ignition Lexus IS350 2021 Owner's Manual / LEXUS 2021 IS300, IS350 OWNER'S MANUAL QUICK GUIDE (OM53F18U)

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1Check that the parking brake is set.
2Check that the shift lever is in P.
3Firmly depress the brake pedal.
and a message will be displayed on the multi-information display.
If it is not displayed, th e engine cannot be started.
4Press the engine switch shortly and
firmly.
When operating the engine switch,
one short, firm press is enough. It is not
necessary to press and hold the switch.
The engine will crank until it starts or
for up to 30 seconds, whichever is less.
Continue depressing the brake pedal
until the engine is completely started.
The engine can be started from any
engine switch mode.
1Stop the vehicle.
2Set the parking brake, and shift the shift lever to P.
3Press the engine switch.
4Release the brake pedal and check that the display on the meters is off.
Engine (Ignition) Switch
Performing the following operations when ca rrying the electronic key on your person
starts the engine or changes engine switch modes.
Starting the engine
Stopping the engine

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Modes can be changed by pressing the engine switch with brake pedal released. (The mode
changes each time the switch is pressed.)
1Off*
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 thanP when turning off the engine, the
engine switch will be turned to ACCES-
SORY mode, not to off.
Changing engine switch modes

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U.S.A.
Canada
1 The side marker, parking, tail,
license plate, inst rument panel lights,
and daytime running lights turn on.
2 The headlights and all lights listed
above (except daytime running lights)
turn on.
3 The headlights, parking lights,
daytime running lights and all the lights
listed above turn on and off automati-
cally. (When the engine switch is in
IGNITION ON mode.)
4 (U.S.A.) Off
1With 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.
Headlights
A
B
Turning on the high beam headlights

What to do if...
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1Ensure that the shift lever is in P and
depress the brake pedal.
2Touch the Lexus emblem side of the
electronic key to the engine switch.
When the electronic key is detected, a
buzzer sounds and the engine switch
will turn to IGNITION ON mode.
When the smart access system with
push-button start is deactivated in cus-
tomization setting, the engine switch
will turn to ACCESSORY mode.
3Firmly depress the brake pedal and check th at is shown on the multi-information
display.
4Press the engine switch.
In the event that the engine still cannot be started, contact your Lexus dealer.
Starting the engine
If the electronic key battery becomes deplet ed, a warning message will be shown on the
multi-information display. Replac e the battery with a new one. For instructions on replacing
the battery, refer to the “OWNER’S MANUAL”.
If you need further assistance , contact your Lexus dealer.