Lexus IS 350 2019 Owner's Manual page 227

If the electronic key battery is depleted
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P. 574
Operation of the engine switch
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If the switch is not pressed shortly and firmly, the engine switch mode may not change
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or the engine may not start.
If attempting to restart the engine immediately after turning the engine switch off, the
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engine may not start in some cases. After turning the engine switch off, please wait a
few seconds before restarting the engine.
If the smart entry & start system has been deactivated by a customized setting
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P. 647
WARNING
When starting the engine
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Always start the engine while sitting in the driver's seat. Do not depress the accelerator
pedal while starting the engine under any circumstances.
Doing so may cause an accident resulting in death or serious injury.
Caution while driving
■
If engine 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 cir-
cumstance may lead to an accident, resulting in death or serious injury.
Stopping the engine in an emergency
■
If you want to stop the engine in an emergency while driving the vehicle, press and hold
the engine switch for more than 2 seconds, or press it briefly 3 times or more in succes-
sion. (P. 591)
However, do not touch the engine switch while driving except in an emergency. Turning
the engine 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.
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4-2. Driving procedures
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