
1773-4. Adjusting the steering wheel and mirrors
3
Operation of each component
IS300h_EE(OM53B95E)
To sound the horn, press on or close
to the mark.
The steering wheel can be adjusted when (power type)
The power switch is in ACCESSORY or ON mode
*.
*: If the driver’s seat belt is fastened, the steering wheel can be adjusted regard-
less of power switch mode.
Automatic adjustment of the steering position (if equipped)
A desired steering position can be entered to memory and recalled automatically
by the driving position memory system. (P. 168)
Power easy access system (if equipped)
The steering wheel and driver’s seat move in accordance with power switch
mode and the driver’s seat belt condition. (P. 170)
Horn
CAUTION
Caution while driving
Do not adjust the steering wheel while driving.
Doing so may cause the driver to mishandle the vehicle and cause an accident,
resulting in death or serious injury.
After adjusting the steering wheel (manual type)
Make sure that the steering wheel is securely locked.
Otherwise, the steering wheel may move suddenly, possibly causing an acci-
dent, and resulting in death or serious injury. Also, the horn may not sound if
the steering wheel is not securely locked.

1793-4. Adjusting the steering wheel and mirrors
3
Operation of each component
IS300h_EE(OM53B95E)
Auto anti-glare inside rear view mirror
Responding to the level of brightness of the headlights of vehicles behind,
the reflected light is automatically reduced.
Changing automatic anti-glare
function mode
ON/OFF
When the automatic anti-glare func-
tion is in ON mode, the indicator
illuminates.
The function will set to ON mode
each time the power switch is turned
to ON mode.
Pressing the button turns the func-
tion to OFF mode. (The indicator
also turns off.)
To prevent sensor error (vehicles with auto anti-glare inside rear view mirror)
Indicator
To ensure that the sensors operate properly,
do not touch or cover them.
CAUTION
Do not adjust the position of the mirror while driving.
Doing so may lead to mishandling of the vehicle and cause an accident, result-
ing in death or serious injury.

1823-4. Adjusting the steering wheel and mirrors
IS300h_EE(OM53B95E)
Mirror angle can be adjusted when
The power switch is in ACCESSORY or ON mode.
Linked mirror function when reversing (if equipped)
When either “L” or “R” of the mirror select switch is selected, the outside rear
view mirrors will automatically angle downwards when the vehicle is reversing
in order to give a better view of the ground. To disable this function, select nei-
ther “L” nor “R”.
If the mirror angle adjustment switch is operated while the linked mirror func-
tion is in operation, the angle and position of the mirrors can be remembered,
and the mirrors will operate at the angle adjusted to the last time the linked mir-
ror function was operated.
However, because the mirrors move based on the angle they are in when the
linked mirror function is not operating, the mirror angle when the linked mirror
function is operating will also be changed if the mirrors are adjusted while the
function is not operating.
When the mirrors are fogged up
The outside rear view mirrors can be cleared using the mirror defoggers. Turn on
the rear window defogger to turn on the outside rear view mirror defoggers. (P.
404)
Automatic adjustment of the mirror angle (if equipped)
A desired mirror face angle can be entered to memory and recalled automatically
by the driving position memory. (P. 168)
Auto anti-glare function (if equipped)
When the anti-glare inside rear view mirror is set to automatic mode, the outside
rear view mirrors will activate in conjunction with the anti-glare inside rear view
mirror to reduce reflected light. (P. 179)
Using automatic mode in cold weather
When automatic mode is used in cold weather, the door mirror could freeze up
and automatic stowing and return may not be possible. In this case, remove any
ice and snow from the door mirror, then either operate the mirror using manual
mode or move the mirror by hand.
Customization
The automatic mirror folding and extending operation can be changed.
(Customizable features: P. 575)

1954-1. Before driving
4
Driving
IS300h_EE(OM53B95E)
CAUTION
Observe the following precautions.
Failure to do so may result in death or serious injury.
When starting the vehicle
Always keep your foot on the brake pedal while stopped with the hybrid system
operating. This prevents the vehicle from creeping.
When driving the vehicle
Do not drive if you are unfamiliar with the location of the brake and accelera-
tor pedals to avoid depressing the wrong pedal.
• Accidentally depressing the accelerator pedal instead of the brake pedal
will result in sudden acceleration that may lead to an accident.
• When backing up, you may twist your body around, leading to a difficulty
in operating the pedals. Make sure to operate the pedals properly.
• Make sure to keep a correct driving posture even when moving the vehicle
only slightly. This allows you to depress the brake and accelerator pedals
properly.
• Depress the brake pedal using your right foot. Depressing the brake pedal
using your left foot may delay response in an emergency, resulting in an
accident.
The driver should pay extra attention to pedestrians when the vehicle is pow-
ered only by the electric motor (traction motor). As there is no engine noise,
the pedestrians may misjudge the vehicle’s movement.
Do not drive the vehicle over or stop the vehicle near flammable materials.
The exhaust system and exhaust gases can be extremely hot. These hot parts
may cause a fire if there is any flammable material nearby.
During normal driving, do not turn off the hybrid system. Turning the hybrid
system off while driving will not cause loss of steering or braking control, but
the power assist to these systems will be lost. This will make it more difficult
to steer and brake, so you should pull over and stop the vehicle as soon as it is
safe to do so.
However, in the event of an emergency, such as if it becomes impossible to
stop the vehicle in the normal way: P. 499
Use engine braking (downshift) to maintain a safe speed when driving down a
steep hill.
Using the brakes continuously may cause the brakes to overheat and lose
effectiveness. (P. 216)
Do not adjust the positions of the steering wheel, the seat, or the inside or out-
side rear view mirrors while driving.
Doing so may result in a loss of vehicle control.
Always check that all passengers’ arms, heads or other parts of their body are
not outside the vehicle.

1964-1. Before driving
IS300h_EE(OM53B95E)
CAUTION
Observe the following precautions.
Failure to do so may result in death or serious injury.
When driving on slippery road surfaces
Sudden braking, acceleration and steering may cause tire slippage and reduce
your ability to control the vehicle.
Sudden acceleration, engine braking due to shift changing, or changes in
engine speed could cause the vehicle to skid.
After driving through a puddle, depress the brake pedal to make sure that the
brakes are functioning properly. Wet brake pads may prevent the brakes from
functioning properly. If the brakes on only one side are wet and not function-
ing properly, steering control may be affected.
When shifting the shift lever
Do not let the vehicle roll backward while the shift lever is in D or S, or roll
forward while the shift lever is in R.
Doing so may result in an accident or damage to the vehicle.
Do not shift the shift lever to P while the vehicle is moving.
Doing so can damage the transmission and may result in a loss of vehicle con-
trol.
Do not shift the shift lever to R while the vehicle is moving forward.
Doing so can damage the transmission and may result in a loss of vehicle con-
trol.
Do not shift the shift lever to D while the vehicle is moving backward.
Doing so can damage the transmission and may result in a loss of vehicle con-
trol.
Shifting the shift lever to N while the vehicle is moving will disengage the
hybrid system. Engine braking is not available when N is selected.
Be careful not to shift the shift lever with the accelerator pedal depressed.
Shifting the shift lever to a gear other than P or N may lead to unexpected
rapid acceleration of the vehicle that may cause an accident and result in
death or serious injury.
If you hear a squealing or scraping noise (brake pad wear indicators)
Have the brake pads checked and replaced by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional as soon as possi-
ble.
Rotor damage may result if the pads are not replaced when needed.
Moderate levels of brake pad and disc wear allow enhanced braking power. As
a result, the discs may wear more quickly than conventional brake discs. There-
fore, when replacing the brake pads, Lexus recommends that you also have the
thickness of the discs measured.
It is dangerous to drive the vehicle when the wear limits of the brake pads and/
or those of the brake discs are exceeded.

1994-1. Before driving
4
Driving
IS300h_EE(OM53B95E)
NOTICE
When driving the vehicle
Do not depress the accelerator and brake pedals at the same time during driv-
ing, as this may restrain driving torque.
Do not use the accelerator pedal or depress the accelerator and brake pedals at
the same time to hold the vehicle on a hill.
When parking the vehicle
Always shift the shift lever to P. Failure to do so may cause the vehicle to move
or the vehicle may accelerate suddenly if the accelerator pedal is accidentally
depressed.
Avoiding damage to vehicle parts
Do not turn the steering wheel fully in either direction and hold it there for an
extended period of time.
Doing so may damage the power steering motor.
When driving over bumps in the road, drive as slowly as possible to avoid
damaging the wheels, underside of the vehicle, etc.
If you get a flat tire while driving
A flat or damaged tire may cause the following situations. Hold the steering
wheel firmly and gradually depress the brake pedal to slow down the vehicle.
It may be difficult to control your vehicle.
The vehicle will make abnormal sounds or vibrations.
The vehicle will lean abnormally.
Information on what to do in case of a flat tire (P. 530, 544)
When encountering flooded roads
Do not drive on a road that has flooded after heavy rain etc. Doing so may
cause the following serious damage to the vehicle:
Engine stalling
Short in electrical components
Engine damage caused by water immersion
In the event that you drive on a flooded road and the vehicle is flooded, be sure
to have any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional check the following:
Brake function
Changes in quantity and quality of oil and fluid used for the engine, hybrid
transmission, differential, etc.
Lubricant condition for the propeller shaft, bearings and suspension joints
(where possible), and the function of all joints, bearings, etc.

2124-2. Driving procedures
IS300h_EE(OM53B95E)
Steering lock
After turning the power switch off and opening and closing the doors, the steer-
ing wheel will be locked due to the steering lock function. Operating the power
switch again automatically cancels the steering lock.
When the steering lock cannot be released
Steering lock motor overheating prevention
To prevent the steering lock motor from overheating, operation of the motor may
be suspended if the hybrid system is turned on and off repeatedly in a short
period of time. In this case, refrain from operating the hybrid system. After about
10 seconds, the steering lock motor will resume functioning.
When “Check Entry & Start System” is displayed on the multi-information dis-
play
The system may be malfunctioning. Have the vehicle inspected by any autho-
rized Lexus dealer or repairer, or another duly qualified and equipped profes-
sional immediately.
If the “READY” indicator does not come on
If the “READY” indicator does not come on when you press the power switch
with the shift lever in P and the brake pedal depressed, contact any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional
immediately.
If the hybrid system is malfunctioning
P. 516
If the electronic key battery is depleted
P. 545
Operation of the power switch
When operating the power switch, one short, firm press is enough. If the switch
is pressed improperly, the hybrid system may not start or the power switch
mode may not change. It is not necessary to press and hold the switch.
If attempting to restart the hybrid system immediately after turning the power
switch off, the hybrid system may not start in some cases. After turning the
power switch off, please wait a few seconds before restarting the hybrid system.
If the smart entry & start system has been deactivated by a customized setting
P. 548 “Steering Lock active” will be displayed on
the multi-information display.
Check that the shift lever is in P. Press the
power switch while turning the steering
wheel left and right.

2134-2. Driving procedures
4
Driving
IS300h_EE(OM53B95E)
CAUTION
When starting the hybrid system
Always start the hybrid system while sitting in the driver’s seat. Do not depress
the accelerator pedal while starting the hybrid system under any circumstances.
Doing so may cause an accident resulting in death or serious injury.
Caution while driving
If hybrid system failure occurs while the vehicle is moving, do not lock or open
the doors until the vehicle reaches a safe and complete stop. Activation of the
steering lock in this circumstance may lead to an accident, resulting in death or
serious injury.
Stopping the hybrid system in an emergency
If you want to stop the hybrid system in an emergency while driving the vehi-
cle, press and hold the power switch for more than 2 seconds, or press it briefly
3 times or more in succession. (P. 499)
However, do not touch the power switch while driving except in an emergency.
Turning the hybrid system off while driving will not cause loss of steering or
braking control, but the power assist to these systems will be lost. This will
make it more difficult to steer and brake, so you should pull over and stop the
vehicle as soon as it is safe to do so.
NOTICE
To prevent 12-volt battery discharge
Do not leave the power switch in ACCESSORY or ON mode for long periods
of time without the hybrid system on.
If “ACCESSORY” or “IGNITION ON” is displayed on the meters while the
hybrid system is not operating, the power switch is not off. Exit the vehicle
after turning the power switch off.
Do not stop the hybrid system when the shift lever is in a position other than
P. If the hybrid system is stopped in another shift lever position, the power
switch will not be turned off but instead be turned to ACCESSORY mode. If
the vehicle is left in ACCESSORY mode, 12-volt battery discharge may
occur.
When starting the hybrid system
Do not depress the accelerator pedal unnecessarily.
If the hybrid system becomes difficult to start, have your vehicle checked by
any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional immediately.
Symptoms indicating a malfunction with the power switch
If the power switch seems to be operating somewhat differently than usual,
such as the switch sticking slightly, there may be a malfunction. Contact any
authorized Lexus dealer or repairer, or another duly qualified and equipped
professional immediately.