2016 Lexus IS200t cooling

5168-2. Steps to take in an emergency
IS350/300/200t_U (OM53D18U)
●The needle of the engine coolant temperature gauge (P. 81) enters the red
zone or a loss of engine power is experienced. (For example, the vehicle
speed does not increase.)
●“Engine Coolant High Temperature” is shown on the multi-information dis-
play.
●Steam comes out from under the hood.
Stop the vehicle in a safe place and tu rn 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.
If your vehicle overheats
The following may indicate that your vehicle is overheating.
Correction procedures
1
2
3
1
2

5188-2. Steps to take in an emergency
IS350/300/200t_U (OM53D18U)
Add coolant if necessary.
Water can be used in an emergency if coolant is unavailable.
Start the engine and turn the air conditioning 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 oper ating by checking the fan sound and air flow.
If it is difficult to check th ese, 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 your Lexus dealer.
If the fans are operating:
Have the vehicle inspected at the nearest Lexus dealer.
Check if “Engine Coolant High Temperat ure” is shown on the multi-informa-
tion display.
If the message does not disappear:
Stop the engine and contact your Lexus dealer.
If the message is not displayed:
Have the vehicle inspected at the nearest Lexus dealer.
5
Engine (IS350/IS300)Engine (IS200t)
Intercooler (IS200t only)
6
7
8

5198-2. Steps to take in an emergency
8
When trouble arises
IS350/300/200t_U (OM53D18U)
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 (especially a tie, a scarf or a muffler) away from the fans and
belts. Failure to do so may cause the hands or clothing to be caught, resulting in seri-
ous injury.
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 any coolant additive.
●IS350/IS300: Do not loosen the coolant res-
ervoir caps or radiator cap while the engine
and radiator are hot. (The radiator cap is
located under the engine cover.)
High temperature steam or coolant could
spray out.
●IS200t: Do not loosen the coolant reservoir
cap or intercooler reservoir cap while the
engine and radiator are hot.
High temperature steam or coolant could
spray out.

5319-1. Specifications
9
Vehicle specifications
IS350/300/200t_U (OM53D18U)
■Spark plug
Cooling system
Capacity
IS350/IS300 10.1 qt. (9.6 L, 8.4 Imp. qt.)
IS200t
Engine
8.2 qt. (7.8 L, 6.9 Imp. qt.)
Intercooler
3.2 qt. (3.0 L, 2.6 Imp. qt.)
Coolant type
Use either of the following: • “Toyota Super Long Life Coolant”
• Similar high-quality ethy lene glycol-based non-
silicate, non-amine, non-nitrite, and non-borate
coolant with long-life hybrid organic acid tech-
nology
Do not use plain water alone.
Ignition system
IS350/IS300IS200t
Make DENSO FK20HBR11 NGK DILFR7K9G
Gap0.043 in. (1.1 mm)0.035 in. (0.9 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
Electrical system
Battery
Open voltage at 68F
(20 C):12.6  12.8 V Fully charged
12.2  12.4 V Half charged
11.8
 12.0 V Discharged
(Check the voltage 20 minutes after the engine and all
lights are turned off.)
Charging rates5 A max.

583Alphabetical index
IS350/300/200t_U (OM53D18U)
Child safety ................................................ 53Airbag precautions .............................. 39
Battery precautions ............... 432, 515
Child restraint system ......................... 54
How your child should wear the seat belt .......................................... 32
Installing child restraints.................... 58
Moon roof precautions.....................147
Power window lock switch .............. 141
Power window precautions .......... 143
Rear door child-protectors ...........108
Removed electronic key battery precautions................ 451
Seat belt extender precautions ...........................................35
Seat belt precautions .......................... 57
Seat heater precautions..................376
Trunk precautions................................. 114
Child-protectors.................................... 108 Cleaning .......................................406, 409
Aluminum wheels .............................. 407
Exterior ...................................................406
Interior .....................................................409
Seat belts..................................................410
Clock......................................................... 387
Coat hooks ............................................... 391
Compass ..................................................397
Condenser ...............................................429
Console box ........................................... 382
Cooling system ..................................... 428 Engine overheating ............................516
Cruise control Cruise control ...................................... 198
Dynamic radar cruise control ..... 202
Cup holders............................................ 383
Current fuel consumption ....................87
Curtain shield airbags ............................ 37
Customizable features ...................... 552