2009 Acura RL sensor

The climate control system in your
vehicle provides a comfortable
driving environment in all weather
conditions.
The standard audio system has
many f eatures. This section
describes those f eatures and how to
use them.
Theclimatecontrolsystemandthe
audio system have a voice control
feature.
Your vehicle has an anti-theft audio
system that requires a code number
to enable it.
The security system helps to
discourage vandalism and thef t of
your vehicle................
Climate Control System .204
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Climate Control Sensors .212
................................
Audio System .213
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Playing the AM/FM Radio .214
....
AM/FM Radio Frequencies .224
........
AM/FM Radio Reception .224
.................
Adjusting the Sound .226
Playing the XM
Satellite
......................................
Radio .229
...
Operating the Disc Changer .236
..........................
PlayinganiPod .247
Playing a USB Flash Memory
....................................
Device .256
.....
Playing a Bluetooth
Audio .265
...
Disc Changer Error Messages .271
....................
iPod Error Messages .272
USB Flash Memory Device
........................
Error Messages .273
..................
Protecting Your Discs .274
......................
Auxiliary Input Jack .277
................
Remote Audio Controls .278
.................
Radio Thef t Protection .280
...........................
Compass System .281
................
Voice Control Basics .304
......................
Setting the Clock .313
............................
Security System .315 ...............................
Cruise Control .316
..
Adaptive Cruise Control (ACC) .319
HomeLink
Universal
................................
Transceiver .334
......................................
AcuraLink .338
.......
Bluetooth
HandsFreeLink.355
...
Rearview Camera and Monitor .382
Features
Features
203
2009 RL

Theclimatecontrolsystemhastwo
sensors: a sunlight sensor on top of
the dashboard, and a temperature
and humidity sensor next to the
steering column. Do not cover the
sensors or spill any liquid on them.
You can manually select various
f unctions of the climate control
system when it is in f ully automatic
mode. All other f eatures remain
automatically controlled. Making any
manual selection causes the word
AUTO in the display to go out.
Press the OFF button. However, a
lack of airf low can cause the
windowstofogup.Youshouldkeep
the fan on at all times so stale air and
moisture do not build up in the
interior and cause f ogging.
Climat e Cont rol Sensors
Sunlight and T emperature
Sensors
To Turn Everything Off
Semi-automatic Operation
212
SUNLIGHT SENSOR TEMPERATURE SENSOR
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

This indicator normally comes on f or
a f ew seconds when you turn the
ignition switch to the ON (II)
position. If it comes on at any other
time, there is a problem in the ACC
system. If this happens, take the
vehicle to your dealer to have it
checked.
The ACC system cannot be used
while this indicator is on.
The vehicle speed decreases
below22mph(35km/h).
Driving on a mountainous road, or
driving of f road f or extended
periods.
When the VSA indicator comes on.
When the ABS or VSA is activated.
Abrupt steering wheel movement.
If ACC is cancelled by any these
conditions, wait until the condition
improves, then press the RES/
ACCEL button to restore ACC.
When you do this, the vehicle will
resume its set cruising speed.
If you turn the ignition switch to the
ACCESSORY (I) or LOCK (0)
position af ter ACC was automatically
cancelled, the set speed is erased,
and you must enter it again (see
page ).
Poor weather (rain, f og, snow, etc.)
When the radar sensor in the front
grille gets dirty.
The vehicle ahead of you cannot
be detected.
An abnormal tire condition is
detected, or the tires are skidding.
When ACC is automatically canceled,
the beeper sounds about 1 second,
and an ACC OFF message appears
on the multi-inf ormation display f or 3
seconds.
Any of these conditions may cause
ACC to cancel:
324
Automatic ACC Cancellation ACC Indicator
A daptive Cruise Control (A CC)
330
ACC INDICATOR
2009 RL

The multi-inf ormation display shows
various messages related to ACC.
For a description of each ACC
message you may see, ref er to the
chart on this and the f ollowing page.
Message
CONT INUED
Description
ACC is on.
ACC detects a vehicle ahead of you.
You will hear a beep when the vehicle
moves out of the ACC radar sensor’s
range.
ACC does not detect a vehicle ahead
of you.
You will hear a beep when ACC
detects a vehicle ahead of you.
Messages on the
Multi-Inf ormation Display
A daptive Cruise Control (A CC)
Features
331
U.S.
U.S.
CANADA
CANADA
2009 RL

Message Message DescriptionDescription
Apply the brakes immediately.
Your vehicle is too close to the vehicle
ahead of it.
You will hear a continuous beep.
ACC needs to be checked.
Have your vehicle checked by a
dealer.
ACC has automatically cancelled
because its radar sensor in the f ront
grill is dirty.
You will hear a beep about 1 second.
ACC has automatically cancelled
because of bad weather or other
conditions.
You will hear a beep about 1 second.
A daptive Cruise Control (A CC)
332
2009 RL

The CMBS does not activate if the
speed dif f erence between the two
vehicles is less than 10 mph (15
km/h). CMBS may also not
activate if you turn the steering
wheel to avoid the collision.
When the CMBS activates, the brake
lights also come on.
The collision mitigation brake
system (CMBS) can assist you when
there is a possibility of your vehicle
hitting the vehicle in f ront of you. It
is designed to reduce the speed of
your vehicle before an unavoidable
collision occurs and, if possible, to
alert you to a potential collision while
thereistimetopreventit.Hereisa
brief description of what the CMBS
can do:
When your speed is above 10 mph
(15 km/h), the CMBS radar
sensor in the f ront grille can sense
a vehicle ahead of you. When your
vehicle gets too close to the
vehicle ahead of you, the system
mayactivateawarningbeep,
causing automatic application of
the brakes, and causing the
e-pretensioners to tighten the
f ront seat belts (see page ). The CMBS consists of a radar
sensor in the f ront grille, a brake
actuator in the engine compartment,
an indicator on the instrument panel,
seat belt e-pretensioners on the f ront
seats,andanon/off switchonthe
dashboard.
24
If equipped
Overview
Collision Mitigation Brake System (CMBS)
Driving
419
RADAR SENSOR
BRAKE
ACTUATOR SEAT BELT
e-PRETENS
IONERS
2009 RL