2010 Lexus GX460 engine

114
GX460_U.S.A. (OM60E69U)
1-6. Theft deterrent system
Engine immobilizer system
The vehicle’s keys have built-in transponder chips that prevent the engine
from starting if a key has not been previously registered in the vehicle’s on-
board computer.
Never leave the keys inside the vehicle when you leave the vehicle.
Vehicles without a navigation system
The indicator light flashes after
the “ENGINE START STOP”
switch has been turned off to
indicate that the system is oper-
ating.
Vehicles with a navigation system The indicator light flashes after
the “ENGINE START STOP”
switch has been turned off to
indicate that the system is oper-
ating.

115
1-6. Theft deterrent system
1
Before driving
GX460_U.S.A. (OM60E69U)
■System maintenance
The vehicle has a maintenance-free type of engine immobilizer system.
■Conditions that may cause the system to malfunction
●If the grip portion of the key is in contact with a metallic object.
●If the key is in close proximity to or touching a key to the security system (key
with a built-in transponder chip) of another vehicle.
CAUTION
■Certifications for the engine immobilizer system
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If mo dified or removed, the proper operation
of the system cannot be guaranteed.

117
1-6. Theft deterrent system
1
Before driving
GX460_U.S.A. (OM60E69U)
Vehicles with a navigation systemClose the doors, glass hatch
and hood, and lock all the doors.
The system will be set automati-
cally after 30 seconds.
The indicator light changes from
being on to flashing when the
system is set.
■Deactivating or stopping the alarm
Do one of the following to deactivate or stop the alarms:
●Unlock the doors.
● Start the engine. (The alarm will be deactivated or stopped after a
few seconds.)

138
1-7. Safety information
GX460_U.S.A. (OM60E69U)
Deactivating the curtain shield airbags in a vehicle rolloverON/OFF (Hold for a few seconds)
The “RSCA OFF” indicator light
turns on. (Only when the engine
switch is in the “ON” position.)

166
GX460_U.S.A. (OM60E69U)
2-1. Driving proceduresDriving the vehicle ................. 168
Engine (ignition) switch ......... 179
Automatic transmission ........ 186
Turn signal lever....................... 192
Parking brake........................... 193
Horn............................................ 194
2-2. Instrument cluster Gauges and meters................ 195
Indicators and warning 
lights ......................................... 198
Multi-information display 
(Optitron meters) ............... 204
Multi-information display 
(Accessory meters) ............. 212
2-3. Operating the lights and 
windshield wipers
Headlight switch .................... 220
Automatic High Beam ......... 226
Fog light switch ....................... 233
Windshield wipers and 
washer .................................... 235
Rear window wiper and 
washer .................................... 239
Headlight cleaner switch ..... 241
When driving2

168
GX460_U.S.A. (OM60E69U)
2-1. Driving procedures
Driving the vehicle
The following procedures should be observed to ensure safe driving:
■Starting the engine
 P. 1 7 9
■ Driving
With the brake pedal depressed, shift the shift lever to D. 
( P. 1 8 6 )
Release the parking brake. ( P. 193)
Gradually release the brake pedal and gently depress the
accelerator pedal to accelerate the vehicle.
■ Stopping
With the shift lever in D, depress the brake pedal.
If necessary, set the parking brake.
If the vehicle is to be stopped for an extended period of time, shift the
shift lever to P or N. ( P. 1 8 6 )
■Parking the vehicle
With the shift lever in D, depress the brake pedal.
Set the parking brake. ( P. 1 9 3 )
Shift the shift lever to P. ( P. 1 8 6 )
If parking on a hill, block the wheels as needed.
Press the “ENGINE START STOP” switch to stop the engine.
Lock the door, making sure that you have the key on your per-
son.
STEP1
STEP2
STEP3
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2-1. Driving procedures
2
When driving
GX460_U.S.A. (OM60E69U)
CAUTION
■When starting the vehicle
Always keep your foot on the brake pedal while stopped with the engine running.
This prevents the vehicle from creeping.
■When driving the vehicle
●Do not drive if you are unfamiliar with the location of the brake and accelerator
pedals to avoid depressing the wrong pedal.
• Accidentally depressing the accelerator pedal instead of the brake pedal will result in sudden acceleration that may lead to an accident that could result in
death or serious injury.
• When backing up, you may twist your body around, leading to a difficulty in
operating the pedals. Make sure to operate the pedals properly.
• Make sure to keep a correct driving posture even when moving the vehicle only slightly. This allows you to depress the brake and accelerator pedals
properly.
• Depress the brake pedal using your right foot. Depressing the brake pedal using your left foot may delay response in an emergency, resulting in an acci-
dent.
●Do not drive the vehicle over or stop the vehicle near flammable materials. The
exhaust system and exhaust gases can be extremely hot. These hot parts may
cause a fire if there is any flammable material nearby.
●Do not let the vehicle roll backwards while the shift lever is in a driving position, or
roll forward while the shift lever is in R. 
Doing so may cause the engine to stall or lead to poor brake and steering perfor-
mance, resulting in an accident or damage to the vehicle.

172
2-1. Driving procedures
GX460_U.S.A. (OM60E69U)
CAUTION
■When driving the vehicle
●If the smell of exhaust is noticed inside the vehicle, open the windows and check
that the back door is closed. 
Large amounts of exhaust in the vehicle can cause driver drowsiness and an acci-
dent, resulting in death or a serious health hazard. Have the vehicle inspected by
your Lexus deal er immediately.
●Do not shift the shift lever to P while the vehicle is moving. 
Doing so can damage the transmission and may result in a loss of vehicle control.
●Do not shift the shift lever to R while the vehicle is moving forward. 
Doing so can damage the transmission and may result in a loss of vehicle control.
●Do not shift the shift lever to D while the vehicle is moving backward. 
Doing so can damage the transmission and may result in a loss of vehicle control.
●Moving the shift lever to N while the vehicle is moving will disengage the engine
from the transmission. Engine braking is not available when N is selected.
●During normal driving, do not turn off the engine. Turning the engine off while
driving will not cause loss of steering or braking control, but the power assist to
these systems will be lost. This will make it more difficult to steer and brake, so you
should pull over and stop the vehicle as soon as it is safe to do so. 
However, in the event of an emergency, such as if it becomes impossible to stop
the vehicle in the normal way: P. 6 8 6
●Use engine braking (downshift) to maintain a safe speed when driving down a
steep hill. 
Using the brakes continuously may cause the brakes to overheat and lose effec-
tiveness. ( P. 1 8 7 )
●Do not adjust the positions of the steering wheel, the seat, or the inside or outside
rear view mirrors while driving. 
Doing so may result in a loss of vehicle control that can cause accidents, resulting
in death or serious injury.