cooling Lexus ES300h 2014 Instrument cluster / (OM33A60U) Owner's Guide

8237-2. Steps to take in an emergency
ES350_300h_OM_OM33A60U_(U)
7
When trouble arises
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 serious injury.
●Do not loosen the radiator cap or the coolant reservoir cap while the engine and
radiator are hot. High temperatur e steam or coolant could spray out.
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 additives.

824
ES350_300h_OM_OM33A60U_(U)
7-2. Steps to take in an emergency
If your vehicle overheats (hybrid vehicles)
■If the needle of the engine coolant temperature gauge enters the red
zone
Stop the vehicle in a safe place an d turn off the air conditioning sys-
tem, and then stop the hybrid system.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the hybrid system has cooled down sufficiently, inspect the
hoses and cooling system for 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. 9 5 )
enters the red zone or a loss of hybrid system power is experienced.
(For example, the vehicle speed does not increase.)
●“Hybrid System Overheat” ( P. 780) is shown on the multi-informa-
tion display.
●Steam comes out from under the hood.
Correction procedures
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8257-2. Steps to take in an emergency
ES350_300h_OM_OM33A60U_(U)
7
When trouble arises
The coolant level is satisfactory if it is between the “FULL” and
“LOW” line on the reservoir.
Reservoir
“FULL”
“LOW”
Radiator cap
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the hybrid system and turn the air conditioning system on to
check that the radiator cooling fa ns 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 sys-
tem on and off repeatedly. (The fans may not operate in freezing tempera-
tures.)
If the fans are not operating:
Stop the hybrid system immediately and contact your Lexus dealer.
If the fans are operating:
Have the vehicle inspected at the nearest Lexus dealer.
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8267-2. Steps to take in an emergency
ES350_300h_OM_OM33A60U_(U)
■If “Hybrid System Overheat” is shown on the multi-information dis-
play
Stop the vehicle in a safe place.
Stop the hybrid system and carefully lift the hood.
After the hybrid system has cooled down, inspect the hoses and radi-
ator core (radiator) for any leaks.Radiator
Cooling fans
If a large amount of coolant
leaks, immediately contact your
Lexus dealer.
The coolant level is satisfactory if it is between the “FULL” and
“LOW” line on the reservoir.
Reservoir
“FULL”
“LOW”
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
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8277-2. Steps to take in an emergency
ES350_300h_OM_OM33A60U_(U)
7
When trouble arises
Start the hybrid system and check for the multi-information display.
If the message does not disappear:
Stop the hybrid system and contact your Lexus dealer.
If the message is not displayed:
Have the vehicle inspected at the nearest Lexus dealer.
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.
●After the hybrid system has been turned off, check that the indicator on the
“POWER” switch and the “READY” indicator are off.
When the hybrid system is operating, the gasoline engine may automatically
start, or the cooling fan may suddenly oper ate even if the gasoline engine stops.
Do not touch or approach rotating parts such as the fan, which may lead to fin-
gers or clothing (especially a tie, a scarf or a muffler) getting caught, resulting in
serious injury.
●Do not loosen the radiator cap or the coolant reservoir cap while the hybrid sys-
tem and radiator are hot. High temper ature steam or coolant could spray out.
NOTICE
■When adding engine/power control unit coolant
Add coolant slowly after the hybrid syst em has cooled down sufficiently. Adding
cool coolant to a hot hybrid system too quickly can cause da mage to the hybrid
system.
■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 additives.
6

ES350_300h_OM_OM33A60U_(U)
8398-1. Specifications
8
Vehicle specifications
Gasoline vehicles
Hybrid vehicles
Cooling system
Capacity9.7 qt. (9.2 L, 8.1 Imp.qt.)
Coolant type
Use either of the following:
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene 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.
Capacity
Gasoline
engine 7.6 qt. (7.2 L, 6.3 Imp.qt.)
Po w e r
control unit3.4 qt. (3.2 L, 2.8 Imp.qt.)
Coolant type
Use either of the following:
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene 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.

900Alphabetical index
ES350_300h_OM_OM33A60U_(U)
CareAluminum wheels ............................. 659
Exterior................................................... 658
Interior .....................................................662
Seat belts ............................................... 663
Cargo capacity....................................... 198
Cargo hooks .......................................... 620
CD player
*...................................400, 512
Chains ....................................................... 332
Child restraint system Booster seats, definition .................... 57
Booster seats, installation.................. 67
Convertible seats, definition ............ 57
Convertible seats, installation ......... 64
Front passenger occupant classification system ........................ 50
Infant seats, definition .......................... 57
Infant seats, installation ....................... 64
Installing CRS with LATCH anchors ..................... 62
Installing CRS with seat belts .......... 64
Installing CRS with top tether strap .........................68 Child safety .................................................56
12-volt battery precautions ............................ 695, 816
Airbag precautions................................ 41
Child restraint system......................... 57
How your child should wear the seat belt .......................................... 34
Installing child restraints ...................... 61
Moon roof precautions ..................... 181
Power window lock switch............. 174
Power window precautions ........... 176
Rear door child-protectors ............ 143
Removed electronic key battery precautions .............. 720
Seat belt extender precautions ...........................................37
Seat belt precautions .......................... 60
Seat heater precautions ................. 629
Trunk precautions .............................. 150
Child-protectors .................................... 143
Cleaning Aluminum wheels ..............................659
Exterior .................................................. 658
Interior ..................................................... 662
Seat belts................................................ 663
Clock..........................................................623
Coat hooks ............................................. 635
Condenser................................................ 691
Console box ............................................. 617
Console box light ................................... 617
Consumption screen ..............................117
Cooling system Engine overheating ............................821
Hybrid system overheating .......... 824
Cruise control Cruise control ..................................... 248
Dynamic radar cruise control ..... 252
C