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246
CT200h_OM_OM76215U_(U)4-5. Using the driving support systems
WA R N I N G
■Cautions regarding the assist contents of the system
By means of alarms and brake control, the pre-
collision system is intended to assist the
driver in avoiding collisions through the process of LOOK-JUDGE-ACT. There are
limits to the degree of assistance the system can provide, so please keep in mind the
following important points.
●Assisting the driver in watching the road
The pre-collision system is only able to detect obstacles directly in front of the vehicle,
and only within a limited range. It is not a mechanism that allows careless or inatten-
tive driving, and it is not a system that can assist the driver in low-visibility conditions. It
is still necessary for the driver to pay cl ose attention to the vehicle’s surroundings.
●Assisting the driver in making correct judgement
When attempting to estimate the possibility of a collision, the only data available to
the pre-collision system is that from obstacle s it has detected directly in front of the
vehicle. Therefore, it is absolutely necess ary for the driver to remain vigilant and to
determine whether or not there is a possib ility of collision in any given situation.
●Assisting the driver in taking action
The pre-collision system’s braking assist feat ure is designed to help reduce the sever-
ity of a collision, and so only acts when the system has judged that a collision is
unavoidable. This system is not capable of automatically avoiding a collision or bring-
ing the vehicle to a stop safely without appropriate operations performed by the
driver. For this reason, when encountering a dangerous situation the driver must take
direct and immediate action in order to ensure the safety of all involved.
■When the sensor may not be correctly detecting the vehicle ahead
Apply the brakes as necessary in any of the following situations.
●When water or snow thrown up by the surrounding vehicles hinders the functioning
of the sensor
●When your vehicle is pointing upwards (caused by a heavy load in the luggage com-
partment etc.)
●Vehicles that cut in suddenly
●Vehicles with small rear ends (trailers with no load on board etc.)
●Motorcycles traveling in the same lane
■Handling the radar sensor
Observe the following to ensure the pre-collision system can function effectively:
●Keep the sensor and front grille cover clean at all times.
Clean the sensor and front grille cover with a soft cloth so you do not mark or dam-
age them.
●Do not subject the sensor or surrounding area to a strong impact.
If the sensor moves even slightly off posi tion, the system may become inaccurate or
malfunction. If the sensor or surrounding area is subject to a strong impact, always
have the area inspected and adjusted by your Lexus dealer.
●Do not disassemble the sensor.
●Do not attach accessories or stickers to the sensor, grille cover or surrounding area.
●Do not modify or paint the sensor and grille cover.
●If the sensor needs to be replaced, contact your Lexus dealer.
Page 489 of 640

CT200h_OM_OM76215U_(U)
4897-3. Do-it-yourself maintenance
7
Maintenance and care
Check the radiator and condenser and clear away any foreign objects.
If either of the above parts is extremely dirty or you are not sure of their condi-
tion, have your vehicle inspected by your Lexus dealer.
■Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN” lines
on the tank.
■Adding fluid
Make sure to check the fluid type and prepare the necessary item.
■Brake fluid can absorb moisture from the air
Excess moisture in the brake fluid can cause a dangerous loss of braking efficiency. Use
only newly opened brake fluid.
Radiator and condenser
WA R N I N G
■When the hybrid system is hot
Do not touch the radiator or condenser as they may be hot and cause serious injuries,
such as burns.
■When the electric cooling fans are operating
Do not touch the engine compartment.
The electric cooling fans may keep rotating for about 3 minutes even after the power
switch is off.
With the power switch in ON mode, the electric cooling fans may automatically start to
run if the air conditioning is on and/or the coolant temperature is high. Be sure the
power switch is off when working near the electric cooling fans or radiator grille.
Brake fluid
Fluid typeFMVSS No.116 DOT 3 or SAE J1703 brake fluid
ItemsClean funnel
Page 492 of 640
492
CT200h_OM_OM76215U_(U)7-3. Do-it-yourself maintenance
Make sure that the 12-volt battery terminals are not corroded and that there are
no loose connections, cracks, or loose clamps.
Te r m i n a l s
Hold-down clamp
Insert the 2 tabs on the far side of the
cover into the holes.
Hook on the 2 tabs on the near side
of the cover.
Hook on the 2 tabs on the upper
side of the cover.
Exterior
1
2
Installing the 12-volt battery maintenance cover
1
2
3
Page 516 of 640
516
CT200h_OM_OM76215U_(U)7-3. Do-it-yourself maintenance
■Headlight low beams (halogen headlights)
Unplug the connector while
pressing the lock release.
Turn the bulb base counterclock-
wise.
Set the new light bulb.
Align the 3 tabs on the light bulb with
the mounting, and insert. Turn it
clockwise to set.
Set the connector.
After installing the connector, shake
the bulb base gently to check that it is
not loose, turn the headlight low
beams on once and visually confirm
that no light is leaking through the
mounting.
Replacing light bulbs
1
2
3
4
Page 517 of 640
CT200h_OM_OM76215U_(U)
5177-3. Do-it-yourself maintenance
7
Maintenance and care
■Headlight high beams (halogen headlights)For the right side only: Move the
washer fluid filler opening.
Unplug the connector while
pressing the lock release.
Turn the bulb base counterclock-
wise.
Set the new light bulb.
Align the 3 tabs on the light bulb with
the mounting, and insert. Turn it
clockwise to set.
1
2
3
4
Page 519 of 640
CT200h_OM_OM76215U_(U)
5197-3. Do-it-yourself maintenance
7
Maintenance and care
Replace the light bulb, and install
the bulb base.
Align the 3 tabs on the light bulb with
the mounting, and insert.
Turn and secure the bulb base.
Shake the bulb base gently to check
that it is not loose, turn the headlight
high beams on once and visually
confirm that no light is leaking
through the mounting.
When installing the cover, conduct step in reverse.
■Halogen fog light (if equipped)Remove 2 screws, a bolt and clip,
and pull down the fender liner.
Pull the fender liner down slowly,
being careful not to dislodge any
fixed components.
4
5
61
1
Page 520 of 640
520
CT200h_OM_OM76215U_(U)7-3. Do-it-yourself maintenance
Unplug the connector while
pressing the lock release.
Turn the bulb base counterclock-
wise.
Set the new light bulb.
Align the 3 tabs on the light bulb with
the mounting, and insert. Turn it
clockwise to set.
Set the connector.
After installing the connector, shake
the bulb base gently to check that it is
not loose, turn th
e fog lights on once
and visually confirm that no light is
leaking through the mounting.
2
3
4
5
Page 536 of 640

5368-2. Steps to take in an emergency
CT200h_OM_OM76215U_(U)
SRS warning lightIndicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system
Have the vehicle inspected by your Lexus dealer immediately.
(U.S.A.)
(Canada)
ABS warning light Indicates a malfunction in:
• The ABS; or
• The brake assist system
Have the vehicle inspected by your Lexus dealer immediately.
Electric power steering system warning light (warning buzzer)
Indicates a malfunction in the EPS system
Have the vehicle inspected by your Lexus dealer immediately.
(Flashes)
(If equipped)
“PCS” warning light
Indicates a malfunction in the pre-collision system
The warning light will operate as follows, even when the system is
not malfunctioning:
• The light will flash quickly when the system is operating. ( P. 2 4 2 )
• The light will turn on when the pre-collision braking is disabled. ( P. 2 4 2 )
• The light will turn on when the system cannot temporarily be
used. ( P. 5 4 9 )
Have the vehicle inspected by your Lexus dealer immediately.
Slip indicator light
Indicates a malfunction in:
• The VSC system;
•The TRAC system; or
• The hill-start assist control system
Have the vehicle inspected by your Lexus dealer immediately.
The light will flash when the VSC, TRAC and/or ABS systems are
operating.
(If equipped)
Automatic headlight leveling system warning light Indicates a malfunction in the au tomatic headlight leveling system
Have the vehicle inspected by your Lexus dealer 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 2 )
Open door warning light (warning buzzer)*2
Indicates that a door is not fully closed
Check that all the doors are closed.
Warning lightWarning light/Details/Actions