coolant reservoir Lexus CT200h 2012 Owner's Manual (in English)

496
4-3. Do-it-yourself maintenance
CT200h_OM_OM76067E_(EE)
Engine compartment
12-volt battery
P. 5 0 8
Engine coolant reservoir
(P. 503)
Engine oil level dipstick
(P. 498)
Engine oil filler cap (P.
498)
Power control unit coolantFuse box (P. 532)
Radiator (P. 506)
Condenser (P. 506)
Electric cooling fans
Washer fluid tank (P.
507)

503
4-3. Do-it-yourself maintenance
4
Maintenance and care
CT200h_OM_OM76067E_(EE)
Coolant
The coolant level is satisfactory if it is between the “FULL” and
“LOW” lines on the reservoir when the hybrid system is cold.
Engine coolant reservoir
Reservoir cap
“FULL” line
“LOW” line
If the level is on or below the
“LOW” line, add coolant up to
the “FULL” line. (P. 657)
Power control unit coolant reservoir
Reservoir cap
“FULL” line
“LOW” line
If the level is on or below the
“LOW” line, add coolant up to
the “FULL” line. (P. 657)

504
4-3. Do-it-yourself maintenance
CT200h_OM_OM76067E_(EE)
Coolant selection
Only use “Toyota Super Long Life Coolant” or a similar high quality eth-
ylene glycol based non-silicate, non-amine, non-nitrite, and non-borate
coolant with long-life hybrid organic acid technology.
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50%
deionized water. (Minimum temperature: -35C [-31F])
For more details about coolant, contact any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine/power control unit coolant reser-
voir caps, drain cock and water pump.
If you cannot find a leak, have any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional test the cap and check for
leaks in the cooling system.
CAUTION
When the hybrid system is hot
Do not remove the engine/power control unit coolant reservoir caps.
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing serious injuries, such as burns.

548
4-3. Do-it-yourself maintenance
CT200h_OM_OM76067E_(EE)
Replacing light bulbs
Headlight low beams (halogen headlights)
For the right side only: Remove
the securing clips and unclip
the engine coolant reservoir
hose. Then lift up the air
cleaner inlet duct.
Unplug the connector while
pressing the lock release.
STEP1
STEP2

550
4-3. Do-it-yourself maintenance
CT200h_OM_OM76067E_(EE)Headlight high beams (LED headlights)
For the right side only: Remove the securing clips and
unclip the engine coolant reservoir hose. Then lift up the air
cleaner inlet duct. (P. 548)
Turn the cover counterclock-
wise and remove it.
Turn the bulb base counter-
clockwise.
Unplug the connector while
pulling the lock release.
STEP1
STEP2
STEP3
STEP4

552
4-3. Do-it-yourself maintenance
CT200h_OM_OM76067E_(EE)Front turn signal lights (halogen headlights)
For the right side only: Remove the securing clips and
unclip the engine coolant reservoir hose. Then lift up the air
cleaner inlet duct. (P. 548)
Turn the bulb base counter-
clockwise.
Remove the light bulb.
STEP1
STEP2
STEP3

640
5-2. Steps to take in an emergency
CT200h_OM_OM76067E_(EE)The coolant level is satisfactory
if it is between the “FULL” and
“LOW” lines on the reservoir.
Reservoir
“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.)
STEP4
STEP5
STEP6

642
5-2. Steps to take in an emergency
CT200h_OM_OM76067E_(EE)The coolant level is satisfactory
if it is between the “FULL” and
“LOW” lines on the reservoir.
Reservoir
“FULL”
“LOW”
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the hybrid system and check for the multi-information
display.
If the message does not disappear:
Stop the hybrid system and contact any authorized Lexus
dealer or repairer, or another duly qualified and equipped
professional.
If the message is not displayed:
Have the vehicle inspected at the nearest any authorized
Lexus dealer or repairer, or another duly qualified and
equipped professional.
STEP4
STEP5
STEP6

5
643
5-2. Steps to take in an emergency
When trouble arises
CT200h_OM_OM76067E_(EE)
CAUTION
To prevent an accident or injury when inspecting under the hood of your
vehicle
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, caus-
ing serious injuries such as burns.
Check that the indicator on the “POWER” switch and the “READY” indi-
cator 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 coolant reservoir cap while the hybrid system and radi-
ator are hot.
Serious injury, such as burns, may result from hot coolant and steam
released under pressure.
NOTICE
When adding engine/power control unit coolant
Wait until the hybrid system has cooled down before adding engine/power
control unit coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot hybrid sys-
tem too quickly can cause damage 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.