2006 LEXUS RX330 engine

STARTING AND DRIVING
415
5Resetting to a slower speed
Press the control lever downward in the “ − SET” direction and
hold it. Release the lever when the desired speed is attained.
While the lever is held downward, the vehicle speed will
gradually decrease.
When the difference between the actual vehicle speed and the
set speed is less than 5 km/h (3 mph), the set speed can be
lowered 1.6 km/h (1 mph) each time by pressing the control
lever downward in the “ − SET” direction quickly.
However, a quicker way to reset is to depress the brake pedal
and then press the control lever downward in the “ − SET”
direction.
Vehicle with automatic transmission (standard type) —
Even if you downshift the transmission from the “D” position to
“4” with the cruise control on, engine braking will not be
enabled because the cruise control is not cancelled. To
decrease the vehicle speed, reset to a slower speed with the
cruise control lever or depress the brake pedal. If you use the
brake pedal, cruise control is cancelled.
Vehicle with automatic transmission (multi −mode type) —
Even if you downshift the transmission from the “D” or “5” (fifth
range) to the “4” (fourth range) with the cruise control on,
engine braking will not be enabled because the cruise control
is not cancelled. To decrease the vehicle speed, reset to a
slower speed with the cruise control lever or depress the brake
pedal. If you use the brake pedal, cruise control is cancelled.Cruise control failure warning
If the “CRUISE” indicator light flashes when using the cruise
control, press the “ON− OFF” button to turn the system off and
then press it again to turn it on.
If any of the following conditions then occurs, there is some
trouble in the cruise control system.
 The indicator light does not come on.
 The indicator light flashes again.
 The indicator light goes out after it comes on.
If this is the case, contact your Lexus dealer and have your
Lexus inspected.

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421
CAUTION
Do not rely excessively on dynamic laser cruise control.
Observe the following precautions in order to avoid
serious injury or death:
 Under certain conditions when the vehicle in front
slows abruptly, or is stopped, the dynamic laser
cruise control may be unable to decelerate
automatically or to warn you. You must apply the
brakes manually in order to maintain a safe
vehicletovehicle distance or avoid collision.
Therefore, pay careful attention to following
distance, even when using the dynamic laser cruise
control.
 Do not use dynamic laser cruise control in the
following conditions:
In bad weather (such as rain, fog, snow, sandstorms
or direct sunlight, or when raindrops or snowflakes
get on the laser radar sensor glass), the
vehicletovehicle distance will not be measured
accurately.
When using the windshield wipers at high or low
speeds, the dynamic laser cruise control turns off.
On roads with heavy traffic or sharp bends, an
appropriate speed cannot be maintained and an
accident may occur.
On slippery road surfaces (icy or snowcovered road
surfaces), the tires will race and you will be unable to
control the vehicle.
When there is no vehicle detected ahead on steep
downhill slopes, the preset speed will be easily
exceeded because of inefficient engine braking. (In
this case, automatic braking will not work.) If there is
a vehicle detected ahead, the delay in deceleration
timing could cause serious injury or death.
When the alarm sounds frequently (because of
frequent changes of speed or insufficient
vehicletovehicle distance), this indicates that the
system cannot maintain an appropriate
vehicletovehicle distance and an accident may
occur.
On roads with steep and short inclines and declines,
failure to detect the vehicle ahead will shorten the
distance between your vehicle and the vehicle ahead
and an accident may occur.

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427
(g) Resetting to a slower speed
Push the lever down in the “
− SET” direction and hold it. The
displayed speed will decrease in increments of 5 mph (for
U.S.A.) or 5 km/h (for Canada). Release the lever when the
desired speed is attained. The vehicle speed will gradually
decrease to the displayed speed.
However, a faster way to reset is to depress the brake pedal
and then push the lever down in the “ − SET” direction.
If the control lever is released when the vehicle speed exceeds
the upper limit of the preset speed traveling downhill while you
are pushing the lever down, the system will memorize the
upper limit of the preset speed as a preset speed.
With automatic transmission (standard type) —
Even if you downshift the transmission from “D” to “4” in th\
e
vehicle −to−vehicle distance control mode, engine braking will
not be enabled because this mode is not cancelled. To
decrease the vehicle speed, reset to a slower speed with the
cruise control lever or depress the brake pedal. If you use the
brake pedal, cruise control is cancelled.
With automatic transmission (multi −mode type) —
Even if you downshift the transmission from “D” or “5” (fif\
th
range) to the “4” (fourth range) in the vehicle −to−vehicle
distance control mode, engine braking will not be enabled
because this mode is not cancelled. To decrease the vehicle
speed, reset to a slower speed with the cruise control lever or
depress the brake pedal. If you use the brake pedal, cruise
control is cancelled. (h) Changing vehicletovehicle distance
1Long2Middle3Short
You can select one of the distances listed below.
1. Long
2. Middle
3. Short
Pulling the distance switch briefly towards you allows you to
toggle between long, middle and short vehicle −to−vehicle
distances. You can confirm the setting on the display.
Your vehicle speed changes to match the speed of the vehicle
ahead, maintaining the selected distance. However, if the
vehicle ahead slows, the actual vehicle −to−vehicle distance
will be shorter than the set distance.
When the vehicle−to−vehicle distance control mode is
activated or the “READY” indicator comes on, the
vehicle −to−vehicle distance setting can be changed.

STARTING AND DRIVING
428The vehicle
−to− vehicle distance is always set to long when the
ignition switch is turned on.
Select the vehicle −to−vehicle distance considering traffic
conditions. The approximate vehicle −to−vehicle distance
based on time interval when driving at 88 km/h (55 mph) is
shown below:
Long about 75 m (245 ft.)
. . . . . . . . . .
Middle about 50 m (165 ft.)
. . . . . . . .
Short about 30 m (100 ft.)
. . . . . . . . .
If vehicle speeds are slower than 88 km/h (55 mph), the
distance will be shorter than that listed above.
During long downhill driving, the actual vehicle −to−vehicle
distance may be less than that selected by the driver. (i) Braking control
Dynamic laser cruise control is not a collision avoidance
system. If the approach warning is activated, decelerate by
applying the brakes to ensure an appropriate
vehicle
−to−vehicle distance.
If you are nearing the vehicle ahead traveling at a higher speed
than the vehicle ahead or if engine braking cannot be applied
properly, braking control is automatically activated. At this
time, the display flashes.
Braking control operates only when the vehicle −to−vehicle
distance control mode is selected and your vehicle speed
exceeds about 40 km/h (25 mph). If the speed falls below
about 40 km/h (25 mph), braking control will cease, requiring
the manual application of brakes.

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433
Conventional (fixed speed) cruise control
mode
The conventional cruise control mode is designed to
maintain a set cruising speed without requiring the driver
to operate the accelerator. Cruising speed can be set to
any speed above 45 km/h (28 mph).
Within the limits of the engine’s capabilities, cruising speed can
be maintained up or down grades. However, changes in
vehicle speed may occur on steeper grades.
CAUTION
 In the conventional cruise control mode, the
approach warning does not activate and no alarm will
sound even if you are too close to the vehicle ahead,
as neither the presence of the vehicle ahead nor the
vehicletovehicle distance is detected. Pay special
attention to the distance between your vehicle and
the vehicle ahead. Always confirm the cruise control
mode on the display.
 Do not use the conventional mode in the following
conditions, or serious injury or death could result:
To help maintain maximum control of your vehicle,
do not use conventional cruise control mode when
using dynamic laser cruise control while driving in
heavy or varying traffic, or on slippery (rainy, icy or
snowcovered) or winding roads.
Avoid vehicle speed increasing when driving
downhill. If the vehicle speed is too fast in relation to
the preset speed in the conventional cruise control
mode, cancel the conventional cruise control mode
and then downshift the transmission to use engine
braking to slow down.

STARTING AND DRIVING
436To turn the system off, push the “ON
−OFF” button. Make sure
the “CRUISE” indicator light is off.
If the conventional cruise control mode automatically cancels
out other than for the above cases, have your vehicle checked
by your Lexus dealer at the earliest opportunity.
(d) Resuming the conventional cruise control mode
If the conventional cruise control mode is temporarily
cancelled, the cruising speed can be resumed by pushing the
lever up in the “+ RES” direction.
Vehicle speed must be above 40 km/h (25 mph).
(e) Resetting to a faster speed
Push the lever up in the “+ RES” direction and hold it. Release
the lever when the desired speed is attained. While the lever
is held up, the vehicle will gradually gain speed.
When the difference between the actual vehicle speed and the
set speed is less than 5 km/h (3 mph), the set speed can be
increased 1.6 km/h (1 mph) each time by pushing the lever up
in the “+ RES” direction quickly within 0.6 seconds.
However, a faster way to reset is to accelerate the vehicle and
then push the lever down in the “ − SET” direction. (f) Resetting to a slower speed
Push the lever down in the “
− SET” direction and hold it.
Release the lever when the desired speed is attained. While
the lever is held down, the vehicle speed will gradually
decrease.
When the difference between the actual vehicle speed and the
set speed is less than 5 km/h (3 mph), the set speed can be
lowered 1.6 km/h (1 mph) each time by pushing the lever down
in the “− SET” direction quickly within 0.6 seconds.
However, a faster way to reset is to accelerate the vehicle and
then push the lever down in the “ − SET” direction.
With automatic transmission (standard type) —
Even if you downshift from “D” to “4” in the conventional cruise
control mode, engine braking will not be enabled because this
mode is not cancelled. To decrease the vehicle’s speed, reset
to a slower speed with the cruise control lever or depress the
brake pedal. If you use the brake pedal, cruise control is
cancelled.
With automatic transmission (multi −mode type) —
Even if you downshift from “D” or “5” (fifth range) to “4” (fourth
range) in the conventional cruise control mode, engine braking
will not be enabled because this mode is not cancelled. To
decrease the vehicle’s speed, reset to a slower speed with the
cruise control lever or depress the brake pedal. If you use the
brake pedal, cruise control is cancelled.

STARTING AND DRIVING
438This electronically modulated air suspension allows the
driver to
control the vehicle’s height in order to adjust for
driving conditions. Select your desired height among the
“HI” (high), “N” (normal) and “LO” (low) modes with the
height select switch.
You can turn on or off the easy access mode with the easy
access mode switch. If the engine is stopped when the easy
access mode is on, the vehicle height is lowered automatically.
(a) Vehicle height modes
Vehicle’s height mm (in.)
“N”
− 7.0 (0.3)
Vehicle speedkm/h (mph)
80
(50) 100
(62)

“N” (normal) mode
“N” (normal) mode: The vehicle’s height in this mode is
standard.
This mode is suitable for ordinary driving.
When the vehicle speed exceeds approximately 100 km/h (62
mph), the vehicle’s height automatically lowers about 7 mm
(0.3 in.) from normal height to provide better stability. When the
vehicle speed reduces to under approximately 80 km/h (50
mph), the vehicle’s height automatically returns to the normal
height.

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440
Vehicle’s height mm (in.)Vehicle speedkm/h (mph)
“N”
“LO”
− 15 (0.6)
 “LO” (low) mode
“LO” (low) mode: The vehicle’s height is about 15 mm (0.6 in.)
lower than the normal height.
This mode is suitable for sporty driving such as on winding
mountain roads and high speed driving.
When the engine is turned off and then restarted, the “N”
(normal) mode will automatically be selected.
Vehicle’s height mm (in.)
Vehicle speedkm/h (mph)
“N”
− 7.0 (0.3)
“LO”
− 15 (0.6)
Easy access − 30 (1.2 in.) 80
(50) 100
(62)
12
(8)
 Easy access mode
Easy access mode: The vehicle’s height is about 30 mm (1.2
in.) lower than the normal height.
This mode allows easy access to the vehicle (getting in and
out) and easy loading and unloading operations.
This mode is available when “N” or “LO” mode is selected.
When the engine is stopped, easy access mode is
automatically selected, and the height adjusted.