engine coolant Lexus CT200h 2015 Owner's Manual (in English)

CT200h_OM_OM76174U_(U)
812. Instrument cluster
2
Instrument cluster
Warning lights inform the driver of malfunctions in any of the vehicle’s systems.
Warning lights
*1
(U.S.A.)
Brake system warning light
(→ P. 5 2 7 )*1
(U.S.A.)
ABS warning light
(→ P. 5 2 8 )
*1
(Canada)
Brake system warning light
(→ P. 5 2 7 )*1
(Canada)
ABS warning light
(→ P. 5 2 8 )
*1Brake system warning light
(→ P. 5 2 7 )*1Electric power steering
system warning light
(→ P. 5 2 8 )
*1Charging system warning
light ( →P. 5 2 7 )*1, 2
(if equipped)
“PCS” warning light
(→ P. 5 2 8 )
*1Low engine oil pressure
warning light ( →P. 5 2 7 )*1Slip indicator light
(→ P. 5 2 8 )
*1
(U.S.A.)
Malfunction indicator lamp
(→ P. 5 2 7 )*1
(if equipped)
Automatic headlight
leveling system warning
light ( →P. 5 2 8 )
*1
(Canada)
Malfunction indicator lamp
(→ P. 5 2 7 )*1High coolant temperature
warning light ( →P. 5 2 8 )
Low fuel level warning light
( → P. 5 2 9 ) Open door warning light
(
→ P. 5 2 8 )
Seat belt reminder light
( → P. 5 2 9 )
*1Master warning light
(→ P. 5 2 9 )
*1SRS warning light
(→ P. 5 2 8 )*1Tire pressure warning light
(→ P. 5 2 9 )

CT200h_OM_OM76174U_(U)
872. Instrument cluster
2
Instrument cluster
■Engine speed
On hybrid vehicles, engine speed is precisely controlled in order to help improve fuel
efficiency and reduce exhaust emissions etc.
There are times when the engine speed that is displayed may differ even when vehicle
operation and driving conditions are the same.
■Outside temperature display
●In the following situations, the correct outside temperature may not be displayed, or the
display may take longer than normal to change.
• When stopped, or driving at low speeds (less than 12 mph [20 km/h])
• When the outside temperature has changed suddenly (at the entrance/exit of agarage, tunnel, etc.)
●When “--” or “E” is displayed, the system may be malfunctioning.
Take your vehicle to your Lexus dealer.
■Customization
Settings (e.g. on/off operation of the ECO lamp) can be changed.
(Customizable features: →P. 5 9 1 )
NOTICE
■To prevent damage to the engine and its components
●Do not let the indicator needle of the tachometer enter the red zone, which indicates
the maximum engine speed.
●The engine may be overheating if the high coolant temperature warning light comes
on or flashes. In this case, immediately stop the vehicle in a safe place, and check the
engine after it has cooled completely. ( →P. 565)

245
CT200h_OM_OM76174U_(U)4-6. Driving tips
4
Driving
Winter driving tips
●Use fluids that are appropriate to the prevailing outside temperatures.
•Engine oil
• Engine/power control unit coolant
•Washer fluid
●Have a service technician inspect the condition of the 12-volt battery.
●Have the vehicle fitted with four snow tires or purchase a set of tire chains for
the front tires.
Ensure that all tires are the same size and brand, and that chains match the size of the
tires.
Perform the following according to the driving conditions:
●Do not try to forcibly open a window or move a wiper that is frozen. Pour
warm water over the frozen area to melt the ice. Wipe away the water imme-
diately to prevent it from freezing.
●To ensure proper operation of the climate control system fan, remove any
snow that has accumulated on the air inlet vents in front of the windshield.
●Check for and remove any excess ice or snow that may have accumulated on
the exterior lights, vehicle’s roof, chassis, around the tires or on the brakes.
●Remove any snow or mud from the bottom of your shoes before getting in the
vehicle.
Carry out the necessary preparations and inspections before driving the vehi-
cle in winter. Always drive the vehicle in a manner appropriate to the prevail-
ing weather conditions.
Preparation for winter
Before driving the vehicle

467
CT200h_OM_OM76174U_(U)7-2. Maintenance
7
Maintenance and care
General maintenance
Listed below are the general maintenance items that should be performed at
the intervals specified in the “Warranty and Service Guide” or “Owner’s
Manual Supplement”. It is recommende
d that any problem you notice should
be brought to the attention of your Lex us dealer or qualified service shop for
advice.
Engine compartment
ItemsCheck points
Brake fluidIs the brake fluid at the correct level? ( →P. 4 8 2 )
Engine/power control unit
coolantIs the engine/power control unit coolant at the correct
level? ( →P. 4 8 0 )
Engine oilIs the engine oil at the correct level? ( →P. 477)
Exhaust systemThere should not be any fumes or strange sounds.
Radiator/condenserThe radiator and condenser should be free from
foreign objects. ( →P. 4 8 2 )
Wa s h e r f l u i dIs there sufficient washer fluid? ( →P. 4 8 3 )
Luggage compartment
ItemsCheck points
12-volt batteryCheck the connections. (→ P. 484)

471
CT200h_OM_OM76174U_(U)7-3. Do-it-yourself maintenance
7
Maintenance and care
Do-it-yourself service precautions
If you perform maintenance by yourself, be sure to follow the correct proce-
dure as given in these sections.
ItemsParts and tools
12-volt battery con-
dition (
→P. 484)•Grease
• Conventional wrench (for terminal clamp bolts)
Brake fluid level
(→ P. 4 8 2 )
• FMVSS No.116 DOT 3 or SAE J1703 brake fluid
• Rag or paper towel
• Funnel (used only for adding brake fluid)
Engine/power con-
trol unit coolant level
(→ P. 4 8 0 )
• “Toyota Super Long Life Coolant” or a similar high quality
ethylene glycol-based non-silicate, non-amine, non-nitrite
and non-borate coolant with long-life hybrid organic acid
technology
For the U.S.A.:
“Toyota Super Long Life Coolant” is pre-mixed with 50%
coolant and 50% deionized water.
For Canada:
“Toyota Super Long Life Coolant” is pre-mixed with 55%
coolant and 45% deionized water.
• Funnel (used only for adding coolant)
Engine oil level
(→ P. 477)
• “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses (→ P. 5 0 4 )• Fuse with same amperage rating as original
Light bulbs
(→ P. 5 0 7 )
• Bulb with same number and wattage rating as original
• Phillips-head screwdriver•Flathead screwdriver
•Wrench
Radiator and con-
denser ( →P. 4 8 2 )
Tire inflation pres-
sure ( →P. 4 9 5 )• Tire pressure gauge• Compressed air source
Wa s h e r f l u i d
(→ P. 4 8 3 )• Water or washer fluid containing antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid)

472
CT200h_OM_OM76174U_(U)7-3. Do-it-yourself maintenance
WA R N I N G
The engine compartment contains many mechan isms and fluids that may move suddenly,
become hot, or become electrically energize d. 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.
●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 flamma-
ble.
■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 automatically start to
run if the air conditioning is on and/or the coolant temperature is high. ( →P. 4 8 2 )
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting in
your eyes.
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear due to dirt
in the air.

476
CT200h_OM_OM76174U_(U)7-3. Do-it-yourself maintenance
Engine compartment
■12-volt battery
→
P. 4 8 4
Engine coolant reservoir
(→ P. 4 8 0 )
Engine oil level dipstick (→ P. 477)
Engine oil filler cap ( →P. 477)
Power control unit coolant reservoir (→ P. 4 8 0 ) Brake fluid reservoir (
→P. 4 8 2 )
Fuse box ( →P. 5 0 4 )
Radiator ( →P. 4 8 2 )
Condenser ( →P. 4 8 2 )
Electric cooling fans
Wa s h e r f l u i d t a n k ( →P. 4 8 3 )1
2
3
4
5
6
7
8
9
10

480
CT200h_OM_OM76174U_(U)7-3. Do-it-yourself maintenance
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. 565)
WA R N I N G
■Used engine oil
●Used engine oil contains potentially harm ful contaminants which may cause skin dis-
orders such as inflammation and skin cancer, so care should be taken to avoid pro-
longed and repeated contact. To remove used engine oil from your skin, wash
thoroughly with soap and water.
●Dispose of used oil and filter s only in a safe and acceptable manner. Do not dispose of
used oil and filters in household trash, in sewers or onto the ground. Call your Lexus
dealer, service station or auto parts store for information concerning recycling or dis-
posal.
●Do not leave used engine oil within the reach of children.
NOTICE
■To prevent serious engine damage
Check the oil level on a regular basis.
■When replacing the engine oil
●Be careful not to spill engine oil on the vehicle components.
●Avoid overfilling, or the engine could be damaged.
●Check the oil level on the dipstick every time you refill the vehicle.
●Be sure the engine oil filler cap is properly tightened.
Coolant
1
2
3

CT200h_OM_OM76174U_(U)
4817-3. Do-it-yourself maintenance
7
Maintenance and care
■Power control unit coolant reservoirReservoir cap
“FULL” line
“LOW” line
If the level is on or below the “LOW”
line, add coolant up to the “FULL”
line. ( →P. 565)
■Coolant selection
Only use “Toyota Super Long Life Coolant” or a similar high quality ethylene glycol
based non-silicate, non-amine, non-nitrite, and non-borate coolant with long-life hybrid
organic acid technology.
U.S.A.:
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deionized water.
(Minimum temperature: -31 °F [-35 °C])
Canada:
“Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deionized water.
(Minimum temperature: -44° F [-42°C])
For more details about coolant, contact your Lexus dealer.
■If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine/power control unit coolant reservoir caps,
drain cock and water pump.
If you cannot find a leak, have your Lexus dealer test the cap and check for leaks in the
cooling system.
1
2
3
WA R N I N G
■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.
NOTICE
■When adding coolant
Coolant is neither plain water nor straight antifreeze. The correct mixture of water and
antifreeze must be used to provide proper lubrication, corrosion protection and cool-
ing. Be sure to read the antifreeze or coolant label.
■If you spill coolant
Be sure to wash it off with water to prevent it from damaging parts or paint.

482
CT200h_OM_OM76174U_(U)7-3. Do-it-yourself maintenance
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 condi-
tion, have your vehicle inspected by your Lexus dealer.
■Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN” lines
on the tank.
■Adding fluid
Make sure to check the fluid type and prepare the necessary item.
■Brake fluid can absorb moisture from the air
Excess moisture in the brake fluid can cause a dangerous loss of braking efficiency. Use
only newly opened brake fluid.
Radiator and condenser
WA R N I N G
■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 automatically start to
run if the air conditioning is on and/or the coolant temperature is high. Be sure the
power switch is off when working near the
electric cooling fans or radiator grille.
Brake fluid
Fluid typeFMVSS No.116 DOT 3 or SAE J1703 brake fluid
ItemsClean funnel