sensor Acura RL 2008 Owner's Guide

µThe automatic lighting f eature is
controlledbyasensorlocatedontop
of the dashboard. Do not cover this
sensor or spill liquids on it.
Even with the automatic lighting
f eature turned on, we recommend
thatyouturnonthelightsmanually
when driving at night or in a dense
f og, or when you enter dark areas
such as long tunnels or parking
f acilities.
To turn on automatic lighting, turn
the light switch to AUTO at any time.
The lights will come on automatically
when the outside light level becomes
low (at dusk, f or example). The
lights on indicator comes on as a
reminder. The lights and indicator
will turn of f automatically when the
system senses high ambient light. To change the ‘‘AUTO LIGHT
SENSITIVITY’’ setting, see page
.
The automatic lighting
f eature turns on the headlights, all
other exterior lights, and the
instrument panel lights when it
senses low ambient light.
The lights will remain on when you
turn of f the ignition switch. They will
turn of f automatically when you open
and close the driver’s door. To turn
them on again, either turn the
ignition switch to the ON (II)
position or turn the light switch to
. Do not leave the light switch in
AUTO if you will not be driving the
vehicle f or an extended period (a
weekormore).Youshouldalsoturn
of f the lights if you plan to leave the
engine idling or of f f or a long time.
120
AUTO
Turn Signals and Headlights
Inst rument s and Cont rols
141
LIGHT SENSOR
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2008 RL

The inside mirror can automatically
darken to reduce glare. To turn on
this feature, press the button on the
bottom of the mirror. The AUTO
indicator comes on as a reminder.
When it is on, the mirror darkens
when it senses the headlights of a
vehicle behind you, then returns to
normal visibility when the lights are
gone. Press the button again to turn
of f this f eature.
Keeptheinsideandoutsidemirrors
clean and adjusted f or best visibility.
Be sure to adjust the mirrors bef ore
you start driving.
Make sure all items in the trunk and
those extending through the pass-
through are secured.
For security, this cover can be
locked and unlocked only with the
built-in key. To lock the cover, insert
thekey,andturnitclockwise.
Never drive with this cover open and
the trunk lid open.
See on
page .
56
Mirrors
Carbon Monoxide Hazard
158
INDICATOR
AUTO BUTTONSENSOR
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2008 RL

The handle of each f ront door has a
sensor. That sensor works with the
remote so you can automatically
unlock/lock the door(s).
To change the ‘‘DOOR UNLOCK
MODE’’ setting, see page .When you unlock the door(s), some
exterior lights blink twice and the
system beeps twice.
To change the ‘‘KEYLESS ACCESS
LIGHT FLASH’’ setting, see page
.
To change the ‘‘KEYLESS ACCESS
BEEP’’ setting, see page .
By def ault, only the driver’s door
unlocks when you grab its handle. All the doors unlock when you grab
the handle of the f ront passenger’s
door.
If you wear a glove while grabbing a
f ront door handle, the door sensor
maybeslowtorespondormaynot
respond by unlocking the doors.
If you do not open any of the doors
within 30 seconds, they will
automatically relock.
To change the ‘‘SECURITY
RELOCK TIMER’’ setting, see page .
If a remote is within operating range
while you wash your vehicle or when
it is raining heavily, the door sensors
may respond by unlocking the doors.
The unlock sensors do not operate
when: Theremoteisnotwithinthe
operating range.
The remote is too close to the
vehicle.
When the doors are unlocked.
Theremotebatteryisdead.
The vehicle battery is dead.
109 111
113131
Unlocking the Door(s)
K eyless A ccess System
Inst rument s and Cont rols
165
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2008 RL

Each f ront door has a LOCK/
UNLOCK f eature.
When you touch the door lock
sensor of the f ront door by hand, all
the doors and the trunk will lock.The lock sensors do not operate if :
When you lock the doors, some
exterior lights blink once and the system beeps once. When you
cannot set the security system
because the trunk or hood is open,
no exterior light blinks and/or no
beeper sounds.
Bef ore locking the doors, make sure
theremoteisnotinsidethevehicle. If a remote is within operating range
while you wash your vehicle or when
it is raining heavily, the door sensors
may respond by locking the doors.
Within 2 seconds of touching the
handle to lock the doors or locking
the doors with remote, pull the
handletomakesurethedoorsare
actually locked. The door unlock
sensors do not operate f or about 2
seconds af ter the doors are locked.
To change the ‘‘KEYLESS ACCESS
BEEP’’ setting, see page .
To change the ‘‘KEYLESS ACCESS
LIGHT FLASH’’ setting, see page
. If you touch the door lock sensor of
the f ront door with your hand
wearing a glove, the door sensor may
delay to respond or not respond by
locking the doors.
Theremoteisnotwithinthe
operating range.
The doors are open.
The ignition switch is not in the
LOCK (0) position.
The built-in key is in the ignition
switch.
The remote is too close to the
vehicle.
Theremotebatteryisdead.
The vehicle battery is dead.
111
113
L ocking the Doors
K eyless A ccess System
166
DOOR LOCK SENSOR
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y
2008 RL

Theclimatecontrolsystemhastwo
sensors. A sunlight sensor is in the
top of the dashboard, and a
temperature sensor is next to the
steering column. Do not cover the
sensors or spill any liquid on them.
Sunlight and T emperature
Sensors
Climat e Cont rol Sensors
206
SUNLIGHT SENSORTEMPERATURE SENSOR
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y
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y
2008 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.362 361
If equipped
A CC Components
A daptive Cruise Control (A CC)
280
ACC INDICATOR
MULTI-INFORMATION
DISPLAY
ACC BUTTON
DISTANCE BUTTON
CANCEL BUTTON SET/DECEL
BUTTON
RES/ACCEL BUTTON
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2008 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, but 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.
362
CONT INUED
Overview
Important Saf ety Precautions
A daptive Cruise Control (A CC)
Features
281
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2008 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.
When ACC is automatically
cancelled, the beeper sounds three
times, 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:
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.285
Automatic ACC Cancellation ACC Indicator
A daptive Cruise Control (A CC)
Features
291
ACC INDICATOR
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2008 RL

Message MessageDescription Description
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.
ACC has automatically cancelled
because its radar sensor in the f ront
grill is dirty.
You will hear three beeps. ACC has automatically cancelled
because of bad weather or other
conditions.
You will hear three beeps.
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.
A daptive Cruise Control (A CC)
Features
293
U.S.
U.S.
CANADA
CANADA
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2008 RL

The CMBS does not activate if the
speed dif f erence between your
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
Collision Mitigation Brake System (CMBS)
Overview
Driving
361
RADAR SENSOR
BRAKE ACTUATOR SEAT BELT
E-PRETENS
IONER
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2008 RL