engine overheat Lexus GS350 2013 User Guide

570
GS350_U (OM30C34U)
5-7. Other interior features
CAUTION
■Burns
●Use caution when seating the following persons in a seat with the seat heater on
to avoid the possibility of burns:
• 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.)
●Do not cover the seat with anything when using the seat heater.
Using the seat heater with a blanket or cushion increases the temperature of the
seat and may lead to overheating.
●Do not use seat heater more than necessary. Doing so may cause minor burns or
overheating.
NOTICE
■To prevent damage to the seat heaters/seat ventilators
Do not put heavy objects that have an uneven surface on the seat and do not stick
sharp objects (needles, nails, etc.) into the seat.
■To prevent battery discharge
Turn the seat heaters/seat ventilators off when the engine is off.

675
GS350_U (OM30C34U)
When trouble arises7
7-1. Essential information Emergency flashers....................676
If your vehicle has to be stopped in an emergency .... 677 7-2. Steps to take in an emergency
If your vehicle needs to be towed ................................ 678
If you think something is wrong ................684
Fuel pump shut off system ......685
If a warning light turns on or a warning buzzer sounds .....686
If a warning message is displayed .................................697
If you have a flat tire................... 722
If the engine will not start ........ 735
If the shift lever cannot be shifted from P ......................737
If the parking brake cannot be released ................................ 738
If the electronic key does not operate properly ......................740
If the vehicle battery is discharged ..............................743
If your vehicle overheats .......... 747
If the vehicle becomes stuck .............................................. 749

7147-2. Steps to take in an emergency
GS350_U (OM30C34U)
*: Refer to the separate “Scheduled Maintenance” or “Owner’s Manual Supple-ment” for the maintenance interval applicable to your vehicle.
Warning messageDetailsCorrection procedure
Indicates that the tire
position information can-
not be recognized
Drive for a short while
and check if the display
updates. If the radio wave condi-
tions improve, the dis-
play may return to
normal. If the tire pres-
sure is still not dis-
played after driving for
several minutes, stop
the vehicle in a safe
place, turn the engine
switch off then on
again, and start driving.
If the tire pressure is still
not displayed even
after repeating this sev-
eral times, have the
vehicle inspected at
your Lexus dealer.
Indicates that the pre-col-
lision system is not cur-
rently functional because
the grille cover or the
sensor is dirtyThis message also
appears when the pre-
collision system is not
functional due to over-
heating.
Check the grille cover
and the sensor and clean
them if they are dirty.In case of overheating,
the system will become
functional once the sys-
tem cools down.
(If equipped)
(Flashes)
(If equipped)

747
GS350_U (OM30C34U)
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.
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 subsides 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 cooling fan is operating.
If the fan is operating:
Wait until the temperature of the engine (shown on the instrument
panel) begins to fall and then stop the engine.
If the fan is not operating:
Stop the engine immediately and call your 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. 6 1 6
Add engine coolant if necessary.
Water can be used in an emergency if
engine coolant is unavailable.
(→ P. 7 5 6 )
Have the vehicle inspected at the nearest Lexus dealer as soon as possi-
ble.
1
2
3
4
5

7487-2. Steps to take in an emergency
GS350_U (OM30C34U)
■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 comes out from under the hood.
CAUTION
■When inspecting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
●If steam is seen coming from under the hood, do not open the hood until the
steam has subsided. The engine compartment may be very hot.
●Keep hands and clothing away from the fans, etc. while the engine is operating.
NOTICE
■When adding engine coolant
Add coolant slowly after the engine has cooled down sufficiently. Adding cool
coolant to a hot engine too quickly can cause damage to the engine.
■To prevent damage to the cooling system
Observe the following precautions:
●Avoid contaminating the coolant with foreign matter (such as sand or dust etc.).
●Do not use commercially available coolant additives.
●Do not loosen the radiator cap while the
engine and radiator are hot.
High temperature steam or coolant could
spray out.

812Alphabetical index
GS350_U (OM30C34U)
Care ............................................... 594, 598Aluminum wheels ............................. 595
Exterior................................................... 594
Interior .................................................... 598
Seat belts ............................................... 599
Cargo capacity....................................... 168
Cargo hooks ..........................................558
CD player ..................................................412
Chains .......................................................300
Child restraint system............................ 53 Booster seats, definition ....................53
Booster seats, installation.................. 63
Convertible seats, definition ............53
Convertible seats, installation .........60
Front passenger occupant
classification system ......................... 47
Infant seats, definition ..........................53
Infant seats, installation .......................60
Installing CRS
with LATCH anchors .................... 58
Installing CRS with seat belts ..........60
Installing CRS with top tether strap .........................64 Child safety .................................................52
Airbag precautions.............................. 39
Battery precautions .............. 626, 746
Child restraint system......................... 53
How your child should wear the seat belt ................................... 31, 32
Installing child restraints .................... 57
Moon roof precautions ..................... 151
Power window lock switch.............145
Power window precautions ........... 147
Rear door child-protectors ............. 118
Removed electronic key battery precautions .............. 647
Seat belt comfort guide ....................... 31
Seat belt extender precautions .......................................... 35
Seat belt precautions .......................... 56
Seat heater precautions .................570
Trunk precautions ............................... 124
Child-protectors ..................................... 118
Cleaning .......................................594, 598 Aluminum wheels ..............................595
Exterior ...................................................594
Interior .................................................... 598
Seat belts................................................599
Clock......................................................... 562
Coat hooks ..............................................576
Condenser...............................................622
Console box........................................... 554
Console box light ................................. 554
Cooling system Engine overheating ...........................747
Cruise control Cruise control .....................................209
Dynamic radar crui se control ....... 213
C

814Alphabetical index
GS350_U (OM30C34U)
Emergency, in case ofIf the electronic key
does not operate properly ........740
If the engine will not start................ 735
If the parking brake cannot be released........................738
If the shift lever cannot be shifted from P ............ 737
If the vehicle battery is discharged ......................................... 743
If the warning buzzer sounds................................................. 686
If the warning light turns on.......... 686
If the warning message is displayed ........................................697
If you have a flat tire .......................... 722
If you think something is wrong.............................................. 684
If your vehicle becomes stuck ...................................................... 749
If your vehicle needs to be towed ...................................... 678
If your vehicle overheats ................ 747
Emergency flashers ............................. 676
Engine Accessory mode.................................. 172
Compartment ....................................... 615
Engine switch .......................................... 171
Hood ......................................................... 612
How to start the engine ..................... 171
Identification number .......................753
If the engine will not start................ 735
Ignition switch (engine switch) ................................... 171
Overheating ......................................... 747 Engine compartment cover............... 616
Engine coolant ...................................... 620
Capacity ................................................. 756
Checking ............................................... 620
Preparing and checking before winter ....................................298
Engine coolant temperature gauge ......................................................... 79
Engine immobilizer system ................. 68
Engine oil ................................................... 617 Capacity ................................................. 754
Checking ................................................. 617
Oil level warning message ........... 706
Oil pressure warning message.......................... 698
Preparing and checking
before winter ....................................298
Engine oil maintenance data ........... 602
Engine switch............................................. 171
Enhanced VSC ..................................... 268
EPS (Electronic Power Steering) .........269
Function .................................................. 269
Warning light ....................................... 687
Warning message............................. 702
Event data recorder (EDR)................... 10

818Alphabetical index
GS350_U (OM30C34U)
MaintenanceDo-it-yourself maintenance......... 609
General maintenance .................... 604
Maintenance data .............................. 752
Maintenance requirements............ 601
Malfunction indicator lamp .............. 687
Master warning light ........................... 689
Meter .............................................................79 Head-up display....................................90
Indicators................................................... 77
Instrument panel light control ........ 80
Meters......................................................... 79
Multi-information display .................. 82
Warning lights ........................................ 75
Micro dust and pollen filter .............. 355
Mirrors Inside rear view mirror ..................... 140
Outside rear view mirror defoggers .......................................... 365
Outside rear view mirrors ...............142
Vanity mirrors ....................................... 561
Moon roof................................................. 148 Door lock linked
moon roof operation ..................... 149
Jam protection function ................... 149
Operation ............................................... 148
Warning message ............................ 705
MP3 disc ....................................................414 Multi-information display..................... 82
Dynamic radar crui se control ....... 213
Lane-Keeping Assist ....................... 232
Language.................................................. 86
Switching the display .......................... 83
Trip information ..................................... 83
Warning message............................. 697
Navigation system
*
Noise from under vehicle ........................8
Odometer ................................................... 79
Oil Engine oil ............................................... 754
Front differential oil ........................... 758
Rear differential oil ............................ 758
Opener Hood.......................................................... 612
Trunk ............................................................121
Outer foot lights
Outer foot lights .................................548
Wattage ................................................... 761
Outside rear view mirrors.................. 142 Adjusting and folding ........................ 142
Blind spot monitor ............................ 287
Linked mirror function
when reversing.................................. 143
Mirror position memory ................. 130
Outside rear view mirror defoggers............................ 365
Outside temperature display ............. 83
Overheating, Engine ........................... 747
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