2012 Acura MDX brakes

The vehicle stability assist (VSA)
system helps to stabilize the vehicle
during cornering if the vehicle turns
more or less than desired. It also
assists you in maintaining traction
while accelerating on loose or
slippery road surfaces. It does this by
regulating the engine's output and by
selectively applying the brakes.
When VSA activates, you may notice
that the engine does not respond to
the accelerator in the same way it
does at other times. There may also
be some noise from the VSA
hydraulic system. You will also see
the VSA system indicator blink.
The VSA system cannot enhance the
vehicle's driving stability in all
situations and does not control your
vehicle's entire braking system. It is
still your responsibility to drive and
corner at reasonable speeds and to
leave a sufficient margin of safety.
VSA Off Indicator
When VSA is off, the VSA off
indicator comes on as reminder.Vehicle Stability Assist
(VSA) System Indicator
When VSA activates, you will see the
VSA system indicator blink.
If this indicator comes on while
driving, pull to the side of the road
when it is safe, and turn off the
engine. Reset the system by
restarting the engine. If the VSA
system indicator stays on or comes
back on while driving, have the VSA
system inspected by your dealer.
NOTE:The main function of the VSA
system is generally known as
Electronic Stability Control (ESC).
The system also includes a traction
control function.If the indicator does not come on
when the ignition switch is turned to
the ON (II) position, there may be a
problem with the VSA system. Have
your dealer inspect your vehicle as
soon as possible.
CONTINUED
Vehicle Stability Assist (VSA
®), aka Electronic Stability Control (ESC), System
473
Driving

HitchWe strongly recommend that you
have your dealer install a class 3
hitch. Using non-Acura equipment
may result in serious damage to your
vehicle.
Read the trailer manufacturer's
instructions, and select the
appropriate draw bar for the height of
the trailer you will be towing.Weight Distributing HitchA weight distributing hitch is not
recommended for use with your
vehicle, as an improperly adjusted
weight distributing hitch may reduce
handling, stability, and braking
performance.
Trailer BrakesAcura recommends that any trailer
with a total trailer weight of 1,000 lbs
(450 kg) or more has its own brakes.
There are two common types of
trailer brakes: surge and electric.
Surge brakes are common for boat
trailers, since the brakes will get wet.
If you choose electric brakes, be sure
they are electronically actuated. Do
not attempt to tap into your vehicle's
hydraulic system. No matter how
successful it may seem, any attempt
to attach trailer brakes to your
vehicle's hydraulic system will lower
braking effectiveness and create a
potential hazard.
See your trailer dealer or rental
agency for more information on
installing electric brakes.A 4-pin gray connector is available as
an option at your dealer. This
connector has all of the circuits
required to install most electric
trailer brake controllers. A jumper
harness to adapt your electric trailer
brake controller to the vehicle is
included with the optional Acura
Genuine trailer hitch kit. To obtain a
connector and a trailer hitch kit, see
your dealer.
Have a qualified mechanic install
your trailer brake controller
following the trailer brake controller
manufacturer's instructions. Failure
to properly install the trailer brake
controller may increase the distance
it takes for you to stop your vehicle
when towing a trailer.
CONTINUED
Towing a Trailer
493
Driving

Pre-Tow Checklist
When preparing to tow, and before
driving away, be sure to check the
following:●
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.
●
All weights and loads are within
limits.
●
The hitch, safety chains, and any
other attachments are secure.
●
All items on and in the trailer are
properly secured and cannot shift
while you drive.
●
The lights and brakes on your
vehicle and the trailer are working
properly.
●
Your vehicle tires and spare are in
good condition and properly
inflated.
●
The trailer tires and spare are in
good condition and inflated as
recommended by the trailer
maker.Driving Safely With a Trailer
The added weight, length, and
height of a trailer will affect your
vehicle's handling and performance,
so driving with a trailer requires
some special driving skills and
techniques.
For your safety and the safety of
others, take time to practice driving
maneuvers before heading for the
open road, and follow the guidelines
in this section.
Towing a Trailer496

Towing Speeds and GearsDrive slower than normal in all
driving situations, and obey posted
speed limits for vehicles with trailers.
Use the D position when towing a
trailer on level roads. See‘‘
Driving on
Hills
’’for additional gear information.
When towing a fixed-sided trailer (e.
g., camper), do not exceed 55 mph
(88 km/h). At higher speeds, the
trailer may sway or affect vehicle
handling.If the automatic transmission fluid
temperature increases and exceeds
the specified limit, the A/T
temperature indicator comes on (see
page 72). You will also see a‘‘A/T
TEMP HIGH’’message on the multi-
information display.
Making Turns and BrakingMake turns more slowly and wider
than normal. The trailer tracks a
smaller arc than your vehicle, and it
can hit or run over something the
vehicle misses.
Allow more time and distance for
braking. Do not brake or turn
suddenly as this could cause the
trailer to jackknife or turn over.
Driving on HillsWhen climbing hills, closely watch
your temperature gauge. If it nears
the red (Hot) mark, turn the air
conditioning off, reduce speed and, if
necessary, pull to the side of the road
to let the engine cool.
If you must stop when facing uphill,
use the foot brake or parking brake.
Do not try to hold the vehicle in place
by pressing on the accelerator, as
this can cause the automatic
transmission to overheat.
When driving down hills, reduce
your speed and shift down to S
position, or use the paddle shifters to
lower gear (3 or 2) in the S position.
When towing a trailer, do not‘‘ride’’
the brakes, and remember, it takes
longer to slow down and stop when
towing a trailer.
CONTINUED
Towing a Trailer
497
Driving

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

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

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