2012 Lexus GS350 brake

3534-5. Using the driving support
4
Driving
GS350/250_EE (OM30C36E)
CAUTION
Cautions regarding the assist contents of the system
By means of alarms and brake control, the pre-crash safety system is
intended to assist the driver in avoiding collisions through the process of
LOOK-JUDGE-ACT. There are limits to the degree of assistance the sys-
tem can provide, so please keep in mind the following important points.
Assisting the driver in watching the road
The pre-crash safety system is only able to detect obstacles directly in
front of the vehicle, and only within a limited range. It is not a mechanism
that allows careless or inattentive driving, and it is not a system that can
assist the driver in low-visibility conditions. It is still necessary for the
driver to pay close attention to the vehicle’s surroundings.
Assisting the driver in making correct judgment
When attempting to estimate the likelihood of a collision, the only data
available to the pre-crash safety system is that from obstacles it has
detected directly in front of the vehicle. Therefore, it is absolutely neces-
sary for the driver to remain vigilant and to determine whether or not there
is a possibility of collision in any given situation.
Assisting the driver in taking action
The pre-crash safety system’s braking assist feature is designed to help
reduce the severity of a collision, and so only acts when the system has
judged that a collision is unavoidable. This system by itself is not capable
of automatically avoiding a collision or bringing the vehicle to a stop
safely. For this reason, when encountering a dangerous situation the driver
must take direct and immediate action in order to ensure the safety of all
involved.
NOTICE
Precautions for cleaning the driver monitor sensor
Gently wipe the sensor with a soft cloth to prevent damage.
Wipe any excess dirt with a cloth dampened with neutral detergent, all liq-
uids having been wringed out of the cloth. After that, wipe again with a
dry cloth.
Do not use benzene, thinner, glass cleaners, wax, etc.

3604-6. Driving tips
GS350/250_EE (OM30C36E)Perform the following according to the driving conditions:
Do not try to forcibly open a window or move a wiper that is fro-
zen. Pour warm water over the frozen area to melt the ice. Wipe
away the water immediately to prevent it from freezing.
To ensure proper operation of the climate control system fan,
remove any snow that has accumulated on the air inlet vents in
front of the windshield.
Check for and remove any excess ice or snow that may have
accumulated on the exterior lights, vehicle’s roof, chassis, around
the tires or on the brakes.
Remove any snow or mud from the bottom of your shoes before
getting in the vehicle.
Accelerate the vehicle slowly, keep a safe distance between you
and the vehicle ahead, and drive at a reduced speed suitable to road
conditions.
Park the vehicle and move the shift lever to P without setting the
parking brake. The parking brake may freeze up, preventing it from
being released. If necessary, block the wheels to prevent inadver-
tent sliding or creeping.
Before driving the vehicle
When driving the vehicle
When parking the vehicle

4755-3. Using the audio system
5
Interior features
GS350/250_EE (OM30C36E)
Playing DVD video
For safety reasons, you can enjoy the visual contents of discs only
when the vehicle is completely stopped with the engine switch in
ACCESSORY or IGNITION ON mode and the parking brake
applied. While driving in DVD video mode, only the DVD’s audio
can be heard.
When a DVD video disc is inserted while driving, the audio con-
tents of the main feature will automatically be played. However,
some discs may not be played from the main story.
Press the “MEDIA” button if a disc has already been loaded in the
disc slot.
Select the “DISC” tab or press the “MEDIA” button repeatedly
until the “DISC” tab is selected.

4765-3. Using the audio system
GS350/250_EE (OM30C36E)Menu screen appears
Option screen appears (P. 477)
Display menu control key (P. 478)
Vehicle is completely stopped and the parking brake is applied,
the video screen returns
Rewind
Stop
Pause
Select to play
Fast forward
If is selected, while watching a DVD, the DVD controls will appear.
If appears on the screen when a control is selected the operation
relevant to the control is not permitted.
Control icon screen
For 8-inch displayFor 12.3-inch display
12
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4775-3. Using the audio system
5
Interior features
GS350/250_EE (OM30C36E)Select “Options” on “DVD” screen, the following screen appears.
Returns to the full screen (only when the vehicle is completely
stopped and the parking brake is applied)
Search by title/group number
Change audio language
Change angle
Display the predetermined scene and start playing from there
Change subtitle language
Change screen size
Display the image quality adjustment screen
Change initial setting
If appears on the screen when a control is selected the operation
relevant to the control is not permitted.
Select and hold or on the control icon screen.
DVD options screen
For 8-inch displayFor 12.3-inch display
Fast forwarding/rewinding a disc
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3
4
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7
8
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6526-2. Maintenance
GS350/250_EE (OM30C36E)
Where to go for service?
In order to maintain your vehicle in the best possible condition, Lexus rec-
ommends that all repairs and service operations be carried out by authorized
Lexus dealers or repairers or other duly qualified and equipped professionals.
For repairs and services covered by your warranty, please visit an authorized
Lexus dealer or repairer, who will use genuine Lexus parts in repairing any
difficulties you may encounter. There can also be advantages in utilizing
authorized Lexus dealers or repairers for non-warranty repairs and services,
as members of the Lexus network will be able to expertly assist you with any
difficulties you may encounter.
Your Lexus dealer or repairer, or another duly qualified and equipped profes-
sional will perform all of the scheduled maintenance on your vehicle reliably
and economically due to their experience with Lexus vehicles.
Does your vehicle need repairs?
Be on the alert for changes in performance and sounds, and visual tip-offs
that indicate service is needed. Some important clues are:
Engine missing, stumbling or pinging
Appreciable loss of power
Strange engine noises
A fluid leak under the vehicle (However, water dripping from the air condi-
tioning system after use is normal.)
Change in exhaust sound (This may indicate a dangerous carbon monoxide
leak. Drive with the windows open and have the exhaust system checked
immediately.)
Flat-looking tires, excessive tire squeal when cornering, uneven tire wear
Vehicle pulls to one side when driven straight on a level road
Strange noises related to suspension movement
Loss of brake effectiveness, spongy feeling brake pedal, pedal almost
touches the floor, vehicle pulls to one side when braking
Engine coolant temperature continually higher than normal (P. 9 9 )
If you notice any of these clues, take your vehicle to any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional as
soon as possible. Your vehicle may need adjustment or repair.

655 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS350/250_EE (OM30C36E)
Light bulbs (P. 722)
• Bulb with same number and watt-
age rating as original
• Phillips-head screwdriver
• Flathead screwdriver
•Wrench
Radiator and condenser (P. 667)
Tire inflation pressure (P. 691)• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d (P. 671)
• Water or washer fluid containing
antifreeze (for winter use)
• Funnel (used only for adding
water or washer fluid)
CAUTION
The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become electrically energized. To avoid death
or serious injury, observe the following precautions.
When working on the engine compartment
Keep hands, clothing and tools away from the moving fan and engine
drive belt.
Be careful not to touch the engine, radiator, exhaust manifold, etc. right
after driving as they may be hot. Oil and other fluids may also be hot.
Do not leave anything that may burn easily, such as paper and rags, in the
engine compartment.
Do not smoke, cause sparks or expose an open flame to fuel or the battery.
Fuel and battery fumes are flammable.
Be extremely cautious when working on the battery. It contains poisonous
and corrosive sulfuric acid.
Take care because brake fluid can harm your hands or eyes and damage
painted surfaces. If fluid gets on your hands or in your eyes, flush the
affected area with clean water immediately.
If you still experience discomfort, consult a doctor.
ItemsParts and tools

6566-3. Do-it-yourself maintenance
GS350/250_EE (OM30C36E)
CAUTION
When working near the electric cooling fans or radiator grille
Be sure the engine switch is off.
With the engine switch in IGNITION ON mode, the electric cooling fans
may automatically start to run if the air conditioning is on and/or the cool-
ant temperature is high. (P. 667)
Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc.
from getting in your eyes.
NOTICE
If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine
wear due to dirt in the air. Also, a backfire could cause a fire in the engine
compartment.
If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads
wear or when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, it may indicate a serious problem.