2017 Lexus GS F cooling

601
7-2. Steps to take in an emergency
7
When trouble arises
GS350_200t_GS F_OM_OM30F83E_(EE)
WARNING
■Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flammable gas
that may be emitted from the battery:
●Make sure each jumper cable is connected to the correct terminal and that it is not
unintentionally in contact with any other than the intended terminal.
●Do not allow the other end of the jumper cable connected to the “+” terminal to come
into contact with any other parts or metal surfaces in the area, such as brackets or
unpainted metal.
●Do not allow the + and - clamps of the jumper cables to come into contact with each
other.
●Do not smoke, use matches, cigarette lighters or allow open flame near the battery.
■Battery precautions
The battery contains poisonous and corrosive acidic electrolyte, while related parts
contain lead and lead compounds. Observ e the following precautions when handling
the battery:
●When working with the battery, always wear safety glasses and take care not to allow
any battery fluids (acid) to come into contact with skin, clothing or the vehicle body.
●Do not lean over the battery.
●In the event that battery fluid comes into contact with the skin or eyes, immediately
wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medical attention can be
received.
●Always wash your hands after handling the battery support, terminals, and other bat-
tery-related parts.
●Do not allow children near the battery.
NOTICE
■When handling jumper cables
When connecting the jumper cables, ensure that they do not become entangled in the
cooling fans or engine drive belt.

6027-2. Steps to take in an emergency
GS350_200t_GS F_OM_OM30F83E_(EE)
If your vehicle overheats
●The needle of the engine coolant temperature gauge ( P. 108, 113) enters
the red zone or a loss of engine power is experienced. (For example, the vehi-
cle speed does not increase.)
● “Engine Coolant Temp High Stop in a Safe Place See Owner’s Manual” is shown
on the multi-information display.
● Steam is coming from under the hood.
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, imme-
diately contact any authorized Lexus
retailer or Lexus authorized repairer, or
any reliable repairer.
The following may indicate that your vehicle is overheating.
Correction procedures
1
2
3
1
2

605
7-2. Steps to take in an emergency
7
When trouble arises
GS350_200t_GS F_OM_OM30F83E_(EE)
Start the engine and turn the air conditio ning system on to check that the radi-
ator cooling fans operate and to check for coolant leaks from the radiator or
hoses.
The fans operate when the air conditioning system is turned on immediately after a
cold start. Confirm that the fans are operating by checking the fan sound and air flow.
If it is difficult to check these, turn the air conditioning system on and off repeatedly.
(The fans may not operate in freezing temperatures.)
If the fans are not operating:
Stop the engine immediately and contact any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer.
If the fans are operating:
Have the vehicle inspected at the nearest any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer.
■When adding engine coolant (GS350/GS200t)
Add coolant in accordance with the following procedure.
Remove caps A and B.
Add engine coolant through the inlet of cap A up to the “[AR/GR] B” line, and then
install cap A.
Add engine coolant through the inlet of cap B until it is full, and then install cap B.
GS200t only: When installing cap B, apply c oolant to the O-ring on the end of cap B.
Cap A
Cap B
“[AR/GR] B” line (Target fill line)
6
7
1
2
3
GS350 GS200t
1
2
3

607
7-2. Steps to take in an emergency
7
When trouble arises
GS350_200t_GS F_OM_OM30F83E_(EE)
NOTICE
■When adding engine coolant
Add coolant slowly after the engine has cool ed 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 any coolant additive.

625
8
8-1. Specifications
Vehicle specifications
GS350_200t_GS F_OM_OM30F83E_(EE)
Cooling system
Capacity
GS3509.4 L (9.9 qt., 8.3 Imp.qt.)
GS200t
Engine coolant
9.0 L (9.5 qt., 7.9 Imp.qt.)
Intercooler
2.6 L (2.7 qt., 2.3 Imp.qt.)
GS F11.3 L (11.9 qt., 9.9 Imp.qt.)
Coolant typeUse either of the following:

661
Alphabetical index
GS350_200t_GS F_OM_OM30F83E_(EE)
Clock ...............................................109, 429
Coat hooks .............................................. 434
Condenser ............................................. 466
Console box ........................................... 420
Console box light................................... 421
Coolant ..................................................... 464
Capacity ................................................. 625
Checking ............................................... 464
Preparing and checking before winter ....................................383
Cooling system ...................................... 464 Engine overheating ..........................602
Cruise control Cruise control .....................................355
Dynamic radar cruise control with full-speed range......................331
Dynamic radar cruise control ..... 343
Cup holders ............................................. 421
Curtain shield airbags ............................ 51
Customizable features ....................... 634
DAB (Digital Audio Broadcast) *
Daytime running light system ......... 264
Defogger Front windshield ................................. 402
Outside rear view mirrors.............402
Rear window ........................................ 402
Differential Front differential.................................. 627
Rear differential ................................... 627 Digital Audio Broadcast (DAB)
*
Dimensions ............................................... 612
Display 12.3-inch display ................................ 394
Drive information.......................122, 130
Dynamic radar cruise control
with full-speed range ..................... 331
Dynamic radar cruise control ..... 343
LDA (Lane Departure Alert with steering control)..................... 321
LKA (Lane-Keeping Assist) .......... 312
Multi-information display.........121, 129
Trip information ...........................108, 113
Warning message ............................ 524
Do-it-yourself maintenance ............. 449
Door courtesy lights Location ................................................... 416
Wattage ................................................... 631
Door lock Doors......................................................... 159
Smart entry & start system ............. 173
Wireless remote control ................. 154
Doors...........................................................159 Automatic door locking and
unlocking system ............................. 163
Door glasses.......................................... 214
Door lock ................................................ 162
Open door warning buzzer .......... 174
Open door warning light .............. 520
Outside rear view mirrors ................ 211
Rear door child-protector ............. 163
D
* : Refer to the “NAVIGATION AND MULTIMEDIA
SYSTEM OWNER’S MANUAL”.