
Black plate (17,1)Chevrolet Impala Owner Manual - 2012
Instruments and Controls 5-17
Notice:Modifications made to the
engine, transmission, exhaust,
intake, or fuel system of the
vehicle or the replacement of the
original tires with other than
those of the same Tire
Performance Criteria (TPC) can
affect the vehicle's emission
controls and can cause this light
to come on. Modifications to
these systems could lead to
costly repairs not covered by the
vehicle warranty. This could also
result in a failure to pass a
required Emission Inspection/
Maintenance test. See
Accessories and Modifications on
page 10‑3.
This light comes on during a
malfunction in one of two ways:
Light Flashing: A misfire condition
has been detected. A misfire
increases vehicle emissions and
could damage the emission control
system on the vehicle. Diagnosis
and service might be required. To prevent more serious damage to
the vehicle:
.Reduce vehicle speed.
.Avoid hard accelerations.
.Avoid steep uphill grades.
.If towing a trailer, reduce the
amount of cargo being hauled as
soon as it is possible.
If the light continues to flash, stop
and park the vehicle. Turn the
vehicle off, wait at least 10 seconds,
and restart the engine. If the light is
still flashing, follow the previous
steps and see your dealer for
service as soon as possible.
Light On Steady: An emission
control system malfunction has
been detected on the vehicle.
Diagnosis and service might be
required. The following may correct an
emission system malfunction:
.Check that the fuel cap is fully
installed. See
Filling the Tank on
page 9‑40. The diagnostic
system can determine if the
fuel cap has been left off or
improperly installed. A loose or
missing fuel cap allows fuel to
evaporate into the atmosphere.
A few driving trips with the cap
properly installed should turn the
light off.
.Check that good quality fuel is
used. Poor fuel quality causes
the engine not to run as
efficiently as designed and may
cause stalling after start-up,
stalling when the vehicle is
changed into gear, misfiring,
hesitation on acceleration,
or stumbling on acceleration.
These conditions might go away
once the engine is warmed up.

Black plate (8,1)Chevrolet Impala Owner Manual - 2012
6-8 Lighting
Battery Load
Management
The vehicle has Electric Power
Management (EPM) that estimates
the battery's temperature and state
of charge. It then adjusts the voltage
for best performance and extended
life of the battery.
When the battery's state of charge
is low, the voltage is raised slightly
to quickly bring the charge back up.
When the state of charge is high,
the voltage is lowered slightly to
prevent overcharging. If the vehicle
has a voltmeter gauge or a voltage
display on the Driver Information
Center (DIC), you may see the
voltage move up or down. This is
normal. If there is a problem, an
alert will be displayed.
The battery can be discharged at
idle if the electrical loads are very
high. This is true for all vehicles.
This is because the generator
(alternator) may not be spinning fastenough at idle to produce all the
power that is needed for very high
electrical loads.
A high electrical load occurs when
several of the following are on, such
as: headlamps, high beams, fog
lamps, rear window defogger,
climate control fan at high speed,
heated seats, engine cooling fans,
trailer loads, and loads plugged into
accessory power outlets.
EPM works to prevent excessive
discharge of the battery. It does this
by balancing the generator's output
and the vehicle's electrical needs.
It can increase engine idle speed to
generate more power, whenever
needed. It can temporarily reduce
the power demands of some
accessories.
Normally, these actions occur in
steps or levels, without being
noticeable. In rare cases at the
highest levels of corrective action,
this action may be noticeable to the
driver. If so, a Driver Information
Center (DIC) message might bedisplayed, such as BATTERY
SAVER ACTIVE. If this messages
displays, it is recommended that the
driver reduce the electrical loads as
much as possible. See
Driver
Information Center (DIC) on
page 5‑24.
Battery Power Protection
This feature helps prevent the
battery from being drained, if the
interior courtesy lamps, reading/map
lamps, visor vanity lamps, or trunk
lamp are accidentally left on. If any
of these lamps are left on, they
automatically turn off after
10 minutes, if the ignition is off. The
lamps will not come back on again
until one of the following occurs:
.The ignition is turned on.
.The exterior lamps control is
turned off, then on again.
The headlamps will time out after
10 minutes, if they are manually
turned on with the ignition on or off.

Black plate (1,1)Chevrolet Impala Owner Manual - 2012
Driving and Operating 9-1
Driving and
Operating
Driving Information
Distracted Driving . . . . . . . . . . . . . 9-2
Defensive Driving . . . . . . . . . . . . . 9-3
Drunk Driving . . . . . . . . . . . . . . . . . 9-3
Control of a Vehicle . . . . . . . . . . . 9-3
Braking . . . . . . . . . . . . . . . . . . . . . . . 9-3
Steering . . . . . . . . . . . . . . . . . . . . . . . 9-4
Off-Road Recovery . . . . . . . . . . . . 9-4
Loss of Control . . . . . . . . . . . . . . . . 9-5
Driving on Wet Roads . . . . . . . . . 9-6
Highway Hypnosis . . . . . . . . . . . . 9-7
Hill and Mountain Roads . . . . . . 9-7
Winter Driving . . . . . . . . . . . . . . . . . 9-8
If the Vehicle Is Stuck . . . . . . . . 9-10
Vehicle Load Limits . . . . . . . . . . 9-11
Starting and Operating
New Vehicle Break-In . . . . . . . . 9-16
Ignition Positions . . . . . . . . . . . . 9-16
Starting the Engine . . . . . . . . . . 9-18
Engine Heater . . . . . . . . . . . . . . . 9-20
Retained AccessoryPower (RAP) . . . . . . . . . . . . . . . 9-20 Shifting Into Park . . . . . . . . . . . . 9-21
Shifting out of Park . . . . . . . . . . 9-22
Parking over Things
That Burn . . . . . . . . . . . . . . . . . . 9-23
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . 9-24
Running the Vehicle WhileParked . . . . . . . . . . . . . . . . . . . . . 9-25
Automatic Transmission
Automatic Transmission . . . . . 9-26
Manual Mode . . . . . . . . . . . . . . . . 9-28
Brakes
Antilock BrakeSystem (ABS) . . . . . . . . . . . . . . 9-29
Parking Brake . . . . . . . . . . . . . . . 9-30
Ride Control Systems
Traction Control System (TCS) . . . . . . . . . . . . . . 9-30
Electronic Stability Control (ESC) . . . . . . . . . . . . . . 9-32
Cruise Control
Cruise Control . . . . . . . . . . . . . . . 9-34
Fuel
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . 9-36
Recommended Fuel . . . . . . . . . 9-37
Gasoline Specifications (U.S.and Canada Only) . . . . . . . . . . 9-37
California Fuel
Requirements . . . . . . . . . . . . . . 9-37
Fuels in Foreign Countries . . . 9-37
Fuel Additives . . . . . . . . . . . . . . . 9-38
Fuel E85 (85% Ethanol) . . . . . 9-39
Filling the Tank . . . . . . . . . . . . . . 9-40
Filling a Portable Fuel Container . . . . . . . . . . . . . . . . . . . 9-42
Towing
General TowingInformation . . . . . . . . . . . . . . . . . 9-42
Driving Characteristics and
Towing Tips . . . . . . . . . . . . . . . . 9-43
Trailer Towing . . . . . . . . . . . . . . . . 9-46
Towing Equipment . . . . . . . . . . . 9-48
Conversions and Add-Ons
Add-On Electrical Equipment . . . . . . . . . . . . . . . . . 9-49

Black plate (12,1)Chevrolet Impala Owner Manual - 2012
9-12 Driving and Operating
Steps for Determining Correct
Load Limit
1.
Locate the statement“The
combined weight of
occupants and cargo should
never exceed XXX kg or
XXX lbs” on your vehicle's
placard.
2.Determine the combined
weight of the driver and
passengers that will be riding
in your vehicle.
3.Subtract the combined
weight of the driver and
passengers from XXX kg or
XXX lbs.
4.The resulting figure equals
the available amount of cargo
and luggage load capacity.
For example, if the “XXX”
amount equals 1400 lbs and
there will be five 150 lb
passengers in your vehicle,
the amount of available cargo
and luggage load capacity is
650 lbs (1400 −750 (5 x 150)
= 650 lbs).
5.Determine the combined
weight of luggage and cargo
being loaded on the vehicle.
That weight may not safely
exceed the available cargo
and luggage load capacity
calculated in Step 4.
6.If your vehicle will be towing
a trailer, the load from your
trailer will be transferred to
your vehicle. Consult this
manual to determine how this
reduces the available cargo
and luggage load capacity for
your vehicle.
If your vehicle can tow a trailer,
see Trailer Towing on page 9‑46
for important information on
towing a trailer, towing safety
rules, and trailering tips.

Black plate (16,1)Chevrolet Impala Owner Manual - 2012
9-16 Driving and Operating
Starting and
Operating
New Vehicle Break-In
Notice:The vehicle does not
need an elaborate break-in. But it
will perform better in the long run
if you follow these guidelines:
.Do not drive at any one
constant speed, fast or
slow, for the first 805 km
(500 miles). Do not make
full-throttle starts. Avoid
downshifting to brake or
slow the vehicle.
.Avoid making hard stops for
the first 322 km (200 miles) or
so. During this time the new
brake linings are not yet
broken in. Hard stops with
new linings can mean
premature wear and earlier
replacement. Follow this
breaking-in guideline every
time you get new brake
linings.
.Do not tow a trailer during
break-in. See Trailer Towing
on page 9‑46 for the trailer
towing capabilities of your
vehicle and more
information.
Following break‐in, engine speed
and load can be gradually
increased.
Ignition Positions
The ignition switch has four different
positions.
To shift out of P (Park), the ignition
must be in ON/RUN and the brake
pedal must be applied.
Notice: Using a tool to force the
key to turn in the ignition could
cause damage to the switch or
break the key. Use the correct
key, make sure it is all the way in,
and turn it only with your hand.
If the key cannot be turned by
hand, see your dealer.

Black plate (21,1)Chevrolet Impala Owner Manual - 2012
Driving and Operating 9-21
Shifting Into Park
{WARNING
It can be dangerous to get out of
the vehicle if the shift lever is not
fully in P (Park) with the parking
brake firmly set. The vehicle can
roll. If you have left the engine
running, the vehicle can move
suddenly. You or others could be
injured. To be sure the vehicle will
not move, even when you are on
fairly level ground, use the steps
that follow. If you are pulling a
trailer, seeDriving Characteristics
and Towing Tips on page 9‑43.
Steering Column Shift Lever
If the vehicle has a steering column
shift lever, use this procedure to
shift the vehicle into P (Park):
1. Hold the brake pedal down.
2. Move the shift lever into P (Park) by pulling the shift lever toward
you and moving it up as far as it
will go.
3. With your foot still holding the brake pedal down, set the
parking brake. See Parking
Brake on page 9‑30 for more
information.
4. Turn the ignition key to LOCK/OFF.
5. Remove the key and take it with you. If you can leave the vehicle
with the ignition key in your
hand, the vehicle is in P (Park).
Console Shift Lever
If the vehicle is equipped with a
console shift lever, use this
procedure to shift the vehicle into
P (Park):
1. Hold the brake pedal down.
2. Move the shift lever into P (Park)by pushing the lever all the way
toward the front of the vehicle.
3. While keeping the brake pedal applied, set the parking brake.
See Parking Brake on page 9‑30
for more information.
4. Turn the ignition key to LOCK/OFF.
5. Remove the key and take it with you. If you can leave the vehicle
with the ignition key in your
hand, the vehicle is in P (Park).

Black plate (25,1)Chevrolet Impala Owner Manual - 2012
Driving and Operating 9-25
Running the Vehicle
While Parked
It is better not to park with the
engine running. But if you ever have
to, here are some things to know.
{WARNING
Idling a vehicle in an enclosed
area with poor ventilation is
dangerous. Engine exhaust may
enter the vehicle. Engine exhaust
contains carbon monoxide (CO)
which cannot be seen or smelled.
It can cause unconsciousness
and even death. Never run the
engine in an enclosed area that
has no fresh air ventilation. For
more information, seeEngine
Exhaust on page 9‑24.
{WARNING
It can be dangerous to get out of
the vehicle if the automatic
transmission shift lever is not fully
in P (Park) with the parking brake
firmly set. The vehicle can roll. Do
not leave the vehicle when the
engine is running unless you
have to. If you have left the
engine running, the vehicle can
move suddenly. You or others
could be injured. To be sure the
vehicle will not move, even when
you are on fairly level ground,
always set the parking brake and
move the shift lever to P (Park). Follow the proper steps to be sure
the vehicle will not move. See
Shifting Into Park on page 9‑21.
If parking on a hill and pulling a
trailer, see
Driving Characteristics
and Towing Tips on page 9‑43.

Black plate (26,1)Chevrolet Impala Owner Manual - 2012
9-26 Driving and Operating
Automatic
Transmission
The automatic transmission has a
shift lever located on the console
between the seats, or on the
steering column. Gear positions are
indicated on the instrument cluster.
P (Park):This position locks the
front wheels. It is the best position
to use when starting the engine
because the vehicle cannot move
easily.
{WARNING
It is dangerous to get out of the
vehicle if the shift lever is not fully
in P (Park) with the parking brake
firmly set. The vehicle can roll.
Do not leave the vehicle when the
engine is running unless you
have to. If you have left the
engine running, the vehicle can
move suddenly. You or others
could be injured. To be sure the
vehicle will not move, even when
you are on fairly level ground,
always set the parking brake and
move the shift lever to P (Park).
See Shifting Into Park on
page 9‑21. If you are pulling a
trailer, see Driving Characteristics
and Towing Tips on page 9‑43.