Lexus GS300 - Page 209

GS350_300_GS F_OM_OM30G34U_(U)
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4-2. Driving procedures
4
Driving
■ Automatic deactivation of shift range selection in the D position
Shift range selection in the D position will be deactivated in the following situations:
● When the vehicle comes to a stop
● If the accelerator pedal is depressed for more than a certain period of time
● When the shift lever is shifted to other than D
■ To protect automatic transmission
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
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
Snow mode is automatically deactivated if the engine switch is turned off after driving in
snow mode.
■ When driving with cruise control or dynamic radar 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 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.
(→P. 258, 270)
8-speed models: While driving in the D position, downshifting to 7, 6, 5 or 4.
(→P. 258, 270)
● When switching the driving mode to sport mode while driving in D position. (→P. 273)
■ Restraining sudden start (Drive-Start Control)
● When the following unusual operation is performed, the engine output may be
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. 441)
• When the accelerator pedal is depressed too much while the vehicle is in reverse.
■ Shift lock system
The shift lock system is a system to prevent accidental operation of the shift lever in start-
ing.
The shift lever can be shifted from P only when the engine switch is in IGNITION ON
mode and the brake pedal is being depressed.