Lexus CT (2021 year). Manual in english

1-3. Hybrid system

WARNING

■

Road accident cautions

Observe the following precautions to reduce the risk of death or serious injury:

●

Stop the vehicle in a safe place to prevent subsequent accidents. While depressing

the brake pedal, apply the parking brake and shift the shift position to P to stop the

hybrid system. Then, slowly release the brake pedal.

●

Do not touch the high voltage parts, cables and connectors.

●

If electric wires are exposed inside or outside your vehicle, an electric shock may

occur. Never touch exposed electric wires.

●

If a fluid leak occurs, do not touch the fluid as it may be strong alkaline electrolyte

from the hybrid battery (traction battery). If it comes into contact with your skin or

eyes, wash it off immediately with a large amount of water or, if possible, boric acid

solution. Seek immediate medical attention.

●

If a fire occurs in the hybrid vehicle, leave the vehicle as soon as possible. Never use a

fire extinguisher that is not meant for electric fires. Using even a small amount of

water may be dangerous.

●

If your vehicle needs to be towed, do so with front wheels raised. If the wheels con-

nected to the electric motor (traction motor) are on the ground when towing, the

motor may continue to generate electricity. This may cause an electricity leakage

leading to a fire. (



P. 659)

●

Carefully inspect the ground under the vehicle. If you find that liquid has leaked onto

the ground, the fuel system may have been damaged. Leave the vehicle as soon as

possible.

■

Hybrid battery (traction battery)

●

Never resell, hand over or modify the hybrid battery. To prevent accidents, hybrid

batteries that have been removed from a disposed vehicle are collected through any

authorized Lexus retailer or Lexus authorized repairer, or any reliable repairer. Do

not dispose of the battery yourself.
Unless the battery is properly collected, the following may occur, resulting in death

or serious injury:
• The hybrid battery may be illegally disposed of or dumped, and it is hazardous to

the environment or someone may touch a high voltage part, resulting in an electric

shock.

• The hybrid battery is intended to be used exclusively with your hybrid vehicle. If

the hybrid battery is used outside of your vehicle or modified in any way, accidents

such as electric shock, heat generation, smoke generation, an explosion and elec-

trolyte leakage may occur.

When reselling or handing over your vehicle, the possibility of an accident is

extremely high because the person receiving the vehicle may not be aware of these

dangers.

●

If your vehicle is disposed of without the hybrid battery having been removed, there is

a danger of serious electric shock if high voltage parts, cables and their connectors

are touched. In the event that your vehicle must be disposed of, the hybrid battery

must be disposed of by any authorized Lexus retailer or Lexus authorized repairer, or

any reliable repairer. If the hybrid battery is not disposed of properly, it may cause

electric shock that can result in death or serious injury.

1-3. Hybrid system

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NOTICE

■

Hybrid battery air intake vent

●

Do not put foreign objects near the air intake vent. If the air intake vent is blocked, the

battery input and output may be restricted and cause a reduction in fuel economy.

●

Clean the air intake vent regularly to prevent the hybrid battery (traction battery)

from overheating.

●

Do not wet or allow foreign substances to enter the air intake vent as this may cause a

short circuit and damage the hybrid battery (traction battery).

●

Do not carry large amounts of water such as water cooler bottles in the vehicle. If

water spills onto the hybrid battery (traction battery), the battery may be damaged.

Have the vehicle inspected by any authorized Lexus retailer or Lexus authorized

repairer, or any reliable repairer.

●

A filter is installed to the air intake vent. When the filter remains noticeably dirty even

after cleaning the air intake vent, filter cleaning or replacement is recommended. For

details about filter cleaning or replacement, contact any authorized Lexus retailer or

Lexus authorized repairer, or any reliable repairer.
If “MAINTENANCE REQUIRED FOR TRACTION BATTERY COOLING

PARTS SEE OWNER’S MANUAL” or “Maintenance required for Traction battery

cooling parts See owner’s manual” is shown on the multi-information display, the air

intake vent and filter may be clogged. Refer to P. 586 for details how to clean the air

intake vent.

1-4. Theft deterrent system

Immobilizer system

The indicator light flashes after the
power switch has been turned off to
indicate that the system is operating.
The indicator light stops flashing after
the power switch has been turned to
ACCESSORY or ON mode to indi-
cate that the system has been canceled.

■

System maintenance

The vehicle has a maintenance-free type immobilizer system.

■

Conditions that may cause the system to malfunction

●

If the grip portion of the key is in contact with a metallic object

●

If the key is in close proximity to or touching a key registered to the security system (key

with a built-in transponder chip) of another vehicle

The vehicle’s keys have built-in transponder chips that prevent the hybrid sys-
tem from starting if a key has not been previously registered in the vehicle’s
on-board computer.
Never leave the keys inside the vehicle when you leave the vehicle.

This system is designed to help prevent vehicle theft but does not guarantee
absolute security against all vehicle thefts.

1-4. Theft deterrent system

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Alarm



The alarm uses light and sound to give an alert when an intrusion is detected.
The alarm is triggered in the following situations when the alarm is set:

●

A locked door is unlocked or opened in any way other than using the entry
function (if equipped) or wireless remote control.

●

The hood is opened.

●

The intrusion sensor detects something moving inside the vehicle. (An
intruder gets in the vehicle.)

●

The tilt sensor detects a change of vehicle inclination. (if equipped)

●

The back door window is broken. (if equipped)

Close the doors and hood, and lock all
the doors using the entry function (if
equipped) or wireless remote control.
The system will be set automatically
after 30 seconds.

The indicator light changes from being

on to flashing when the system is set.

Do one of the following to deactivate or stop the alarm.

●

Unlock the doors using the entry function (if equipped) or wireless remote
control.

●

Start the hybrid system. (The alarm will be deactivated or stopped after a few
seconds.)



: If equipped

The alarm

Setting the alarm system

Deactivating or stopping the alarm

1-4. Theft deterrent system

■

System maintenance

The vehicle has a maintenance-free type alarm system.

■

Items to check before locking the vehicle

To prevent unexpected triggering of the alarm and vehicle theft, make sure of the follow-

ing.

●

Nobody is in the vehicle.

●

The windows and moon roof (if equipped) are closed before the alarm is set.

●

No valuables or other personal items are left in the vehicle.

■

Triggering of the alarm

The alarm may be triggered in the following situations:

(Stopping the alarm deactivates the alarm system.)

■

Alarm-operated door lock

In the following cases, depending on the situation, the door may automatically lock to

prevent improper entry into the vehicle:

●

When a person remaining in the vehicle unlocks the door and the alarm is activated.

●

While the alarm is activated, a person remaining in the vehicle unlocks the door.

●

When recharging or replacing the 12-volt battery.

●

The doors are unlocked using the mechanical

key.

●

A person inside the vehicle opens a door or

hood.

●

The 12-volt battery is recharged or replaced

when the vehicle is locked. (



P. 718)

1-4. Theft deterrent system

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■

Customization

The alarm can be set to deactivate when the mechanical key is used to unlock.

(Customizable features:



P. 742)

●

The intrusion sensor detects intruders or movement in the vehicle.

●

The tilt sensor detects changes in vehicle inclination, such as when the vehicle
is towed away.

This system is designed to deter and prevent vehicle theft but does not guarantee
absolute security against all intrusions.

■

Setting the intrusion sensor and tilt sensor

The intrusion sensor and tilt sensor will be set automatically when the alarm is
set. (



P. 89)

■

Canceling the intrusion sensor and tilt sensor

If you are leaving pets or other moving things inside the vehicle, make sure to
disable the intrusion sensor and tilt sensor before setting the alarm, as they will
respond to movement inside the vehicle.

Turn the power switch off.
Press the intrusion sensor and tilt
sensor cancel switch.

A message will be shown on the

multi-information display in the

instrument cluster.

The intrusion sensor and tilt sensor

will revert to on each time the power

switch is turned to ON mode.

NOTICE

■

To ensure the system operates correctly

Do not modify or remove the system. If modified or removed, the proper operation of

the system cannot be guaranteed.

Intrusion sensor and tilt sensor (if equipped)

1-4. Theft deterrent system

■

Canceling and automatic re-enabling of the intrusion sensor and tilt sensor

●

The alarm will still be set even when the intrusion sensor and tilt sensor are canceled.

●

After the intrusion sensor and tilt sensor are canceled, pressing the power switch or

unlocking the doors using the entry function or wireless remote control will re-enable

the intrusion sensor and tilt sensor.

●

The intrusion sensor and tilt sensor will automatically be re-enabled when the alarm

system is deactivated.

■

Intrusion sensor detection considerations

The sensor may trigger the alarm in the following situations:

• The movement of people outside the vehicle

●

Places with extreme vibrations or noises, or situations in which the vehicle is subject to

repeated impacts or vibrations:
• When parked in a parking garage

• When the vehicle is transported by a ferry, trailer, train, etc.

• When ice adhering to the vehicle is removed

• When the vehicle is in an automatic or high-pressure car wash

• When in a hail or lightning storm

■

Tilt sensor detection considerations

The sensor may trigger the alarm in the following situations:

●

The vehicle is transported by a ferry, trailer, train, etc.

●

The vehicle is parked in a parking garage.

●

The vehicle is inside a car wash that moves the vehicle.

●

Any of the tires loses air pressure.

●

The vehicle is jacked up.

●

An earthquake occurs or the road caves in.

●

A window or the moon roof (if equipped) is

open.
In this case, the sensor may detect the follow-

ing:
• Wind or the movement of objects such as

leaves and insects inside the vehicle

• Ultrasonic waves emitted from devices

such as the intrusion sensors of other vehi-

cles

●

Unstable items, such as dangling accessories

or clothes hanging on the coat hooks, are in

the vehicle.

1-4. Theft deterrent system

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NOTICE

■

To ensure the intrusion sensor functions correctly

●

Installing accessories other than genuine Lexus parts or leaving objects between the

driver’s seat and front passenger’s seat may reduce the detection performance.

●

To ensure that the sensors operate properly,

do not touch or cover them.

●

Do not spray air fresheners or other products

directly into the sensor holes.

2. Instrument cluster

t cl

Warning lights inform the driver of malfunctions in any of the vehicle’s systems.

Warning lights

Brake system warning light

(



P. 665)

Slip indicator light

(



P. 666)

Brake system warning light

(



P. 665)

(if equipped)

Automatic headlight

leveling system warning

light (



P. 667)

Charging system warning

light (



P. 672)

High coolant temperature

warning light (



P. 667)

Low engine oil pressure

warning light (



P. 665)

Open door warning light

(



P. 667)

Malfunction indicator lamp

(



P. 665)

Low fuel level warning light

(



P. 667)

SRS warning light

(



P. 666)

Driver’s and front

passenger’s seat belt

reminder light (



P. 667)

ABS warning light

(



P. 666)

Rear passengers’ seat

belt reminder lights

(



P. 667)

Electric power steering

system warning

light (



P. 666)

Master warning light

(



P. 667)

(if equipped)

LDA indicator (



P. 666)

Tire pressure warning light

(



P. 668)

(if equipped)

PCS warning light

(



P. 666)

2. Instrument cluster

: These lights turn on when the power switch is turned to ON mode to indicate that a

system check is being performed. They will turn off after the hybrid system is on, or
after a few seconds. There may be a malfunction in a system if a light does not come
on, or turn off. Have the vehicle inspected by any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer.

: This light illuminates on the multi-information display.

: This light illuminates on the center panel.

The indicators inform the driver of the operating state of the vehicle’s various sys-
tems.

Indicators

Turn signal indicator

(



P. 276)

EV drive mode indicator

(



P. 269)

Tail light indicator

(



P. 278)

“ECO” mode indicator

(



P. 368)

Headlight high beam

indicator (



P. 278)

“SPORT” mode indicator

(



P. 368)

(if equipped)

Automatic High Beam

indicator (



P. 283)

(if equipped)

LDA indicator (



P. 324)

(if equipped)

Front fog light indicator

(



P. 286)

(if equipped)

(flashes)

LDA indicator (



P. 672)

Rear fog light indicator

(



P. 286)

(if equipped)

LDA indicator (



P. 323)

“READY” indicator

(



P. 265)

(if equipped)

Cruise control indicator

(



P. 334, 346)

EV indicator (



P. 71)

(if equipped)

Dynamic radar cruise

control indicator

(



P. 334)

2. Instrument cluster

t cl

: This light illuminates on the multi-information display.

: These lights turn on when the power switch is turned to the ON mode to indicate that

a system check is being performed. They will turn off after the hybrid system is on, or
after a few seconds. There may be a malfunction in a system if the lights do not turn on,
or turn off. Have the vehicle inspected by any authorized Lexus retailer or Lexus
authorized repairer, or any reliable repairer.

: The light flashes to indicate that the system is operating.

: The light comes on when the system is turned off.

: This light illuminates on the center panel.

(if equipped)

Cruise control “SET”

indicator (



P. 334, 346)

2, 4

(if equipped)

PCS warning light

(



P. 312)

(if equipped)

Lexus parking

assist-sensor indicator

(



P. 349)

Shift position indicators

(



P. 271)

2, 3

Slip indicator light

(



P. 370)

2, 5

“PASSENGER AIR

BAG” indicator

(



P. 46)

“TRC OFF” indicator

(



P. 370)

WARNING

■

If a safety system warning light does not come on

Should a safety system light such as the ABS and SRS warning light not come on when

you start the hybrid system, this could mean that these systems are not available to help

protect you in an accident, which could result in death or serious injury. Have the vehi-

cle inspected by any authorized Lexus retailer or Lexus authorized repairer, or any reli-

able repairer immediately if this occurs.

101

2. Instrument cluster

t cl

Hybrid System Indicator

Displays hybrid system output or regeneration level
Changes to the tachometer depending on the drive mode or setting on the display.

(



P. 102, 742)

Tachometer

Displays the engine speed in revolutions per minute
Changes to Hybrid System Indicator depending on the drive mode or setting on the

display. (



P. 103, 742)

Shift position indicators



P. 271

Speedometer

Displays the vehicle speed

ECO lamp and SPORT lamp (if equipped)

Changes colors according to driving mode (



P. 103)

Outside temperature

The temperature range that can be displayed is from -40



C (-40



F) to 50



(122



Multi-information display

Presents the driver with a variety of driving-related data (



P. 104)

Displays warning messages in case of a malfunction (



P. 671)

Fuel gauge

Displays the quantity of fuel remaining in the tank

Odometer and trip meter display
Odometer:
Displays the total distance that the vehicle has been driven
Trip meter:
Displays the distance the vehicle has been driven since the meter was last
reset. Trip meters “A” and “B” can be used to record and display different dis-
tances independently.
Odometer/trip meter display change button



P. 102

102

2. Instrument cluster

Switches between odometer and trip
meter displays. When the trip meter is
displayed, pressing and holding the
button will reset the trip meter.

The brightness of the instrument panel lights can be adjusted by turning the dial.

Brighter
Darker

When the headlight switch is turned to

ON, the brightness will be reduced

slightly unless the control dial is turned

fully up.
When the dial is turned fully down, the

cup holder light and the footwell lights

will turn off. (



P. 566)

■

The meters and display illuminate when

The power switch is in ON mode.

■

Hybrid System Indicator

Changing the display

Instrument panel light control

Power area

Shows that an Eco-friendly driving range is

being exceeded (during full power driving

etc.)
Eco area

Shows that the vehicle is being driven in an

Eco-friendly manner.
Hybrid Eco area

Shows that gasoline engine power is not

being used very often.
The gasoline engine will automatically stop

and restart under various conditions.
Charge area

Shows that energy is being recovered via the

regenerative brake.

Lexus CT (2021 year). Manual in english - page 4