2015 Acura MDX engine

306Driving
Before DrivingDriving PreparationCheck the following items before you start driving.
•Make sure there are no obstructions on the windows, door mirrors, exterior
lights, or other parts of the vehicle.
u Remove any frost, snow, or ice.
u Remove any snow on the roof, as this can slip down and obstruct your field of
vision while driving. If frozen solid, remove ice once it has softened.
u When removing ice from around the wheels, be sure not to damage the wheel
or wheel components.
• Make sure the hood is securely closed.
u If the hood opens while driving, your front view will be blocked.
• Make sure the tires are in good condition.
u Check air pressure, check for damage and excessive wear.
2 Checking and Maintaining Tires P. 421
•Make sure there are no people or objects behind or around the vehicle.
u There are blind spots from the inside.■
Exterior Checks
1Exterior ChecksNOTICEWhen doors are frozen shut, use warm water around
the door edges to melt any ice. Do not try to force
them open, as this can damage the rubber trim
around the doors. When done, wipe dry to avoid
further freezing.
Do not pour warm water into the key cylinder.
You will be unable to insert the key if the water
freezes in the hole.
Heat from the engine and exhaust can ignite
flammable materials left under the hood, causing a
fire. If you’ve parked your vehicle for an extended
period, inspect and remove any debris that may have
collected, such as dried grass and leaves that have
fallen or have been carried in for use as a nest by a
small animal.
Also check under the hood for leftover flammable
materials after you or someone else has performed
maintenance on your vehicle.

311
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
Do not exceed the maximum allowable
weight of the trailer, cargo, and everything in
or on it shown in the table.
Towing loads in excess of this can seriously
affect vehicle handling and performance and
can damage the engine and drivetrain.
Each weight limit is calculated based on the following conditions:
• Occupants fill seats from the front of the vehicle to the back
• Each occupant weights 150 lbs (68 kg)
• Each occupant has 15 lbs (7 kg) of cargo in the cargo area
Any additional weight, cargo or accessories reduce the maximum trailer weight and
maximum tongue load.
■
Towing Load Limits
1 Towing 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 then
measure the tongue load with an appropriate scale or
tongue gauge or estimate it based on cargo
distribution.
Refer to the trailer owner’s manual fo r additional
information.
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
2 Vehicle Specifications P. 484
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 Load
Number of occupants
4WD models with ATF cooler
4WD models
without ATF cooler
2WD models
2
5,000 lbs (2,268 kg)
3,500 lbs (1,588 kg)
3,500 lbs (1,588 kg)
3
4,750 lbs (2,155 kg)
3,250 lbs (1,474 kg)
3,250 lbs (1,474 kg)
4
4,500 lbs (2,041 kg)
3,000 lbs (1,361 kg)
3,000 lbs (1,361 kg)
5
4,250 lbs (1,928 kg)
2,750 lbs (1,247 kg)
2,750 lbs (1,247 kg)
6
4,000 lbs (1,814 kg)
2,500 lbs (1,134 kg)
2,500 lbs (1,134 kg)
7
Towing not recommended

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

321
uuTowing a Trailer uTowing Your Vehicle
Driving
• 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.
• Shift to the
(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 VehicleYour vehicle is not designed to be towed behind a motor home. If your vehicle needs
to be towed in an emergency, refer to the emergency towing information.2 Emergency Towing P. 480■
Driving in Hilly Terrain
■
Retrieving a Boat

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

Continued
325
uuWhen Driving uStarting the Engine
Driving
You can turn the engine off when the vehicle is completely stopped.
1. Shift to
(P
.
2. Press the ENGINE START/STOP button with your foot on the brake pedal.
■
Stopping the Engine
1Starting the Engine
The immobilizer system protects your vehicle from
theft.
If an improperly coded device is used, the engine’s
fuel system is disabled.
2 Immobilizer System P. 135

uuWhen Driving uStarting the Engine
326Driving
You can remotely start the engine using the two-way keyless access remote from
distances up to 328 feet (100 meters) from the vehicle.■To start the engine
The engine runs for up to 10 minutes without you starting the vehicle.
To extend the run time for another 10 minutes during the first run, press the
button, then press and hold the button. u The amber LED blinks, then the green LED comes back on if a 10-minute
extension request was transmitted successfully.
After pressing the (lock) button, wait for the green LED to blink. This indicates that
the all the doors and the tailgate are locked. ■
Remote Engine Start with Vehicle Feedback
*
1 Remote Engine Start with Vehicle Feedback
*
WARNING:
Carbon monoxide gas is toxic and can
rapidly accumulate in closed or even partly enclosed
areas.
Breathing it can cause unconsciousness and even kill
you.
Never use the remote engine starter with the vehicle
parked in a garage or other areas with limited
ventilation.
Operate the remote in an open space from distances
up to 328 feet (100 meters) from the vehicle. If there
are buildings and obstacles between your vehicle and
the remote, the range will be reduced.
This distance may vary by external electrical
interference.
The engine may not start by the remote engine start
if:
•You have disabled a remote engine start setting
using the multi-information display (MID).•The power mode is not in VEHICLE OFF (LOCK).•The shift lever is in a position other than
( P.
•The hood is open, or any door or the tailgate is
unlocked.•You have already used the remote twice to start
the engine.•Another registered keyless access remote is in the
vehicle.•There is any antenna failure.•Door is unlocked with the built-in key.
With the doors locked, Press the button,
then press and hold the button.
Amber LED: Blinks when any button is pressed.
Continues to blink
during a vehicle
self check until the
engine starts. Go within the range,
and try again.
Green LED: Comes on while
the engine is running. Red LED: Blinks when the
remote is out of the keyless
access system range.
* Not available on all models

Continued
327
uuWhen Driving uStarting the Engine
Driving
■To stop the engine
Press and hold the button
for one second.
Go within the range,
and try again.
Amber LED: Blinks when any
button is pressed. Red LED:
●Comes on for one second to let you
know that the engine has stopped.●Blinks when the remote is out of
the keyless access system range.
The engine will not stop.
1
Remote Engine Start with Vehicle Feedback
*
•The engine oil pressure is low.•The engine coolant temperature is extremely high.•The telematics unit malfunctions.•The security system alarm is not set.
Before starting the engine, make sure to check the
door lock status using the remote. When you press
the button, wait for the green LED to blink. If
the red LED turns on, the doors and tailgate did not
lock, and the engine does not start.
While the engine is running, the vehicle will
automatically precondition inside the vehicle.
When it is warm outside:•The air conditioning is activated in recirculation
mode.•The seat ventilation is activated
*.
When it is cold outside:
•The defroster is activated at a moderately warm
temperature.•The rear defogger and door mirror heaters are
activated.•The seat and heated steering wheel are activated
*.
2 Heated Steering Wheel
* P. 181
2 Front Seat Heaters and Seat
Ventilation
* P. 182, 183
* Not available on all models