2011 Lexus CT200h cooling

5
627
5-2. Steps to take in an emergency
When trouble arises
CT200h_EE (OM76041E)
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.
Check to see if steam is coming out from the engine area.
If you see steam:
Stop the hybrid system. Carefully lift the hood after the
steam subsides and then restart the hybrid system.
If you do not see steam:
Leave the hybrid system operating and carefully lift the
hood.
Check to see if the cooling fans are operating.
If the fans are operating:
Wait until the high coolant temperature warning light goes
off and then stop the hybrid system.
If the fans are not operating:
Stop the hybrid system immediately and call any authorized
Lexus dealer or repairer, or another duly qualified and
equipped professional.
The following may indicate that your vehicle is overheating:
The high coolant temperature warning light comes on or
flashes:
The engine may be overheating.
“HYBRID SYSTEM OVERHEAT” is shown on the multi-
information display:
STEP1
STEP2
STEP3

628
5-2. Steps to take in an emergency
CT200h_EE (OM76041E)After the hybrid system has
cooled down sufficiently, check
the engine coolant level and
inspect the cooling system for
leaks.
If the engine compartment
cover needs to be removed: P.
486
Add engine coolant if neces-
sary.
Water can be used in an emer-
gency if engine coolant is
unavailable. (P. 645)
Have the vehicle inspected at the nearest authorized Lexus dealer
or repairer, or another duly qualified and equipped professional as
soon as possible.
STEP4
STEP5

5
629
5-2. Steps to take in an emergency
When trouble arises
CT200h_EE (OM76041E)If “HYBRID SYSTEM OVERHEAT” is shown on the multi-
information display
Stop the vehicle in a safe place and turn off the air condi-
tioning system.
Leave the hybrid system operating and carefully lift the
hood.
Check if the cooling fans are operating.
If the fans are operating:
Wait until the “HYBRID SYSTEM OVERHEAT” message
disappears and then stop the hybrid system.
If the message does not disappear, call any authorized
Lexus dealer or repairer, or another duly qualified and
equipped professional.
If the fans are not operating:
Stop the hybrid system immediately and call any authorized
Lexus dealer or repairer, or another duly qualified and
equipped professional.
After the hybrid system has
cooled down, check the power
control unit coolant level and
inspect the cooling system for
leaks.
If the engine compartment
cover needs to be removed: P.
486
STEP1
STEP2
STEP3
STEP4

5
631
5-2. Steps to take in an emergency
When trouble arises
CT200h_EE (OM76041E)
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.
For vehicles with a hybrid system, there are times when the gasoline
engine automatically starts to run or the cooling fans suddenly start to
operate. Do not touch or approach the rotating parts of the belt or fans.
Doing so may lead to fingers, clothes or tools getting caught, resulting in
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.

645
6-1. Specifications
6
Vehicle specifica-
CT200h_EE (OM76041E)
Cooling system
Capacity
Gasoline
engine
With an exhaust heat recirculator system
6.9 L (7.3 qt., 6.1 Imp.qt.)
Without exhaust heat recirculator system
6.5 L (6.9 qt., 5.7 Imp.qt.)
Power
control
unit
2.1 L (2.2 qt., 1.8 Imp.qt.)
Coolant type
Use either of the following:
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based
non-silicate, non-amine, non-nitrite, and non-
borate coolant with long-life hybrid organic
acid technology
Do not use plain water alone.

682
Alphabetical index
CT200h_EE (OM76041E)
Child safety
Airbag precautions................155
Back door precautions ............91
Child restraint system ...........163
Child-protectors ......................86
How your child should wear
the seat belt.........................107
Installing child restraints ......173
Moon roof precautions .........126
Power window lock switch...120
Power window precautions...122
Removed electronic key battery
precautions .........................519
Seat belt precautions .............109
Seat heater precautions .........456
12-volt battery precautions ...500
Child-protectors...........................86
Cleaning
Exterior .................................466
Interior ..................................471
Seat belts...............................472
Clock
*.......................................450
Condenser ..................................494
Console box ...............................443
Cooling system
Engine overheating ...............627
Hybrid system overheating ...627
Cruise control
Cruise control .......................248
Dynamic radar cruise control .....
252
Cup holders ...............................444Curtain shield airbags ............... 148
Customizable features .............. 655
Daytime running light system .. 235
Defogger
Rear window ........................ 323
Side mirrors ......................... 323
Dimensions ............................... 638
Display
Dynamic radar cruise
control ............................... 252
Multi-information display.... 226
Trip information .................. 228
Warning message................. 565
Do-it-yourself maintenance ...... 477
Door lock
Back door............................... 89
Side doors .............................. 85
Smart entry & start system .... 59
Wireless remote control ......... 80
Doors
Back door............................... 89
Door glasses......................... 119
Door lock ................... 59, 80, 85
Rear door child protector ....... 86
Side doors .............................. 85
Driver’s seat belt reminder light562
Driver’s seat position memory ... 98
Driving
Break-in tips ........................ 185
Correct posture .................... 146
Procedures ........................... 184
Winter driving tips ............... 304
Driving position memory ........... 98
D