Lexus GS 350 Owner's Manual page 157

Starting off on a steep uphill
Make sure that the parking brake is set and shift the shift lever to D.
1
Gently depress the accelerator pedal.
2
Release the parking brake.
3
When starting off on a uphill
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The hill-start assist control is available. (→P. 276)
Driving in the rain
■
Drive carefully when it is raining, because visibility will be reduced, the windows
●
may become fogged-up, and the road will be slippery.
Drive carefully when it starts to rain, because the road surface will be especially
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slippery.
Refrain from high speeds when driving on an expressway in the rain, because there
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may be a layer of water between the tires and the road surface, preventing the
steering and brakes from operating properly.
Engine speed while driving
■
In the following conditions, the engine speed may become high while driving. This is
due to automatic up-shifting control or down-shifting implementation to meet driv-
ing conditions. It does not indicate sudden acceleration.
The vehicle is judged to be driving uphill or downhill
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When the accelerator pedal is released
●
When sport mode is selected (→P. 263)
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4-1. Before driving
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4