Lexus 2016 GS350 Owner's Manual page 207

Automatic deactivation 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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If the accelerator pedal is depressed for more than a certain period of time
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When the shift lever is shifted to other than D
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To protect automatic transmission
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When the temperature of the transmission fluid becomes high, protection control is per-
formed temporarily. When "Transmission Fluid Temp High See Owner' s Manual" is dis-
played on the multi-information display, have the vehicle inspected by your Lexus dealer.
Downshifting restrictions warning buzzer
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To help ensure safety and driving performance, downshifting operation may sometimes
be restricted. In some circumstances, downshifting may not be possible even when the
shift lever or paddle shift switch is operated. (A buzzer will sound twice.)
Snow mode automatic deactivation
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Snow mode is automatically deactivated if the engine switch is turned off after driving in
snow mode.
When driving with cruise control, dynamic radar cruise control or dynamic radar
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cruise control with full-speed range activated
Even when performing the following actions with the intent of enabling engine braking,
engine braking will not activate because cruise control, dynamic radar cruise control or
dynamic radar cruise control with full-speed range will not be canceled.
6-speed models: While driving in the D position, downshifting to 5 or 4.
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(P. 266, 278, 290)
8-speed models: While driving in the D position, downshifting to 7, 6, 5 or 4.
(P. 266, 278, 290)
When switching the driving mode to sport mode while driving in D position. (P. 293)
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Restraining sudden start (Drive-Start Control)
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When the following unusual operation is performed, the engine output may be
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restrained.
• When the shift lever is shifted from R to D, D to R, N to R, P to D, or P to R (D
includes M) with the accelerator pedal depressed, a warning message appears on
the multi-information display. (P. 459)
• When the accelerator pedal is depressed too much while the vehicle is in reverse.
If the shift lever cannot be shifted from P
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P. 517
AI-SHIFT
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The AI-SHIFT automatically selects the suitable gear according to driver performance
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and driving conditions.
The AI-SHIFT automatically operates when the shift lever is in D. (Shifting the shift
lever to the M position cancels the function.)
8-speed models: G AI-SHIFT automatically selects a suitable gear for sporty driving
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according to driver' s input and driving conditions. G AI-SHIFT operates automatically
when the shift lever is in D and sport mode is selected for the driving mode. (Selecting
normal mode with the driving mode select switch or shifting the shift lever to the M
position cancels this function.)
GS350_200t_GS F_OM_OM30E86U_(U)
4-2. Driving procedures
207
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