2021 LEXUS IS300 ignition

1364-2. Driving procedures
Modes can be changed by pressing
the engine switch with brake pedal released. (The mode changes each
time the switch is pressed.)
1
Off
*
The emergency flashers can be used.
The multi-information display will not be
displayed.
2ACCESSORY mode
Some electrical components such as the
audio system can be used.
“ACCESSORY” will be displayed on the
meters.
3IGNITION ON mode
All electrical components can be used.
“IGNITION ON” will be displayed on the
meters.
*: If the shift lever is in a position other than
P when turning off the engine, the
engine switch will be turned to ACCES-
SORY mode, not to off.
■Auto power off function
If the vehicle is left in ACCESSORY mode
for more than 20 minutes or IGNITION
ON mode (with the engine not running) for
WARNING
■Stopping the engine in an emergency
If you want to stop the engine in an emer-
gency while driving the vehicle, press
and hold the engine switch for more than
2 seconds, or press it briefly 3 times or
more in succession. ( P.328)
However, do not touch the engine switch
while driving except in an emergency.
Turning the engine of f while driving will
not cause loss of steering or braking con-
trol, 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.
■When parking
Exhaust gases include harmful carbon
monoxide (CO), which is colorless and
odorless. Observe the following precau-
tions.
Failure to do so may cause exhaust gases
to enter the vehicle and may lead to an
accident caused by light-headedness, or
may lead to death or a serious health
hazard.
●If the vehicle is in a poorly ventilated
area or a closed area, such as a
garage, stop the engine.
●Do not leave the vehicle with the
engine running for a long time. If such
a situation cannot be avoided, park the
vehicle in an open space and ensure
that exhaust fumes do not enter the
vehicle interior.
●Do not leave the engine running in an
area with snow build-up, or where it is
snowing. If snowbanks build up around
the vehicle while the engine is running,
exhaust gases may collect and enter
the vehicle.
Changing engine switch modes

1374-2. Driving procedures
4
Driving
more than an hour with the shift lever in P,
the engine switch will automatically turn off.
However, this function cannot entirely pre-
vent battery discharge. Do not leave the
vehicle with the engine switch in ACCES-
SORY or IGNITION ON mode for long
periods of time when the engine is not run-
ning.
If the engine is stopped with the shift
lever in a position other than P, the
engine switch will not be turned off but
instead be turned to ACCESSORY
mode. Perform the following proce-
dure to turn the switch off:
1Check that the parking brake is set.
2 Shift the shift lever to P.
3 Check that “Turn Power Off” is dis-
played on the multi-information dis-
play and then press the engine
switch once.
4 Check that “Turn Power Off” on the
multi-information display is off.
NOTICE
■To prevent battery discharge
●Do not leave the engine switch in
ACCESSORY or IGNITION ON
mode for long period s of time without
the engine running.
●If “ACCESSORY” or “IGNITION
ON” is displayed on the meters while
the engine is not running, the engine
switch is not off. Exit the vehicle after
turning the engine switch off.
When stopping the engine with
the shift lever in a position other
than P
NOTICE
■To prevent battery discharge
Do not stop the engine when the shift
lever is in a position other than P. If the
engine is stopped in another shift lever
position, the engine switch will not be
turned off but instead be turned to
ACCESSORY mode. If the vehicle is left
in ACCESSORY mode, battery dis-
charge may occur.

1394-2. Driving procedures
4
Driving
While the engine switch is in IGNI-
TION ON mode, move the shift lever
with the brake pedal depressed.
When shifting the shift lever between P
and D, make sure that the vehicle is com-
pletely stopped.
■Shift lock system
The shift lock system is a system to prevent
accidental operation of the shift lever in
starting.
The shift lever can be shifted from P only
when the engine switch is in IGNITION
ON mode and the brake pedal is being
depressed.
■If the shift lever cannot be shifted from P
First, check whether the brake pedal is
being depressed.
If the shift lever cannot be shifted with your
foot on the brake pedal, there may be a
problem with the shift lock system. Have the
vehicle inspected by your Lexus dealer
immediately.
The following steps may be used as an emergency measure to ensure that the shift
lever can be shifted.
Releasing the shift lock:
1
Set the parking brake. ( P.145)
2 Turn the engine switch to off.
3 Depress the brake pedal.
4 Pry the cover up with a flathead screw-
driver or equivalent tool.
To prevent damage to the cover, cover the
tip of the screwdriver with a rag.
5 Press the shift lock override button.
The shift lever can be shifted while the but-
ton is pressed.
Shifting the shift lever
WARNING
■To prevent an accident when releas-
ing the shift lock
Before pressing the shift lock override
button, make sure to set the parking
brake and depress the brake pedal.
If the accelerator pe dal is accidentally
depressed instead of the brake pedal
when the shift lock override button is
pressed and the shift lever is shifted out
of P, the vehicle may suddenly start, pos-
sibly leading to an accident resulting in
death or serious injury.

1434-2. Driving procedures
4
Driving
■Turn signals can be operated when
The engine switch is in IGNITION ON
mode.
■If the indicator flashes faster than usual
Check that a light bulb in the front or rear
turn signal lights has not burned out.
■If the turn signals stop flashing before a
lane change has been performed
Operate the lever again.
■Customization
Some functions can be customized.
(  P.394)
■Using the manual mode
The parking brake can be set and
released manually.
U.S.A.
Canada
1 Push the switch to set the parking
brake
The parking brake indi cator light will turn
Parking brake
The parking brake can be set or
released automatically or manually.
In automatic mode, the parking
brake can be set or released auto-
matically according to the shift
lever operation. Also, even in auto-
matic mode, the parking brake can
be set or released manually.
Operating instructions
A
B

1454-2. Driving procedures
4
Driving
system warning light is not illuminated.
If the automatic release function does not
operate, manually release the parking
brake.
■If “Parking Brake Temporarily Unavail-
able” is displayed on the multi-informa-
tion display
If the parking brake is operated repeatedly
over a short period of time, the system may
restrict operation to prevent overheating. If
this happens, refrain from operating the
parking brake. Normal operation will return
after about 1 minute.
■If “EPB Activation Stopped Incom-
pletely” or “Parking Brake Unavailable”
is displayed on th e multi-information
display
Operate the parking brake switch. If the
message does not disappear after operat-
ing the switch several times, the system may
be malfunctioning. Have the vehicle
inspected by your Lexus dealer immedi-
ately.
■Parking brake operation sound
When the parking brake operates, a motor
sound (whirring sound) may be heard. This
does not indicate a malfunction.
■Parking brake indicator light
●Depending on the engine switch mode,
the parking brake indi cator light will turn
on and stay on as described below:
IGNITION ON mode: Comes on until
the parking brake is released.
Not in IGNITION ON mode: Stays on
for approximately 15 seconds.
●When the engine switch is turned off with
the parking brake set, the parking brake
indicator light will stay on for about 15
seconds. This does not indicate a mal-
function.
■Parking the vehicle
 P.244
■Parking brake engaged warning buzzer
A buzzer will sound if the vehicle is driven
with the parking brake engaged. “Parking
Brake ON” is displayed on the multi-infor-
mation display.
■Warning messages and buzzers
Warning messages and buzzers are used to
indicate a system malfunction or to inform
the driver of the need for caution. If a warn-
ing message is shown on the multi-informa-
tion display, read the message and follow
the instructions.
■If the brake system warning light comes
on
 P.337
■Usage in winter time
 P.243
WARNING
■When parking the vehicle
Do not leave a child in the vehicle alone.
The parking brake may be released unin-
tentionally and there is the danger of the
vehicle moving that may lead to an acci-
dent resulting in death or serious injury.
NOTICE
■When parking the vehicle
Before you leave the vehicle, shift the
shift lever to P, set the parking brake and
make sure that the vehicle does not
move.
■When the system malfunctions
Stop the vehicle in a safe place and
check the warning messages.
■When the parking brake cannot be
released due to a malfunction
Driving the vehicle with the parking
brake set will lead to brake components
overheating, which may affect braking
performance and increase brake wear.
Have the vehicle inspected by your
Lexus dealer immediately if this occurs.

1494-3. Operating the lights and wipers
4
Driving
4-3.Operating the lights and wipers
Operating the switch turns on
the lights as follows:U.S.A.
Canada
1 The side marker, parking, tail,
license plate, instrument panel
lights, and daytime running lights
( P.149) turn on.
2 The headlights and all lights
listed above (except daytime run-
ning lights) turn on.
3 The headlights, parking lights,
daytime running lights ( P.149) and all the lights listed above turn
on and off automatically. (When the
engine switch is in IGNITION ON
mode.)
4 (U.S.A.) Off
■Daytime running light system
●The daytime running lights illuminate
using the same lights as the parking lights
and illuminate brighter than the parking
lights.
●To make your vehicle more visible to
other drivers during daytime driving, the
daytime running lights turn on automati-
cally when all of the following conditions
are met. (The daytime running lights are
not designed for use at night.)
• The engine is running
• The parking brake is released
• The headlight switch is in the or
* position
*: When the surroundings are bright
The daytime running lights remain on after
they illuminate, even if the parking brake is
set again.
●For the U.S.A.: Daytime running lights
can be turned off by operating the switch.
●Compared to turning on the headlights,
the daytime running light system offers
greater durability and consumes less
electricity, so it can help improve fuel
economy.
■Headlight control sensor
The sensor may not function properly if an
object is placed on the sensor, or anything
that blocks the sensor is affixed to the wind-
shield.
Headlight switch
The headlights can be operated
manually or automatically.
Operating instructions
A
B

1504-3. Operating the lights and wipers
Doing so interferes with the sensor detect-
ing the level of ambient light and may cause
the automatic headlight system to malfunc-
tion.
■Automatic light off system
When the light switch is in , or : The headlights and tail lights turn off
30 seconds after the engine switch is
turned to ACCESSORY mode or turned
off and a door is opened and all of the doors
and trunk are closed. (The lights turn off
immediately if on the key is pressed
twice after all the doors are closed.)
To turn the lights on again, turn the engine
switch to IGNITION ON mode, or turn the
light switch off once and then back to
or .
If any of the doors or trunk lid is left open,
the lights automatically turn off after 20
minutes.
■Light reminder buzzer
A buzzer sounds when the engine switch is
turned off or turned to ACCESSORY
mode and the driver’s door is opened while
the lights are turned on.
■Automatic headlight leveling system (if
equipped)
The level of the headlights is automatically
adjusted according to the number of pas-
sengers and the loading condition of the
vehicle to ensure that the headlights do not
interfere with other road users.
■Customization
Some functions can be customized.
(  P.394)
1 With the headlights on, push the
lever away from you to turn on the
high beams.
Pull the lever toward you to the center
position to turn the high beams off.
2Pull the lever toward you and
release it to flash the high beams
once.
You can flash the high beams with the
headlights on or off.
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than
necessary when the engine is not run-
ning.
Turning on the high beam head-
lights

1524-3. Operating the lights and wipers
●The high beams may be turned off if a
vehicle ahead that is using fog lights with-
out its headlights turned on is detected.
●House lights, street lights, traffic signals,
and illuminated billboards or signs and
other reflective objects may cause the
high beams to change to the low beams,
or the low beams to remain on.
●The following factors may affect the
amount of time taken for the high beams
to turn on or off:
• The brightness of the headlights, fog lights, and tail lights of vehicles ahead
• The movement and direction of vehicles ahead
• When a vehicle ahead only has opera-
tional lights on one side
• When a vehicle ahead is a two-wheeled vehicle
• The condition of the road (gradient, curve, condition of th e road surface, etc.)
• The number of passengers and amount of
luggage in the vehicle
●The high beams may turn on or off unex-
pectedly.
●Bicycles or similar vehicles may not be
detected.
●In the following situations the system may
not be able to correctly detect the sur-
rounding brightness le vel. This may cause
the low beams to remain on or the high
beams to flash or dazzle pedestrians or
vehicles ahead. In such a case, it is neces-
sary to manually switch between the high
and low beams.
• When driving in inclement weather
(heavy rain, snow, fog, sandstorms, etc.)
• When the windshield is obscured by fog, mist, ice, dirt, etc.
• When the windshield is cracked or dam-
aged
• When the camera sensor is deformed or dirty
• When the temperature of the camera sensor is extremely high
• When the surrounding brightness level is equal to that of head lights, tail lights or
fog lights
• When headlights or tail lights of vehicles ahead are turned off, dirty, changing
color, or not aimed properly
• When the vehicle is hit by water, snow, dust, etc. from a preceding vehicle
• When driving through an area of inter- mittently changing brightness and dark-
ness
• When frequently and repeatedly driving ascending/descending roads, or roads
with rough, bumpy or uneven surfaces
(such as stone-paved roads, gravel roads,
etc.)
• When frequently and repeatedly taking curves or driving on a winding road
• When there is a highly reflective object
ahead of the vehicle, such as a sign or
mirror
• When the back of a preceding vehicle is
highly reflective, such as a container on a
truck
• When the vehicle’s headlights are dam-
aged or dirty, or are not aimed properly
• When the vehicle is listing or titling due to a flat tire, a trailer being towed, etc.
• When the headlights are changed between the high beams and low beams
repeatedly in an abnormal manner
• When the driver believes that the high beams may be flashing or dazzling
pedestrians or other drivers
■Temporarily lowering sensor sensitivity
The sensitivity of the sensor can be tempo-
rarily lowered.
1 Turn the engine switch off while the fol-
lowing conditions are met.
●The headlight switch is in or .
●The headlight switch lever is in the origi-
nal position.
●Automatic High Beam switch is on.
2 Turn the engine switch to IGNITION
ON mode.
3 Within 60 seconds after step 2 , repeat
pushing the headlight switch lever to the
high beam position then pulling it to the
original position quickly 10 times, then
leave the lever in the original position.
4 If the sensitivity is changed, the Auto-
matic High Beam indicator is turn on
and off 3 times.