2013 Acura ZDX traction control

13Quick Reference Guide
VSA® OFF Button
(P203)
●The vehicle stability assist (VSA®) system
helps stabilize the vehicle during
cornering, and helps maintain traction
while accelerating on loose or slippery
road surfaces.
●VSA® comes on automatically every time
you start the engine.
●To turn VSA® on or off, press and hold
the button until you hear a beep.
Cruise Control
(P193)
●Cruise control allows you to maintain a
set speed without keeping your foot on
the accelerator pedal.
●To use cruise control, press the CRUISE
button, then press DECEL/SET button
once you have achieved the desired speed
(above 25 mph or 40 km/h).
Tire Pressure Monitoring
System (TPMS)
(P208)
●TPMS monitors tire pressure.
●TPMS is turned on automatically every
time you start the engine.
Refueling
(P221)
Fuel recommendation: Premium unleaded gasoline with a pump octane number
91 or higher required
Fuel tank capacity:
21.0 US gal (79.5 L)
a
Unlock the driver’s door.
b
Press on the edge of the
fuel fill door to make it
pop up slightly.
c
Turn the fuel fill cap
slowly to remove the
cap.
d
Place the cap in the
holder on the fuel fill
door.
e
After refueling, screw
the cap back on until it
clicks at least once.

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Continued
Driving
Towing a TrailerTowing PreparationYour vehicle can tow a trailer if you carefully observe the load limits, use the proper
equipment, and follow the towing guidelines. Check the load limits before driving.
■Total trailer weight
Maximum allowable weight of the trailer,
cargo, and everything in or on it must not
exceed 1,500 lbs (680 kg). Towing loads in
excess of this can seriously affect vehicle
handling and performance and can damage
the engine and drivetrain.■Tongue load
The weight of the tongue with a fully loaded
trailer on the hitch should be approximately
10% of the total trailer weight.
•Excessive tongue load reduces front tire
traction and steering control. Too little
tongue load can make the trailer unstable
and cause it to sway.
•To achieve a proper tongue load, start by
loading 60% of the load toward the front
of the trailer and 40% toward the rear.
Readjust the load as needed.
■Towing Load Limits
1Towing Load Limits
Check if all loads are within limits at a public scale.
If a public scale is not available, add the estimated
weight of your cargo load to the weight of your
trailer (as quoted by the manufacturer), and the
tongue load.
Break-in Period
Avoid towing a trailer during your vehicle’s first 600
miles (1,000 km).
Never exceed the gross weight ratings.
Gross weight information
2Vehicle Specifications P. 306
3
WARNING
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 before starting to drive.
Total LoadTongue LoadTongue Load

183
uuOff-Highway Driving GuidelinesuAvoiding Trouble
Continued
Driving
Avoiding Trouble•Check Out Your Vehicle before you leave the pavement and make sure that all
scheduled maintenance has been completed. Pay special attention to the
condition of the tires, and check the tire pressures.
•Remember the route you choose presents limits (too steep or bumpy), you have
limits (driving skill and comfort), and your vehicle has limits (traction, stability, and
power). Failing to recognize these limits will likely put you and your passengers in
a hazardous situation.
•Accelerating and Braking should be done slowly and gradually. Trying to start
or stop too fast can cause a loss of traction and you could lose control.
•Avoiding Obstacles and Debris in the road reduces the likelihood of a rollover
or damage to your suspension or other components.
•Driving on Slopes increases your risk of a rollover, particularly if you attempt to
drive across a slope that is too steep. Going straight or down a slope is usually the
safest. If you can’t clearly see all conditions or obstacles on a slope, walk it before
you drive it. If there is any doubt whether you can safely pass, don’t try it. Find
another route. If you get stuck when climbing, do not try to turn around. Back
down slowly following the same route you took up the hill.

202
uuWhen DrivinguVSA® (Vehicle Stability Assist), aka ESC (Electronic Stability Control), System
Driving
VSA® (Vehicle Stability Assist), aka ESC (Electronic Stability Control), SystemVSA® helps to stabilize the vehicle during cornering if the vehicle turns more or less
than what was intended. It also assists in maintaining traction on slippery surfaces.
It does so by regulating engine output and selectively applying the brakes.
When VSA® activates, you may notice that the
engine does not respond to the accelerator.
You may also notice some noise from the
hydraulic system. You will also see the
indicator blink.■VSA® Operation
1VSA® (Vehicle Stability Assist), aka ESC (Electronic Stability Control), System
The VSA® may not function properly if tire type and
size are mixed. Make sure to use the same size and
type of tire, and the air pressures as specified.
When the VSA® indicator comes on and stays on
while driving, there may be a problem with the
system. While this may not interfere with normal
driving, have your vehicle checked by a dealer
immediately.
VSA® cannot enhance stability in all driving situations
and does not control the entire braking system. You
still need to drive and corner at speeds appropriate
for the conditions and always leave a sufficient
margin of safety.
The main function of the VSA® system is generally
known as Electronic Stability Control (ESC). The
system also includes a traction control function.
VSA® System Indicator

203
uuWhen DrivinguVSA® (Vehicle Stability Assist), aka ESC (Electronic Stability Control), System
Driving
This button is on the driver side control panel.
To turn the VSA® system on and off, press and
hold it until you hear a beep.
VSA® will stop and the indicator will come on.
To turn it on again, press the (VSA® OFF)
button until you hear a beep.
VSA® is turned on every time you start the
engine, even if you turned it off the last time
you drove the vehicle.
■VSA® On and Off
1VSA® (Vehicle Stability Assist), aka ESC (Electronic Stability Control), System
Without VSA®, your vehicle will have normal braking
and cornering ability, but it will not have VSA®
traction and stability enhancement.
In certain unusual conditions when your vehicle gets
stuck in shallow mud or fresh snow, it may be easier
to free it with the VSA® temporarily switched off.
When the VSA® system is off, the traction control
system is also off. You should only attempt to free
your vehicle with the VSA® off if you are not able to
free it when the VSA® is on.
Immediately after freeing your vehicle, be sure to
switch VSA® on again. We do not recommend driving
your vehicle with the VSA® and traction control
systems switched off.
If the low tire pressure/TPMS indicator comes on or
blinks, the VSA® system comes on automatically. In
this case, you cannot turn the system off by pressing
the button.
You may hear a motor sound coming from the
engine compartment while system checks are being
performed immediately after starting the engine or
while driving. This is normal.
VSA® OFF Indicator

261
uuChecking and Maintaining TiresuDOT Tire Quality Grading (U.S. Vehicles)
Continued
Maintenance
DOT Tire Quality Grading (U.S. Vehicles)The tires on your vehicle meet all U.S. Federal Safety
Requirements. All tires are also graded for treadwear, traction,
and temperature performance according to Department of
Transportation (DOT) standards. The following explains these
gradings.
Quality grades can be found where applicable on the tire sidewall
between tread shoulder and maximum section width.
The treadwear grade is a comparative rating based on the wear
rate of the tire when tested under controlled conditions on a
specified government test course. For example, a tire graded 150
would wear one and one-half (1 1/2) times as well on the
government course as a tire graded 100. The relative performance
of tires depends upon the actual conditions of their use, however,
and may depart significantly from the norm due to variations in
driving habits, service practices and differences in road
characteristics and climate.■Uniform Tire Quality Grading■Treadwear
1Uniform Tire Quality GradingFor example:
Treadwear 200
Traction AA
Temperature A
All passenger car tires must conform
to Federal Safety Requirements in
addition to these grades.

uuChecking and Maintaining TiresuDOT Tire Quality Grading (U.S. Vehicles)
262Maintenance
The traction grades, from highest to lowest, are AA, A, B, and C.
Those grades represent the tire’s ability to stop on wet pavement
as measured under controlled conditions on specified
government test surfaces of asphalt and concrete. A tire marked
C may have poor traction performance.
The temperature grades are A (the highest), B, and C,
representing the tire’s resistance to the generation of heat and its
ability to dissipate heat when tested under controlled conditions
on a specified indoor laboratory test wheel. Sustained high
temperature can cause the material of the tire to degenerate and
reduce tire life, and excessive temperature can lead to sudden tire
failure. The grade C corresponds to a level of performance which
all passenger car tires must meet under the Federal Motor Vehicle
Safety Standard No. 109. Grades B and A represent higher levels
of performance on the laboratory test wheel than the minimum
required by law.■Traction■Temperature
1TractionWarning: The traction grade
assigned to this tire is based on
straight-ahead braking traction tests,
and does not include acceleration,
cornering, hydroplaning, or peak
traction characteristics.1TemperatureWarning: The temperature grade for
this tire is established for a tire that is
properly inflated and not
overloaded. Excessive speed,
underinflation, or excessive loading,
either separately or in combination,
can cause heat buildup and possible
tire failure.