Lexus GS 450h 2008 Owner's Manual page 145

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Selecting a driving mode
The following patterns can be selected to suit current driving and
operating conditions.
2-1. Driving procedures
Power mode
For powerful acceleration and
driving in mountainous regions.
Normal mode
Snow mode
For accelerating and driving on
slippery road surfaces, such as
on snow.
Press "SNOW" to return to nor-
mal mode.
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