trailer Acura MDX 2018 User Guide

Continued455
uuTowing a Trailer uTowing Preparation
Driving
■How to weigh the trailer load s using the public scale
Check each weight in the order indicated as shown.
Refer to the table on the right for each we ight’s limit except for the tongue load.
2Tongue load P. 453
•If you cannot weigh the rear axle, subtract 1 from 2.
• The maximum gross combined weight (4) decreases by 2% for every 1,000 feet
(305 meters) of elevation.
• To calculate the tongue load, subtract 5 from 6.
• Refer to the trailer owner’s ma nual for additional information.
1How to weigh the trailer loads using the public scale
Fully load the vehicle and trailer. An attendant who
watches the scale is needed as all occupants should
stay in the vehicle.
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 then
measure the tongue load with an appropriate scale or
tongue gauge or estima te it based on cargo
distribution. Weight limit for 2WD models AWD models
Front gross axle2,811 lbs
(1,275 kg)2,910 lbs
(1,320 kg)
Gross vehicle 5,368 lbs
(2,435 kg) 5,677 lbs
(2,575 kg)
Rear gross axle2,734 lbs
(1,240 kg)2,965 lbs
(1,345 kg)
Gross combined 8,036 lbs
(3,645 kg) 9,833 lbs
(4,460 kg)
1. Front gross axle weight.
2. Gross vehicle weight.4. Gross combined weight.
3. Rear gross axle weight. 5. Hitched trailer weight.
6. Unhitched trailer weight.
18 ACURA MDX-31TZ56400.book 455 ページ ２０１７年８月２３日　水曜日　午後４時１分

uuTowing a Trailer uTowing Preparation
456
Driving
Towing generally requires a variety of supplemental equipment.
To ensure the best quality, we recomme nd that you purchase Acura equipment
whenever possible.
■Towing Equipment and Accessories1 Towing Equipment and Accessories
Make sure that all equipment is properly installed and
maintained, and that it meets federal, state, province/
territory, and lo cal regulations.
Consult your trai ler maker for prope r installation and
setup of the equipment.
Improper installation and setup can affect the
handling, stability, and br aking performance of your
vehicle.
Consult your traile r sales or rental agency if any other
items are recommended or required for your towing
situation.
The lighting and wiring of tra ilers can vary by type
and brand. If a connector is required, it should only
be installed by a qua lified technician.
Trailer packages and products:
•Ball mount, hitch plug, hitch pin etc.•Wiring harness kit
•Trailer hitch kit (jum per harness included)
2 Trailer brakes P. 457
Are available at a dealer.
18 ACURA MDX-31TZ56400.book 456 ページ ２０１７年８月２３日　水曜日　午後４時１分

Continued457
uuTowing a Trailer uTowing Preparation
Driving
■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 bra kes: surge and electric. Surge brakes are
common for boat trailers, since the brakes will get wet.
If you choose electric brakes, be sure th ey are electronically actuated. Do not
attempt to attach trailer brakes to your ve hicle’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 left
side instrument panel.
Electric Brake
(Light Green) (20A)
Ground
(Brown) Brake
(Green)
Stop
(Violet)
Trailer brake controller
connector’s terminals:
18 ACURA MDX-31TZ56400.book 457 ページ ２０１７年８月２３日　水曜日　午後４時１分

uuTowing a Trailer uTowing Preparation
458
Driving
■Trailer light
Trailer lights and equipment must comply with federal, state, province/territory, and
local regulations. Check with your local trailer sales or rental agency for the
requirements in the area where you plan to tow.
We recommend that you have a dealer instal l a Acura wiring harness and converter.
They are designed for your vehicle.
■Hitches
Read the trailer manufacturer’s instructions , and select the appropriate draw bar for
the height of the trailer you will be towing.
■Weight distribution hitches
Your vehicle is designed to tow without the need for a load distributing hitch. If you
wish to use one, please consult your trailer maker for proper installation and set-up.
Improper set-up could degrade the handling , stability, and braking performance of
your vehicle.
1 Trailer light
The trailer lighting connect or 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 converte r, 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
18 ACURA MDX-31TZ56400.book 458 ページ ２０１７年８月２３日　水曜日　午後４時１分

459
uuTowing a Trailer uTowing Preparation
Driving
■Safety chains
Always use safety chains when you tow a trailer. Leave enough slack to allow the
trailer to turn corners easily, but do not allow the chains to drag on the ground.
■Sway control
This device can be used if your trailer te nds to sway. Your trailer maker can tell you
what kind of sway control you need and how to install it. Improper installation could
degrade the handling and stability of your vehicle.
■Trailer mirrors
Many states, provinces and territories requir e special exterior mirrors when towing a
trailer. Install special mirrors whenever you cannot clearly see behind you, or if the
trailer creates a blind spot.
■Automatic transmission cooler*
An additional ATF (automatic transmission fluid) cooler is required to keep the
transmission from overheating when towing more than 3,500 lbs (1,588 kg). You
can get the additional ATF cooler at a dealer.
AWD models
* Not available on all models
18 ACURA MDX-31TZ56400.book 459 ページ ２０１７年８月２３日　水曜日　午後４時１分

460
uuTowing a Trailer uTrailer Stability Assist
Driving
Trailer Stability Assist
Helps to stabilize the vehicle and tra iler when the trailer severely sways.
■How trailer stability assist works
When the vehicle and trailer become unstab le while driving, trailer stability assist
determines the cause. If the trailer oscill ation is detected as the cause, and the
swaying increases, the system applies the brak es 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 trailer 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 lose control of your vehicle,
causing the trailer to roll over or get damaged. 2 Driving Safely with a Trailer P. 461
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. 517
18 ACURA MDX-31TZ56400.book 460 ページ ２０１７年８月２３日　水曜日　午後４時１分

461
uuTowing a Trailer uDriving Safely with a Trailer
Continued
Driving
Driving Safely with a Trailer
• Have the trailer properly servic ed and keep it in good condition.
• Make sure that all the weights and load in the vehicle and trailer are within limits.
2Towing Load Limits P. 452
•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 tra iler 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 traile r tires, including the spare.
• Turn off Auto Idle Stop sy stem using Auto Idle Stop OFF button. The trailer
weight can affect your vehicle’s brake effectiveness if Auto Idle Stop is activated
on a hill while towing a trailer.
• Drive slower than normal.
• Obey posted speed limits fo r vehicles with trailers.
• Use the
(D position when towing a trailer on level roads.
■Things You Need To Know Before Towing a Trailer
■Towing Speeds and Gears
1Driving Safely with a Trailer
Parking
In addition to the normal precautions, place wheel
chocks at each of the trailer’s tires.
Models with Auto Idle Stop
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 trai ler may sway or affect
vehicle handling.
18 ACURA MDX-31TZ56400.book 461 ページ ２０１７年８月２３日　水曜日　午後４時１分

462
uuTowing a Trailer uTowing Your Vehicle
Driving
• Turn more slowly and with a wider turning arc than normal.
• Allow more time and distance for braking.
• Do not brake or turn suddenly.
• Monitor your temperature gauge. If it nears the red (Hot) mark, turn off the
climate control system and reduce speed. Pull to the side of the road safely to cool
down the engine if necessary.
• Change the gear position to
(S position if the transmission shifts frequently.
If the vehicle tires slip when retrieving a boat from the water, keep the transmission
in
(D and do not use the sequential shift mode in (S. This prevents damage to the
transmission.
Towing Your Vehicle
Your vehicle is not designed to be towed behind a motor home. If your vehicle needs
to be towed in an emergency, refe r to the emergency towing information.
2Emergency Towing P. 666
■Turning and Braking
■Driving in Hilly Terrain
■Retrieving a Boat
18 ACURA MDX-31TZ56400.book 462 ページ ２０１７年８月２３日　水曜日　午後４時１分

Continued501
uuWhen Driving uAdaptive Cruise Control (ACC) with Low Speed Follow (LSF)
Driving
■Automatic ca ncellation
The beeper sounds and a message appear s on the MID when ACC with LSF is
automatically canceled. Any of these co nditions may cause the ACC with LSF to
automatically cancel:
• Bad weather (rain, fog, snow, etc.)
• When the radar sensor in the front grille gets dirty.
• The vehicle ahead of yo u cannot be detected.
• An abnormal tire condition is de tected, or the tires are skidding.
• Driving on a mountainous road, or driving off road for extended periods.
• Abrupt steering wheel movement.
• When the ABS, VSA ® or CMBS
TM is activated.
• When the ABS or VSA ® system indicator comes on.
• When the vehicle is stopped on a very steep slope.
• When you manually apply the parking brake.
• When the detected vehicle within the AC C with LSF range is too close to your
vehicle.
• When a detected vehicle goes out of the ACC with LSF range while your vehicle
is stationary.
• The camera behind the rearview mirror, or the area around the camera, including
the windshield, gets dirty.
The ACC with LSF automatic cancellation ca n be also triggered by the following
causes. In these cases, th e electric parking brake will be automatically applied.
• The driver’s seat belt is unfastened when the vehicle is stationary.
• The vehicle stops for more than 10 minutes.
• The engine is turned off.
• When trailer stability assist is activated.
2 Trailer Stability Assist P. 460
1Automatic cancellation
Even though ACC with LSF has been automatically
canceled, you can still resu me the prior set speed.
Wait until the condition that caused ACC with LSF to
cancel improves, then press the RES/+/SET/– switch
up.
18 ACURA MDX-31TZ56400.book 501 ページ ２０１７年８月２３日　水曜日　午後４時１分

Continued521
uuWhen Driving uBlind spot information (BSI) System*
Driving
■When the system detects a vehicle
BSI Alert Indicator: Located near the outside
rearview mirror on both sides.
Comes on when:
•A vehicle enters the alert zone from behind
to overtake you with a speed difference of
no more than 31 mph (50 km/h) from your
vehicle.
• You pass a vehicle with a speed difference
of no more than 12 mph (20 km/h).
Blinks and the beeper sounds when:
You move the turn signal lever in the direction
of the detected vehicle. The beeper sounds
three times.1 Blind spot inform ation (BSI) System*
The system is for your convenience only. Even if an
object is within the alert zone, the following
situations may occur.
•The BSI alert indicator may not come on due to
obstruction (splashes, et c.) even without the Blind
Spot Info Not Available MID appearing.
•The BSI alert indicator may come on even with the
message appearing.
You can turn off the audible alert, or all the BSI alert
using the information screen or MID.
2 Customized Features P. 126, 358
Turn the system off when towing a trailer.
The system may not work properly for the following
reasons:
•The added mass tilts the vehicle and changes the
radar coverage.
•The trailer itself can be detected by the radar
sensors, causing the BSI al ert indicators to come
on.
The system does not operate when in
( R.
Comes On
Blinks
* Not available on all models
18 ACURA MDX-31TZ56400.book 521 ページ ２０１７年８月２３日　水曜日　午後４時１分