change time Lexus GS300 2006 Starting and Driving

STARTING AND DRIVING
341 Avoid racing the engine.
Do not push−start or pull−start your vehicle.
Do not turn off the engine while the vehicle is moving.
Keep your engine in good running order.
Malfunctions in the engine electrical system,
electronic ignition system or fuel system could cause
an extremely high three−way catalytic converter
temperature.
If the engine becomes difficult to start or stalls
frequently, take your vehicle in for a check−up as
soon as possible. Remember, your Lexus dealer
knows your vehicle and its three−way catalytic
converter system best.
To ensure that the three−way catalytic converter and
the entire emission control system operate properly,
your vehicle must receive the periodic inspections
required by the Lexus Maintenance Schedule. For
scheduled maintenance information, refer to the
“Owner’s Manual Supplement / Scheduled
Maintenance”.
ENGINE EXHAUST CAUTION
CAUTION
Avoid inhaling the engine exhaust. It contains
carbon monoxide, which is a colorless and odorless
gas. It can cause unconsciousness or even death.
Make sure the exhaust system has no holes or loose
connections. The system should be checked from
time to time. If you hit something, or notice a change
in the sound of the exhaust, have the system checked
immediately.
Do not run the engine in a garage or enclosed area
except for the time needed to drive the vehicle in or
out. The exhaust gases cannot escape, making this
a particularly dangerous situation.
Do not remain for a long time in a parked vehicle with
the engine running. If it is unavoidable, however, do
so only in an unconfined area and adjust the heating
or cooling system to force outside air into the vehicle.
Keep the trunk lid closed while driving. An open or
unsealed trunk lid may cause exhaust gases to be
drawn into the vehicle.

STARTING AND DRIVING
344
NOTICE
Observe the following instructions, or the engine switch
may not work properly.
The switch should be operated with your clean finger.
Do not use an oily or dirty finger.
Be careful not to spill water or other liquid on the
switch.
Do not modify the engine switch without consulting
your Lexus dealer. Doing so may cause system
problem.
Selecting the mode
G31076
“OFF” mode
“ACC” mode
“IG−ON” mode
To select “ACC”, “IG−ON” or “OFF” mode, press the
engine switch while carrying an electronic key with the
selector lever in the “P” position, and the brake pedal not
depressed.
Each time you press the engine switch, the mode changes in
order of “OFF”, “ACC”, “IG−ON” mode then back to “OFF”
mode.
To start the engine in each mode, push the engine switch while
the brake pedal is depressed. For details, see “Starting the
engine” on page 350.

STARTING AND DRIVING
361 Shift into the “2” (second range) position. The transmission
will downshift to second gear when the vehicle speed is or
becomes lower than the speed listed below and more
powerful engine braking than that of the “3” (third range)
position will be enabled.
GS43099 km/h (62 mph)
GS300 (2WD)93 km/h (58 mph)
GS300 (4WD)89 km/h (55 mph)
If you drive in the “D” position: Shift the selector lever to
the “S” position and shift the lever down to the “–” position
three times to select “2” (second range).
If you drive in the “S” position: Shift the selector lever
down to the “–” position to select “2” (second range).
Shift into the “1” (first range) position. The transmission will
downshift to first gear when the vehicle speed is or becomes
lower than the speed listed below and maximum engine
braking will be enabled.
GS43037 km/h (23 mph)
GS300 (2WD)38 km/h (23 mph)
GS300 (4WD)36 km/h (22 mph)
If you drive in the “D” position: Shift the selector lever to
the “S” position and shift the lever down to the “–” position
four times to select “1” (first range).
If you drive in the “S” position: Shift the selector lever
down to the “–” position to select “1” (first range).
CAUTION
Be careful when downshifting on a slippery surface.
The abrupt change in engine speed could cause the
vehicle to skid or spin.

STARTING AND DRIVING
369
Dual sensors
G31054
(A) Collision will be unavoidable: Collision with the
detected obstacle cannot be avoided even by changing the
steering.
(B) Collision will be avoided by changing the steering:
Collision with the obstacle can be avoided by changing the
steering.
(C) Collision will be avoided with the present steering
angle: Even if you continue moving at the present steering
angle, the distance to the obstacle within sensor detection
range will not be less than about 25 cm (0.8 ft.).
The dual sensors detect an obstacle in front of the vehicle
or at an angle to the front of the vehicle, and estimate the
distance to the obstacle and also the steering angle
required. They will evaluate which of the above 3
conditions is applicable.The selector lever must be in any position other than “P” or “R”
for these sensors to operate, however the obstacle at an angle
to the front of the vehicle will also be detected while the selector
lever is in “R”.
CAUTION
With long obstacles such as walls, the decision of the
sensor may change as the obstacle gets closer; from
certain avoidance to avoidance if steering is changed;
from certain avoidance to unavoidable collision; and
there are also times when the decision will be changed
from avoidance if steering is changed, to certain
collision. When you move your vehicle, be sure to
confirm a safe distance around your vehicle with your
eyes and drive slowly, or an accident or injury may
result.
The steering guidance may not operate properly in the
following conditions:
Tires other than those of Lexus genuine size are
installed.
The steering sensor information cannot be received
properly. (See “Intuitive parking assist failure warning”
on page 378.)

STARTING AND DRIVING
373
1
Multi−information display:
The indicator bars will come on depending on the
distance to the obstacle.
2
Screen:
The indicator bars will come on in green depending on the
distance to the obstacle. In addition, the current direction
of the tires is also indicated in 3 stages.
Beeps:
Beeps will not sound.
CAUTION
To avoid an accident or injury, observe the following.
When you move your vehicle, be sure to confirm a safe
distance around your vehicle with your eyes and drive
slowly.
With long obstacles such as walls, the decision of the
sensor may change as the obstacle gets closer; from
certain avoidance to avoidance if steering is
changed; from certain avoidance to unavoidable
collision; and there are also times when the decision
will be changed from avoidance if steering is
changed, to certain collision.
When an obstacle is detected within about 25 cm (0.8
ft.) from the vehicle, the dual sensors will change the
determination to an unavoidable collision.
Rear corner sensors
G31058

3
About 37.5 cm (1.1 ft.) to about 50 cm (1.5 ft.)
4
About 25 cm (0.8 ft.) to about 37.5 cm (1.1 ft.)
5
Less than about 25 cm (0.8 ft.)

STARTING AND DRIVING
383 When the intuitive parking assist determines that the
collision will be avoided with the present steering angle:
The indicator will come on in green.
However, if the sensors detect and determine an obstacle at
an angle to the front of the vehicle, the indicator will not come
on.
Beeps (except for avoidable collisions at the present
steering angle):
As distance to the obstacle gets closer, the interval of the
intermittent sound gets shorter, and then finally to a continuous
sound when the distance between the vehicle and the obstacle
is less than about 25 cm (0.8 ft.).
CAUTION
When an obstacle is detected within about 25 cm (0.8
ft.) from the vehicle, the dual sensors will change the
determination to an unavoidable collision.
With long obstacles such as walls, the decision of the
sensor may change as the obstacle gets closer; from
certain avoidance to avoidance if steering is
changed; from certain avoidance to unavoidable
collision; and there are also times when the decision
will be changed from avoidance if steering is
changed, to certain collision.
When you move your vehicle, be sure to confirm a safe
distance around your vehicle with your eyes and drive
slowly, or an accident or injury may result.
Rear corner sensors
G31068

1
About 35 cm (1.1ft.) to about 50 cm (1.5 ft.)
2
About 25 cm (0.8 ft.) to about 35 cm (1.1 ft.)
3
Less than about 25 cm (0.8 ft.)
Display:
The indicator will flash yellow depending on the distance to the
obstacle. When the distance between the vehicle and the
obstacle is less than about 25 cm (0.8 ft.), the yellow indicator
will turn red.
Beeps :
As distance to the obstacle gets closer, the interval of the
intermittent sound gets shorter, and then finally to a continuous
sound when the distance between the vehicle and the obstacle
is less than about 25 cm (0.8 ft.).

STARTING AND DRIVING
402(c) Setting operation
G31014

Each function is described below.
1
Setting the desired speed
The transmission must be in “D”, “6” (sixth range), “5” (fifth
range) or “4”(fourth range) before you set the cruise control
speed.After bringing the vehicle to the desired speed, press the
control lever downward in the “– SET” direction and release it.
This sets the vehicle at that speed. At this time, the
multi−information display indicates settings such as the preset
vehicle speed, whether a vehicle is present ahead and
selected vehicle−to−vehicle distance. If there is no vehicle
detected ahead, the dynamic radar cruise control screen does
not display the vehicle ahead. At this time, you may take your
foot off the accelerator pedal. If you need to accelerate − for
example, when passing − depress the accelerator pedal
enough for the vehicle to exceed the preset speed. When you
release the accelerator pedal, the vehicle will return to the
control prior to acceleration.
You cannot set a desired speed if the master warning light
comes on, the warning tone sounds and the multi−information
display indicates a warning message such as “CRUISE NOT
AVAILABLE”, “CLEAN RADAR SENSOR” or “CHECK
CRUISE SYSTEM”. If any of the above messages appears on
the display, see “Vehicle−to−vehicle distance control mode
failure warning” on page 410.
If you turn off the “ON−OFF” button while the warning message
is displayed, the warning message turns off and the
multi−information display switches to another screen. If no
warning message appears on the display, when you turn the
“ON−OFF” button on again, the setting can be made.
You can change the dynamic radar cruise control screen to
another screen even while the warning message is displayed.

STARTING AND DRIVING
406(d) Changing vehicle−to−vehicle distance
G31016

1
Long 2
Middle 3
Short
You can select one of the following vehicle−to−vehicle
distances: “Long”, “Middle” or “Short”. Each time you
pull the distance switch briefly toward you, the setting
changes from “Long” to “Middle” to “Short” and then
back to “Long”. You can confirm the setting on the
multi−information display.
It should be noted that pulling the “DISP” switch will change to
another screen.
Your vehicle speed changes in proportion to the speed of
the vehicle ahead, maintaining the selected distance.
However, if the vehicle speed is slower, the selected
distance will be shorter than the designated distance.
When the vehicle−to−vehicle distance control mode is
activated or the multi−information display indicates “RADAR
READY”, the vehicle−to−vehicle distance setting can be
changed.The vehicle−to−vehicle distance is always set to “Long” when
the engine switch is turned on.
CAUTION
Select the vehicle−to−vehicle distance
considering traffic conditions. The approximate
vehicle−to−vehicle distance based on time
interval when driving at 80 km/h (50 mph) is
shown below :
“Long” about 50 m (about 164 ft.). . . . . . . .
“Middle” about 40 m (about 132 ft.). . . . . .
“Short” about 30 m (about 100 ft.). . . . . . .
If the vehicle speed is slower than 80 km/h (50 mph),
the distance will be shorter than the above.
During long downhill driving, the vehicle−to−vehicle
distance will be shorter than the selected distance.

STARTING AND DRIVING
424
Hill−start assist control system failure
warning
G31039

1
GS430 2
GS300
If the hill−start assist control system malfunctions, the
slip indicator light (two−wheel drive models only) and
brake system warning light (yellow) come on. At this time,
the above message appears. (GS430 only—In some
cases, the multi−information display shows either
“CHECK VSC” or “CHECK ECB” only.)
If the message appears, the hill−start assist control system,
vehicle stability control system and traction control system do
not work. Although it is no problem to continue driving, have
your vehicle checked by your Lexus dealer as soon as
possible.
VARIABLE GEAR RATIO
STEERING SYSTEM
(GS430 only)
The variable gear ratio steering system adjusts the wheel
turning angle depending on the vehicle speed and how
much you turn the steering wheel.
The vehicle wheel turning angle will be changed with a smaller
degree of wheel maneuvering when you are driving at very low
speed such as when putting your vehicle into a garage.
When you start or stop the engine, you may hear a small noise
and the steering wheel may move slightly. This is caused when
the system starts or stops, and does not indicate a malfunction.
In the following cases, to prevent the system from overheating,
the system could be temporarily deactivated with the change
in the center position of the steering wheel. This is not a
malfunction. After the cause of the problem is eliminated, the
system will return to normal automatically after a few minutes.
If you continue maneuvering the steering wheel when the
vehicle is stopped or running at very low speed
If you continue driving holding the steering wheel to the
extreme right or left
If you maneuver the steering wheel immediately after
starting the engine at less than about −30C (−22F)

STARTING AND DRIVING
425 While the system is not functioning, a larger degree of wheel
maneuvering is needed during driving at low speed. If the
center position of the steering wheel is changed frequently,
have your vehicle inspected at your Lexus dealer.
CAUTION
Take due care especially when driving at low speed as
the vehicle changes direction in greater proportion to
the steering wheel maneuvering.
NOTICE
Do not disconnect the battery with the steering wheel
turned, or the center position of the steering wheel
could be slightly and temporarily changed. However,
after driving for a short while, the system will return to
normal and the center position of the steering wheel will
be in the appropriate position.
If you disconnect and reconnect the battery terminal, the
system is reset temporarily. However, it is no problem to drive.
Drive for a short while, the system will be set automatically and
return to normal.
Variable gear ratio steering system failure
warning
G31044
If there is any malfunction in the system, the above message
appears and the master warning light comes on.
If the warning message and light come on while driving, the
system is not working. Although conventional steering
operates when maneuvered, a larger degree of wheel
maneuvering (than at the time when the system is functioning
properly) is needed when driving at low speed. At this time, the
center position of the steering wheel could be changed.
Although it is no problem to continue driving, have your vehicle
repaired at your Lexus dealer.