2018 Lexus GX460 engine

GX460_OM_OM60Q09U_(U)
1974-2. Driving procedures
4
Driving
■Driving on a downhill
On declines, there may be case where the vehicle shifts down automatically to obtain
engine braking. As a result of the down shifting, the engine speed may increase.
■Second start mode automatic deactivation
Second start mode is automatically deactivated if the engine is turned off after driving in
second start mode.
■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 shifts the gear to the suitable position according to driver perfor-
mance and driving conditions.
AI-SHIFT automatically operates when the shift lever is in the D position. (Shifting the
shift lever to the S position 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. 225, 228)
■Shift lock system
The shift lock system is a system to prevent ac cidental operation of the shift lever in start-
ing.
The shift lever can be shifted from P only when the engine switch is in the IGNITION ON
mode and the brake pedal is being depressed.

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GX460_OM_OM60Q09U_(U)4-2. Driving procedures
■If the shift lever cannot be shifted from P
First, check whether the brak
e pedal is being depressed.
If the shift lever cannot be shifted with your foot on the brake pedal, there may be a prob-
lem with the shift lock system. Have the vehicle inspected by your Lexus dealer, immedi-
ately.
The following steps may be used as an emergency measure to ensure that the shift lever
can be shifted.
Releasing the shift lock: Set the parking brake.
Turn the engine switch off.
Depress the brake pedal.
■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 your Lexus dealer immediately.
(In this situation, the transmission will operat e in the same manner as when the shift lever
is in D.)
■Downshift restriction warning buzzer (S mode)
To help ensure safety and driving performance, downshifti ng operation may sometimes
be restricted. In some circum stances, downshifting may not be possible even when the
shift lever is operated. (A buzzer will sound twice.) Pry the cover up with
a flathead screwdriver
or tool.
Press the shift lock override button.
The shift lever can be shifted while the button
is pressed.
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GX460_OM_OM60Q09U_(U)
1994-2. Driving procedures
4
Driving
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 skid, resulting in an
accident.
■To prevent an accident wh en releasing the shift lock
Before pressing the shift lock override butto n, make sure to set the parking brake and
depress the brake pedal.
If the accelerator pedal is accidentally depressed instead of the brake pedal when the
shift lock override button is pressed and the shift lever is shifted out of P, the vehicle
may suddenly start, possibly leading to an a ccident resulting in death or serious injury.

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GX460_OM_OM60Q09U_(U)4-2. Driving procedures
Turn signal lever
The turn signal lever can be used to show
the following intentions of the driver:
Right turn
Lane change to the right (push and
hold the lever partway)
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.
Left turn
■Turn signals can be operated when
The engine switch is in IGNITION ON mode.
■If the indicator flashes faster than usual
Check that a light bulb in the front or rear turn signal lights has not burned out.
Operating instructions
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GX460_OM_OM60Q09U_(U)4-3. Operating the lights and wipers
Headlight switch
Turning the end of the lever turns on the lights as follows:
Type A
The headlights, parking
lights, daytime running
lights (→ P. 204) and so on
turn on and off automati-
cally (when the engine
switch is in IGNITION ON
mode).
The side marker, parking,
tail, license plate, instrument
panel lights, and daytime
running lights ( →P. 204)
turn on.
The headlights and all the
lights listed above (except
daytime running lights) turn
on.
The daytime running lights
turn off.
The headlights can be operated manually or automatically.
Operating instructions
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GX460_OM_OM60Q09U_(U)
2034-3. Operating the lights and wipers
4
Driving
Type BThe daytime running lights
turn on. (→ P. 204)
The side marker, parking,
tail, license plate, instrument
panel lights, and daytime
running lights ( →P. 204)
turn on.
The headlights and all lights
listed above (except day-
time running lights) turn on.
The headlights, parking
lights, daytime running
lights (→ P. 204) and so on
turn on and off automati-
cally (when the engine
switch is in IGNITION ON
mode).
With the headlights on, push the
lever away from you to turn on the
high beams.
When the light switch is in “AUTO” posi-
tion, the Automatic High Beam system
will be activated. ( →P. 206)
Pull the lever toward you to the center
position to turn the high beams off.
Pull the lever toward you and release
it to flash the high beams once.
You can flash the high beams with the headlights on or off.
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Turning on the high beam headlights
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GX460_OM_OM60Q09U_(U)4-3. Operating the lights and wipers
■Daytime running light system
●The daytime running lights illuminate using th
e same lights as the parking lights and illu-
minate brighter than the parking lights.
●To make your vehicle more visible to other drivers during daytime driving, the daytime
running lights turn on automatically when a ll of the following conditions are met. (The
daytime running lights are not designed for use at night.)
• The engine is running
• The parking brake is released
• The headlight switch is in the (type B only), or “AUTO”* position
*: When the surroundings are bright
The daytime running lights rema in on after they illuminate even if the parking brake is
set again.
●For the U.S.A.: Daytime running lights can be turned off by operating the switch.
●Compared to turning on the headlights, the daytime running light system offers greater
durability and consumes less electricity, so it can help improve fuel economy.
■Headlight control sensor
■Automatic light off system
●When only the tail lights are on: All lights turn off if the engine switch is turned to
ACCESSORY mode or turned off and the driver’s door is opened.
●When the headlights are on: A ll lights turn off 30 seconds after a door or the glass
hatch is opened and closed.
To turn the lights on again, turn the engine switch to IGNITION ON mode, or turn the
light switch once and then back to or . The sensor may not function properly if an
object is placed on the sensor, or anything that
blocks the sensor is affixed to the windshield.
Doing so interferes with the sensor detecting
the level of ambient light and may cause the
automatic headlight system to malfunction.

GX460_OM_OM60Q09U_(U)
2054-3. Operating the lights and wipers
4
Driving
■Automatic headlight leveling system
The level of the headlights is automatically adjusted according to the number of passen-
gers and the loading condition of the vehicle to ensure that the headlights do not inter-
fere with other road users.
■If the automatic headlight levelin g system warning light flashes
It may indicate a malfun ction in the system. Contact your Lexus dealer.
■Welcome lighting
If the headlight switch is turned to AUTO and the surrounding area is dark, unlocking the
doors using the smart access system with pu sh-button start or wireless remote control
will turn the parking lights and tail lights on automatically.
■Customization
Settings (e.g. light sensor sensitivity) can be changed.
(Customizable features: →P. 594)
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than ne cessary when the engine is not running.