Lexus GS350 (2020 year). Manual in english - page 17

273

iving

After the vehicle ahead of you starts off,
push the lever up.
Your vehicle will also resume follow-up
cruising if the accelerator pedal is
depressed after the vehicle ahead of
you starts off.

Pulling the lever toward you cancels
the speed control.

The speed control is also canceled when

the brake pedal is depressed.
(When the vehicle has been stopped by

system control, depressing the brake

pedal does not cancel the setting.)

Pushing the lever up resumes the
cruise control and returns vehicle
speed to the set speed.

However, when a vehicle ahead is not detected, cruise control does not resume when

the vehicle speed is approximately 25 mph (40 km/h) or less.

When your vehicle is too close to a
vehicle ahead, and sufficient automatic
deceleration via the cruise control is
not possible, the display will flash and
the buzzer will sound to alert the driver.
An example of this would be if another
driver cuts in front of you while you are
following a vehicle. Depress the brake
pedal to ensure an appropriate vehicle-
to-vehicle distance.

Resuming follow-up cruising when the vehicle has been stopped by sys-
tem control (vehicle-to-vehicle distance control mode)

Canceling and resuming the speed control

Approach warning (vehicle-to-vehicle distance control mode)

274

4-5. Using the driving support systems

■

Warnings may not occur when

In the following instances, warnings may not occur even when the vehicle-to-
vehicle distance is small.

●

When the speed of the preceding vehicle matches or exceeds your vehicle
speed

●

When the preceding vehicle is traveling at an extremely slow speed

●

Immediately after the cruise control speed was set

●

When depressing the accelerator pedal

When constant speed control mode is selected, your vehicle will maintain a set
speed without controlling the vehicle-to-vehicle distance. Select this mode only
when vehicle-to-vehicle distance control mode does not function correctly due
to a dirty radar sensor, etc.

With the cruise control off, press and
hold the “ON/OFF” button for 1.5
seconds or more.

Immediately after the “ON/OFF” but-

ton is pressed, the radar cruise control

indicator will come on. Afterwards, it

switches to the cruise control indicator.
Switching to constant speed control

mode is only possible when operating

the lever with the cruise control off.

Accelerate or decelerate, with
accelerator pedal operation, to the
desired vehicle speed (at or above
approximately 30 mph [50 km/h])
and push the lever down to set the
speed.

Cruise control “SET” indicator will come

on.
The vehicle speed at the moment the

lever is released becomes the set speed.
Adjusting the speed setting:



P. 271

Canceling and resuming the speed setting:



P. 273

Selecting constant speed control mode

275

4-5. Using the driving support systems

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■

Dynamic radar cruise control with full-speed range can be set when

●

The shift lever is in D.

●

Range 4 or higher of D has been selected by using the paddle shift switch.

●

Vehicle speed is at or above approximately 30 mph (50 km/h).

However, when a preceding vehicle is detected, the dynamic radar cruise control with

full-speed range can be set even if the vehicle speed is below approximately 30 mph

(50 km/h).

■

Accelerating after setting the vehicle speed

The vehicle can accelerate by operating the accelerator pedal. After accelerating, the

set speed resumes. However, during vehicle-to-vehicle distance control mode, the vehi-

cle speed may decrease below the set speed in order to maintain the distance to the pre-

ceding vehicle.

■

When the vehicle stops while follow-up cruising

●

Pushing the lever up while the vehicle ahead stops will resume follow-up cruising if the

vehicle ahead starts off within approximately 3 seconds after the lever is pushed up.

●

If the vehicle ahead starts off within 3 seconds after your vehicle stops, follow-up cruis-

ing will be resumed.

■

Automatic cancelation of vehicle-to-vehicle distance control mode

Vehicle-to-vehicle distance control mode is automatically canceled in the following situ-

ations.

●

Actual vehicle speed falls at or below approximately 25 mph (40 km/h) when there are

no vehicles ahead.

●

The preceding vehicle leaves the lane when your vehicle is following at a vehicle speed

at or below approximately 25 mph (40 km/h). Otherwise, the sensor can not properly

detect the vehicle. (“CRUISE NOT AVAILABLE No Preceding Vehicles” is displayed

on the multi-information display)

●

VSC is activated.

●

TRAC is activated for a period of time.

●

When the VSC or TRAC system is turned off.

●

When snow mode is set.

●

The sensor cannot detect correctly because it is covered in some way.

●

Pre-collision braking is activated.

●

The parking brake is operated.

●

The vehicle is stopped by system control on a steep incline.

●

The following are detected when the vehicle has been stopped by system control:
• The driver is not wearing a seat belt.

• The driver’s door is opened.

• The vehicle has been stopped for about 3 minutes

If vehicle-to-vehicle distance control mode is automatically canceled for any other rea-

son, there may be a malfunction in the system. Contact your Lexus dealer.

276

4-5. Using the driving support systems

■

Automatic cancelation of constant speed control mode

Constant speed control mode is automatically canceled in the following situations:

●

Actual vehicle speed is more than approximately 10 mph (16 km/h) below the set vehi-

cle speed.

●

Actual vehicle speed falls below approximately 25 mph (40 km/h).

●

VSC is activated.

●

TRAC is activated for a period of time.

●

When the VSC or TRAC system is turned off.

●

Pre-collision braking is activated.

If constant speed control mode is automatically canceled for any other reason, there may

be a malfunction in the system. Contact your Lexus dealer.

■

Brake system operation sound

If the brakes are applied automatically while the vehicle is in vehicle-to-vehicle distance

control mode, a brake system operation sound may be heard. This does not indicate a

malfunction.

■

Warning messages and buzzers for dynamic radar cruise control with full-speed range

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

the driver of the need for caution while driving. If a warning message is shown on the

multi-information display, read the message and follow the instructions. (



P. 442)

■

When the sensor may not be correctly detecting the vehicle ahead

In the case of the following and depending on the conditions, operate the brake pedal

when deceleration of the system is insufficient or operate the accelerator pedal when

acceleration is required.

As the sensor may not be able to correctly detect these types of vehicles, the approach

warning (



P. 273) may not be activated.

●

Vehicles that cut in suddenly

●

Vehicles traveling at low speeds

●

Vehicles that are not moving in the same lane

●

Vehicles with small rear ends (trailers with no load on board, etc.)

●

Motorcycles traveling in the same lane

●

When water or snow thrown up by the surrounding vehicles hinders the detecting of

the sensor

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4-5. Using the driving support systems

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■

Conditions under which the vehicle-to-vehicle distance control mode may not function

correctly

In the case of the following conditions, operate the brake pedal (or accelerator pedal,

depending on the situation) as necessary.

As the sensor may not be able to correctly detect vehicles ahead, the system may not

operate properly.

●

When the vehicle ahead of you decelerates suddenly

●

When driving on a road surrounded by a structure, such as in a tunnel or on a bridge

●

While the vehicle speed is decreasing to the set speed after the vehicle accelerates by

depressing the accelerator pedal

●

When your vehicle is pointing upwards

(caused by a heavy load in the luggage com-

partment, etc.)

●

Preceding vehicle has an extremely high

ground clearance

●

When the road curves or when the lanes are

narrow

●

When steering wheel operation or your posi-

tion in the lane is unstable

278

4-5. Using the driving support systems

Cruise control



Use the cruise control to maintain a set speed without depressing the accelera-
tor pedal.

Set speed
Indicators
Cruise control switch

Press the “ON/OFF” button to acti-
vate the cruise control.

Cruise control indicator will come on.
Press the button again to deactivate the

cruise control.

Accelerate or decelerate the vehicle
to the desired speed, and push the
lever down to set the speed.

Cruise control “SET” indicator will come

on.

The vehicle speed at the moment the

lever is released becomes the set speed.



: If equipped

Summary of functions

2
3

Setting the vehicle speed

279

4-5. Using the driving support systems

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To change the set speed, operate the lever until the desired set speed is obtained.

Increases the speed
Decreases the speed

Fine adjustment: Momentarily move the

lever in the desired direction.
Large adjustment: Hold the lever in the

desired direction.

The set speed will be increased or decreased as follows:
Fine adjustment: By approximately 1 mph (1.6 km/h) each time the lever is operated.
Large adjustment: The set speed can be increased or decreased continually until the

lever is released.

Pulling the lever toward you cancels
the constant speed control.

The speed setting is also canceled when

the brakes are applied.

Pushing the lever up resumes the
constant speed control.

Resuming is available when the vehicle

speed is more than approximately 25

mph (40 km/h).

■

Cruise control can be set when

●

The shift lever is in D.

●

Range 4 or higher of D has been selected by using the paddle shift.

●

Vehicle speed is above approximately 25 mph (40 km/h).

■

Accelerating after setting the vehicle speed

●

The vehicle can be accelerated normally. After acceleration, the set speed resumes.

●

Even without canceling the cruise control, the set speed can be increased by first accel-

erating the vehicle to the desired speed and then pushing the lever down to set the new

speed.

Adjusting the set speed

Canceling and resuming the constant speed control

280

4-5. Using the driving support systems

■

Automatic cruise control cancelation

Cruise control will stop maintaining the vehicle speed in any of the following situations.

●

Actual vehicle speed falls more than approximately 10 mph (16 km/h) below the preset

vehicle speed.

At this time, the memorized set speed is not retained.

●

Actual vehicle speed is below approximately 25 mph (40 km/h).

●

VSC is activated.

●

TRAC is activated for a period of time.

●

When the VSC or TRAC system is turned off by pressing the VSC OFF switch.

■

If the warning message for the cruise control is shown on the multi-information display

Press the “ON/OFF” button once to deactivate the system, and then press the button

again to reactivate the system.

If the cruise control speed cannot be set or if the cruise control cancels immediately after

being activated, there may be a malfunction in the cruise control system. Have the vehi-

cle inspected by your Lexus dealer.

WARNING

■

To avoid operating the cruise control by mistake

Switch the cruise control off using the “ON/OFF” button when not in use.

■

Situations unsuitable for cruise control

Do not use cruise control in any of the following situations.

Doing so may result in loss of control and could cause an accident resulting in death or

serious injury.

●

In heavy traffic

●

On roads with sharp bends

●

On winding roads

●

On slippery roads, such as those covered with rain, ice or snow

●

On steep hills

Vehicle speed may exceed the set speed when driving down a steep hill.

●

During emergency towing

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4-5. Using the driving support systems

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Driving mode select switch



GS350 (vehicles without Adaptive Variable Suspension system)

Normal mode
For normal driving.

Press the switch to change the driving mode to normal mode when selected to Eco

drive mode or sport mode.

Eco drive mode
Use Eco drive mode to help achieve low fuel consumption during trips that
involve frequent accelerating.

When not in Eco drive mode and the driving mode select switch is turned to the left,

the “ECO” indicator comes on in the multi-information display.

Sport mode
Assists acceleration response by controlling the transmission, engine and
steering. Suitable for when precise handling is desirable, for example when
driving on mountain roads.

When not in sport mode and the driving mode select switch is turned to the right, the

“SPORT” indicator comes on in the multi-information display.

The driving modes can be selected to suit driving condition.

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4-5. Using the driving support systems



GS350 (vehicles with Adaptive Variable Suspension system)

Normal mode/Customized mode
Normal mode and customized mode are selected by pressing the driving
mode select switch. Each time the switch is pressed, the driving mode
changes between normal mode and customized mode. When customized
mode is selected, the “Customize” or “CUSTOMIZE” indicator will be illumi-
nated.

Press the switch to change the driving mode to normal mode when selected to Eco

drive mode or sport mode.

• Normal mode

For normal driving.

• Customized mode

Allows you to drive with the power train, chassis and air conditioning sys-
tem functions set to your preferred settings.
Customized mode settings can only be changed on the drive mode cus-
tomization display of the Remote Touch screen. (



P. 552)

Eco drive mode
Use Eco drive mode to help achieve low fuel consumption during trips that
involve frequent accelerating.

When not in Eco drive mode and the driving mode select switch is turned to the left,

the “ECO” or “ECO MODE” indicator comes on in the multi-information display.

Except
F SPORT models F SPORT models

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4-5. Using the driving support systems

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Sport mode

• SPORT S mode

Assists acceleration response by controlling the transmission and engine.

When not in SPORT S mode and the driving mode select switch is turned to the

right, the “SPORT S” indicator comes on in the multi-information display.

• SPORT S+ mode

Helps to ensure steering performance and driving stability by simultane-
ously controlling the steering and suspension in addition to the transmis-
sion and engine. Suitable for sporty driving.

When in SPORT S mode and the driving mode select switch is turned to the right,

the “SPORT S+” indicator comes on in the multi-information display.

284

4-5. Using the driving support systems



GS F

Press the switch to change the driving mode to normal mode when Eco drive mode or

sport mode is selected. The normal mode indicator comes on in the meter.

• Normal mode

For normal driving.

• Customized mode



P. 552)

Eco drive mode
Use Eco drive mode to help achieve low fuel consumption during trips that
involve frequent accelerating.

When not in Eco drive mode, if the driving mode select switch is turned to the left, the

Eco drive mode indicator comes on in the meter.

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4-5. Using the driving support systems

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Sport mode

• SPORT S mode

Assists acceleration response by controlling the transmission and engine.

When not in SPORT S mode, if the driving mode select switch is turned to the

right, the “SPORT S” indicator comes on in the meter.

• SPORT S+ mode

Provides earlier downshift timing than SPORT S mode in order to maintain
a high engine speed and provides faster gear changes. This mode also
changes the steering feel, suspension control and VDIM control, making it
suitable for powerful sporty driving.

When in SPORT S mode, if the driving mode select switch is turned to the right,

the “SPORT S+” indicator comes on in the meter.

■

Operation of the air conditioning system in Eco drive mode

Eco drive mode controls the heating/cooling operations and fan speed of the air condi-

tioning system to enhance fuel efficiency. To improve air conditioning performance, per-

form the following operations:

●

Turn off eco air conditioning mode (



P. 320)

●

Adjust the fan speed (



P. 319)

●

Turn off Eco drive mode

■

Automatic operation of the seat heater during Eco drive mode

Eco drive mode controls the heating operation and fan speed of the air conditioning sys-

tem to enhance fuel efficiency. If the driving mode select switch is switched to Eco drive

mode in cold temperatures, the seat heater will be automatically operated to assist heat-

ing performance.

■

Automatic deactivation of sport mode and customized mode

If the engine switch is turned off after driving in sport mode or customized mode, the

drive mode will be changed to normal mode.

■

Driving mode pop-up display (12.3-inch display only)

When the driving mode is changed, the selected driving mode will be temporarily dis-

played on the side display. (



P. 316)

286

4-5. Using the driving support systems

BSM (Blind Spot Monitor)



The Blind Spot Monitor is a system that has 2 functions;

●

The Blind Spot Monitor function
Assists the driver in making the decision when changing lanes

●

The Rear Cross Traffic Alert function
Assists the driver when backing up

These functions use same sensors.

Switching the BSM function

The Blind Spot Monitor function and Rear Cross Traffic Alert function can be

switched on and off using the multi-information display. (



P. 287)

When switched on, the BSM indicator illuminates on the meter and the buzzer

sounds.

Outside rear view mirror indicators

Blind Spot Monitor function:

When a vehicle is detected in the blind spot, the outside rear view mirror indicator

comes on while the turn signal lever is not operated. If the turn signal lever is operated

toward the detected side, the outside rear view mirror indicator flashes.
Rear Cross Traffic Alert function:

When a vehicle approaching from the right or left rear of the vehicle is detected, the

outside rear view mirror indicators flash.

Rear Cross Traffic Alert buzzer (Rear Cross Traffic Alert function only)

When a vehicle approaching from the right or left rear of the vehicle is detected, a

buzzer sounds from behind the rear seat.



: If equipped

Summary of the Blind Spot Monitor

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4-5. Using the driving support systems

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■

The outside rear view mirror indicators visibility

When under strong sunlight, the outside rear view mirror indicator may be difficult to

see.

■

Rear Cross Traffic Alert buzzer hearing

Rear Cross Traffic Alert function may be difficult to hear over loud noises such as high

audio volume.

■

When there is a malfunction in the Blind Spot Monitor

If a system malfunction is detected due to any of the following reasons, warning mes-

sages will be displayed: (



P. 442)

●

There is a malfunction with the sensors

●

The sensors have become dirty

●

The outside temperature is extremely high or low

●

The sensor voltage has become abnormal

■

Switching the Blind Spot Monitor function and Rear Cross Traffic Alert function on and

off

Settings can be changed from

on the multi-information display (



P. 106, 114).

Press

on the meter control switch and select “BSM”.

Each time on the meter control switch is pressed, the function switches between
“On” and “Off”.

■

Certification for the Blind Spot Monitor



For vehicles sold in the U.S.A., Hawaii, Guam and Puerto Rico

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4-5. Using the driving support systems

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WARNING

■

Handling the radar sensor

●

Keep the sensor and its surrounding area on the bumper clean at all times.

●

Do not subject the sensor or surrounding area on the bumper to a strong impact. If

the sensor moves even slightly off position, the system may malfunction and vehicles

that enter the detection area may not be detected. If the sensor or surrounding area is

subject to a strong impact, always have the area inspected by your Lexus dealer.

●

Do not disassemble the sensor.

●

Do not attach accessories or stickers to the sensor or surrounding area on the

bumper.

●

Do not modify the sensor or surrounding area on the bumper.

●

Do not paint the rear bumper any color other than an official Lexus color.

One Blind Spot Monitor sensor is installed

inside the left and right side of the vehicle rear

bumper respectively. Observe the following to

ensure the Blind Spot Monitor can function

correctly.

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