Content .. 14 15 16 17 ..

LEXUS RX 450HL (2019 year). Instruction - part 16

256

4-2. Driving procedures

RX450h_RX450hL_U

Turns the brake hold system on

The brake hold standby indicator

(green) comes on. While the system is

holding the brakes, the brake hold oper-

ated indicator (yellow) will illuminate.

■

Brake hold system operating conditions
The brake hold system cannot be turned on in the following conditions:

●

The driver’s door is not closed.

●

The driver’s seat seat belt is not buckled.

If either of the conditions above are detected when the brake hold system is enabled, the

system will turn off and the brake hold standby indicator light will go off. In addition, if any

of the conditions are detected while the system is holding the brakes, a warning buzzer

will sound and a message will be shown on the multi-information display. The parking

brake will then be set automatically.

■

Brake hold function

●

If the brake pedal is left released for a period of about 3 minutes after the system has

started holding the brakes, the parking brake will be set automatically. In this case, a

warning buzzer sounds and a message is shown on the multi-information display.

●

To turn the system off while the system is holding the brakes, firmly depress the brake

pedal and press the switch again.

●

The brake hold function may not hold the vehicle when the vehicle is on a steep incline.

In this situation, it may be necessary for the driver to apply the brakes. A warning

buzzer will sound and the multi-information display will inform the driver of this situa-

tion. If a warning message is shown on the multi-information display, read the message

and follow the instructions.

Brake Hold

The brake hold system keeps the brake applied when the shift lever is in D, S or
N with the system on and the brake pedal has been depressed to stop the vehi-
cle. The system releases the brake when the accelerator pedal is depressed
with the shift lever in D or S to allow smooth start off.

257

4-2. Driving procedures

iving

RX450h_RX450hL_U

■

When the parking brake is set automatically while the system is holding the brakes
Perform any of the following operations to release the parking brake.

●

Depress the accelerator pedal. (The parking brake will not be released automatically if

the seat belt is not fastened.)

●

Operate the parking brake switch with the brake pedal depressed.

Make sure that the parking brake indicator light goes off. (

P. 253)

■

When an inspection at your Lexus dealer is necessary
When the brake hold standby indicator (green) does not illuminate even when the brake

hold switch is pressed with the brake hold system operating conditions met, the system

may be malfunctioning. Have the vehicle inspected at your Lexus dealer.

■

If “Brake Hold Fault Depress Brake to Deactivate Visit Your Dealer” is displayed on the

multi-information display
The system may be malfunctioning. Have the vehicle inspected by your Lexus dealer.

■

Warning messages and buzzers
Warning messages and buzzers are used to indicate a system malfunction or to inform

the driver of the need for caution. If a warning message is shown on the multi-information

display, read the message and follow the instructions.

■

If the brake hold operated indicator flashes
P. 660

WARNING

■

When the vehicle is on a steep incline
When using the brake hold system on a steep incline exercise caution. The brake hold

function may not hold the vehicle in such a situation.

■

When stopped on a slippery road
The system cannot stop the vehicle when the gripping ability of the tires has been

exceeded. Do not use the system when stopped on a slippery road.

NOTICE

■

When parking the vehicle
The brake hold system is not designed for use when parking the vehicle for a long

period of time. Turning the power switch off while the system is holding the brakes may

release the brakes, which would cause the vehicle to move. When operating the power

switch, depress the brake pedal, shift the shift lever to P and set the parking brake.

258

RX450h_RX450hL_U

4-3. Operating the lights and wipers

Operating the

switch turns on the lights as follows:

Headlight switch

The headlights can be operated manually or automatically.

Operating instructions

U.S.A. Canada

The side marker, parking, tail,
license plate, Instrument
panel lights, and daytime run-
ning lights (

P. 260) turn on.

The headlights and all the
lights listed above (except
daytime running lights) turn
on.
The headlights, daytime run-
ning lights (

P. 260) and all

the lights listed above turn on
and off automatically.
(When the power switch is in
ON mode.)

Off

The daytime running lights
turn on. (

P. 260)

(U.S.A.)

(Canada)

259

4-3. Operating the lights and wipers

iving

RX450h_RX450hL_U

With the headlights on, push the
lever away from you to turn on the
high beams.

Pull the lever toward you to the center

position to turn the high beams off.

Pull the lever toward you and release
it to flash the high beams once.

You can flash the high beams with the

headlights on or off.

AFS (Adaptive Front-lighting System) secures excellent visibility at intersections
and on curves by automatically adjusting the direction of the light axis of the
headlights according to vehicle speed and the degree of the tire’s angle as con-
trolled by steering input.

AFS operates at speeds of 6 mph (10 km/h) or higher.

●

When the steering wheel or turn signal lever is operated while the headlights
are on (low beam), a cornering light will turn on and light up the direction of
movement of the vehicle. The cornering lights are designed to ensure excel-
lent visibility when making a turn at an intersection.

However, when vehicle speed is approximately 22 mph (35 km/h) or higher, the cor-

nering lights will not turn on.

●

When the shift lever is in R while the headlights are on (low beam), both cor-
nering lights will turn on. This is designed to enhance visibility when parking.

Turning on the high beam headlights

AFS (Adaptive Front-lighting System) (if equipped)

Cornering lights (if equipped)

260

4-3. Operating the lights and wipers

RX450h_RX450hL_U

■

Daytime running light system

●

The daytime running lights illuminate using the same lights as the parking lights and illu-

minate brighter than the parking lights.

●

To make your vehicle more visible to other drivers during daytime driving, the daytime

running lights turn on automatically when all of the following conditions are met. (The

daytime running lights are not designed for use at night.)
• The hybrid system is started

• The parking brake is released
• The headlight switch is in the

(Canada only),

position

: When the surroundings are bright

The daytime running lights remain on after they illuminate, even if the parking brake is set

again.

●

For the U.S.A.: Daytime running lights can be turned off by operating the switch.

●

Compared to turning on the headlights, the daytime running light system offers greater

durability and consumes less electricity, so it can help improve fuel economy.

■

Cornering lights (if equipped)
When the cornering lights are on for more than 30 minutes, they will turn off automati-

cally.

■

Headlight control sensor

■

Automatic light off system

●

When the headlights come on: The headlights and tail lights turn off 30 seconds after a

door is opened and closed if the power switch is turned to ACCESSORY mode or

turned off. (The lights turn off immediately if

on the key is pressed after all the doors

are locked.)

●

When only the tail lights come on: The tail lights turn off automatically if the power

switch is turned to ACCESSORY mode or turned off and the driver’s door is opened.

To turn the lights on again, turn the power switch to ON mode, or turn the light switch off
once and then back to

■

Automatic headlight leveling system (if equipped)
The level of the headlights is automatically adjusted according to the number of passen-

gers and the loading condition of the vehicle to ensure that the headlights do not inter-

fere with other road users.

■

Light reminder buzzer
A buzzer sounds when the power switch is turned off or turned to ACCESSORY mode

and the driver’s door is opened while the lights are turned on.

The sensor may not function properly if an

object is placed on the sensor, or anything that

blocks the sensor is affixed to the windshield.

Doing so interferes with the sensor detecting

the level of ambient light and may cause the

automatic headlight system to malfunction.

261

4-3. Operating the lights and wipers

iving

RX450h_RX450hL_U

■

Welcome lighting
If the headlight switch is turned to

and the surrounding area is dark, unlocking the

doors using the smart access system with push-button start or wireless remote control

will turn the parking lights and tail lights on automatically.

■

Windshield wiper linked headlight illumination
When driving during daytime with the headlight switch turned to

, if the windshield

wipers are used, the headlights will turn on automatically after several seconds to help

enhance the visibility of your vehicle.

■

12-volt battery-saving function
In order to prevent the 12-volt battery of the vehicle from discharging, if the headlights

and/or tail lights are on when the power switch is turned off the 12-volt battery saving

function will operate and automatically turn off all the lights after approximately 20 min-

utes. When the power switch is turned to ON mode, the 12-volt battery-saving function

will be disabled.

When any of the following are performed, the 12-volt battery-saving function is canceled

once and then reactivated. All the lights will turn off automatically 20 minutes after the

12-volt battery-saving function has been reactivated:

●

When the headlight switch is operated

●

When a door is opened or closed

■

Customization
Some functions can be customized. (

P. 736)

NOTICE

■

To prevent 12-volt battery discharge
Do not leave the lights on longer than necessary when the hybrid system is off.

262

4-3. Operating the lights and wipers

RX450h_RX450hL_U

Push the lever away from you with
the headlight switch in the

position.

Press the Automatic High Beam
switch.

The Automatic High Beam indicator will

come on when the system is operating.

Automatic High Beam

The Automatic High Beam uses a camera sensor located behind the upper
portion of the windshield to assess the brightness of the lights of vehicles
ahead, streetlights, etc., and automatically turns the high beams on or off as
necessary.

WARNING

■

Limitations of the Automatic High Beam
Do not overly rely on the Automatic High Beam. Always drive safely, taking care to

observe your surroundings and turning the high beams on or off manually if necessary.

■

To prevent incorrect operation of the Automatic High Beam system
Do not overload the vehicle.

Activating the Automatic High Beam

263

4-3. Operating the lights and wipers

iving

RX450h_RX450hL_U

■

Switching to the low beams
Pull the lever to its original position.

The Automatic High Beam indicator

will turn off.
Push the lever away from you to acti-

vate the Automatic High Beam sys-

tem again.

■

Switching to the high beams
Press the Automatic High Beam
switch.

The Automatic High Beam indicator

will turn off and the high beam indi-

cator will turn on.
Press the switch to activate the Auto-

matic High Beam system again.

Turning the high beams on/off manually

264

4-3. Operating the lights and wipers

RX450h_RX450hL_U

■

Conditions to turn the high beams on/off automatically

●

When all of the following conditions are met, the high beams will be turned on automat-

ically (after approximately 1 second):
• The vehicle speed is approximately 21 mph (34 km/h) or more.

• The area ahead of the vehicle is dark.

• There are no vehicles ahead with headlights or tail lights turned on.

• There are few streetlights on the road ahead.

●

If any of the following conditions is met, the high beams will turn off automatically:
• The vehicle speed is below approximately 17 mph (27 km/h).

• The area ahead of the vehicle is not dark.

• Vehicles ahead have their headlights or tail lights turned on.

• There are many streetlights on the road ahead.

■

Camera sensor detection information

●

The high beams may not be automatically turned off in the following situations:
• When a vehicle suddenly appears from around a curve

• When the vehicle is cut in front of by another vehicle

• When vehicles ahead cannot be detected due to repeated curves, road dividers or

roadside trees

• When vehicles ahead appear in a faraway lane on a wide road

• When the lights of vehicles ahead are not on

●

The high beams may be turned off if a vehicle ahead that is using fog lights without its

headlights turned on is detected.

●

House lights, street lights, traffic signals, and illuminated billboards or signs and other

reflective objects may cause the high beams to change to the low beams, or the low

beams to remain on.

●

The following factors may affect the amount of time taken for the high beams to turn on

or off:
• The brightness of the headlights, fog lights, and tail lights of vehicles ahead

• The movement and direction of vehicles ahead

• When a vehicle ahead only has operational lights on one side

• When a vehicle ahead is a two-wheeled vehicle

• The condition of the road (gradient, curve, condition of the road surface, etc.)

• The number of passengers and amount of luggage in the vehicle

●

The high beams may turn on or off unexpectedly.

●

Bicycles or similar vehicles may not be detected.

265

4-3. Operating the lights and wipers

iving

RX450h_RX450hL_U

●

In the following situations the system may not be able to correctly detect the surround-

ing brightness level. This may cause the low beams to remain on or the high beams to

flash or dazzle pedestrians or vehicles ahead. In such a case, it is necessary to manually

switch between the high and low beams.
• When driving in inclement weather (heavy rain, snow, fog, sandstorms, etc.)

• When the windshield is obscured by fog, mist, ice, dirt, etc.

• When the windshield is cracked or damaged

• When the camera sensor is deformed or dirty

• When the temperature of the camera sensor is extremely high

• When the surrounding brightness level is equal to that of headlights, tail lights or fog

lights

• When headlights or tail lights of vehicles ahead are turned off, dirty, changing color,

or not aimed properly

• When the vehicle is hit by water, snow, dust, etc. from a preceding vehicle

• When driving through an area of intermittently changing brightness and darkness

• When frequently and repeatedly driving ascending/descending roads, or roads with

rough, bumpy or uneven surfaces (such as stone-paved roads, gravel roads, etc.)

• When frequently and repeatedly taking curves or driving on a winding road

• When there is a highly reflective object ahead of the vehicle, such as a sign or mirror

• When the back of a preceding vehicle is highly reflective, such as a container on a

truck

• When the vehicle’s headlights are damaged or dirty, or are not aimed properly

• When the vehicle is listing or titling due to a flat tire, a trailer being towed, etc.

• When the headlights are changed between the high beams and low beams repeat-

edly in an abnormal manner

• When the driver believes that the high beams may be flashing or dazzling pedestri-

ans or other drivers

■

Temporarily lowering sensor sensitivity
The sensitivity of the sensor can be temporarily lowered.

Turn the power switch off while the following conditions are met.

• The headlight switch is in

• The headlight switch lever is in high beam position.

• Automatic High Beam switch is on.

Turn the power switch to ON mode.
Within 30 seconds after , repeat pulling the headlight switch lever to the original

position then pushing it to the high beam position quickly 10 times, then leave the lever

in high beam position.
If the sensitivity is changed, the Automatic High Beam indicator is turn on and off 3

times.

Automatic High Beam (headlights) may turn on even when the vehicle is stopped.

2
3

266

4-3. Operating the lights and wipers

RX450h_RX450hL_U

(U.S.A.) or

(Canada)

Turns the fog lights off

Turns the fog lights on

■

Fog lights can be used when
The headlights are on in low beam.

Fog light switch

The fog lights secure excellent visibility in difficult driving conditions, such as
in rain and fog.

Operating instructions

267

4-3. Operating the lights and wipers

iving

RX450h_RX450hL_U

Operating the

lever operates the wipers or washer as follows.

When “AUTO” is selected, the wipers will operate automatically when the sensor
detects falling rain. The system automatically adjusts wiper timing in accordance
with rain volume and vehicle speed.
The sensor sensitivity can be adjusted when “AUTO” is selected.

(U.S.A.) or

(Canada)

Off

Rain-sensing operation

(U.S.A.) or

(Canada)

Low speed operation

(U.S.A.) or

(Canada)

High speed operation

(U.S.A.) or

(Canada)

Temporary operation

Increases the sensitivity
Decreases the sensitivity

Windshield wipers and washer

Operating the wiper lever

6
7

268

4-3. Operating the lights and wipers

RX450h_RX450hL_U

Washer/wiper dual opera-
tion

Pulling the lever operates the wipers

and washer.
The wipers will automatically operate a

couple of times after the washer squirts.
Vehicles with headlight cleaners:

When the power switch is in ON mode

and the headlights are on, if the lever is

pulled, the headlight cleaners will oper-

ate once. After this, the headlight clean-

ers will operate every 5th time the lever

is pulled.

■

The windshield wipers and washer can be operated when
The power switch is in ON mode.

■

Dripping prevention wiper sweep
After washing and wiping operation several times, the wipers operate one more time

after a short delay to prevent dripping. However, this function will not operate while driv-

ing.

■

Effects of vehicle speed on wiper operation
Vehicle speed affects the Intermittent wiper interval.

■

Raindrop sensor

●

If the wiper switch is turned to the “AUTO” position while the power switch is in ON

mode, the wipers will operate once to show that AUTO mode is activated.

●

When the sensor sensitivity ring is turned toward high while in “AUTO” position, the

wipers will operate once to indicate that the sensor sensitivity is enhanced.

●

If the temperature of the raindrop sensor is 194

F (90C) or higher, or 5F (-15C) or

lower, automatic operation may not occur. In this case, operate the wipers in any mode

other than AUTO mode.

■

If no windshield washer fluid sprays
Check that the washer nozzles are not blocked if there is washer fluid in the washer fluid

tank.

●

The raindrop sensor judges the amount of

raindrops.
An optical sensor is adopted. It may not oper-

ate properly when sunlight from the rising or

setting of the sun intermittently strikes the

windshield, or if bugs, etc. are present on the

windshield.

269

4-3. Operating the lights and wipers

iving

RX450h_RX450hL_U

■

Front door opening linked windshield wiper stop function
When “AUTO” is selected and the windshield wipers are operating, if a front door is

opened, the operation of the windshield wipers will be stopped to prevent anyone near

the vehicle from being sprayed by water from the wipers, provided the vehicle is stopped

with the parking brake applied or the shift lever in P. When the front door is closed, wiper

operation will resume.

■

Customization
Some functions can be customized. (

P. 736)

WARNING

■

Caution regarding the use of windshield wipers in AUTO mode
The windshield wipers may operate unexpectedly if the sensor is touched or the wind-

shield is subject to vibration in AUTO mode. Take care that your fingers, etc. do not

become caught in the windshield wipers.

■

Caution regarding the use of washer fluid
When it is cold, do not use the washer fluid until the windshield becomes warm. The

fluid may freeze on the windshield and cause low visibility. This may lead to an accident,

resulting in death or serious injury.

NOTICE

■

When the windshield is dry
Do not use the wipers, as they may damage the windshield.

■

When the washer fluid tank is empty
Do not operate the switch continually as the washer fluid pump may overheat.

■

When a nozzle becomes blocked
In this case, contact your Lexus dealer.

Do not try to clear it with a pin or other object. The nozzle will be damaged.

270

4-3. Operating the lights and wipers

RX450h_RX450hL_U

When the windshield wipers are not being used, they retract to below the hood.
To enable the windshield wipers to be lifted when parking in cold conditions or
when replacing a windshield wiper insert, change the rest position of the wind-
shield wipers to the service position using the wiper lever.

■

Raising the wipers to the service position
Within approximately 40 seconds of
turning the power switch off, move
the wiper lever to the

(U.S.A.) or

(Canada) posi-

tion and hold it for approximately 2
seconds or more.

The wipers will move to the service

position.

■

Lifting the windshield wipers
While holding the hook portion of
the wiper arm, lift the windshield
wiper from the windshield.

Changing the windshield wiper rest position/Lifting the windshield wip-
ers

Hook portion

271

4-3. Operating the lights and wipers

iving

RX450h_RX450hL_U

■

Lowering the windshield wipers to the retracted position
With the windshield wipers placed on the windshield, turn the power switch to ON mode

and then move the wiper lever to an operating position. When the wiper switch is turned

off, the windshield wipers will stop at the retracted position.

NOTICE

■

When lifting the windshield wipers

●

Do not lift the windshield wipers when they are in the retracted position below the

hood. Otherwise, they may contact the hood, possibly resulting in damage to a wind-

shield wiper and/or the hood.

●

Do not operate the wiper lever when the windshield wipers are lifted. Otherwise, the

windshield wipers may contact the hood, possibly resulting in damage to the wind-

shield wipers and/or hood.

●

Do not lift a windshield wiper by the wiper

blade. Otherwise, the wiper blade may be

deformed.

Content .. 14 15 16 17 ..