engine coolant Lexus CT200h 2011 (in English) User Guide

538
4-3. Do-it-yourself maintenance
CT200h_EE (OM76041E)Headlight high beams (LED headlights)
For the right side only: Remove the securing clips and
unclip the engine coolant reservoir hose. Then lift up the air
cleaner inlet duct. (P. 536)
Turn the cover counterclock-
wise and remove it.
Turn the bulb base counter-
clockwise.
Unplug the connector while
pulling the lock release.
STEP1
STEP2
STEP3
STEP4

540
4-3. Do-it-yourself maintenance
CT200h_EE (OM76041E)Front turn signal lights (halogen headlights)
For the right side only: Remove the securing clips and
unclip the engine coolant reservoir hose. Then lift up the air
cleaner inlet duct. (P. 536)
Turn the bulb base counter-
clockwise.
Remove the light bulb.
STEP1
STEP2
STEP3

5
557
5-1. Essential information
When trouble arises
CT200h_EE (OM76041E)
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably
needs adjustment or repair. Contact any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional as soon
as possible.
Visible symptoms
Fluid leaks under the vehicle.
(Water dripping from the air conditioning after use is nor-
mal.)
Flat-looking tires or uneven tire wear
High coolant temperature warning light flashes or comes
on.
Audible symptoms
Changes in exhaust sound
Excessive tire squeal when cornering
Strange noises related to the suspension system
Pinging or other noises related to the hybrid system
Operational symptoms
Engine missing, stumbling or running roughly
Appreciable loss of power
Vehicle pulls heavily to one side when braking
Vehicle p lls hea il to one side hen dri ing on a le el

5
559
5-2. Steps to take in an emergency
When trouble arises
CT200h_EE (OM76041E)
Stop the vehicle immediately.
The following warning indicates the possibility of damage to the
vehicle that may lead to an accident. Immediately stop the vehicle
in a safe place and contact any authorized Lexus dealer or repairer,
or another duly qualified and equipped professional.
Warning lightWarning light/Details
Charging system warning light
Indicates a malfunction in the vehicle’s charging sys-
tem
Low engine oil pressure warning light
Indicates that the engine oil pressure is too low
High coolant temperature warning light
Changes from a flashing to a solid light when the
engine coolant temperature increases

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.

683
Alphabetical index
CT200h_EE (OM76041E)
Electric power steering ..............285
Electronic key
If the electronic key does not
operate properly .................617
Replacing battery ..................515
Emergency, in case of
If a warning buzzer sounds ...558
If a warning light turns on ....558
If a warning message is
displayed ............................565
If the electronic key does not
operate properly .................617
If the hybrid system will not
start .....................................614
If the 12-volt battery is
discharged ..........................620
If you have a flat tire ...586, 600
If you lose your keys ............616
If you think something is
wrong .................................557
If your vehicle becomes stuck ....
632
If your vehicle has to be stopped
in an emergency .................634
If your vehicle needs to be
towed ..................................551
If your vehicle overheats ......627
Emergency brake signal ............286
Emergency flashers ...................550Engine
Accessory mode................... 197
Compartment ....................... 485
Hood .................................... 481
How to start the hybrid
system................................ 196
Identification number .......... 639
If the hybrid system will not
start .................................... 614
Ignition switch ..................... 196
Overheating ......................... 627
“POWER” switch ................ 196
Engine compartment cover....... 486
Engine coolant
Capacity ............................... 645
Checking .............................. 491
Preparing and checking
before winter ..................... 304
Engine/power control unit coolant
Capacity ............................... 645
Checking .............................. 491
Preparing and checking
before winter ..................... 304E
*: For vehicles with a navigation system, refer to
the “Navigation System Owner’s Manual”.