Page 505 of 688

5017-3. Do-it-yourself maintenance
CT200h_OM_OM76102E_(EE)
7
Maintenance and care
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. 628)
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. 628)
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.
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deion-
ized water. (Minimum temperature: -35C [-31F])
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 reservoir
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.
Coolant
1
2
3
1
2
3
Page 506 of 688

5027-3. Do-it-yourself maintenance
CT200h_OM_OM76102E_(EE)
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.
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 pro-
tection and cooling. 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.
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 automati-
cally 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.
Page 538 of 688
5347-3. Do-it-yourself maintenance
CT200h_OM_OM76102E_(EE)
Checking and replacing fuses
Turn the power switch off.
Open the fuse box cover.
Engine compartment
Push the tab in and lift the lid off.
Left side instrument panel (left-hand drive vehicles)
Remove the lid.
If any of the electrical components do not operate, a fuse may have
blown. If this happens, check and replace the fuses as necessary.
1
2
Page 542 of 688
5387-3. Do-it-yourself maintenance
CT200h_OM_OM76102E_(EE)
Light bulbs
Check the wattage of the light bulb to be replaced. (P. 647)
P. 4 9 6
Front
Vehicles with halogen headlights
You may replace the following bulbs by yourself. The difficulty level of
replacement varies depending on the bulb. As there is a danger that com-
ponents may be damaged, we recommend that replacement is carried out
by any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
Preparing for light bulb replacement
Removing the engine compartment cover
Bulb locations
Front turn signal light
Halogen front fog light
(if equipped)Headlight low beam
Headlight high beam1
2
3
4
Page 574 of 688

5708-2. Steps to take in an emergency
CT200h_OM_OM76102E_(EE)
Slip indicator light
Indicates a malfunction in:
• The VSC system;
• The TRC system; or
• The hill-start assist control system
The light will flash when the above systems and/or ABS are
operating.
Have the vehicle inspected by any authorized Lexus dealer
or repairer, or another duly qualified and equipped profes-
sional immediately.
(If equipped)
Automatic headlight leveling system warning light
Indicates a malfunction in the automatic headlight leveling
system
Have the vehicle inspected by any authorized Lexus dealer
or repairer, or another duly qualified and equipped profes-
sional immediately.
High coolant temperature warning light
Changes from a flashing to a solid light when the engine
coolant temperature increases
Stop and check. (P. 629)
Open door warning light (warning buzzer)*2
Indicates that a door is not fully closed
Check that all the doors are closed.
Low fuel level warning light
Indicates that remaining fuel is approximately 6.8 L (1.8
gal., 1.5 Imp.gal.) or less
Refuel the vehicle.
Driver’s and front passenger’s seat belt reminder light (warn-
ing buzzer)
*3
Warns the driver and/or front passenger to fasten their seat
belts
Fasten the seat belt.
If the front passenger’s seat is occupied, the front passen-
ger’s seat belt also needs to be fastened to make the warning
light (warning buzzer) turn off.
Rear passengers’ seat belt reminder lights (warning buzzer)*4
Warns the rear passengers to fasten their seat belts in the fol-
lowing situations:
• A rear door is opened and closed.
*5
• A rear passenger fastens their seat belt and then unfastens
it.
Fasten the seat belt.
Warning lightWarning light/Details/Actions
Page 636 of 688

6328-2. Steps to take in an emergency
CT200h_OM_OM76102E_(EE)
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 profes-
sional.
WA R N I N G
To prevent an accident or injury 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 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 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 system has cooled down sufficiently. Add-
ing cool coolant to a hot hybrid system 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 any coolant additive.
6
Page 643 of 688
639
9 9-1. Specifications
Vehicle specifications
CT200h_OM_OM76102E_(EE)
*: The engine oil capacity is a reference quantity to be used when changing the
engine oil. Warm up the engine and turn off the hybrid system, wait more than
5 minutes, and check the oil level on the dipstick.
Fuel
Fuel type
EU area
Unleaded gasoline conforming to European
standard EN228 only
Except EU area
Unleaded gasoline only
Research Octane Number95 or higher
Fuel tank capacity (Refer-
ence)45 L (11.9 gal., 9.9 lmp.gal.)
Electric motor (traction motor)
TypePermanent magnet motor
Maximum output60 kW
Maximum torque207 N•m (21.1 kgf•m, 153 ft•lbf)
Hybrid battery (traction battery)
TypeNickel-Metal hydride battery
Voltage7.2 V/module
Capacity6.5 Ah (3HR)
Quantity28 modules
Overall voltage201.6 V
Lubrication system
Oil capacity
(Drain and refill refer-
ence
*)
With filter
Without filter4.2 L (4.4 qt., 3.7 Imp.qt.)
3.9 L (4.1 qt., 3.4 Imp.qt.)
Page 677 of 688

673Alphabetical index
CT200h_OM_OM76102E_(EE)
If your vehicle becomes
stuck ...................................633
If your vehicle has to be
stopped in an emergency ....561
If your vehicle needs
to be towed .........................562
If your vehicle overheats ......629
Energy monitor..........................117
Engine
Accessory mode....................198
Compartment ........................495
Engine switch .......................196
Hood .....................................492
How to start the
hybrid system .....................196
Identification number ...........638
If your vehicle has to be
stopped in an emergency ....561
Ignition switch
(power switch)....................196
Overheating ..........................629
Power switch ........................196
Engine compartment cover........496
Engine coolant
Capacity ................................642
Checking ...............................501
Preparing and checking
before winter ......................284
Engine coolant temperature
warning light ...........................570Engine oil
Capacity ............................... 639
Checking .............................. 497
Oil pressure warning light ... 568
Preparing and checking
before winter ..................... 284
Engine switch ........................... 196
Auto power off function ...... 198
Changing the power switch
modes ................................ 198
If your vehicle has to be stopped
in an emergency ................ 561
Starting the hybrid system ... 196
EPS (Electronic Power Steering)
Function ............................... 268
Warning light ....................... 569
EV indicator ............................... 79
EV drive mode.......................... 201
First-aid kit storage belt............ 470
Flat tire ............................. 591, 605
Floor mats ................................... 36
Fluid
Brake.................................... 644
Transmission........................ 643
Washer ................................. 503
Fog lights
Replacing light bulbs ... 545, 556
Switch .................................. 216
Wattage ................................ 647
Follow me home system ........... 212
F