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
The radar sensor is located under
the Acura emblem in the f ront grille.
If the radar sensor cover is covered
with mud, dirt, dead leaves, wet
snow, etc., or if you put a sticker on
it, the CMBS will automatically shut
of f , 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 radar sensor cover
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
radarsensorortheradarsensor
cover. 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.
If the radar sensor cover or the radar
sensor ever needs to be removed,
take your vehicle to a dealer.
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.
Radar Sensor
Collision Mitigation Brake System (CMBS)
420
RADAR SENSOR COVER
BOLTS
(Do not tamper)
2009 RL
If the system senses a likely collision
with a vehicle or object ahead of you,
it alerts you with an audible and a
visual alarm.The audible alarm is a constant
beeping sound; the visual alert is an
amber colored BRAKE message that
f lashes on the multi-inf ormation
display. If these alarms come on,
take the appropriate means to
prevent a collision (apply the brakes,
change lanes, etc.).To turn the CMBS off, press the
CMBS OFF switch on the dashboard
f or about 1 second. When you do this,
a beeper sounds, a CMBS indicator
on the instrument panel comes on,
and a CMBS OFF message appears
on the multi-information display. To
turn the system back on, press the
switch again for about 1 second.
Collision Alarm CMBS OFF Switch
Collision Mitigation Brake System (CMBS)
422
CMBS OFF SWITCH
2009 RL
The CMBS will automatically
recover when these conditions are
improved.
Any of the conditions below can
cause the CMBS to shut of f . When
the system shuts off, the CMBS
indicator in the instrument panel
comes on, and a CHECK CMBS
SYSTEM message appears on the
multi-inf ormation display f or about 5
seconds.
An abnormal tire condition is
detected (wrong tire size, f lat tire,
etc.).
Extended of f -road or mountainous
driving.
Driving your vehicle with the
parking brake applied.
Driving your vehicle in bad
weather(rain,fog,snow,etc.).
A dirty emblem on the f ront grille.
When you turn the ignition switch to
the ON (II) position, the CMBS is
turned on if it was on previously.
Automatic Shut Of f
Collision Mitigation Brake System (CMBS)
Driving
423
2009 RL
Your vehicle is equipped with a tire
pressure monitoring system (TPMS)
that turns on every time you start the
engine and monitors the pressure in
your tires while driving.
Each tire has its own pressure
sensor. If the air pressure of a tire
becomes signif icantly low, the
sensor in that tire immediately sends
a signal that causes the low tire
pressure/TPMS indicator in the
instrumental panel and the
appropriate tire position indicator on
thetirepressuremonitoronthe
multi-inf ormation display (see page)tocomeon. Refer to page for tire inflation
guidelines.
If there is a problem with the TPMS,
this indicator begins to f lash. It stops
flashing after approximately 1
minute, then stays on. You will also
see a ‘‘CHECK TPMS SYSTEM’’
message on the multi-inf ormation
display (see page ).
When the low tire pressure/TPMS
indicator is on, one or more of your
tires is signif icantly underinf lated.
The multi-inf ormation display also
shows a ‘‘CHECK TIRE PRESSURE’’
message (see page ). You should
stop and check your tires as soon as
possible, and inflate them to the
proper pressure as indicated on the
vehicle’s tire inf ormation placard.
Driving on a signif icantly under
inf lated tire causes the tire to
overheat and can lead to tire failure.
Underinf lation also reduces f uel
efficiency and tire tread life, and may
af f ect the vehicle’s handling and
stopping ability.
Becausetirepressurevariesby
temperature and other conditions,
the low tire pressure/TPMS
indicator may come on unexpectedly. For example, if you check and fill
your tires in a warm area, then drive
in extremely cold weather, the tire
pressure will be lower than
measured and could be underinf lated
and cause the low tire pressure/
TPMS indicator to come on. Or, if
youcheckandadjustyourtire
pressure in cooler conditions, and
drive into extremely hot conditions,
the tire may become overinf lated.
However, the low tire pressure/
TPMS indicator will not come on if
thetiresareoverinflated.
431 431
480
433
CONT INUED
Low Tire Pressure/
TPMS Indicator
Tire Pressure Monitoring System (TPMS)
Driving
429
2009 RL
When cruise control is on while
driving, the pressure reading cannot
be checked by the tire pressure
monitor on the multi-inf ormation
display.
When the TPMS is functioning
normally, you can see the tire
pressure readings of each tire in psi
(U.S. models) or kPa (Canadian
models) by pressing the SEL/
RESET button while the multi-
inf ormation display shows the tire
pressure monitor.
If the low tire pressure/TPMS
indicator and the low tire position on
the low tire pressure monitor do not
go out after inflating the tires to the
specified values, have your dealer
check the system as soon as possible.
If one or more tires have low
pressure, the low tire pressure/
TPMS indicator on the instrument
panel also comes on (see page ).429
T ire Pressure Readings
Tire Pressure Monitoring System (TPMS)
432
CANADA
U.S.
2009 RL
In this case, the starter motor’s
speed sounds normal, or even f aster
than normal, when you turn the
ignition switch to the START (III)
position, but the engine does not run.Are you using the proper starting
procedure? Ref er to on page . There may be an electrical
problem, such as no power to the
f uel pump. Check all the f uses
(see page ).
If youfindnothingwrong,youwill
need a qualif ied technician to f ind
the problem. See on page .
Are you using a properly coded
built-in key or remote? An
improperly coded built-in key or
remote will cause the immobilizer
system indicator in the instrument
panel to blink rapidly (see page ).
Do you have f uel? Check the f uel
gauge; the low f uel indicator may
not be working. Although this seems like a simple
procedure, you should take several
precautions.
You cannot start your vehicle by
pushing or pulling it.
64 403
512
519
T he Starter Operates Normally
Starting the
Engine Emergency
Towing Jump Starting
If the Engine Won’t Start, Jump Starting
500
A battery can explode if you do
not follow the correct procedure,
seriously injuring anyone
nearby.
Keep all sparks, open flames,
and smoking materials away
from the battery.
2009 RL
CONT INUED
................................................
Keys .150
................
Keyless Access System .166
...............
Keyless Access Remote .167
...........
Keyless Memory Settings .173
...
Identif ication Number, Vehicle .522
Ignition
............................................
Keys .150
.........................................
Switch .152
............
Timing Control System .533
......................
Immobilizer System .151
.........
Important Safety Precautions .8
.........................................
Indicators .62
ABS (Anti-lock Brake ............................
System) .64,417
Adaptive Front lighting ..................
System (AFS) .69,144
Brake (Parking and Brake ............................
System) .63,508
................
Charging System .62,506
Collision Mitigation Brake
..............
System (CMBS) .69,424
.............................
Cruise Control .66
Electronically Controlled Power
........
Steering System (ECPS) .68
.....................................
Fog Light .65
...................................
High Beam .65
........
Key (Immobilizer System) .64
.....
Keyless Access System .68,179 .....................................
Lights On .64
......................................
Low Fuel .66
................
Low Oil Pressure .62,506
Low Tire Pressure/TPMS
...........................
Indicator .67,429
.............
Malf unction (MIL) .62,507
.......................................
Message .68
..............
Seat Belt Reminder .21,62
..................
Security System .69,315
......................................
SH-AWD .66
...........................
Side Airbag Of f .63
...............................................
SRS .63
Turn Signal and Hazard
...................................
Warning .64
..
VSA (Vehicle Stability Assist) .65
VSA (Vehicle Stability Assist)
.........................
Activation .65,435
.........
Indicators, Instrument Panel .61
...............................
Inf ant Restraint .43
......................................
Inf ant Seats .43
..........
Tether Anchorage Points .51
...................
Inf lation, Proper Tire .480
.................................
Inside Mirror .161
.............................
Inspection, Tire .483
............................
Instrument Panel .61
......
Instrument Panel Brightness .146 ................
Interf ace Dial .205,213,338
...............................
Interior Lights .200
........................................
Introduction .i
.................
Jacking up the Vehicle .496
.......................................
Jack, Tire .495
................................
Jump Starting .500
.......................
Label, Certif ication .522
...............
Lane Change, Signaling .140
........................
Lap/Shoulder Belts .22
........................
Lights On Indicator .64
Index
INDEX
I
J
K
L
V
2009 RL