2013 Lexus ES300h radiator

8177-2. Steps to take in an emergency
ES350 300h_OM_OM33A01U_(U)
7
When trouble arises
The coolant level is satisfactory
if it is between the “FULL” and
“LOW” line on the reservoir.Reservoir cap
“FULL”
“LOW”
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 fan operates and to check for coolant
leaks from the radiator or hoses.
The fan operates when the air conditioning system is turned on immediately
after a cold start. Confirm that the fan is 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 fan may not operate in freezing temperatures.)
If the fan is not operating:
Stop the hybrid system immediately and contact your Lexus dealer.
If the fan is operating:
Have the vehicle inspected at the nearest Lexus dealer.
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8187-2. Steps to take in an emergency
ES350 300h_OM_OM33A01U_(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 radiator core (radia-
tor) for any leaks.
The coolant level is satisfactory
if it is between the “FULL” and
“LOW” line on the reservoir.Reservoir cap
“FULL”
“LOW”
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the hybrid system and check fo r 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.
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8197-2. Steps to take in an emergency
ES350 300h_OM_OM33A01U_(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.
●Check that the indicator on the “POWER ” switch and the “READY” indicator are
off.
●On hybrid vehicles, the gasoline engine may automatically start, or the cooling
fan may suddenly operate even if the gasoline engine stops. Do not touch or
approach rotating parts such as the fan, which may lead to fingers or clothing
(especially a tie, a scarf or a muffler) getting caught, resulting in serious injury.
●Do not loosen the radiator cap while th e hybrid system and radiator are hot.
High temperature 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 commercially available coolant additives.

898Alphabetical index
ES350 300h_OM_OM33A01U_(U)
Parking assist sensors (intuitive parking assist) .................... 271
Parking brake Operation .............................................. 222
Parking brake engaged warning buzzer .............................. 768
Parking brake engaged warning message .......................... 768
Parking lights Light switch ........................................... 224
Replacing light bulbs ........................ 736
Welcome light illumination cont rol ..........................123
PCS (Pre-Collision System) Function ................................................. 306
PCS OFF switch ................................307
Warning light .......................................753
Warning message ........................ 763, 771, 776
Personal lights........................................ 604
Power control unit ...................................74
Power control unit coolant Capacity .................................................. 831
Checking................................................. 681
Preparing and checking before winter ....................................326
Radiator ................................................. 683
Power easy access system .................156
Power outlets ...........................................616
Power steering (Electric Power
Steering system) ................................ 299 Warning light .......................................753
Warning message ............................. 764
“Power” switch....................................... 204 Power trunk opener and closer ....... 144
Power windows
Door lock linked window operation ........................... 172
Jam protection function...................... 171
Operation................................................170
Window lock switch ..........................170
Pre-Collision System (PCS) Function ..................................................306
PCS OFF switch ................................ 307
Warning light ....................................... 753
Warning message.........................763, 771, 776
Radar cruise control (dynamic radar cruise control)........................ 248
Radiator.................................................... 683
Radio
*........................................... 379, 496
RBDS (Radio Broadcast Data Systems)
*......................382, 499
RCTA (Rear Cross Traffic Alert).......................................... 313
Rear personal lights ............................ 604
Rear side marker lights Light switch........................................... 224
Replacing light bulbs ....................... 736
Welcome light illumination control .......................... 123
Rear door sunshades...........................623
Rear sunshade Operation.............................................. 623
Reverse operation feature ............ 624
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