Lexus GS350 2013 Owner's Manual

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4-5. Using the driving support systems
CAUTION
■When using the rear view monitor system
When backing up, be sure to check visually behind and all around the vehicle
before proceeding.
Observe the following precautions to avoid an accident that could result in death
or serious injuries.
●The rear view monitor system is a supplemental device intended to assist the
driver when backing up. Never depend on the rear view monitor system entirely
when backing up. Always make sure your intended path is clear.
Use caution, just as you would when backing up any vehicle.
●Never back up while looking only at the screen.
The image shown on the screen may differ from the actual state, and you could
collide with another vehicle or obstacles if backing up looking only at the screen,
possibly causing an accident. When backing up, be sure to check in front of and
behind the vehicle, both directly and with mirrors.
●Be sure to back up slowly, depressing the brake pedal to control vehicle speed.
●The instructions given are only guidelines.
When and how much to turn the steering wheel will vary according to traffic con-
ditions, road surface conditions, vehicle condition, etc. when parking. It is neces-
sary to be fully aware of this before using the rear view monitor system.
●When parking, be sure to check that the parking space will accommodate your
vehicle before maneuvering into it.
●Do not use system in the following cases:
• On icy or slick road surfaces, or in snow
• When using tire chains or the compact spare tire
• When the trunk lid is not closed completely
• On roads that are not flat or straight, such as curves or slopes.
●In low temperatures, the screen may darken or the image may become faint. The
image could distort when the vehicle is moving, or you may become unable to
see the image on the screen. Be sure to check direct visually and with mirror all
around the vehicle before proceeding.
●If the tire sizes are changed, the position of the fixation guide lines displayed on
the screen may change.
●The camera uses a special lens. The distances between objects and pedestrians
that appear in the image displayed on the screen will differ from the actual dis-
tances. (→P. 2 5 4 )

GS350_U (OM30C34U)
2614-5. Using the driving support systems
4
Driving
CAUTION
■When using the rear view monitor system screen
●The position of the fixation guide lines displayed on the screen may change in
accordance with the number of passengers, the amount of cargo etc. Be sure to
check behind and all around the vehicle direct visually and with mirror before
proceeding.
●The vehicle width extension guide lines are wider than the actual width of the
vehicle. When backing up, be sure to check behind and all around the vehicle
direct visually and with mirror before proceeding.

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4-5. Using the driving support systems
NOTICE
■How to use the camera
●The rear view monitor system may not operate properly in the following cases, or
if the precautions described below are not followed.
• If the back of the vehicle is hit, the position and mounting angle of the cameramay change.
• As the camera has a water proof construction, do not detach, disassemble or modify it. This may cause incorrect operation.
• Do not strongly rub the camera lens. If the camera lens is scratched, it cannot transmit a clear image.
• Do not allow organic solvent, car wax, window cleaner or glass coat to adhere to the camera. If this happens, wipe it off as soon as possible.
• If the temperature changes rapidly, such as when hot water is poured on the vehicle in cold weather, the system may not operate normally.
• When washing the vehicle, do not apply intensive bursts of water to the cam- era or camera area. Doing so may result in the camera malfunctioning.
• When the camera is used under fluorescent lights, sodium light or mercury light etc., the lights and the illuminated areas may appear to flicker.
●Do not expose the camera to strong impact as this could cause a malfunction. If
this happens, have the vehicle inspected by your Lexus dealer as soon as possi-
ble.

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4
Driving
Driving mode select switch
Normal mode
For normal driving.
Press the switch to change the driving mode to normal mode when selected to
Eco mode or sport mode.
Eco drive mode
Use Eco mode to help achieve low fuel consumption during trips that
involve frequent accelerating.
When the driving mode select switch is turned left, the “ECO MODE” indicator
comes on in the multi-information display.
The driving modes can be selected to suit driving condition.
Vehicles without AVS
1
2

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4-5. Using the driving support systems
Sport mode
An acceleration response suitable for sports driving is provided by con-
trolling steering response and transmission. Suitable for when precise
handling is desirable, for example when driving on mountain roads.
When the driving mode select switch is turned right, the “SPORT” indicator
comes on in the instrument cluster.
Also, on vehicles equipped with a
12.3-inch display, the driving mode is
also automatically displayed on the
“Side Display”. (→P. 3 0 8 )
3

GS350_U (OM30C34U)
2654-5. Using the driving support systems
4
Driving
Normal mode
For normal driving.
Press the switch to change the driving mode to normal mode when selected to
Eco mode or sport mode.
Eco drive mode
Use Eco mode to help achieve low fuel consumption during trips that
involve frequent accelerating.
When the driving mode select switch is turned left, the “ECO MODE” indicator
comes on in the multi-information display.
Ve h i c l e s w i t h AV S
1
2

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4-5. Using the driving support systems
Sport mode• SPORT S mode
Improves acceleration response by controlling the transmission.
Suitable for when precise handling is desirable, for example when
driving on mountain roads.
When the driving mode select switch is turned right while a made other than
SPORT S mode is selected, the “SPORT S” indicator comes on in the instru-
ment cluster.
Also, on vehicles equipped with a
12.3-inch display, the driving mode
is also automatically displayed on
the “Side Display”. ( →P. 3 0 8 )
• SPORT S+ mode
Improves steering performance and driving stability by simulta-
neously controlling the steering and suspension in addition to the
transmission. Suitable for sporty driving.
When the driving mode select switch is turned right while SPORT S mode is
selected, the “SPORT S+” indicator comes on in the instrument cluster.
Also, on vehicles equipped with a
12.3-inch display, the driving mode
is also automatically displayed on
the “Side Display”. ( →P. 3 0 8 )
3

GS350_U (OM30C34U)
2674-5. Using the driving support systems
4
Driving
■Operation of the air conditioning system in Eco drive mode
Eco drive mode controls the heating/cooling operations and fan speed of the air
conditioning system to enhance fuel efficiency. To improve air conditioning perfor-
mance, adjust the fan speed or turn off Eco drive mode. ( →P. 3 4 5 )
■Automatic operation of the seat heater during Eco drive mode
If the driving mode select switch is switched to Eco drive mode in cold temperatures,
the seat heater will be automatically operated to assist heating performance.
■Sport mode automatic deactivation
Sport mode is automatically deactivated if the engine switch is turned off after driv-
ing in sport mode.

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4-5. Using the driving support systems
Driving assist systems
◆ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenly, or if
the brakes are applied while driving on a slippery road surface
◆Brake assist
Generates an increased level of braking force after the brake pedal is
depressed when the system detects a panic stop situation
◆VSC (Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or turning
on slippery road surfaces
◆Enhanced VSC (Enhanced Vehicle Stability Control)
Provides cooperative control of the ABS, TRAC, VSC and EPS.
Helps to maintain directional stability when swerving on slippery road
surfaces by controlling steering performance.
◆TRAC (Traction Control)
Helps to maintain drive power and prevent the drive wheels from spin-
ning when starting the vehicle or accelerating on slippery roads
◆Hill-start assist control
→ P. 2 76
◆VGRS (Variable Gear Rati o Steering) (if equipped)
Adjusts the front wheel turning angle in accordance with the vehicle
speed and steering wheel movement
To help enhance driving safety and performance, the following systems
operate automatically in response to various driving situations. Be
aware, however, that these systems are supplementary and should not
be relied upon too heavily when operating the vehicle.

GS350_U (OM30C34U)
2694-5. Using the driving support systems
4
Driving
◆DRS (Dynamic Rear Steering) (if equipped)
Contributes to the turning characteristics and responsiveness of the
vehicle by slightly adjusting the rear wheel angle of the vehicle in accor-
dance with steering wheel movement.
◆EPS (Electric Power Steering)
Employs an electric motor to reduce the amount of effort needed to
turn the steering wheel
◆AVS (Adaptive Variable Suspension system) (if equipped)
By independently controlling the damping force of the shock absorbers
for each of the 4 wheels according to the road and driving conditions,
this system combines riding comfort with superior steering stability, and
ensures good vehicle posture. ( →P. 263)
◆LDH (Lexus Dynamic Handling system) (if equipped)
Provides independent control of the VGRS, DRS and EPS. Contributes
to turning characteristics at low speeds, responsiveness at medium
speeds and safety at high speeds by controlling the steering angle of
the front and rear wheels in accordance with the steering wheel opera-
tion and vehicle speed.
◆VDIM (Vehicle Dynamics Integrated Management)
Provides integrated control of the ABS, brake assist, TRAC, VSC, hill-
start assist control, EPS, VGRS (if equipped) and DRS (if equipped)
systems
Helps to maintain vehicle stability when swerving on slippery road sur-
faces by controlling the brakes, engine output, steering assist, and
steering ratio
◆PCS (Pre-Collision System) (if equipped)
→ P. 2 7 8