2012 Acura TL check engine

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Aggressive driving (hard
acceleration and braking)
Excessive idling, accelerating and
braking in stop-and-go traf f ic
Cold engine operation (engines
aremoreefficientwhenwarmed
up)
Driving with a heavy load or the
air conditioner running
Improperly inf lated tires
The f ollowing f actors can lower your
vehicle’s f uel economy:
Rapid
acceleration, abrupt cornering,
and hard braking increase fuel
consumption.
Aerodynamic drag has a big ef f ect
on f uel 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.
If your vehicle has a
manual transmission, you can
boost your f uel economy by up
shif ting as early as possible.
Idling
results in 0 miles per gallon (0 kms
per liter).
It puts a heavier
load on the engine, increasing f uel
consumption.
In
particular, a build-up of snow or
mud on your vehicle’s underside
adds weight and rolling resistance.
Frequent cleaning helps your f uel
economy. An underinf lated tire increases
‘‘rolling resistance,’’ which reduces
f uel economy.
A properly maintained vehicle
maximizes f uel economy. Poor
maintenance can signif icantly reduce
f uel economy. Always maintain your
vehicle according to the maintenance
messages displayed on the multi-
inf ormation display (see on page ).For example:
539
CONT INUED
Fuel Economy Factors Use the recommended viscosity
motor oil, displaying the A PI
Certif ication Seal (see page ).
Improving Fuel Economy Drive moderately
Observe the speed limit
Always drive in the highest gear
possible
Avoid excessive idling
A void carrying excess weight in
your vehicle
K eep your vehicle clean Maintain proper tire inf lation
Owner’s
Maintenance Checks 543
Vehicle Maint enance
Drive Ef f icient ly
Fuel Economy
Bef ore Driving
477
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2012 TL

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Fill the f uel tank until the nozzle automatically clicks of f .
Reset trip counter to zero.
Record the total gallons (liters) needed to ref ill.
Follow one of the simple calculations above.
The A/C
puts an extra load on the engine
which makes it use more f uel. Use
the f resh-air ventilation when
possible.
Combine several short trips into
one. A warmed-up engine is more
f uel ef f icient than a cold one.
Direct calculation is the
recommended source of inf ormation
about your actual f uel economy.
Using f requency of f ill-ups or taking
f uel gauge readings are NOT
accurate measures of f uel economy.
Fuel economy may improve over the
f irst several thousand miles
(kilometers). 1)
2)
3)
4)
Checking Your Fuel Economy
Measuring T echniquesMinimize the use of the air
conditioning system
Plan and combine trips
Calculating Fuel Economy
Fuel Economy
478
Miles per Gallon
100 Kilometers
Gallons
of fuel
Miles
driven
Liter Lper
100 km
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Bef ore Driving
2012 TL

Make sure all windows, mirrors,
and outside lights are clean and
unobstructed. Remove f rost, snow,
or ice.Check the seat adjustment (see
page ).
Check the adjustment of the
inside and outside mirrors (see
page ).
Check the steering wheel
adjustment (see page ).
Make sure the doors are securely
closed and locked.
Fasten your seat belt. Check that
your passengers have f astened
their seat belts (see page ).When you start the engine, check
the gauges and indicators in the
instrument panel, and the
messages on the multi-information
display (see pages , and
).
Youshoulddothesechecksand
adjustments bef ore you drive your
vehicle:
Check that the hood is f ully closed.
Check that the trunk is f ully
closed.
Visually check the tires. If a tire
looks low, use a gauge to check its
pressure.
Check that any items you may be
carrying are stored properly or
f astened down securely.
3.
2.
1.
7.
8.
9.
4.
5. 6.
63
16
10. 11.
76
167
146
161
Preparing to Drive
486
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and 78
Driving
2012 TL

If there is a problem with the
starting system, you will see a
‘‘CHECK STARTING SYSTEM’’
message on the multi-inf ormation
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
switchhastobeheldintheSTART
(III) position manually until the
engine starts. The ignition switch
canbeheldinthatpositionupto15
seconds.
Even though you may be able to
start the engine manually without
the auto control mode of the starting
system, have your vehicle inspected
by a dealer.
Check Starting System Message
Starting the Engine (Models without Keyless Access System)
488
11/01/14 19:19:56 31TK4630_493
Driving
2012 TL

If you cannot start the engine using
the normal engine start procedure,
do the f ollowing:Set the parking brake.
If there is a problem with the
starting system, you will see a
‘‘CHECK STARTING SYSTEM’’
message on the multi-inf ormation
display with the power mode ON.
You will also see this message when
the auto control mode of the starting
system has a problem. Do not f ollow this procedure unless
it is a case of emergency. Even if you
can start the engine using this
method, the system may have a
malf unction. Contact your dealer as
soon as possible.Press and hold the engine start/
stop button f or about 15 seconds
while pressing the brake pedal
(automatic) or the clutch pedal
(manual). Press the engine start/stop button
to turn on the ACCESSORY mode. Put the shif t lever into Park.
If this message is on, you should
press and hold the engine start/stop
button until the engine starts. The
engine start/stop button may need to
be held several seconds bef ore the
starter motor runs. The starter
motor can be run up to 15 seconds.
Your vehicle has the engine start/
stop button instead of an ignition
switch to select the power mode. For
more information, see page . Even though you may be able to
start the engine manually without
the auto control mode of the starting
system, have your vehicle inspected
by a dealer.
1.
2.
3.
4.
184
Automatic transmission:
Starting the Engine (Models with Keyless Access System)
Emergency Engine Start
Check Starting System Message
490
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Driving
2012 TL

Press the clutch pedal, and shif t to
reverse.
The manual transmission has a
lockout so you cannot accidentally
shif t f rom any f orward gear to
reverse while the vehicle is moving
at a certain speed. If you cannot shif t
to reverse when the vehicle is
stopped, do the f ollowing:
With the clutch pedal pressed,
move the shift lever to the first/
second gear side of the neutral
gate, then shif t to reverse.If you are still unable to shif t to
reverse, apply the parking brake,
and select the ACCESSORY or
VEHICLE OFF (LOCK) mode
(see page ).
With the clutch pedal still pressed
f ully, press the engine start/stop
button to start the engine.
If you need to use this procedure to
shif t to reverse, your vehicle may be
developing a problem. Have it
checked by your dealer.
1. 2.
3.
4.
185
Reverse Lockout
Manual T ransmission
Driving
493
Move the shift lever in sequence.
11/01/14 19:20:53 31TK4630_498
2012 TL

Î
These indicators between the
tachometer and speedometer show
which position the shif t lever is in.Using a paddle shif t mode, the gear
position indicator shows you the
selected gear number (see page
).
The ‘‘D’’ indicator comes on f or a
f ew seconds when you turn the
ignition switch to the ON (II)
position. If it f lashes while driving (in
any shif t position), it indicates a
possible problem in the transmission. If the malf unction indicator lamp
comes on along with the ‘‘D’’
indicator, there is a problem with the
automatic transmission control
system. Avoid rapid acceleration and
have the transmission checked by
your dealer as soon as possible.
When the ‘‘D’’ indicator warns of a
possible problem with the
transmission, you will see a ‘‘CHECK
TRANSMISSION’’ message on the
multi-inf ormation display.
499
Shif t L ever Position Indicators
Automatic Transmission
494
GEAR POSITION INDICATOR on
PADDLE SHIFT MODE
11/01/14 19:21:03 31TK4630_499
page
Driving
Î
Models equipped with the keyless access
system have an engine start/stop button
instead of an ignition switch. ON Mode
is the equivalent of ON (II). For more
information, see
page s 184 and 187.
:
2012 TL

Put a cloth on the edge of the shif t
lock release slot cover to prevent
scratches. Use a small f lat-tip
screwdriver or metal f ingernail f ile
to caref ully pry up the edge of the
cover and remove it from the slot.Insert a key or built-in key in the
shif t lock release slot.
Push down on the key or built-in
key while you press the release
buttonontheshiftleverandmove
the shift lever out of Park to
neutral.Remove the key or built-in key
from the shift lock release slot,
then reinstall the cover. Make
sure the notch on the cover is on
the rear side. Press the brake
pedal, and restart the engine.
If you need to use the shif t lock
release, it means your vehicle is
developing a problem. Have it
checked by your dealer.
3. 6.
5. 4.
Automatic Transmission
498
SHIFT LOCK
RELEASE SLOT
Vehicle without keyless access system
is shown.
COVER
11/01/14 19:21:41 31TK4630_503
Driving
2012 TL