position memory .................. 132
Outside rear view mirror defoggers............................ 374
Outside temperature display ............. 85
Overheating, Engine ............................ 761
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