Toyota Lexusc Owner's Handbook Manual page 464

(g) If you cannot shift the selector lever
If you cannot shift the selector lever even though the brake
pedal is depressed, use the shift lock override button. For
instructions, see "If you cannot shift automatic transmission
selector lever" on page 583.
STARTING AND DRIVING
(h) Driving in snow mode
Use this mode when starting your vehicle in ice or snow.
To set the snow mode, push the switch. In the "ECT SNOW"
indicator on the instrument cluster is on. To cancel the snow
mode, push the switch again. The "ECT SNOW" indicator light
will go off when the snow mode is cancelled.
If the engine is turned off with the snow mode is on, the snow
mode is cancelled when the engine is restarted.
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