2009 Acura RL suspension

Larger or smaller wheels and tires
can interf ere with the operation of
your vehicle’s anti-lock brakes and
other systems.
Modif ying your steering wheel or
any other part of your vehicle’s
saf ety systems could make the
systems inef f ective.
If you plan to modif y your vehicle,
consult your dealer.
Raising your vehicle with a non-
Acura suspension kit can af f ect
the handling and stability.
Lowering the vehicle with a non-
Acura suspension kit that
signif icantly reduces ground
clearance can allow the
undercarriage to hit speed bumps
or other raised objects, which
could cause the airbags to deploy.
Removing parts f rom your vehicle,
or replacing components with non-
Acura components could seriously
af f ect your vehicle’s handling,
stability, and reliability.
Herearesomeexamples:
Non-Acura wheels, because they
are a universal design, can cause
excessive stress on suspension
components and will not be
compatible with the tire pressure
monitoring system (TPMS).
Modif ying Your Vehicle
A ccessories and Modif ications
394
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

Many states and Canadian provinces
require special outside mirrors when
towing a trailer. Even if they don’t,
you should install special mirrors if
you cannot clearly see behind you, or
if the trailer creates a blind spot.
Askyourtrailersalesorrental
agency if any other items are
recommended or required f or your
towing situation.When preparing to tow, and bef ore
driving away, be sure to check the
f ollowing:
Your vehicle tires and spare are
properly inf lated, and the trailer
tires and spare are inflated as
recommended by the trailer
maker.
The vehicle has been properly
serviced, and the suspension and
the cooling system are in good
operating condition.
The trailer has been properly
serviced and is in good condition,
and the lights and brakes on the
trailer are working properly.
All weights and loads are within
limits.
Thehitch,safetychains,andany
other attachments are secure.
All items in or on the trailer are
properly secured and cannot shif t
while you drive.
Pre-T ow Checklist
A ddit ional T owing Equipment
Towing a Trailer
440
2009 RL

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CONT INUED
Maintenance Minder
453
:
If the message ‘‘SERVICE DUE NOW’’ does not appear more than 12 months
after the display is reset, change the engine oil every year.
See information on maintenance and emissions warranty on page .
Inspect idle speed every 160,000 miles (256,000 km).
Adjust the valves during services A, B, 1, 2, or 3 only if they are noisy. Independent of the maintenance messages in the multi-information
display, replace the brake fluid every 3 years.
NOTE:
Maintenance Main Items
Replace engine oil
Replace engine oil and oil filter
Inspect front and rear brakes
Check parking brake adjustment
Inspect these items: Tie rod ends, steering gear box, and boots
Suspension components
Driveshaft boots
Brake hoses and line (including ABS)
All fluid levels and condition of fluids
Exhaust system
Fuel lines and connections
A
B
Symbol
: 452
Maintenance Minder
2009 RL

When installing cables, f ollow the
manuf acturer’s instructions, and
mount them as tight as you can.
Make sure they are not contacting
the brake lines or suspension. Drive
slowly with them installed. If you
hear them coming into contact with
the body or chassis, stop and
investigate. Remove them as soon as
you begin driving on cleared roads.
Tires
488
Using the wrong chains, or not
properly installing chains, can
damage the brake lines and
cause a crash in which you can
be seriously injured or killed.
Follow all instructions in this
owner’s manual regarding the
selection and use of tire chains.Traction devices that are the wrong
size or improperly installed can
damage your vehicle’s brake lines,
suspension, body, and wheels. Stop
driving if they are hitting any part of
the vehicle.
2009 RL