Acura MDX 2003 Owner's Manua

The VSA system indicator (see page) comes on and stays on when
there is a problem with the VSA
system. The VSA Activation
indicator will also come on. If the VSA indicator comes on while
driving, pull to the side of the road
when it is saf e and turn of f the
engine. Reset the system by
restarting the engine, and watch the
VSA system indicator. If the
indicator remains on, or comes back
on while driving, have the VSA
system inspected by your Acura
dealer.
If the indicator does not come on
when the ignition switch is turned
ON(II),theremaybeaproblem
with the VSA system. Have your
dealer inspect your vehicle as soon
as possible.
Without VSA, your vehicle will have
normal braking and cornering ability,
but it will not have VSA traction and
stability enhancement.
This switch is under the lef t vent.
Press it to turn the Vehicle Stability
Assist system on and of f .
When VSA is off, the VSA Activation
Indicator light comes on as a
reminder. Pressing the switch again
turns the system back on.
73
CONT INUED
Vehicle Stability Assist (VSA) System
Driving
VSA Syst em Indicat orVSA Of f Switch
267
VSA SYSTEM INDICATOR

VSA is turned on every time you
start the engine, even if you turned it
off the last time you drove the
vehicle.Driving with varying tire or wheel
sizes may cause the VSA to
malf unction. When replacing tires,
make sure they are of the same size
and type as your original tires (see
page ).
Deactivate the VSA system if you
need to drive with the compact spare
tire installed (see page ).
If you install winter tires, make sure
they are the same size as those that
were originally supplied with your
car. Exercise the same caution
during winter driving as you would if
your vehicle was not equipped with
VSA.337
360
Vehicle Stability Assist (VSA) System
Driving
VSA and Tire Sizes
268

µµAlways drive
slower than you would in dry
weather. It takes your vehicle longer
to react, even in conditions that may
seem just barely damp. Apply
smooth, even pressure to all the
controls. Abrupt steering wheel
movements or sudden, hard appli-
cation of the brakes can cause loss of
control in wet weather. Be extra
cautious f or the f irst f ew miles
(kilometers) of driving while you
adjust to the change in driving
conditions. This is especially true in
snow. A person can f orget some
snow-driving techniques during the
summer months. Practice is needed
to relearn those skills.
Exercise extra caution when driving
in rain af ter a long dry spell. Af ter
months of dry weather, the f irst
rains bring oil to the surf ace of the
roadway, making it slippery.
Rain, f og, and snow conditions re-
quire a dif f erent driving technique
because of reduced traction and
visibility. Keep your vehicle well-
maintained and exercise greater
caution when you need to drive in
bad weather. The cruise control
should not be used in these condi-
tions. Being able to see
clearly in all directions and being
visible to other drivers are important
in all weather conditions. This is
more dif f icult in bad weather. To be
seen more clearly during daylight
hours, turn on your headlights.
Inspect your windshield wipers and
washers f requently. Keep the wind-
shield washer reservoir f ull of the
proper f luid. Have the windshield
wiper blades replaced if they start to
streak the windshield or leave parts
unwiped. Use the def rosters and air
conditioning to keep the windows
f rom f ogging up on the inside (see
page ). 140
CONT INUED
Driving T echnique Visibility
Driving in Bad Weather
Driving269

µCheck your tires
f requently f or wear and proper
pressure. Both are important in
preventing ‘‘hydroplaning’’ (loss of
traction on a wet surface). In the
winter, mount snow tires on all f our
wheels f or the best handling.
Watch road conditions caref ully,
they can change f rom moment to
moment. Wet leaves can be as slip-
pery as ice. ‘‘Clear’’ roads can have
patches of ice. Driving conditions
can be very hazardous when the
outside temperature is near f reezing.
The road surf ace can become
covered with areas of water puddles
mixed with areas of ice, so your
traction can change without warning.
Be caref ul when downshif ting. If
traction is low, you can lock up the
drive wheels f or a moment and cause
askid. Be very cautious when passing, or
beingpassedbyothervehicles.The
spray f rom large vehicles reduces
your visibility, and the wind buf f eting
can cause you to lose control.
Traction
Driving in Bad Weather
Driving270

Your MDX has been designed to tow
a trailer, as well as f or carrying
passengers and their cargo.
To saf ely tow a trailer, you should
observe the load limits, use the
proper equipment, and f ollow the
guidelines in this section.
Be sure to read thesectiononpage if you
plan to tow off paved surfaces.
The
maximum weight you can tow
depends on several f actors. See
page f or limits f or your towing
situation. Towing a load that is too
heavy can seriously af f ect your
vehicle’s handling and
perf ormance. The weight that
the tongue of a f ully loaded trailer
puts on the hitch should be 5 to 10
percent of total trailer weight f or
boat trailers, and 8 to 15 percent of
total trailer weight for all other
trailers. See page f or limits f or
your towing situation.
285
273 273
Off-Highway
Guidelines
CONT INUED
Load Limits
T otal T railer Weight: T ongue L oad:
Towing a Trailer
Driving271
Exceeding any load limit or
improperly loading your vehicle
and trailer can cause a crash in
which you can be seriously hurt
or killed.
Check the loading of your
vehicle and trailer carefully
beforestartingtodrive.

Too much tongue load reduces f ront-
tire traction and steering control.
Too little tongue load can make the
trailer unstable and cause it to sway.The GCWR must be reduced 2
percent f or every 1,000 f eet (305
meters) of elevation. The maximum allowable weight of
the f ully loaded vehicle and trailer is
9700 lbs (4410 kg) with the proper
hitch and f luid coolers (See pagef or inf ormation about f luid
coolers.)
The maximum allowable weight of
the vehicle, all occupants, all cargo
and the tongue load is 5730 lbs (2600
kg).
The maximum allowable weights on
the vehicle axles are 2890 lbs (1310
kg) on the f ront axle, and 2945 lbs
(1335 kg) on the rear axle. 277
Gross Vehicle Weight Rating
(GVWR):
Gross Axle Weight Rating
(GA WR): Gross Combined Weight Rating
(GCWR):
Towing a Trailer
Driving272

Î
Î
ÎNumber of
Occupants 2
3
4
5
6
7 T owing is Not Recommended
Number of
Occupants 2
3
4
5
6
7 T owing is Not Recommended
Equipped with transmission cooler and power steering f luid cooler.
Max. T ongue Load
Max. T railer Weight
Max. T ongue Load
Max. T railer Wight Equipped with transmission cooler and power steering f luid cooler.
Towing a Trailer
Driving273
Total Trailer Weight and Tongue Load Limits: BOAT TRAILERS
Total Trailer Weight and Tongue Load Limits: OTHER TYPES OF TRAILERS
The corresponding weight limits assume occupants fill seats from the front of the vehicle to the back, each occupant weighs 150 lbs (70 kg) and each has 1 5lbs(7
kg) of luggage in the cargo area.
450 lbs (205 kg)
410 lbs (185 kg)
310 lbs (140 kg)
215 lbs (100 kg) 90 lbs (40 kg)
4500 lbs (2045 kg)
4500 lbs (2045 kg)
4500 lbs (2045 kg)
4000 lbs (1820 kg)
1700 lbs (770 kg)
450 lbs (205 kg)
410 lbs (185 kg)
310 lbs (140 kg)
215 lbs (100 kg)90 lbs (40 kg)
3500 lbs (1590 kg)
3500 lbs (1590 kg)
3000 lbs (1365 kg)
2000 lbs (910 kg)
1000 lbs (455 kg)

Thebestwaytoconfirmthatall
loads are within limits is to check
them at a public scale.
To help ensure a saf e drive to a scale,
or if you cannot get to a public scale
to check the weights of your rig, we
recommended that you estimate
your total trailer weight and tongue
load as described below.
To estimate your total trailer weight,
add the weight of the trailer (as
quoted by the trailer manuf acturer)
together with everything in or on the
trailer. Then ref er to the tables on
page to conf irm that you do not
exceed the limit f or your conditions.To estimate tongue load:
Park the vehicle on level ground.
Measure f rom the ground to the
bottom of the trailer hitch. Write
this number down.
Connect the f ully loaded trailer to
the hitch.
Measure again f rom the ground to
the same spot on the bottom of the
hitch.
Subtract the result f rom Step 4
f rom the result in Step 2 and ref er
to the chart (Fig. 1). If thedifferenceis:
1½ = 150 lbs (68 kg)
2¼ = 250 lbs (114 kg)3 = 350 lbs (159 kg)
3¾ = 450 lbs (204 kg) 4 = over 450 lbs (204 kg)
If thedifferenceismorethan4 ,
you have too much tongue load
at the rear. Move or remove
cargo f rom the trailer and the
vehicle, and measure again.
If the estimated total trailer weight
and tongue load do not exceed the
limits f or your towing situation (see
page ), caref ully drive your
trailer to a public scale. Be sure your
vehicle and trailer are f ully loaded,
with all occupants and cargo you
plan to take on the road.
1.
2.
3.
4.
5.
273
273
Estimating Loads
T ot al T railer Weight
Tongue Load
Fig. 1
Towing a Trailer
Driving274
’’
’’
’’
’’
’’ ’’

Thebestwaytoconfirmthatyour
vehicle and trailer loads are within
limits is to have them checked at a
public scale. The vehicle and trailer
should be f ully loaded, and all
occupants should stay in the vehicle.Check the f ront gross axle weight.
Limit: 2890 lbs (1310 kg)Check the gross vehicle weight.
Limit: 5730 lbs (2600 kg)
If you cannot weigh the rear axle
directly, calculate the rear gross
axle weight. Subtract the weight in
Step 1 f rom the weight in Step 2.
Limit: 2945 lbs (1335 kg)
1.
2.
3.
CONT INUED
Checking L oads
Towing a Trailer
Driving275

Check the gross combined weight. Check the weight of the hitchedtrailer. Write this number down.Check the weight of the unhitched
trailer. Limit: See page .
Calculate the tongue load.
Subtract the weight in Step 5 f rom
the weight in step 6.
Limit: See page .
Range: 5-10% f or boat trailers
8-15% f or other trailers
Gross combined weight should be
decreased 2% f or every 1000 f eet
(305 meters) of elevation.
4.
5.6.
7.
Limit:
273
273
Towing a Trailer
Driving276
9700 lbs (4410 kg)