brake Acura MDX 2012 Workshop Manual

Under these conditions, trailer
stability assist begins to stabilize the
vehicle/trailer combination by
reducing the vehicle speed. The
control unit sends signals to
selectively apply the brakes and
regulate the engine output. The
brake lights of your vehicle will be
turned on automatically by the
system even if you do not keep the
pressure on the brake pedal.
When the brakes are applied, the
trailer's brake lights come on along
with the vehicle brake lights.
When the trailer stability assist
activates, you will see the VSA
system indicator blink. There may
also be some noise from the VSA
hydraulic system.Trailer stability assist cannot prevent
a loss of control. Always reduce the
vehicle speed and steer firmly. Do
not brake suddenly or make quick
steering motion. It could cause the
trailer to jackknife or turn over and
the system becomes ineffective.
Trailer stability assist cannot prevent
swaying that can occur in crosswinds
and in normal and emergency
driving maneuvers. It helps only to
stabilize the vehicle/trailer
combination in these conditions,
after the oscillation becomes severe.
Trailer stability assist will also be
ineffective while driving at high
speed or towing a trailer with a high
center of gravity.
Always obey the recommended
speed limits for towing a trailer, see
page 497.Trailer Stability Assist Failure
The control unit monitors the VSA
circuitry and the braking system. If
there is a problem with the brake
lighting system, the trailer stability
assist function shuts down and the
‘‘CHECK TRAILER STABILITY
ASSIST’’message appears on the
multi-information display.
If you see this message, have your
vehicle checked at your dealer as
soon as possible.
CONTINUED
Trailer Stability Assist
499
Driving

In this case, your vehicle still has the
VSA traction and stability
enhancement, but it will not have the
trailer stability assist function.
If there is a problem with the VSA
system, the system and trailer
stability assist shuts off. The VSA
system indicator also come on (see
page 473).
The ABS indicator and the brake
system indicator may also come on
along with the VSA system indicator.
If you see these warning indicators,
have your vehicle checked at your
dealer as soon as possible.If you turn off the VSA, the trailer
stability assist function also shuts off.
Press and hold the VSA off button
until you hear a beep (see page 474).
The VSA off indicator comes on as a
reminder. Press and hold the switch
again to turn the system on.
The function turns on every time you
start the engine along with the VSA,
even if you turned it off the last time
you drove the vehicle.Off-Highway Driving Guidelines
General Information
Your vehicle has been designed
primarily for use on pavement. But
its higher ground clearance and
super handling-all wheel drive
(SH-AWD) system allow you to
occasionally travel on unpaved roads,
to campgrounds, picnic sites, and
similar locations. It is not designed
for trailblazing, mountain climbing,
or other challenging off-road
activities.
If you decide to drive on unpaved
roads, you will find that it requires
somewhat different driving skills.
Your vehicle will also handle
somewhat differently than it does on
pavement. Be sure to pay extra
attention to the precautions and tips
in this section, and get acquainted
with your vehicle before leaving the
pavement.Trailer Stability Assist, Off-Highway Driving Guidelines500

Accelerating and Braking
For better traction on all surfaces,
accelerate slowly and gradually build
up speed. If you try to start too fast
on wet soil, mud, snow, or ice, you
might not have enough traction to
get underway, and you may dig
yourself a hole. Starting with the shift
lever in the D position will help you
have a smoother start on snow or ice.
Keep in mind that you will usually
need more time and distance to
brake to a stop on unpaved surfaces.
Avoid hard braking. Do not‘‘pump’’
the brakes; let the anti-lock braking
system pump them for you.
Avoiding Obstacles
Debris in the road can damage your
suspension or other components.
Because your vehicle has a high
center of gravity, driving over a large
obstacle, or allowing a wheel to drop
into a deep hole can cause your
vehicle to tip or roll over.Driving on Slopes
If you can't clearly see all conditions
or obstacles on a slope, walk the
slope before you drive on it. If you
have any doubt whether or not you
can safely drive on the slope, don't
do it. Find another route.
If you are driving up a hill and find
that you cannot continue,
do not try to
turn around.
Your vehicle could roll
over. Slowly back down the hill,
following the same route you took up
the hill.
Crossing a Stream
Before driving through water, stop,
get out if necessary, and make sure
that:
●
The water is not deep enough to
cover your wheel hubs, axles, or
exhaust pipe. You could stall and
not be able to restart your engine.
The water can also damage
important vehicle components.
●
The banks are sloped so you can
drive out.
●
The water is not flowing too fast.
Deep rushing water can sweep you
downstream. Even very shallow
rushing water can wash the
ground from under your tires and
cause you to lose traction and
possibly roll over.
●
The banks and surface under the
water provide good traction. The
water may hide hazards such as
rocks, holes, or mud.
If you decide it is safe to drive
through water, choose a suitable
speed, and proceed without shifting,
changing speeds, stopping, or
shutting off the engine.
After driving through water, test your
brakes. If they got wet, gently
‘‘pump’’them while driving slowly
until they operate normally.
Off-Highway Driving Guidelines502

This section explains why it is
important to keep your vehicle well
maintained and how to follow basic
maintenance safety precautions.
This section also includes
instructions on how to read the
Maintenance Minder messages on
the multi-information display, and
instructions for simple maintenance
tasks you may want to take care of
yourself.
If you have the skills and tools to
perform more complex maintenance
tasks on your vehicle, you may want
to purchase the service manual. See
page 597 for information on how to
obtain a copy, or see your dealer.U.S. Vehicles:
Maintenance, replacement, or
repair of emissions control
devices and systems may be done
by any automotive repair
establishment or individual using
parts that are‘‘certified’’to EPA
standards.Maintenance Safety
.....................
506
Maintenance Minder
TM
...............
507
Fluid Locations
...........................
515
Engine Compartment Cover
........
516
Adding Engine Oil
......................
517
Changing the Engine Oil and
Filter
.......................................
518
Engine Coolant
...........................
520
Windshield Washers
...................
522
Automatic Transmission Fluid
....
523
Brake Fluid
.................................
525
Power Steering Fluid
..................
526
Timing Belt
.................................
526
Lights
..........................................
527
Dust and Pollen Filter
.................
534
Cleaning the Seat Belts
...............
534
Floor Mats
..................................
535
Wiper Blades
..............................
536
Tires
...........................................
540
Checking the Battery
..................
547
Vehicle Storage
...........................
548
Maintenance
505
Maintenance

All service items not detailed in this
section should be performed by a
certified technician or other qualified
mechanic.
Important Safety Precautions
To eliminate potential hazards, read
the instructions before you begin,
and make sure you have the tools
and skills required.●
Make sure your vehicle is parked
on level ground, the parking brake
is set, and the engine is off.
●
To clean parts, use a commercially
available degreaser or parts
cleaner, not gasoline.
●
To reduce the possibility of fire or
explosion, keep cigarettes, sparks,
and flames away from the battery
and all fuel-related parts.
●
Wear eye protection and protective
clothing when working with the
battery or compressed air.Improperly maintaining this
vehicle, or failing to correct a
problem before driving can
cause a crash in which you can
be seriously hurt or killed.
Always follow the inspection
and maintenance
recommendations and
schedules in this owner's
manual.
Potential Vehicle Hazards
●
Carbon Monoxide poison from
engine exhaust.Be sure there is
adequate ventilation whenever you
operate the engine.
●
Burns from hot parts.Let the
engine and exhaust system cool
down before touching any parts.
●
Injury from moving parts.Do
not run the engine unless
instructed to do so.Failure to properly follow
maintenance instructions and
precautions can cause you to
be seriously hurt or killed.
Always follow the procedures
and precautions in this owner's
manual.
Some of the most important safety
precautions are given here. However,
we cannot warn you of every
conceivable hazard that can arise in
performing maintenance. Only you
can decide whether or not you
should perform a given task.
Maintenance Safety506

U.S. Vehicles:
According to state and federal
regulations, failure to perform
maintenance on the items marked
with＃will not void your emissions
warranties. However, Acura
recommends that all maintenance
services be performed in accordance
with the intervals indicated by the
multi-information display.Owner's Maintenance Checks
You should check the following
items at the specified intervals. If you
are unsure of how to perform any
check, turn to the appropriate page
listed.
●
Engine oil level－Check every
time you fill the fuel tank. See page
427.
●
Engine coolant level－Check the
radiator reserve tank every time
you fill the fuel tank. See page 427.
●
Automatic transmission－Check
the fluid level monthly. See page
523.
●
Brakes－Check the fluid level
monthly. See page 525.
●
Tires－Check the tire pressure
monthly. Examine the tread for
wear and foreign objects. See page
541.
●
Lights－Check the operation of
all the lights monthly. See page
527.
Maintenance Minder
TM
513
Maintenance

Symbol Maintenance Main Items
A
●Replace engine oil
1
B
●Replace engine oil
1and 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 lines (including ABS/VSA)●All fluid levels and condition of fluids●Exhaust system
＃
●Fuel lines and connections
＃
1: 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 in the
first column on page 512.
NOTE:
●Independent of the Maintenance Midner information, replace
the brake fluid every 3 years.●Inspect idle speed every 160,000 miles (256,000 km).●Adjust the valves during services A, B, 1, 2, or 3 if they are
noisy.Symbol Maintenance Sub Items
1
●Rotate tires
2●Replace air cleaner element
If you drive in dusty conditions, replace every 15,000
miles (24,000 km).●Replace dust and pollen filter
If you drive primarily in urban areas that have high
concentrations of soot in the air from industry and from
diesel-powered vehicles, replace every 15,000 miles
(24,000 km).●Inspect drive belt
3●Replace transmission and transfer fluid
4●Replace spark plugs●Replace timing belt and inspect water pump
If you drive regularly in very high temperatures (over
110°F, 43°C), in very low temperatures (under－20°F,－
29°C), or towing a trailer, replace every 60,000 miles (U.
S.)/100,000 km (Canada).●Inspect valve clearance
5●Replace engine coolant
6●Replace rear differential fluid
Driving in mountainous areas at very low vehicle
speeds or trailer towing results in higher level of
mechanical (shear) stress to fluid. This requires
differential fluid changes more frequently than
recommended by the Maintenance Minder. If you
regularly drive your vehicle under these conditions,
have the differential fluid changed at 7,500 miles (12,000
km), then every 15,000 miles (24,000 km).
Maintenance Minder
TM
Maintenance Minder
514

POWER STEERING FLUID
(Red cap)
ENGINE COOLANT
RESERVOIR
WASHER FLUID
(Black cap)
ENGINE OIL DIPSTICK
(Orange loop)
RADIATOR CAPAUTOMATIC
TRANSMISSION
FLUID DIPSTICK
(Yellow loop) ENGINE OIL
FILL CAP BRAKE FLUID
(Black cap)
Fluid Locations
515
Maintenance

Independent of the Maintenance
Midner information, replace the
brake fluid every 3 years.
Check the fluid level in the brake
fluid reservoir monthly.Always use Honda Heavy Duty
Brake Fluid DOT 3. If it is not
available, you should use only DOT 3
or DOT 4 fluid, from a sealed
container, as a temporary
replacement.
Using any non-Honda brake fluid can
cause corrosion and decrease the life
of the system. Have the brake
system flushed and refilled with
Honda Heavy Duty Brake Fluid DOT
3 as soon as possible.
Brake fluid marked DOT 5 is not
compatible with your vehicle's
braking system and can cause
extensive damage.
The fluid level should be between
the MIN and MAX marks on the side
of the reservoir. If the level is at or
below the MIN mark, your brake
system needs attention. Have the
brake system inspected for leaks or
worn brake pads.
MIN MAX
Brake Fluid
525
Maintenance

2. Remove the socket by turning it
one-quarter turn counterclockwise.
3. Pull the bulb straight out of its
socket.
4. Push the new bulb straight into
the socket until it bottoms.
5. Turn on the lights to make sure
the new bulb is working.6. Put the socket back into the light
assembly, and turn it clockwise to
lock it in place.
7. Place the cover back into the light
assembly. Push it up until it locks
in place.Side Turn Signal Light
Each outside mirror has side turn
signal lights. The lights should be
replaced by your dealer.
High-mount Brake Light
The high-mount brake light should
be replaced by your dealer.
Rear License Plate Bulb
The license plate has two lights
above it. The bulbs should be
replaced by your dealer.
BULB
SOCKET
Lights
533
Maintenance