2012 Lexus HS 250h Owners Manual - Page 158

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Situations in which EV drive mode cannot be turned on

It may not be possible to turn EV drive mode on in the following situations. If it can-

not be turned on, a buzzer will sound and a message will be shown on the multi-

information display.

●

Vehicle speed is about 19mph (30km/h) or more.

●

The hybrid battery (traction battery) is low.

In general, the remaining battery level indicated in the “Energy Monitor” display

is level 3 or lower. (

→

P. 35)

●

The temperature of the hybrid system is high.

The vehicle has been left in the sun, driven on a hill, driven at high speeds, etc.

●

The gasoline engine is warming up.

●

The accelerator pedal is depressed firmly or the vehicle is on a hill etc.

●

The windshield defogger is in use.

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Switching to EV drive mode when the gasoline engine is cold

If the hybrid system is started while the gasoline engine is cold, the gasoline engine

will start automatically after a short period of time in order to warm up. In this case,

you will become unable to switch to EV drive mode.

After the hybrid system has started and the “READY” indicator has illuminated,

press the EV drive mode switch before the gasoline engine starts to switch to EV

drive mode.

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Automatic cancellation of EV drive mode

When driving in EV drive mode, the gasoline engine may automatically restart in

the following situations. When EV drive mode is canceled, a buzzer will sound and

the EV drive mode indicator will flash and go off.

●

The hybrid battery (traction battery) becomes low.

In general, the remaining battery level indicated in the “Energy Monitor” display

is level 2 or lower. (

→

P. 35)

●

Vehicle speed becomes more than about 19 mph (30 km/h).

●

The accelerator pedal is depressed firmly or the vehicle is on a hill etc.

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Possible driving distance when driving in EV drive mode

In EV drive mode, it is possible to drive up to about several hundred yards if driving

at a speed of about 19 mph (30 km/h) or less. (The distance that is possible

depends on the hybrid battery [traction battery] level and driving conditions.)

158

2-1. Driving procedures