2015 Acura MDX light

Continued
315
uuTowing a Trailer uTowing Preparation
Driving
Towing generally requires a variety of supplemental equipment.
To ensure the best quality, we recommend that you purchase Acura equipment
whenever possible.■
Towing Equipment and Accessories
1Towing Equipment and Accessories
Make sure that all equipment is properly installed and
maintained, and that it meets federal, state, province/
territory, and local regulations.
Consult your trailer make r for proper installation and
setup of the equipment.
Improper installation and setup can affect the
handling, stability, and braking performance of your
vehicle.
Consult your trailer sales or rental agency if any other
items are recommended or required for your towing
situation.
The lighting and wiring of trailers can vary by type
and brand. If a connector is required, it should only
be installed by a qualified technician.
Trailer packages and products:•Ball mount, hitch plug, hitch pin etc.•Wiring harness kit•Trailer hitch kit (jumper harness included) 2Trailer brakes P. 316•Automatic transmission cooler kit
2Automatic transmission cooler P. 318
Are available at a dealer.

uuTowing a Trailer uTowing Preparation
316Driving
■Trailer brakes
Recommended for any trailer with a total weight of 1,000 lbs (450 kg) or more:
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 attach trailer brakes to your vehicle’s hydraulic system, as it will lower
braking effectiveness and create a potential hazard.
The 4-pin gray connector installed in your vehicle has all of the circuits required to
install most electric trailer brake controllers.
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.
1Trailer brakes
The 4-pin gray connector is located under the
instrument panel near the top of the parking brake
pedal.
Electric Brake
(Light Green) (20A)
Ground
(Brown) Brake
(Green)
Stop
(Violet)
Trailer brake controller
connector’s terminals:

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317
uuTowing a Trailer uTowing Preparation
Driving
■Trailer light
Trailer lights and equipment must comply with federal, state, province/territory, and
local regulations. Check with your local traile r sales or rental agency for the
requirements in the area where you plan to tow.
We recommend that you have a dealer install a Acura wiring harness and converter.
They are designed for your vehicle.
1 Trailer light
The trailer lighting connector is located behind the
left side panel in the cargo area.
Even if you are planning to use the non-Acura trailer
lighting harness and converter, ask a dealer for the
correct connector and pins.
+B Trailer Charge
+B Trailer Hazard Light +B Trailer Hazard Light +B Trailer Back Light
Back Light +B ELEC Brake
Right Turn Signal
Stop Light
Pins’ wiring color codes and their purposes:
+B Trailer Small IG2 HAC
Left Turn Signal

319
uuTowing a Trailer uTrailer Stability Assist
*
Driving
Trailer Stability Assist
*
Helps to stabilize the vehicle and trailer when the trailer severely sways.■How trailer stability assist works
When the vehicle and trailer become unstable while driving, trailer stability assist
determines the cause. If the trailer oscillation is detected as the cause, and the
swaying increases, the system applies the brakes or controls engine output to reduce
vehicle speed.
Both the vehicle and trailer brake lights come on automatically if you brake to
reduce vehicle speed.
1 Trailer Stability Assist
*
Trailer stability assist is not a function that prevents
the vehicle and trai ler from swaying. Avoid high
speeds, abrupt steering, improper trailer load, and
sudden braking to keep the trailer from swaying.
When swayed too severely, the system becomes
ineffective, and you may loose control of your
vehicle, causing the trailer to roll over or get
damaged. 2 Driving Safely with a Trailer P. 320
Trailer towing sway is caused by:•Crosswinds•Improper towbar down load•Excessive Speed
The VSA ® system indicator blinks during the trailer
stability assist operation.
2 VSA ® Operation P. 362
* Not available on all models

320
uuTowing a Trailer uDriving Safely with a Trailer
Driving
Driving Safely with a Trailer• Have the trailer properly serviced an d keep it in good condition.
• Make sure that all the weights and load in the vehicle and trailer are within limits.
2 Towing Load Limits P. 311
•When towing more than 3,500 lbs (1,590 kg), use of gasoline with a pump
octane number of 91 or higher is recommended.
u Towing performance can be affected by high altitude, high temperature, or
steep uphill.
• Securely attach the hitch, safety chains, and other necessary parts to the trailer.
• Securely store all the items in and on the trailer so that they do not shift while
driving.
• Check if the lights and brakes on the trailer are working properly.
• Check the pressures of the trailer tires, including the spare.
• Drive slower than normal.
• Obey posted speed limits for vehicles with trailers.
• Use the
(D
position when towing a trailer on level roads.
• Turn more slowly and with a wider turning arc than normal.
• Allow more time and distance for braking.
• Do not brake or turn suddenly.
■
Things You Need To Know Before Towing a Trailer
■
Towing Speeds and Gears
■
Turning and Braking
1Driving Safely with a Trailer
Parking
In addition to the normal precautions, place wheel
chocks at each of the trailer’s tires.1Towing Speeds and Gears
When towing a fixed-sided trailer (e.g., camper), do
not exceed 55 mph (88 km/h).
At higher speeds, the trailer ma y sway or affect
vehicle handling.

324Driving
When DrivingStarting the Engine
1.Make sure the parking brake is applied.
2. Check that the shift lever is in
(P
, then
depress the brake pedal.
u Although it is possible to start the vehicle
in
(N
, it is safer to start it in
(P
.
3. Press the ENGINE START/STOP button
without depressing the accelerator pedal.
The engine will crank until it starts.
1 Starting the Engine
Keep your foot firmly on the brake pedal when
starting the engine.
The engine is harder to start in cold weather and in
thinner air found at altitudes above 8,000 feet (2,400
meters).When starting the engine in cold weather, turn off all
electrical accessories such as the lights, climate control
system, and rear defogger in order to reduce battery drain.If you live in a region where winter is extremely cold,
an engine block heater will improve starting and
warming of the engine. If temperatures consistently
below -22°F (-30°C) are expected, the coolant
mixture should be changed to a higher concentration
to prevent freezing. Consult a dealer for details.
If the exhaust system sounds abnormal or you can
smell exhaust gas inside the vehicle, have your vehicle
checked by a dealer. There may be a problem with
the engine or exhaust system.
Bring the keyless access remote close to the ENGINE
START/STOP button if the battery in the keyless
access remote is weak. 2 If the Keyless Access Remote Battery is
Weak P. 463
The engine may not start if the keyless access remote
is subjected to strong radio waves.
Do not hold the ENGINE START/STOP button to
start the engine.
If the engine does not start, wait at least 10 seconds
before trying again.
Brake Pedal

331
uuWhen Driving uShifting
Continued
Driving
ShiftingChange the shift position in accordance with your driving needs.■Shift lever positions
1Shifting
You cannot change the power mode from ON to
VEHICLE OFF (LOCK) unless the shift lever is in
(P.
The vehicle may move forward very slightly even in
( N while the engine is cold.
Depress the brake pedal firmly and, when necessary,
apply the parking brake.
When shifting gears in extremely low temperatures
(-22°F/-30°C), there may be a short delay before the
shift indicated in the display. Always confirm you are
in the correct ge ar before driving.
Park
Used when parking or starting the
engine
Reverse
Used when reversing
Neutral
Used when idling
Drive
Used:●For normal driving (gears change
between 1st and 6th automatically)●When temporarily driving in the
sequential mode
Drive (S)
Used for:●Automatically changing gears
between 1st and 5th (5th gear is
used only at high speed)●Driving in the sequential mode
Release Button

uuWhen Driving uShifting
332Driving
■
Shift Lever Operation
1Shift Lever OperationNOTICEWhen you change the shift lever from
(D to
(R and
vice versa, come to a complete stop and keep the
brake pedal depressed.
Operating the shift lever before the vehicle has come
to a complete standstill can damage the transmission.
Use the shift lever posit ion indicator to check the
lever position before pulling away.
Whichever position the shift lever is in when driving,
a blinking transmission indicator indicates a
transmission problem.
Avoid sudden acceleration and have the transmission
checked by a dealer as soon as possible.
The fuel supply may be cut off if you drive at engine
speeds in or over the tachometer’s red zone (engine
speed limit). If this happens, you may experience a
slight jolt.
It may not be possible to operate the shift lever if the
brake pedal is applied while the shift lever release
button is held down.
Depress the brake pedal first.
Tachometer’s red zone
Shift Lever Position Indicator
Depress the brake pedal and press
the shift lever release button to shift.
Shift without pressing the shift lever
release button.
Press the shift lever release button
and shift.M (Sequential Shift mode) Indicator/
Gear Position Indicator