Acura RL 2009 Owner's Manual

Tap the brake pedal.
Push the CANCEL button on the
steering wheel.
Resting your f oot on the brake pedal
causes cruise control to cancel.
Even with cruise control on, you can
still use the accelerator pedal to
speed up f or passing. Af ter
completing the pass, take your foot
of f the accelerator pedal. The vehicle
will return to the set cruising speed.
You can cancel cruise control in any
of these ways:Push the CRUISE (ACC) button. When you push the CANCEL button
or tap the brake pedal, the system
remembers the previously set speed.
To return to that speed, accelerate to
above25mph(40km/h),thenpress
and release the RES/ACCEL button.
The CRUISE CONTROL [ACC
(green)] indicator comes on. The
vehicle accelerates to the same
speed as bef ore.
Pressing the CRUISE (ACC) button
turns the system completely of f and
erases the previous cruising speed.
Resuming the Set Speed
Canceling Cruise Control
Cruise Control
318
CANCEL BUTTON
CRUISE (ACC) BUTTON
Non-ACC model is shown
2009 RL

The radar sensor for ACC is shared
with the collision mitigation brake
system (CMBS). For more
inf ormation on the radar sensor, see
page . For more inf ormation on
CMBS, see page .
Adaptive cruise control (ACC)
consists of a radar sensor in the
f ront grille, the ACC buttons on the
steering wheel, and the ACC
f unctions of the multi-inf ormation
display.420 419
If equipped
A CC Components
A daptive Cruise Control (A CC)
Features
319
ACC INDICATOR
MULTI-INFORMATION
DISPLAY
ACC BUTTON
DISTANCE BUTTONSET/DECEL
BUTTON
RES/ACCEL BUTTON
CANCEL BUTTON
2009 RL

Adaptive cruise control (ACC) allows
you to maintain a set speed and keep
the vehicle ahead of you and your
vehicle at a saf e distance without
having to use the accelerator pedal
or the brake pedal.If the vehicle ahead of you slows
down suddenly or another vehicle
cuts in f ront of your vehicle, ACC
alerts you by sounding a beeper and
displaying a message on the multi-
inf ormation display.
TheACCradarsensorinthefront
grille can detect and monitor the
distance of a vehicle up to 328 f eet
(100 meters) ahead of your vehicle.
For more inf ormation on the radar
sensor, see page .Do not use ACC under these
conditions:
In poor visibility.
In heavy traffic.
When you must slow down and
speed up repeatedly.
On winding roads.
When you enter a toll gate,
interchange, service area, parking
area, etc. In these areas, there is
no vehicle ahead of you, and ACC
would still try to accelerate to your
set speed.
In bad weather (rain, f og, snow,
etc.)
On a slippery road (f or example a
road covered with ice or snow).
As with any system, there are limits
to ACC. Inappropriate use of ACC
can result in a serious accident. Use
the brake pedal whenever necessary,
and always keep a safe distance
between your vehicle and other
vehicles.
When the vehicle ahead of you slows
down or speeds up, ACC senses the
change in distance and compensates
by accelerating or braking your
vehicle to reach the cruising speed
you previously set. The distance
between vehicles is based on your
speed: the f aster you go, the longer
the distance will be; the slower you
go, the shorter it will be.
420
Overview
Important Saf ety Precautions
A daptive Cruise Control (A CC)
320
2009 RL

When there is no vehicle ahead withinACC range When a vehicle ahead is within ACC
range and going slower than your setspeed
Your vehicle will maintain a set
cruising speed. If the vehicle ahead of you is going slower than your set speed, your
vehicle will slow down to the speed
of that vehicle. Your vehicle will then
f ollow at a constant distance until the
vehicle ahead changes speed again.
CONT INUED
Operating Characteristics
A daptive Cruise Control (A CC)
Features
321
Improper use of ACC can lead
toacrash.
Use ACC only when traveling
on open highways in good
weather.
2009 RL

If the vehicle ahead of you slows
down abruptly, or if another vehicle
cuts in f ront of you, a beeper sounds
and a message appears on the multi-
inf ormation display to warn you.Your vehicle f ollows the vehicle
ahead of it, keeping a constant
distance. ACC will not keep your
vehicle at a constant distance if the
vehicle ahead of you goes out of
range of your set speed.If the vehicle ahead of you slows
down and changes lanes, ACC no
longer tracks it. Your vehicle will
then return to your set speed.
In this case, decelerate your vehicle
by pressing the brake pedal, and
keep an appropriate distance f rom
the vehicle ahead.
When a vehicle ahead is within ACC
range and going at a steady speed
A daptive Cruise Control (A CC)
322
2009 RL

ACC does not work below 25 mph
(40 km/h). It cannot bring your
vehicle to a complete stop.
ACC will not sound a beeper or
display a message on the multi-
inf ormation display to warn you of
vehicles going slower than 13 mph
(20 km/h) or vehicles that are
parked. In these cases, it is up to
you to maintain a safe distance by
using the brake pedal.
ACC may not recognize
motorcycles or other small
vehicles ahead of your vehicle.ACC may react to vehicles beside
you or even a building beside you
by momentarily applying the
brakes or sounding a beeper under
conditions such as a sudden curve
or narrowing of the road, an
abrupt movement of the steering
wheel, or if you are in an unusual
position within your lane.
Limitations
A daptive Cruise Control (A CC)
Features
323
2009 RL

Push the ACC button on the
steering wheel. The ACC indicator
on the instrument panel comes on,
and ‘‘ACC’’ is shown on the multi-
inf ormation display.
Accelerate to the desired speed
above25mph(40km/h).Press and release the SET/
DECELbuttononthesteering
wheel, then release the
accelerator pedal.
If you press the SET/DECEL button
when the vehicle speed is below 25
mph (40 km/h), you will hear a beep
about 1 second. This means ACC is
not activated, and you cannot set
your speed. When your speed reaches 25 mph
(40 km/h), ACC goes into wait mode,
and ‘‘ACC’’ is shown on the multi-
inf ormation display.
1.
2. 3.
Using the ACC
A daptive Cruise Control (A CC)
324
ACC BUTTON
SET/DECEL BUTTON
2009 RL

When the speed is set, it is shown
along with a vehicle icon and
distance bars on the multi-
inf ormation display.
Refertopageforhowtosetand
change the set distance between
your vehicle and the vehicle ahead of
you.If you change the speed unit
measurement f rom the f actory
def ault setting, the initial speed unit
measurement is shown under the
current unit.
To change the speed unit
measurement f rom mph to km/h,
see page .
328 92
A daptive Cruise Control (A CC)
Features
325
SET VEHICLE
SPEED
U.S.
CANADA CANADA
U.S.
SET VEHICLE
DISTANCE INITIAL S
PEEDUNIT
2009 RL

The set speed can be increased by
using the RES/ACCEL button or the
accelerator pedal.To increase the set speed with the
RES/ACCEL button, do this:
Press and hold the RES/ACCEL
button. The vehicle will accelerate.
When you reach the speed you want,
release the button.
To increase your speed in small
amounts, tap the RES/ACCEL
button repeatedly. Each time you do
this, your vehicle will speed up about
1 mph (1 km/h).
While the vehicle accelerates to the
set speed, the set speed on the multi-
inf ormation display will f lash.
If a vehicle ahead of you is driving at
a slower speed than the speed you
want to set, your vehicle will not
accelerate; it will keep some distance
between your vehicles.To increase the set speed with the
accelerator pedal, do this:
Press the accelerator pedal to
increase to the speed you want, then
press the SET/DECEL button. The
set speed will be shown on the multi-
inf ormation display. If you do not
press the SET/DECEL button, your
vehicle will return to the previously
set speed.
The ACC beeper will not sound
while you press the accelerator pedal,
no matter how close you get to the
vehicle ahead of you.
Increasing the Set Speed
A daptive Cruise Control (A CC)
326
RES/ACCEL BUTTON
2009 RL

The set speed can be decreased
using the SET/DECEL button or the
brake pedal.
To decrease the set speed with the
SET/DECEL button, do this:
Press and hold the SET/DECEL
button. Release the button when you
reach the speed you want.
To slow down in small amounts, tap
the SET/DECEL button repeatedly.Each time you do this, your vehicle
slows down about 1 mph (1 km/h).
When the system detects a vehicle
ahead of you, a beeper sounds once
and a solid-line vehicle icon appears
on the multi-information display.
The set cruising speed will be shown
on the multi-information display.
On a steep downhill, the vehicle
speed may exceed the set cruising
speed.
To decrease the set speed with the
brake pedal, do this:
Tap the brake pedal. When the
vehicle slows down to the speed you
want, press the SET/DECEL button.
The set speed will be shown on the
multi-inf ormation display. If you use
the brake pedal to decrease speed,
andthenpresstheRES/ACCEL
button, your vehicle will return to the
previously set speed.
CONT INUED
Decreasing the Set Speed Detecting a Vehicle A head of You
A daptive Cruise Control (A CC)
Features
327
SET/DECEL BUTTON
U.S.
CANADA
2009 RL