brake sensor Acura RL 2007 Owner's Manual

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Your seat belt system includes lap/
shoulder belts in all five seating
positions. The front seat belts are
also equipped with automatic seat
belt tensioners and, on models with
collision mitigation brake system
(CMBS), seat belt e-pretensioners. The
seat belt system
includes an indicator on the
instrument panel and a beeper to
remind you and your passengers to
fasten your seat belts.
This system monitors the front seat
belts. If you turn the ignition switch
to the ON (II) position before your
seat belt is fastened, the beeper will
sound and the indicator will flash. If
your seat belt is not fastened before
the beeper stops, the indicator will
stop flashing but remain on.
If a front passenger does not fasten
their seat belt, the indicator will
come on about 6 seconds after the
ignition switch is turned to the ON
(II) position. If
either the driver or a front
passenger does not fasten their seat
belt, the beeper will sound and the
indicator will flash again at regular
intervals.
You will also see a ‘‘FAS TEN SEAT
BELT’’ or ‘‘FASTEN PASSENGER
SEAT BELT’’ message on the multi-
information display (see page ).
When no one is sitting in the front
passenger’s seat, or a child or small
adult is riding there, the indicator
should not come on and the beeper
should not sound.
This
system uses the same sensors
as the front airbags to monitor
whether the front seat belts are
latched or unlatched, and how much
weight is on the front passenger’s
seat (see pages and ). 31 32 79
Seat Belt System Components
Additional Inf ormation About Your Seat Belts
Driver and Passenger Saf ety
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The e-pretensioners do not activate
when the seat belts are not worn or
when the vehicle stability assist
(VSA) off indicator on the
instrument panel is on.
For added safety, the front seat belts
are equipped with e-pretensioners
that work in combination with the
collision mitigation brake system
(CMBS) (see page ) and the
brake pedal assist function (see page
). If
your vehicle gets too close to the
vehicle ahead of it in your lane, the
driver’s e-pretensioner slightly
retracts the seat belt to alert the
driver of the approaching vehicle. If
a collision with the vehicle in front of
you is likely, the e-pretensioners on
both front seats retract the seat belts
with enough force to properly
restrain you and your front
passenger. After they activate, the
e-pretensioners release the retracted
seat belts.
To get the full benefit of the
e-pretensioners, you and your front
passenger must sit normally in your
seats and wear your seat belts
properly (see page ). In
addition, the front passenger’s
e-pretensioner does not activate
when the passenger’s airbag is
automatically turned off because the
weight sensor detects a child in the
front passenger’s seat.
If
the automatic seat belt tensioners
are activated by a collision, both
front seat belts and all related
components must be
replaced (see page ). If only the
e-pretensioners were activated, no
components need to be replaced.
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On models with Collision Mitigation
Brake System
Seat Belt E-pretensioners
Additional Inf ormation About Your Seat Belts
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This indicator has two functions:
Itcomesonwhenyouturnthe
ignition switch to the ON (II)
position. It is a reminder to check
the parking brake. Driving with
the parking brake not fully
released can damage the rear
brakes, axles, and tires.
If you drive without releasing the
parking brake, a beeper will sound,
and you will also see a ‘‘RELEASE
PARKING BRAKE’’ message on
the multi-information display (see
page ).
If it stays on after you have fully
released the parking brake while
the engine is running, or if it
comes on while driving, it can
indicate a problem in the brake system.
You will also see a
‘‘BRAKE FLUID LOW’’ or
‘‘CHECK BRAKE SYSTEM’’
message on the multi-information
display. For more information, see
page .
This indicator comes on when you
turn the ignition switch to the ON
(II) position. If it comes on at any
other time, it indicates that the
passenger’s side airbag has
au tomatically shut off. You will also
see a ‘‘PASSENGER SIDE AIRBAG
OFF’’ message on the multi-
information display (see page ).
For more information, see page .This
indicator comes on briefly when
you turn the ignition switch to the
ON (II) position. If it comes on at
any other time, it indicates a
poten tial problem with your front
airbags. This indica tor will also alert
you to a poten tial problem with your
side airbags, passenger’s side airbag
automatic cutoff system, side curtain
airbags, automatic seat belt
tensioners driver’s seat position
sensor, the front passenger’s weight
sensors, or, on models with ACC,
seat belt e-pretensioners. You will
also see a ‘‘CHECK AIRBAG
SYSTEM’’ message on the multi-
inf ormation display (see page ).
For more inf ormation, see page .
1.
2.
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35
445
79
Instrument Panel Indicators
Parking Brake and Brake System
Indicator Supplemental Restraint
System Indicator
Side Airbag Of f Indicator
Inst rument s and Cont rols
63
U.S. Canada U.S. Canada
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This indicator comes on when the
security system is set. For more
info rmation, see page .
This
indicator normally comes on for
a few seconds when you turn the
ignition switch to the ON (II)
position.
Itcomesonasareminderthatyou
have turned off the adaptive front
lighting system (AFS).
This indicator blinks when there is a
problem with the AFS syste m; you
will also see a ‘‘CHECK ADAPTIVE
FRONT LIGHTING SYSTEM’’
message on the multi-information
display (see page ). If this
happens, stop the vehicle in a safe
place, turn the ignition switch to the
ACCESSORY (I) or the LOCK (0)
position, and restart the engine. If
the indicator does not go off or
blinks again, take your vehicle to a
dealer to have it checked. For more
info rmation, see page . This
indicator normally comes on for
a few seconds when you turn the
ignition switch to the ON (II)
position. It also comes on as a reminder
that you have turned off
the collision mitigation brake system
(CMBS).
The CMBS indicator also comes on
if dirt or other debris blocks the
radar sensor in the front grille. You
will also see a ‘‘CHECK CMBS
RADAR SENSOR’’ message on the
multi-information display. When you
clean the radar sensor, the indicator
should go off the next time you turn
the ignition switch to the ON (II)
position.
If the indicator comes on at any
other time, there is a problem with
the CMBS. You will also see a
‘‘CHECK CMBS SYSTEM’’ message
on the multi-information display. If
this happens, take your vehicle to a
dealer, and have it checked. For
more information, see page .
When this indicator is on, the CMBS
is not working.
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359
If equipped
If equipped
A daptive Front L ighting
System (A FS) IndicatorSecurity System Indicator
Collision Mitigation
Brake System (CMBS)
Indicator
Instrument Panel Indicators
Inst rument s and Cont rols
69
SECURITY SYSTEM INDICATOR
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The radar sensor for ACC is shared
with the collision mitigation brake
system (CMBS). For more
information on the radar sensor, see
page . For more information 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.
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If equipped
A CC Components
A daptive Cruise Control (A CC)
278
ACC INDICATOR
MULTI-INFORMATION
DISPLAY
RES/ACCEL
BUTTON
ACC BUTTON
DISTANCE BUTTON
CANCEL BUTTON SET/DECEL
BUTTON
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Adaptive cruise control (ACC) allows
you to maintain a set speed and keep
the vehicle ahead of you and your
vehicle at a safe distance without
having to use the accelerator pedal
or the brake pedal. If
the vehicle ahead of you slows
down suddenly or another vehicle
cu ts in front of your vehicle, ACC
al erts you by sounding a beeper and
displaying a message on the multi-
information display.
TheACCradarsensorinthefront
grille can detect and monitor the
distance of a vehic le up to 328 feet
(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.
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Overview
Important Saf ety Precautions
A daptive Cruise Control (A CC)
Features
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MessageMessage
Description 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
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U.S.
CANADA
CANADA
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The CMBS does not activate if the
speed difference between your
ve hicles 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 front of you. It
is designed to reduce the speed of
your vehicle before an unavoidable
collision occu rs and, if possible, to
alert you to a poten tial 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 front grille can sense
a vehicle ahead of you. When your
vehicle gets too close to the
ve hicle 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.
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If equipped
Collision Mitigation Brake System (CMBS)
Overview
Driving
355
RADAR SENSOR
BRAKE ACTUATOR SEAT BELT
E-PRETENS
IONER
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The radar sensor is located behind
the Acura emblem in the f ront grille.
If the emblem is covered with mud,
dirt, dead leaves, wet snow, etc., or if
you put a sticker on it, the CMBS will
automatically shut off, and the
CMBS indicator on the instrument
panel will come on. You will also see
a CHECK CMBS RADAR SENSOR
message on the multi-inf ormation
display f or about 5 seconds.Always keep the emblem clean. If it
gets dirty, clean it with water or a
mild detergent. Never use chemical
solvents or polishing powder.Do not allow anything to impact the
radar sensor or the emblem. If either
of these parts receives a strong
impact, turn off the system by
pressing the CMBS of f switch, and
have your vehicle checked by a
dealer. If the f ront grille ever needs
to be repaired, consult a dealer f irst.
There are three bolts on the sides of
the radar sensor. Do not tamper with
these bolts, or you may cause the
system to malf unction. If the f ront emblem or the radar
sensor ever needs to be removed,
take your vehicle to a dealer.
Collision Mitigation Brake System (CMBS)
Radar Sensor
356
EMBLEM
BOLTS
(Do not tamper)
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When the CMBS is on, the radar
sensor constantly scans for vehicles
ahead of you. This means that
driving on a ro ad with a few or no
vehicles could cause a CHECK
CMBS RADAR SENSOR message to
appear on the multi-information
display. This is normal and not a
cause for concern. The
radar sensor may not always
scan as intended. Here are two
examples:
Thetiresarenotcorrectly
maintained. Always make sure the
tire pressures are correct (see
page ), and that the tires are
the correct size and in good
condition (see Tires on page ).
Your
vehicle is tilted because of a
heavy load in the rear or from
modifications to the suspension.
Do not overload your vehicle (see
Carrying Cargo on page ), and
do not make any modifi cations to
the suspension (see Accessories
and Modifications on page ).
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Collision Mitigation Brake System (CMBS)
Driving
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