engine overheat Lexus CT200h 2011 Owner's Manual (in English)

TABLE OF CONTENTSIndex
6
CT200h_EE (OM76041E)
4-1. Maintenance and care
Cleaning and protecting the
vehicle exterior................. 466
Cleaning and protecting the
vehicle interior ................. 471
4-2. Maintenance
Maintenance requirements . 474
4-3. Do-it-yourself maintenance
Do-it-yourself service
precautions ....................... 477
Hood ................................... 481
Positioning a floor jack ...... 483
Engine compartment .......... 485
12-volt battery .................... 496
Tires ................................... 503
Tire inflation pressure ........ 507
Wheels................................ 509
Air conditioning filter ........ 511
Electronic key battery ........ 515
Checking and replacing
fuses ................................. 520
Light bulbs ......................... 5345-1. Essential information
Emergency flashers ............ 550
If your vehicle needs to be
towed ................................ 551
If you think something is
wrong ............................... 557
5-2. Steps to take in an emergency
If a warning light turns on or a
warning buzzer sounds..... 558
If a warning message is
displayed .......................... 565
If you have a flat tire (vehicles
with a spare tire)............... 586
If you have a flat tire (vehicles
without a spare tire) ......... 600
If the hybrid system will not
start................................... 614
If you lose your keys .......... 616
If the electronic key does not
operate properly ............... 617
If the 12-volt battery is
discharged ........................ 620
If your vehicle overheats .... 627
If the vehicle becomes stuck .....
632
If your vehicle has to be
stopped in an emergency.. 634
4Maintenance and care5When trouble arises

188
2-1. Driving procedures
CT200h_EE (OM76041E)
CAUTION
Do not shift the shift position to P while the vehicle is moving.
Doing so can damage the transmission and may result in a loss of vehicle
control.
Do not shift the shift position to R while the vehicle is moving forward.
Doing so can damage the transmission and may result in a loss of vehicle
control.
Do not shift the shift position to D while the vehicle is moving backward.
Doing so can damage the transmission and may result in a loss of vehicle
control.
Moving the shift position to N while the vehicle is moving will disengage
the hybrid system. Engine braking is not available with the hybrid system
disengaged.
During normal driving, do not turn off the hybrid system. Turning the
hybrid system off while driving will not cause loss of steering or braking
control, but the power assist to these systems will be lost. This will make
it more difficult to steer and brake, so you should pull over and stop the
vehicle as soon as it is safe to do so. However, in the event of an emer-
gency, such as if it becomes impossible to stop the vehicle in the normal
way: P. 6 3 4
Use engine braking (shift position B instead of shift position D) to main-
tain a safe speed when driving down a steep hill.
Using the brakes continuously may cause the brakes to overheat and lose
effectiveness. (P. 204)
Do not adjust the positions of the steering wheel, the seat, or the inside or
outside rear view mirrors while driving.
Doing so may result in a loss of vehicle control that can cause accidents,
resulting in death or serious injury.
Always check that all passengers’ arms, heads or other parts of their body
are not outside the vehicle, as this may result in death or serious injury.

190
2-1. Driving procedures
CT200h_EE (OM76041E)
CAUTION
When the vehicle is stopped
Do not depress the accelerator pedal unnecessarily.
If the vehicle is in any shift position other than P or N, the vehicle may
accelerate suddenly and unexpectedly, causing an accident.
Do not leave the vehicle with the hybrid system on for a long time.
If such a situation cannot be avoided, park the vehicle in an open space
and check that exhaust fumes do not enter the vehicle interior.
In order to prevent accidents due to the vehicle rolling away, always keep
depressing the brake pedal while the “READY” indicator is on. Apply the
parking brake as necessary.
If the vehicle is stopped on an incline, in order to prevent accidents caused
by the vehicle rolling forward or backward, always depress the brake
pedal and securely apply the parking brake as needed.
Avoid revving or racing the engine.
Running the engine at high speed while the vehicle is stopped may cause
the exhaust system to overheat, which could result in a fire if combustible
material is nearby.

221
2-2. Instrument cluster
2
When driving
CT200h_EE (OM76041E)
Customization
Settings (e.g. on/off operation of the ECO lamp) can be changed.
(Customizable features P. 655)
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. 6 2 7 )

287
2-4. Using other driving systems
2
When driving
CT200h_EE (OM76041E)
When the VSC/TRC systems are operating
If the vehicle is in danger of
slipping or if any of the drive
wheels spins, the slip indicator
light flashes to indicate that the
VSC/TRC systems are operat-
ing.
Sounds and vibrations caused by the ABS, brake assist, VSC and TRC
A sound may be heard from the engine compartment when the hybrid
system is started, just after the vehicle begins to move, if the brake pedal
is depressed forcefully or repeatedly, or 1-2 minutes after the hybrid sys-
tem is stopped. This sound does not indicate that a malfunction has
occurred in any of these systems.
Any of the following conditions may occur when the above systems are
operating. None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.
• The brake pedal may pulsate slightly after the ABS is activated.
• The brake pedal may move down slightly after the ABS is activated.
EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may
be heard. This does not indicate a malfunction.
Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the system from
overheating when there is frequent steering input over an extended period of
time. The steering wheel may feel heavy as a result. Should this occur,
refrain from excessive steering input or stop the vehicle and turn the hybrid
system off. The EPS system should return to normal within 10 minutes.

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

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

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

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”.

687
Alphabetical index
CT200h_EE (OM76041E)
Outside rear view mirrors
Adjusting and folding ...........114
Driving position memory .......98
Mirror position memory .........98
Outside rear view mirror
defogger switch
*....................323
Outside temperature display ......216
Overhead console ......................446
Overheating, Engine ..................627
Overheating, Hybrid system......627
Parking brake ............................214
PCS ............................................292
Personal lights
Switch ...................................439
Wattage .................................652
Pollen removal mode.................317
Power outlet ..............................451
“POWER” switch ......................196
Power windows .........................119
Pre-crash safety system .............292
Push-button start system .............75Radar cruise control system ..... 252
Radiator .................................... 494
Radio ....................................... 329
Radio data system..................... 332
RDS .......................................... 332
Rear turn signal lights
Replacing light bulbs ........... 534
Wattage ................................ 652
Rear view monitor system ........ 275
Rear window defogger
*........... 323
Rear window wiper and
washer .................................... 245
Remote Touch
*
Replacing
Electronic key battery .......... 515
Fuses .................................... 520
Light bulbs ........................... 534
Tires ..................................... 586
P
R
*: For vehicles with a navigation system, refer to
the “Navigation System Owner’s Manual”.