2019 Acura MDX traction control

326
uuGeneral Information on the Audio System uHonda App License Agreement
Features
2. Potential Map Inaccuracy and Route Safety. Maps used by this system may be inaccurate because of changes in roads, traffic controls,
routing, or driving conditions. Always use good judgment and co mmon sense when following suggested routes. Do not follow the route
suggestions if doing so would result in an un safe or illegal driving maneuver, if you would be placed in an unsafe situation, o r if you would
be directed into an area that you consider unsafe. Do not rely on any navigation features included in the system to route you t o emergency
services. Not all emergency services such as police, fire stations, hospitals, or clin ics are likely to be contained in the map database for such
navigation features. Ask local authorities or an emergency services operator for such locations and routes. The driver is ultimately
responsible for the safe operation of the ve hicle and therefore, must evaluate whether it is safe to follow the suggested directions. Any
navigation features are provided only as an aid. Make your driving decisions based on your obser vations of local conditions and existing
traffic regulations. Navigation features are not a substitute for your personal judgmen t. Any route suggestions made by the SOFTWARE or
SERVICES should never replace any local traffic regulations or yo ur personal judgment or knowledge of safe driving practices.
3. Speech Recognition:
You acknowledge and understand that HONDA and PROVIDERS may reco rd, retain, and use voices commands
when you use the speech recognit ion components of the SOFTWARE or SERVICES. You and all VEHICLE operators and passengers (a)
consent to the recording and rete ntion of voice commands in support of providing speech recognition components and (b) release HONDA
and PROVIDERS from all claims, liabilities, an d losses that may result from any use of such recorded voice commands. Recognitio n errors
are inherent in speech recognition. It is your responsibility to monitor any speech recognition functions included in the syste m and address
any errors. Neither HONDA nor PROVIDERS will be liable for any damages arising out of errors in the speech recognition process.
4. Distraction Hazards.
Navigation features may require manua l (non-verbal) input or setup. Attempting to perform such set-up or insert
data while driving can seriously distract your attention and could cause a crash or other serious consequences; the ability to undertake such
interactions may also be limited by state or local law, which la ws you are responsible to know and follow. Even occasional shor t scans of
the screen may be hazardous if your attention has been diverted away from your driving at a critical time. Pull over and stop the vehicle in
a safe and legal manner before attempting to access a function of the system requiring prolonged attention. Do not raise the vo lume
excessively. Keep the volume at a level wh ere you can still hear outside traffic and em ergency signals while driving. Driving while unable
to hear these sounds could result in a crash.
19 ACURA MDX-31TZ56510.book 326 ページ ２０１８年１２月１１日　火曜日　午後４時４７分

382
uuCustomized Features u
Features
*1:Default SettingSetup
Group Customizable Features Desc
ription Selectable Settings
System
Settings OthersUnits
*Changes the distance unit on the navigation map
screen.
mile*1/
km (U.S.)
mile /km*1 (Canada)
Language Changes the display language. English
*1/
Français /
Español
Operation Restriction
Tips
*
Alerts you when manual control of the system is
disabled to prevent distraction while driving. Only
voice commands are available. On*1/
Off
Header Clock Display Selects whether the clock display comes on. On
*1/Off
System Device
Information
*Displays the system/device information. —
Factory Data Reset Resets all the settings to their factory default.
2
Defaulting All the Settings P. 391—
Smartphone
Settings
DefaultCancels/Resets all customized items in the
Smartphone Settings group as default.Yes/No
Apple CarPlay Device ListSets up the Apple CarPlay connection.—
Android Auto Device ListSets up the Android Auto connection.—
Smartphone VolumeAdjusts the volume of the smartphone function.1 ~8*1~11
VersionShows software version of Apple CarPlay and
Android Auto unit.—
* Not available on all models
19 ACURA MDX-31TZ56510.book 382 ページ ２０１８年１２月１１日　火曜日　午後４時４７分

456
uuTowing a Trailer uTowing Preparation
Driving
■To estimate the tongue load
Excessive tongue load reduces front tire traction and steering control. Too little
tongue load can make the trailer unstable and cause it to sway.
You can estimate the tongue load by meas uring the trailer hitch height from the
ground in the following steps:
1. Park the vehicle on level ground.
2. Measure the distance between the ground and the bottom of the trailer hitch.
3. Connect the fully loaded trailer to the hitch.
4. Measure the distance between the ground and the bottom of the trailer hitch
again.
5. Subtract the second measurement from th e first measurement, then refer to the
following table.
If the difference becomes more than indicated in the table, distribute the load or
remove cargo as needed.
If the difference isAWD models2WD models
1 inches (2.5 cm)150 lbs (68 kg)
1 1/2 inches (3.8 cm)250 lbs (114 kg)
2 inches (5.1 cm)350 lbs (159 kg)
2 3/8 inches (6.0 cm)450 lbs (205 kg)—
2 5/8 inches (6.7 cm)500 lbs (227 kg)—
19 ACURA MDX-31TZ56510.book 456 ページ ２０１８年１２月１１日　火曜日　午後４時４７分

466
uuOff-Highway Driving Guidelines uAvoiding Trouble
Driving
Avoiding Trouble
• Check Out Your Vehicle before you leave the pavement and make sure that all
scheduled maintenance has been comple ted. Pay special attention to the
condition of the tires, an d check the tire pressures.
• Remember the route you choose presents limit s (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 up or down a slope is usually
the safest. If you can’t clearly see all cond itions 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.
• Crossing a Stream - Avoid driving through deep water. If you encounter water
in your route (a small stream or large pu ddle, for example), evaluate it carefully
before going ahead. Make sure it is shallow, flowing slowly, and has firm ground
underneath. If you are not sure of the depth or the ground, turn around and find
another route. Driving through deep water can also damage your vehicle. The
water can get into the transmission and differential, diluting the lubricant and
causing an eventual failure. It can also wash the grease out of the wheel bearings.
• If You Get Stuck , carefully go in the direction that you think will get you
unstuck. Do not spin the tires as this will only make things worse and could
damage the transmission. If you are unable to free yourself, your vehicle will need
to be towed. Front and rear tow hooks are provided for this purpose.
19 ACURA MDX-31TZ56510.book 466 ページ ２０１８年１２月１１日　火曜日　午後４時４７分

520
uuWhen Driving uVehicle Stability Assist ® (VSA ®), aka Electronic Stability Control (ESC), System
Driving
Vehicle Stability Assist ® (VSA ®), aka Electronic
Stability Control (ESC), System
VSA ® 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
1 Vehicle Stability Assist ® (VSA ®), aka Electronic Stability Control
(ESC), System
The VSA ® may not function properl y 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 ® system 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 vehi cle 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 Stab ility Control (ESC). The
system also includes a traction control function.
VSA® System
Indicator
19 ACURA MDX-31TZ56510.book 520 ページ ２０１８年１２月１１日　火曜日　午後４時４７分

521
uuWhen Driving uVehicle Stability Assist ® (VSA ®), aka Electronic Stability Control (ESC), System
Driving
This button is on the driver side control panel.
To partially disable VSA ® functionality/
features, press and hold it until you hear a
beep.
Your vehicle will have normal braking and
cornering ability, but tra ction control function
will be less effective.
To restore VSA ® functionality/features, 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 Off1 Vehicle Stability Assist ® (VSA ®), aka Electronic Stability Control
(ESC), System
In certain unusual conditions when your vehicle gets
stuck in shallow mud or fr esh snow, it may be easier
to free it with the VSA ® temporarily switched off.
When the button is pressed, the traction control
function becomes less effective. This allows for the
wheels to spin more freely at low speed. 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 ® system switched off.
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
19 ACURA MDX-31TZ56510.book 521 ページ ２０１８年１２月１１日　火曜日　午後４時４７分

607
uuChecking and Maintaining Tires uDOT Tire Quality Grading (U.S. Vehicles)
Continued
Maintenance
DOT Tire Quality Grading (U.S. Vehicles)
The tires on your vehicle m eet 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 th e 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 un der 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 co nditions of their use, however,
and may depart significantly from the norm due to variations in
driving habits, service practi ces and differences in road
characteristics and climate.
■Uniform Tire Quality Grading
■Treadwear
1 Uniform Tire Quality Grading
For example:
Treadwear 200
Traction AA
Temperature A
All passenger car tires must conform
to Federal Safety Requirements in
addition to these grades.
19 ACURA MDX-31TZ56510.book 607 ページ ２０１８年１２月１１日　火曜日　午後４時４７分

uuChecking and Maintaining Tires uDOT Tire Quality Grading (U.S. Vehicles)
608
Maintenance
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 h eat 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 temp erature 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
1 Traction
Warning: 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.
1Temperature
Warning: The temperature grade for
this tire is establishe d 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.
19 ACURA MDX-31TZ56510.book 608 ページ ２０１８年１２月１１日　火曜日　午後４時４７分