2006 LEXUS RX330 alarm

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The dynamic laser cruise control function operates
automatically and depending on whether a vehicle is
detected ahead may change the
speed of your vehicle as
follows.
If no vehicle is running ahead of you —
1Cruising at a fixed speed: If there is no vehicle detected
ahead, your cruising speed is maintained at the preset
speed from about 45 km/h (28 mph) to about 135 km/h (85
mph). The preset speed is displayed in the display. For
the vehicle speed setting, see “(c) Setting the cruising
speed” on page 424. If a vehicle is detected ahead of you —
2Deceleration cruising function: If a slower moving
vehicle is detected ahead of you, your vehicle cruising
speed decreases within the range of about 40 km/h (25
mph) to 135 km/h (85 mph). The display shows the preset
speed, the detected vehicle ahead and selected
vehicle
−to−vehicle distance. If your vehicle gets closer to
the vehicle ahead because of insufficient automatic
deceleration, then the alarm warns you to also manually
apply brakes.
3Followup cruising function: After deceleration, your
cruising speed changes to match the speed of the vehicle
ahead in order to maintain a constant vehicle −to− vehicle
distance. The following distance can be changed. For
details, see “(h) Changing vehicle −to−vehicle distance”
on page 427.

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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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Bring your vehicle to the desired speed, push the lever down
in the “−
SET” direction and release it. This sets the vehicle at
that speed. At this time, the display indicates settings such as
the preset vehicle speed, whether a vehicle is present ahead
and the selected following distance. If no vehicle is detected
ahead, the display does not indicate the vehicle ahead. You
can now 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 alarm sounds and the display indicates one of
the warning codes “E1”, “E2” or “E3”. If any of the above codes
appears on the display, see “(l) Vehicle −to−vehicle distance
control mode failure warning” on page 431. (d) Cancelling the vehicletovehicle distance control
mode
The vehicle
−to−vehicle distance control mode may be
temporarily cancelled by the driver or by the system itself under
certain circumstances. Temporary cancellation allows the set
cruising speed and vehicle −to−vehicle distance to remain in
memory.
The vehicle −to−vehicle distance control mode can be
temporarily cancelled by doing the following:
 Pulling the lever in the “CANCEL” direction and releasing it
 Depressing the brake pedal
Under certain circumstances, the vehicle −to− vehicle distance
control mode is temporarily cancelled:
 When vehicle speed falls below 40 km/h (25 mph)
 When vehicle stability control is activated
The “READY” indicator light comes on to indicate that the
system is still in operation.
To turn the system off, press the “ON −OFF” button. Make sure
the “CRUISE” indicator light is off.
If one of the warning codes “E1”, “E2” or “E3” appears\
on the
display, the preset speed automatically cancels out. See “(l)
Vehicle −to−vehicle distance control mode failure warning” on
page 431.
If the vehicle− to−vehicle distance control mode automatically
cancels out other than for the above cases, have your vehicle
checked by your Lexus dealer at the earliest opportunity.

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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.

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(b) Setting the cruising speed
With automatic transmission (standard type) —
The transmission must be in “D” before you set the cruising
speed.
With automatic transmission (multi
−mode type) —
The transmission must be in “D”, “5” (fifth range) or “\
4” (fourth
range) before you set the cruising speed.
Bring your vehicle to the desired speed, push the lever down
in the “− SET” direction and release it. This sets the vehicle at
that speed and the display shows the preset speed. You can
now 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 speed set prior to acceleration. You cannot set a desired speed if the master warning light
comes on, the alarm sounds and the display indicates the
warning
code “E3”. If this code appears on the display, see “(g)
Conventional cruise control mode failure warning” on page
437.
(c) Cancelling the conventional cruise control mode
The conventional cruise control mode may be temporarily
cancelled by the driver or by the system itself under certain
circumstances. T emporary cancellation allows the set cruising
speed to remain in memory.
The conventional cruise control mode can be temporarily
cancelled by doing the following:
 Pulling the lever in the “CANCEL” direction and releasing it
 Depressing the brake pedal
Under certain circumstances, the conventional cruise control
mode is temporarily cancelled:
 When vehicle speed falls below 40 km (25 mph)
 When vehicle stability control is activated
When vehicle speed drops 16 km/h (10 mph) below the set
speed, the conventional cruise control mode is cancelled and
the set speed is erased from memory.
The “CRUISE” indicator light remains on to indicate that the
system is still in operation.

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(g) Conventional cruise control mode failure warning
If there is trouble in the conventional cruise control mode, the
“CRUISE” indicator light in the instrument cluster flashes, the
master warning light comes on and the alarm sounds, the
warning code “E3” will appear on the display.
If a system malfunction is detected when the conventional
cruise control mode is in the ready mode or operating, the
master warning light comes on, an alarm sounds and the
above code appears.
If this code appears, press the “ON
−OFF” button to turn the
system off and then push it again to turn it on. If the setting still
cannot be made or the same code appears again, the system
might have malfunctioned. Although there is no problem to
continue driving, please contact your Lexus dealer.
ELECTRONICALLY MODULATED AIR SUSPENSION
1Easy access mode switch
2Height control switch
3Height select switch

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CAUTION
Do not rely excessively on the vehicle stability
control system. Even if the vehicle stability control
system is operating, you must always drive carefully
and attentively to avoid serious injury. Reckless
driving will result in an unexpected accident. If the
slip indicator light blinks, sounding an alarm, special
care should be taken while driving.
 Only use tires of specified size. The size,
manufacturer, brand and tread pattern for all 4 tires
should be the same. If you use the tires other than
specified, or different type or size, the vehicle
stability control system may not function correctly.
When replacing the tires or wheels, contact your
Lexus dealer.
 In situations where the road surface is covered with
ice or snow, your vehicle should be fitted with snow
tires or tire chains.
 Slip indicator light
If the vehicle is going to skid during driving, the slip indicator
light blinks and an alarm sounds intermittently. Special care
should be taken while driving.
The slip indicator light comes on for a few seconds when the
ignition key is turned to “ON”. If the indicator light does not
come on when the ignition is turned on, contact your Lexus
dealer.