When The “-” Shift Paddle Switch Is Operated In The D Position; Automatic Deactivated Of Shift Range Selection In The D Position; Downshifting Restrictions Warning Buzzer; Snow Mode Automatic Deactivation - Lexus IS250 2009 Service Manual

When the "-" shift paddle switch is operated in the D position
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When the "-" shift paddle switch is operated in the D position, a shift range will be
automatically selected. The highest gear of the first shift range will be one gear
lower than the gear in use during normal D position driving.

Automatic deactivated of shift range selection in the D position

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Shift range selection in the D position will be deactivated in the following situations:
When the vehicle comes to a stop
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When range 6 is selected and the accelerator pedal is depressed
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If the accelerator pedal is depressed for more than a certain period of time
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Gear position display when driving
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The current gear is displayed on the multi-information display. ( P. 154)

Downshifting restrictions warning buzzer

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To help ensure safety and driving performance, downshifting operation may some-
times be restricted. In some circumstances, downshifting may not be possible even
when the shift lever or shift paddle switch is operated. (The warning buzzer will
sound twice.)
When driving with the cruise control system or dynamic radar cruise control sys-
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tem
Engine braking will not occur during shift range selection in the D position or S
mode, even when downshifting to range 5 or 4. ( P. 166, 170)

Snow mode automatic deactivation

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Snow mode is automatically deactivated if the "ENGINE START STOP" switch is
turned off after driving in snow mode.
If the shift lever cannot be shifted from P
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P. 415
2-1. Driving procedures
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135