Page 483 of 640
483
CT200h_OM_OM76215U_(U)7-3. Do-it-yourself maintenance
7
Maintenance and care
Engine compartment
■12-volt battery
P. 4 9 1
Engine coolant reservoir
(P. 4 8 7 )
Engine oil level dipstick (P. 4 8 4 )
Engine oil filler cap ( P. 4 8 4 )
Power control unit coolant reservoir ( P. 4 8 7 ) Brake fluid reservoir (
P. 4 8 9 )
Fuse box ( P. 5 1 1 )
Radiator ( P. 4 8 9 )
Condenser ( P. 4 8 9 )
Electric cooling fans
Wa s h e r f l u i d t a n k ( P. 4 9 0 )1
2
3
4
5
6
7
8
9
10
Page 488 of 640

488
CT200h_OM_OM76215U_(U)7-3. Do-it-yourself maintenance
■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. 5 7 2 )
■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 mixt ure of 50% coolant and 50% deionized water.
(Minimum temperature: -31 F [-35 C])
Canada:
“Toyota Super Long Life Coolant” is a mixt ure 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/p ower 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.
Page 575 of 640

5758-2. Steps to take in an emergency
CT200h_OM_OM76215U_(U)
8
When trouble arises
Start the hybrid system and check for 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.
WA R N I N G
■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 h ood, do not open the hood until the steam
has subsided. The engine compartment may be very hot.
●After the hybrid system has been turned of f, 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 fa n, which may lead to fingers or clothing
(especially a tie, a scarf or a muffler) ge tting 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. Adding 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 631 of 640

631Alphabetical index
CT200h_OM_OM76215U_(U)
P position switch .....................................166
Panic mode .............................................. 103
Parking brakeOperation ................................................. 171
Parking brake engaged warning buzzer/message......... 535
Parking lights Light switch ............................................. 172
Replacing light bulbs ........................524
Parking lock ..............................................166
PCS (Pre-Collision System) ............ 242 Function .................................................. 242
Pre-collision braking off switch.................................................... 242
Warning light ...................................... 536
Warning message .................... 543, 548, 549
Personal lights..........................................431 Switch....................................................... 432
Wattage ................................................. 585
Power control unit coolant Capacity .................................................. 581
Checking................................................487
Preparing and checking before winter .................................... 249
Radiator ................................................. 489
Power outlets ......................................... 444
Power steering (Electric Power
Steering system) ................................ 238 Warning light ...................................... 536 Power switch............................................ 159
Auto power off function .................... 161
Changing the power switch modes ................................................... 160
If your vehicle has to be stopped in an emergency.......... 529
Starting the hybrid system...............159
Power windows Catch protection function ...............140
Jam protection function....................140
Operation................................................139
Window lock switch ..........................139
Pre-Collision System (PCS).............242 Function .................................................. 242
Pre-collision braking off switch ................................................... 242
Warning light .......................................536
Warning message.... 543, 548, 549
Radar cruise control (dynamic radar cruise control).......................... 192
Radiator.................................................... 489
Radio ..........................................................263
Radio data system .................................264
RDS .............................................................264
Rear seat Folding down the rear seatbacks ............................................. 124
Rear side marker lights Light switch............................................. 172
Replacing light bulbs ....................... 524
P
R
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.