2015 Lexus CT200h coolant temperature

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CT200h_OM_OM76174U_(U)
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When trouble arises
8-2. Steps to take in an emergency
If your vehicle overheats
■If the high coolant temperature warning 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 your Lexus
dealer.
The following may indicate that your vehicle is overheating.
●The high coolant temper ature warning light (→P. 528) 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 4 0 )
●Steam comes out from under the hood.
Correction procedures
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5668-2. Steps to take in an emergency
CT200h_OM_OM76174U_(U)
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, tu rn 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 your Lexus dealer.
If the fans are operating:
Have the vehicle inspected at the nearest Lexus dealer.
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5688-2. Steps to take in an emergency
CT200h_OM_OM76174U_(U)
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 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.
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CT200h_OM_OM76174U_(U)
5759-1. Specifications
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Vehicle specifications
Oil viscosity (0W-20 is explained here as an example):• The 0W in 0W-20 indicates the characteristic of the oil which allows cold startability. Oils with a lower value before the W allow for easier starting of
the engine in cold weather.
• The 20 in 0W-20 indicates the viscosity characteristic of the oil when the oil is at high temperature. An oil with a higher viscosity (one with a higher
value) may be better suited if the vehicle is operated at high speeds, or
under extreme load conditions.
How to read oil container label:
The International Lubricant Specifi-
cation Advisory Committee
(ILSAC) Certification Mark is added
to some oil containers to help you
select the oil you should use.
Cooling system
Capacity
Gasoline
engine
XWithout exhaust heat recirculator system
6.9 qt. (6.5 L, 5.7 Imp.qt.)
XWith an exhaust heat recirculator system
7.3 qt. (6.9 L, 6.1 Imp.qt.)
Po w e r
control unit2.2 qt. (2.1 L, 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.

630Alphabetical index
CT200h_OM_OM76174U_(U)
TransmissionHybrid transmission........................... 162
P position switch.................................. 163
Selecting a driving mode .................231
Trip meters ................................................. 85
Turn signal lights Replacing light bulbs...................................514, 514, 516, 517
Turn signal lever ...................................167
Wattage ..................................................579
USB memory...............................278, 356
USB port .......................................255, 326
Vanity lights Vanity lights .......................................... 437
Wattage ..................................................579
Vanity mirrors ........................................ 437 Vanity lights .......................................... 437
Vehicle data recordings .......................... 11
Vehicle identification number......... 572
Vehicle Stability Control (VSC) .... 232
Voice command system ....................400
VSC (Vehicle Stability Control) .... 232 Warning buzzers
Approach warning .............................193
Intuitive parking assist...................... 202
Open door ...........................................528
Seat belt reminder............................. 529
Warning lights ABS ..........................................................528
Automatic headlight leveling system .................................................. 528
Brake system ....................................... 527
Charging system ............................... 527
Electric power steering ..................528
High coolant temperature ............528
Low engine oil pressure ................ 527
Low fuel level ....................................... 529
Malfunction indicator lamp........... 527
Master warning light ........................ 529
Open door ...........................................528
“PCS” .......................................................528
Seat belt reminder light .................. 529
Slip indicator ........................................528
SRS............................................................528
Tire pressure ........................................ 529
Warning messages.............................. 534
Washer Checking ............................................... 483
Low washer fluid warning message..............................................540
Preparing and checking
before winter .................................... 245
Switch ........................................................ 174
U
V
W