radiator Lexus CT200h 2012 Owner's Manual (in English)

489
4-3. Do-it-yourself maintenance
4
Maintenance and care
CT200h_OM_OM76067E_(EE)
ItemsParts and tools
Engine oil level (P. 498)
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel
• Funnel (used only for adding
engine oil)
Fuses (P. 532)• Fuse with same amperage rating
as original
Light bulbs (P. 546)
• Bulb with same number and
wattage rating as original
• Phillips-head screwdriver
• Flathead screwdriver
•Wrench
Radiator and condenser (P. 5 0 6)
Tire inflation pressure (P. 519)• Tire pressure gauge
• Compressed air source
Washer fluid (P. 507)
• Water or washer fluid contain-
ing antifreeze (for winter use)
• Funnel (used only for adding
water or washer fluid)

490
4-3. Do-it-yourself maintenance
CT200h_OM_OM76067E_(EE)
CAUTION
The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become electrically energized. To avoid death
or serious injury, observe the following precautions.
When working on the engine compartment
Make sure that the indicator on the “POWER” switch and the “READY”
indicator are both off.
Keep hands, clothing and tools away from the moving fan and engine
drive belt.
Be careful not to touch the engine, power control unit, radiator, exhaust
manifold, etc. right after driving as they may be hot. Oil and other fluids
may also be hot.
Do not leave anything that may burn easily, such as paper and rags, in the
engine compartment.
Do not smoke, cause sparks or expose an open flame to fuel. Fuel fumes
are flammable.
Take care because brake fluid can harm your hands or eyes and damage
painted surfaces. If fluid gets on your hands or in your eyes, flush the
affected area with clean water immediately.
If you still experience discomfort, consult a doctor.
When working near the electric cooling fans or radiator grille
Be sure the “POWER” switch is off.
With the “POWER” switch in ON mode, the electric cooling fans may auto-
matically start to run if the air conditioning is on and/or the coolant tempera-
ture is high. (P. 506)
Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc.
from getting in your eyes.

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)

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.

506
4-3. Do-it-yourself maintenance
CT200h_OM_OM76067E_(EE)
Radiator and condenser
Check the radiator and condenser and clear away any foreign
objects.
If either of the above parts is extremely dirty or you are not sure of
their condition, have your vehicle inspected by any authorized
Lexus dealer or repairer, or another duly qualified and equipped
professional.
CAUTION
When the hybrid system is hot
Do not touch the radiator or condenser as they may be hot and cause serious
injuries, such as burns.
When the electric cooling fans are operating
Do not touch the engine compartment.
The electric cooling fans may keep rotating for about 3 minutes even after
the “POWER” switch is off.
With the “POWER” switch in ON mode, the electric cooling fans may auto-
matically start to run if the air conditioning is on and/or the coolant tempera-
ture is high. Be sure the “POWER” switch is off when working near the
electric cooling fans or radiator grille.

5
639
5-2. Steps to take in an emergency
When trouble arises
CT200h_OM_OM76067E_(EE)
If your vehicle overheats
Correction procedures
If the high coolant temperature warning light comes on or
flashes
Stop the vehicle in a safe place and turn off the air condi-
tioning system, 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 radiator
core (radiator) for any leaks.
Radiator
Cooling fan
If a large amount of coolant
leaks, immediately contact any
authorized Lexus dealer or
repairer, or another duly quali-
fied and equipped professional.
The following may indicate that your vehicle is overheating:
The high coolant temperature warning light (P. 572) comes
on or flashes, or a loss of hybrid system power is experienced.
(For example, the vehicle speed does not increase.)
“HYBRID SYSTEM OVERHEAT” (P. 586) is shown on
the multi-information display.
Steam comes out from under the hood.
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

5
641
5-2. Steps to take in an emergency
When trouble arises
CT200h_OM_OM76067E_(EE)If the fan is not operating:
Stop the hybrid system immediately and contact any
authorized Lexus dealer or repairer, or another duly qual-
ified and equipped professional.
If the fan is operating:
Have the vehicle inspected at the nearest any authorized
Lexus dealer or repairer, or another duly qualified and
equipped professional.
If “HYBRID SYSTEM OVERHEAT” is shown on the multi-
information display
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 (radiator) for
any leaks.
Radiator
Cooling fan
If a large amount of coolant
leaks, immediately contact any
authorized Lexus dealer or
repairer, or another duly quali-
fied and equipped professional.
STEP7
STEP1
STEP2
STEP3

699
Alphabetical index
CT200h_OM_OM76067E_(EE)
Outside rear view mirrors
Adjusting and folding ...........118
Driving position memory .....102
Mirror position memory .......102
Outside rear view mirror
defogger switch
*....................330
Outside temperature display ......219
Overhead console ......................453
Overheating, Engine ..................639
Overheating, Hybrid system......639
Parking brake ............................217
PCS ............................................299
Personal lights
Switch ...................................446
Wattage .................................664
Pollen removal mode.................323
Power outlet ..............................460
“POWER” switch ......................198
Power windows .........................123
Pre-Crash Safety system ...........299
Push-button start system .............79Radar cruise control system ..... 255
Radiator .................................... 506
Radio ....................................... 335
Radio data system..................... 338
RDS .......................................... 338
Rear turn signal lights
Replacing light bulbs ........... 546
Wattage ................................ 664
Rear view monitor system ........ 282
Rear window defogger
*........... 330
Rear window wiper and
washer .................................... 247
Remote Touch
*
Replacing
Electronic key battery .......... 527
Fuses .................................... 532
Light bulbs ........................... 546
Tires ..................................... 599
P
R
*: For vehicles with a navigation system, refer to
the “Navigation System Owner’s Manual”.