2012 Acura MDX check engine

Before you begin driving your
vehicle, you should know what
gasoline to use and how to check the
levels of important fluids. You also
need to know how to properly store
luggage or packages. The
information in this section will help
you. If you plan to add any
accessories to your vehicle, please
read the information in this section
first.Break-in Period
...........................
422
Fuel Recommendation
................
422
Service Station Procedures
.........
424
Refueling
.................................
424
Tighten Fuel Cap Message
.....
425
Opening and Closing the
Hood
...................................
426
Oil Check
................................
427
Engine Coolant Check
............
427
Fuel Economy
.............................
428
Accessories and
Modifications
..........................
431
Carrying Cargo
...........................
433
Before Driving
421
Before Driving

5. Screw the fuel fill cap back on until
it clicks at least once. If you do not
properly tighten the cap, you will
see a‘‘TIGHTEN FUEL CAP’’
message on the multi-information
display (see right column on this
page), and the malfunction
indicator lamp may also come on
(see page 563).
6. Push the fuel fill door closed until
it latches.Tighten Fuel Cap Message
Your vehicle's on board diagnostic system
will detect a loose or missing fuel fill cap as
an evaporative system leak. The first time a
leak is detected a‘‘TIGHTEN FUEL CAP’’
message appears on the multi-information
display. Turn the engine off, and confirm the
fuel fill cap is installed. If it is, loosen it, then
retighten it until it clicks at least once. The
message should go off after several days of
normal driving once you tighten or replace
the fuel fill cap. To scroll to another message,
press the INFO button. The‘‘TIGHTEN
FUEL CAP’’message will appear each time
you restart the engine until the system turns
the message off.
If the system still detects a leak in
the vehicle's evaporative emissions
system, the malfunction indicator
lamp (MIL) comes on. If the fuel fill
cap was not already tightened, turn
the engine off, and check or
retighten the fuel fill cap until it
clicks at least once. The MIL should
go off after several days of normal
driving once the cap is tightened or
replaced. If the MIL does not go off,
have your vehicle inspected by a
dealer. For more information, see
page 563.Service Station Procedures
425
Before Driving

Oil CheckWait a few minutes after turning the
engine off before you check the oil.
1. Remove the dipstick (orange loop).
2. Wipe off the dipstick with a clean
cloth or paper towel.
3. Insert the dipstick all the way back
into its hole.
4. Remove the dipstick again, and
check the level. It should be
between the upper and lower
marks.
If it is near or below the lower mark,
seeAdding Engine Oilon page 517.Engine Coolant Check
Look at the coolant level in the
radiator reserve tank. Make sure it is
between the MAX and MIN lines. If
it is below the MIN line, seeAdding
Engine Coolanton page 520 for
information on adding the proper
coolant.
Refer toOwner's Maintenance
Checkson page 513 for information
about checking other items on your
vehicle.
DIPSTICK
UPPER MARK
LOWER MARK
RESERVE TANK
MIN
MAX
CONTINUED
Service Station Procedures
427
Before Driving

Fuel Economy Factors
The following factors can lower your
vehicle's fuel economy:●
Aggressive driving (hard
acceleration and braking)
●
Excessive idling, accelerating and
braking in stop-and-go traffic
●
Cold engine operation (engines
are more efficient when warmed
up)
●
Driving with a heavy load or the air
conditioner running
●
Improperly inflated tires
Improving Fuel EconomyVehicle MaintenanceA properly maintained vehicle
maximizes fuel economy. Poor
maintenance can significantly reduce
fuel economy. Always maintain your
vehicle according to the maintenance
messages displayed on the multi-
information display (seeOwner's
Maintenance Checkson page 513).For example:
●
Use the recommended viscosity
motor oil, displaying the API
Certification Seal (see page 517).
●
Maintain proper tire inflation－
An underinflated tire increases
‘‘rolling resistance,’’which reduces
fuel economy.
●
Avoid carrying excess weight in
your vehicle－It puts a heavier
load on the engine, increasing fuel
consumption.
●
Keep your vehicle clean－In
particular, a build-up of snow or mud
on your vehicle's underside adds
weight and rolling resistance.
Frequent cleaning helps your fuel
economy.
Drive Efficiently●
Drive moderately－Rapid
acceleration, abrupt cornering, and
hard braking increase fuel
consumption.
●
Observe the speed limit－
Aerodynamic drag has a big effect
on fuel economy at speeds above
45 mph (75 km/h). Reduce your
speed and you reduce the drag.
Trailers, car top carriers, roof
racks and bike racks are also big
contributors to increased drag.
●
Always drive in the highest gear
possible－If your vehicle has a
manual transmission, you can
boost your fuel economy by up
shifting as early as possible.
●
Avoid excessive idling－Idling
results in 0 miles per gallon (0 kms
per liter).
CONTINUED
Fuel Economy
429
Before Driving

●
Minimize the use of the air
conditioning system－The A/C
puts an extra load on the engine
which makes it use more fuel. Use
the fresh-air ventilation when
possible.
●
Plan and combine trips－
Combine several short trips into
one. A warmed-up engine is more
fuel efficient than a cold one.
Calculating Fuel Economy
Measuring TechniquesDirect calculation is the
recommended source of information
about your actual fuel economy.
Using frequency of fill-ups or taking
fuel gauge readings are NOT
accurate measures of fuel economy.
Fuel economy may improve over the
first several thousand miles
(kilometers).
Checking Your Fuel Economy1)Fill the fuel tank until the nozzle automatically clicks off.
2)Reset trip counter to zero.
3)Record the total gallons (liters) needed to refill.
4)Follow one of the simple calculations above.
Miles driven
100Gallons of
fuelMiles per
Gallon
L per 100 km Kilometers Liter
Fuel Economy430

This section gives you tips on
starting the engine under various
conditions, and how to operate the
automatic transmission. It also
includes important information on
parking your vehicle, the braking
system, the Super Handling-All
Wheel Drive™(SH-AWD
®) system,
the vehicle stability assist (VSA
®)
system, active damper system (If
equipped), the tire pressure
monitoring system (TPMS), the
collision mitigation braking system™
(CMBS™), the blind spot information
system (BSI) and facts you need if
you are planning to tow a trailer or
drive off-high way.Driving Guidelines
......................
440
Preparing to Drive
......................
441
Starting the Engine
.....................
442
Check Starting System
Message
.............................
443
Automatic Transmission
.............
443
Driving with the Paddle
Shifters
................................
447
Using the Paddle Shifters in
the D position (D-Paddle
Shift Mode)
.....................
447
Using the Paddle Shifters in
the S position (Sequential
Shift Mode)
.....................
449
Super Handling-All Wheel
Drive™(SH-AWD
®)
System
................................
452
Parking
.......................................
454
Tire Pressure Monitoring System
(TPMS)
...................................
455
Braking System
..........................
460
Anti-lock Brakes (ABS)
...............
461
Collision Mitigation Braking
System™(CMBS™)
...............
463Vehicle Stability Assist (VSA
®),
aka Electronic Stability Control
(ESC), System
.....................
473
Blind Spot Information System
(BSI)
.......................................
476
Active Damper System
................
484
Towing a Trailer
..........................
487
Trailer Stability Assist
.................
498
Off-Highway Driving
Guidelines
...............................
500
Driving
439
Driving

You should do the following checks
and adjustments before you drive
your vehicle.
1. Make sure all windows, mirrors,
and outside lights are clean and
unobstructed. Remove frost, snow,
or ice.
2. Check that the hood is fully
closed.
3. Visually check the tires. If a tire
looks low, use a gauge to check its
pressure.
4. Check that any items you may be
carrying are stored properly or
fastened down securely.
5. Check the seat adjustment (see
page 149).6. Check the adjustment of the inside
and outside mirrors (see page
165).
7. Check the steering wheel
adjustment (see page 134).
8. Make sure the doors and tailgate
are securely closed and locked.
9. Fasten your seat belt. Check that
your passengers have fastened
their seat belts (see page 16).10. When you start the engine, check
the gauges and indicators in the
instrument panel, and the
messages on the multi-information
display (see pages 67, 78 and 87).
Preparing to Drive
441
Driving

Check Starting System MessageIf there is a problem with the starting
system, you will see a‘‘CHECK
STARTING SYSTEM’’message on
the multi-information display when
the ignition switch is turned to the
ON (II) position. You will also see
this message when the auto control
mode of the starting system has a
problem.If this message is on, the ignition
switch has to be held in the START
(III) position manually until the
engine starts. The ignition switch can
be held in that position up to 15
seconds.
Even though you may be able to start
the engine manually without the auto
control mode of the starting system,
have your dealer inspect your
vehicle.Shift Lever Position Indicators
These indicators on the instrument
panel show which position the shift
lever is in.
The‘‘D’’indicator comes on for a few
seconds when you turn the ignition
switch to the ON (II) position. If it
flashes while driving (in any shift
position), it indicates a possible
problem in the transmission.
CONTINUED
Starting the Engine, Automatic Transmission
443
Driving