2010 Lexus GX460 Scheduled Maintenance Guide / LEXUS 2010 GX460 OWNERS MANUAL (OM60E69U)

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2-1. Driving procedures
2
When driving
GX460_U.S.A. (OM60E69U)
NOTICE
■To prevent battery discharge
●Do not leave the “ENGINE START STOP” switch in ACCESSORY or IGNI-
TION ON mode for long periods of time without the engine running.
●If the indicator on the “ENGINE START STOP” switch is illuminated, the
“ENGINE START STOP” switch is not off. When exiting the vehicle, always
check that the “ENGINE START STOP” switch is off.
●Do not stop the engine when the shift lever is in a position other than P. If the
engine is stopped in another shift lever position, the “ENGINE START STOP”
switch will not be turned off but instead be turned to ACCESSORY mode. If the
vehicle is left in ACCESSORY mode, battery discharge may occur.
■When starting the engine
●Do not race a cold engine.
●If the engine becomes difficult to start or stalls frequently, have the engine
checked immediately.
■Symptoms indicating a malfunction with the “ENGINE START STOP” switch
If the “ENGINE START STOP” seems to be operating somewhat differently than
usual, such as the switch sticking slightly, there may be a malfunction. Contact your
Lexus dealer immediately.

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2-1. Driving procedures
GX460_U.S.A. (OM60E69U)
Automatic transmission
Select a shift position appropriate for the driving conditions.
■Shifting the shift lever
While the “ENGINE START STOP” switch is in IGNITION
ON mode, move the shift lever wi th the brake pedal depressed.
When shifting the shift lever betw een P and D, make sure that
the vehicle is completely stopped.

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2-1. Driving procedures
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When driving
GX460_U.S.A. (OM60E69U)
■Shift position purpose
*1: To improve fuel efficiency and reduce noises, set the shift lever in the D
position for normal driving.
*2: Selecting shift ranges using S mode re stricts the upper limit of the possible
gear ranges, controls engine brakin g forces, and prevents unnecessary
upshifting.
Shift positionFunction
PParking the vehicle/starting the engine
RReversing
NNeutral
DNormal driving*1
SS mode driving*2 (  P. 1 8 9 )

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2-1. Driving procedures
GX460_U.S.A. (OM60E69U)
■Selecting second start mode
Use second start mode for accelerating and driving on slippery
road surfaces such as snow.
Press the menu switch.
The multi-information display
will change modes to electronic
features control mode.
Press the “ENTER” switch
upwards or downwards until
“2ND START” appears.
Press the “ENTER” switch to
change to “ON”. 
The “2nd STRT” indicator will be
displayed.
Each pressing of the switch
turns second start mode on and
off.
Press the menu switch to
change to the normal display.
STEP1
STEP2

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2-1. Driving procedures
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When driving
GX460_U.S.A. (OM60E69U)
Changing shift ranges in S modeWhen the shift lever is in the S position, the shift lever can be operated as
follows: For upshifting
For downshifting
The initial shift range in S mode is set automatically to 5 or 4 according to
vehicle speed. However, the initial shift range may be set to 3 or 2 if AI-
SHIFT has operated while the shift lever was in the D position. 
( P. 190)
■ Shift ranges and their functions
●You can choose from 6 levels of engine braking force.
● A lower shift range will provide gr eater engine braking force than a
higher shift range, and the engi ne speed will also increase.

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2-1. Driving procedures
GX460_U.S.A. (OM60E69U)
■S mode
When the shift range is 5 or lower, holding the shift lever toward “+” sets the shift
range to 6.
■AI-SHIFT
AI-SHIFT automatically selects the optimal gear according to driver performance
and driving conditions.
AI-SHIFT automatically operates when the shift lever is in the D position. (Shifting
the shift lever to the S posi tion cancels the function.)
■When driving with the cruise contro l or dynamic radar cruise control
Engine braking will not occur in S mode, even when downshifting to 5 or 4. 
(  P. 242, 246)
■If the shift lever cannot be shifted from P
P. 7 3 6
■If the “S” indicator does not come on ev en after shifting the shift lever to S
This may indicate a malfunction in the automatic transmission system. Have the
vehicle inspected by Lexus dealer immediately. 
(In this situation, the transmission will operate in the same manner as when the shift
lever is in D.)
■Downshift restriction warning buzzer (S mode)
To help ensure safety and driving perfor mance, downshifting operation may some-
times be restricted. In some circumstances, downshifting may not be possible even
when the shift lever is operated. (A buzzer will sound twice.)

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2-1. Driving procedures
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When driving
GX460_U.S.A. (OM60E69U)
CAUTION
■When driving on slippery road surfaces
Do not accelerate or shift gears suddenly. Sudden changes in engine braking may
cause the vehicle to spin or sk id, resulting in an accident.

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2-1. Driving procedures
GX460_U.S.A. (OM60E69U)
Turn signal lever
■Turn signals can be operated when
The “ENGINE START STOP” switch is in IGNITION ON mode.
■If the indicators flash faster than usual
Check that a light bulb in the front or rear turn signal lights has not burned out.
The turn signal lever can be used to show the following intentions of the
driver:
Right turn
Left turn
Lane change to the right
(push and hold the lever part-
way)
The right hand signals will flash
until you release the lever.
Lane change to the left (push
and hold the lever partway)
The left hand signals will flash
until you release the lever.