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
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
modif ications to the suspension.
Do not overload your vehicle (see
Carrying Cargo on page ), and
do not make any modif ications to
the suspension (see Accessories
and Modif ications on page ). 395
393
480 480
Collision Mitigation Brake System (CMBS)
Driving
421
When the CMBS is on, the radar sensor
constantly scans f or vehicles ahead of
you. This means that driving on a road
with a f ew or no vehicles could cause a
CHECK CMBS RADAR SENSOR
message to appear on the multi-
inf ormation display. This is normal
and not a cause f or concern.
2009 RL
