2016 Lexus GS300h turn signal

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4-5. Using the driving support systems
Driving
GS450h_300h_OM_OM30F00E_(EE)
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 Crossing 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 Crossing Traffic Alert function can be
switched on and off using the multi-information display. ( →P. 3 3 4 )
When switched on, the BSM indicator il luminates 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 and the outside rear view mirror
indicator flashes while the turn signal lever is operated.
Rear Crossing 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 Crossing Traffic Alert buzzer (Rear Crossing 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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3454-5. Using the driving support systems
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Driving
GS450h_300h_OM_OM30F00E_(EE)
◆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 accordance with
steering wheel movement
◆Hill-start assist control
Helps to prevent the vehicle from rolling backward when starting on an
incline.
◆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
helps riding comfort with superior steering stability, and helps good vehicle
posture
When SPORT S+ mode is selected by the driving mode select switch, the
damping force is suitable for sporty driving ( →P. 3 3 1 )
◆LDH (Lexus Dynamic Handling system) (if equipped)
Provides independent control of th e 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 operation and vehicle speed
◆VDIM (Vehicle Dynamics Integrated Management)
Provides integrated control of the ABS, brake assist, TRC, VSC, hill-start
assist control, EPS, VGRS (if equipped) and DRS (if equipped) systems
Helps to maintain vehicle stability when swerving on slippery road surfaces by
controlling the brakes, hybrid system output, steering assist, and steering ratio
and rear wheel angle
◆Emergency brake signal
When the brakes are applied suddenly, the stop lights automatically flash to
alert the vehicle behind

3494-5. Using the driving support systems
4
Driving
GS450h_300h_OM_OM30F00E_(EE)
■Automatic system cancelation of hill-start assist control
The hill-start assist control will be canceled in any of the following situations;
●The shift lever is shifted to N or P.
●The accelerator pedal is depressed.
●The parking brake is engaged.
●Approximately 2 seconds elapse after the brake pedal is released.
■Operating conditions of emergency brake signal
When the following three conditions are me t, the emergency brake signal will operate:
●The emergency flashers are off.
●Actual vehicle speed is over 55 km/h (35 mph).
●The brake pedal is depressed in a manner that cause the system to judge from the vehi-
cle deceleration that this is a sudden braking operation.
■Automatic system cancelation of emergency brake signal
The emergency brake signal will turn off in any of the following situations:
●The emergency flashers are turned on.
●The brake pedal is released.
●The system judges from the vehicle deceleration that is not a sudden braking operation.
WA R N I N G
■The ABS does not operate effectively when
●The limits of tire gripping performance have been exceeded (such as excessively
worn tires on a snow covered road).
●The vehicle hydroplanes while driving at high speed on wet or slick roads.
■Stopping distance when the ABS is operat ing may exceed that of normal conditions
The ABS is not designed to shorten the vehi cle’s stopping distance. Always maintain a
safe distance from the vehicle in front of you, especially in the following situations:
●When driving on dirt, gravel or snow-covered roads
●When driving with tire chains
●When driving over bumps in the road
●When driving over roads with potholes or uneven surfaces
■TRC may not operate effectively when
Directional control and power may not be achievable while driving on slippery road
surfaces, even if the TRC system is operating.
Drive the vehicle carefully in conditions where stability and power may be lost.
■Hill-start assist control does not operate effectively when
●Do not overly rely on the hill-start assist control. The hill-start assist control may not
operate effectively on steep inclines and roads covered with ice.
●Unlike the parking brake, hill-start assist co ntrol is not intended to hold the vehicle
stationary for an extended period of time. Do not attempt to use hill-start assist con-
trol to hold the vehicle on an incline, as doing so may lead to an accident.

4366-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30F00E_(EE)
■When rotating the tires (vehicles with the tire pressure warning system featuring a tire
inflation pressure display function)
Make sure that the power switch is off. If the tires are rotated while the power switch is in
ON mode, the tire position information will not be updated.
If this accidentally occurs, either turn the power switch to off and then to ON mode, or
initialize the system after checking that the tire pressure is properly adjusted.
■Low profile tires (except 225/50R17 tires)
Generally, low profile tires will wear more rapidly and tire grip performance will be
reduced on snowy and/or icy roads when compared to standard tires. Be sure to use
snow tires or tire chains on snowy and/or icy roads and drive carefully at a speed appro-
priate for road and weather conditions. ( →P. 3 5 5 )
■If the tread on snow tires wears down below 4 mm (0.16 in.)
The effectiveness of the tire s as snow tires is lost.
■Situations in which the tire pressure warning system may not operate properly (vehi-
cles with the tire pressure warning system)
●In the following cases, the tire pressure warning system may not operate properly.
• If non-genuine Lexus wheels are used.
• A tire has been replaced with a tire that is not an OE (Original Equipment) tire.
• A tire has been replaced with a tire that is not of the specified size.
• Tire chains etc. are equipped.
• An auxiliary-supported run-flat tire is equipped.
• If a window tint that affects the radio wave signals is installed.
• If there is a lot of snow or ice on the vehicle, particularly around the wheels or wheel
housings.
• If the tire inflation pressure is extremely higher than the specified level.
• If wheel without the tire pressure warning valve and transmitter are used.
• If the ID code on the tire pressure warning valves and transmitters is not registered in the tire pressure warning computer.
●Performance may be affected in the following situations.
• Near a TV tower, electric power plant, gas station, radio station, large display, air-
port or other facility that generates strong radio waves or electrical noise
• When carrying a portable radio, cellular phone, cordless phone or other wireless communication device
Vehicles with the tire inflation pressure display function: If tire position information is
not correctly displayed due to the radio wave conditions, the display may be corrected
by driving and changing the radio wave conditions.
●When the vehicle is parked, the time taken for the warning to start or go off could be
extended.
●When tire inflation pressure declines rapidly for example when a tire has burst, the
warning may not function.

4586-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30F00E_(EE)
Light bulbs
Check the wattage of the light bulb to be replaced. ( →P. 5 7 8 )
→ P. 4 2 1
Front turn signal light (vehicles with single-beam headlights)
Outer foot light
You may replace the following bulbs by yourself. The difficulty level of replace-
ment varies depending on the bulb. As there is a danger that components may
be damaged, we recommend that replacement is carried out by any autho-
rized Lexus dealer or repairer, or an other duly qualified and equipped profes-
sional.
Preparing for light bulb replacement
Removing the engine compartment covers
Bulb locations
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459 6-3. Do-it-yourself maintenance
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Maintenance and care
GS450h_300h_OM_OM30F00E_(EE)
■Front turn signal light (vehicles with single-beam headlights)For the lef t side only: Remove the
bolt and move the washer fluid
filler opening.
Turn the bulb base counterclock-
wise.
Remove the light bulb.
Replacing light bulbs
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463 6-3. Do-it-yourself maintenance
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Maintenance and care
GS450h_300h_OM_OM30F00E_(EE)
Install the visor cover on the mir-
ror frame, secure it with a screw,
and install the side turn signal light
and outer foot light.
Use only the screw position shown in
the illustration.
Side turn signal light: Align the tabs
on the light and the cover and install.
Outer foot light: Interlock the tabs in
the groove of the light body with
those on the cover, and secure.
Disconnect the tabs, and sepa-
rate the top and bottom of the
rear side cover of the mirror.
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4646-3. Do-it-yourself maintenance
GS450h_300h_OM_OM30F00E_(EE)
Install the cover of the back end
of the mirror, installing the lower
side and the upper side in that
order.
When installing the lower side of the
cover, insert the side turn signal light
pin into the hole in the cover.
Secure the cover with screws and
reconnect the connectors back
together.
Secure the cords by returning them
to the hooks as they were.
Align the tabs, and secure the
mirror by pushing in each diago-
nally-opposite pair of tabs in
order.
Make sure to insert the tabs in order
as shown in the illustration, and push
them in until a click is heard.
If you do not hear the click, do not
force the tabs in. Instead, remove the
mirror and check that the tabs are
aligned.
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