2014 Lexus CT200h coolant temperature

5178-2. Steps to take in an emergency
CT200h_OM_OM76135E_(EE)
8
When trouble arises
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 operat-
ing.
→ Have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional
immediately.
(If equipped)
Automatic headlight leveling system warning light
Indicates a malfunction in the au tomatic headlight leveling system
→ Have the vehicle inspected by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional
immediately.
High coolant temperature warning light
Changes from a flashing to a solid light when the engine coolant
temperature increases
→ Stop and check. ( →P. 5 7 1 )
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 (warning
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 passenger’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 following
situations:
• A rear door is opened and closed.
*5
• A rear passenger fastens their se at belt and then unfastens it.
→ Fasten the seat belt.
Master warning light
A buzzer sounds and the warning light comes on and flashes to
indicate that the master warning system has detected a malfunc-
tion.
→ P. 5 2 1
Warning lightWarning light/Details/Actions
CT200h_OM_OM76135E_(EE).book Page 517 Friday, May 30, 2014 1 1:14 AM

5718-2. Steps to take in an emergency
CT200h_OM_OM76135E_(EE)
8
When trouble arises
If your vehicle overheats
■If the high coolant temperature wa rning light comes on or flashes
Stop the vehicle in a safe place and turn off the air conditioning system, and
then stop the hybrid system.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the hybrid system has cooled down sufficiently, inspect the hoses and
radiator core (radiator) for any leaks.
Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact any autho-
rized 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 ( →P. 517) comes on or flashes,
or a loss of hybrid system power is experienced. (For example, the vehicle
speed does not increase.)
●The warning message indicating overheats is shown on the multi-informa-
tion display. ( →P. 5 3 2 )
●Steam comes out from under the hood.
Correction procedures
1
2
3
1
2
CT200h_OM_OM76135E_(EE).book Page 571 Friday, May 30, 2014 1 1:14 AM

5728-2. Steps to take in an emergency
CT200h_OM_OM76135E_(EE)
The coolant level is satisfactory if it is between the “FULL” and “LOW” lines
on the reservoir.Reservoir
“FULL” line
“LOW” line
Add coolant if necessary.
Water can be used in an emergency
if coolant is unavailable.
Start the hybrid system and turn the air conditioning system on to check
that the radiator cooling fans operate and to check for coolant leaks from
the radiator or hoses.
The fans operate when the air conditioning system is turned on immediately after a
cold start. Confirm that the fans are operating by checking the fan sound and air
flow. If it is difficult to check these, turn the air conditioning system on and off
repeatedly. (The fans may not operate in freezing temperatures.)
If the fans are not operating:
Stop the hybrid system immediately and contact any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
If the fans are operating:
Have the vehicle inspected at the nearest any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
4
1
2
3
5
6
7
CT200h_OM_OM76135E_(EE).book Page 572 Friday, May 30, 2014 1 1:14 AM

5748-2. Steps to take in an emergency
CT200h_OM_OM76135E_(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 professional.
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 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) 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
CT200h_OM_OM76135E_(EE).book Page 574 Friday, May 30, 2014 1 1:14 AM

611Alphabetical index
CT200h_OM_OM76135E_(EE)
If your vehicle becomes stuck...................................................... 575
If your vehicle has to be stopped in an emergency......... 509
If your vehicle needs to be towed ........................................ 510
If your vehicle overheats ..................571
Energy monitor....................................... 106
Engine Accessory mode..................................178
Compartment......................................455
Engine switch......................................... 177
Hood ........................................................ 452
How to start the
hybrid system ..................................... 177
Identification number .......................579
If your vehicle has to be stopped in an emergency......... 509
Ignition switch (power switch)................................... 177
Overheating ...........................................571
Power switch ......................................... 177
Engine compartment cover .............456
Engine coolant Capacity .................................................582
Checking .............................................. 460
Preparing and checking before winter .................................... 254
Engine coolant temperature warning light ......................................... 517 Engine oil
Capacity................................................ 580
Checking ............................................... 456
Oil pressure warning light ..............515
Preparing and checking before winter.................................... 254
Engine switch ........................................... 177 Auto power off function ................... 179
Changing the power switch modes.................................................... 178
If your vehicle has to be stopped in an emergency.............................509
Starting the hybrid system ...............177
EPS (Electronic Power Steering)
Function.................................................. 238
Warning light.........................................516
EV indicator ................................................72
EV drive mode.......................................... 181
First-aid kit storage belt ..................... 433
Flat tire ............................................539, 551
Floor mats ................................................... 34
Fluid Brake ....................................................... 584
Transmission ........................................583
Washer ................................................... 462
Fog lights
Replacing light bulbs .......... 495, 504
Switch ........................................................ 194
Wattage .................................................586
Follow me home system ....................... 191
F
CT200h_OM_OM76135E_(EE).book Page 611 Friday, May 30, 2014 1 1:14 AM

621Alphabetical index
CT200h_OM_OM76135E_(EE)
Warning buzzersApproach warning..............................213
Lexus parking assist-sensor ......... 222
Open door..............................................517
Seat belt reminder ...............................517
Warning lights ABS............................................................ 516
Automatic headlight leveling system ....................................................517
Brake system ........................................ 515
Charging system ................................ 515
Electric power steering ................... 516
High coolant temperature ..............517
Low engine oil pressure.................. 515
Low fuel level .........................................517
Malfunction indicator lamp ............ 516
Master warning light ..........................517
Open door..............................................517
“PCS” ........................................................ 516
Seat belt reminder light ..........................................................517
Slip indicator...........................................517
SRS............................................................. 516
Tire pressure ......................................... 518
Warning messages ............................... 521
Washer Checking ............................................... 462
Preparing and checking before winter.................................................... 254
Switch ....................................................... 196 Washing and waxing........................... 442
Wheels...................................................... 479
Replacing wheels .............................. 539
Size ...........................................................585
Window glasses ....................................... 161
Window lock switch ............................... 161
Windows Power windows .....................................161
Rear window defogger ..........412, 419
Washer ..................................................... 196
Windshield wiper de-icer ....... 413, 420
Windshield wipers Intermittent windshield wipers .................................................... 196
Rain-sensing windshield wipers .................................................... 197
Winter driving tips ............................... 254
Wireless communication ........ 315, 393
Wireless remote control key .............. 114 Locking/Unlocking .............................. 114
Panic mode ..............................................115
Replacing the battery ...................... 483
WMA disc .................................... 270, 347
W
CT200h_OM_OM76135E_(EE).book Page 621 Friday, May 30, 2014 1 1:14 AM