
Black plate (16,1)Chevrolet Impala Owner Manual - 2012
10-16 Vehicle Care
Engine Overheating
There is a coolant temperature
gauge and a engine coolant
temperature warning light on the
instrument panel cluster that
indicate an overheated engine
condition. SeeEngine Coolant
Temperature Gauge on page 5‑12
and Engine Coolant Temperature
Warning Light on page 5‑21 for
more information.
If the decision is made not to lift the
hood when this warning appears,
get service help right away. See
Roadside Assistance Program on
page 13‑6.
If the decision is made to lift the
hood, make sure the vehicle is
parked on a level surface.
Then check to see if the engine
cooling fans are running. If the
engine is overheating, the fans
should be running. If not, do not
continue to run the engine and have
the vehicle serviced. Notice:
Engine damage from
running the engine without
coolant is not covered by the
warranty.
If Steam Is Coming from the
Engine Compartment
See Overheated Engine Protection
Operating Mode on page 10‑17 for
information on driving to a safe
place in an emergency.
If No Steam Is Coming from
the Engine Compartment
If an engine overheat warning is
displayed but no steam can be seen
or heard, the problem might not be
too serious. Sometimes the engine
can get a little too hot when the
vehicle:
.Climbs a long hill on a hot day.
.Stops after high-speed driving.
.Idles for long periods in traffic.
.Tows a trailer. If the overheat warning displays with
no sign of steam:
1. Turn the air conditioning off.
2. Turn the heater on to the highest
temperature and to the highest
fan speed. Open the windows as
necessary.
3. In heavy traffic, let the engine idle in N (Neutral) while stopped.
If it is safe to do so, pull off the
road, shift to P (Park) or
N (Neutral), and let the
engine idle.
If the temperature overheat gauge is
no longer in the overheat zone or an
engine coolant temperature warning
light no longer displays, the vehicle
can be driven. Continue to drive the
vehicle slowly for about 10 minutes.
Keep a safe vehicle distance from
the vehicle in front. If the warning
does not come back on, continue to
drive normally.
If the warning continues, pull over,
stop, and park the vehicle
right away.

Black plate (44,1)Chevrolet Impala Owner Manual - 2012
10-44 Vehicle Care
Federal Communications
Commission (FCC) Rules and
with Industry Canada
Standards
SeeRadio Frequency Statement on
page 13‑16 for information
regarding Part 15 of the Federal
Communications Commission (FCC)
Rules and with Industry Canada
Standards RSS-GEN/210/220/310.
Tire Pressure Monitor
Operation
This vehicle may have a Tire
Pressure Monitor System (TPMS).
The TPMS is designed to warn the
driver when a low tire pressure
condition exists. TPMS sensors are
mounted onto each tire and wheel
assembly, excluding the spare tire
and wheel assembly. The TPMS
sensors monitor the air pressure in
the tires and transmit the tire
pressure readings to a receiver
located in the vehicle.
When a low tire pressure condition
is detected, the TPMS illuminates
the low tire pressure warning light
located on the instrument cluster.
If the warning light comes on, stop
as soon as possible and inflate the
tires to the recommended pressure
shown on the Tire and Loading
Information label. See Vehicle Load
Limits on page 9‑11.
A message to check the pressure in
a specific tire displays in the Driver
Information Center (DIC). The low
tire pressure warning light and the
DIC warning message come on at
each ignition cycle until the tires are
inflated to the correct inflation
pressure. Using the DIC, tire
pressure levels can be viewed. For
additional information and details
about the DIC operation and displays, see
Driver Information
Center (DIC) on page 5‑24 andTire
Messages on page 5‑36.
The low tire pressure warning light
may come on in cool weather when
the vehicle is first started, and then
turn off as the vehicle is driven. This
could be an early indicator that the
air pressure is getting low and
needs to be inflated to the proper
pressure.
A Tire and Loading Information label
shows the size of the original
equipment tires and the correct
inflation pressure for the tires when
they are cold. See Vehicle Load
Limits on page 9‑11, for an example
of the Tire and Loading Information
label and its location. Also see Tire
Pressure on page 10‑41.
The TPMS can warn about a low
tire pressure condition but it does
not replace normal tire
maintenance. See Tire Inspection
on page 10‑47, Tire Rotation on
page 10‑47, and Tires on
page 10‑35.

Black plate (72,1)Chevrolet Impala Owner Manual - 2012
10-72 Vehicle Care
Underbody Maintenance
Use plain water to flush dirt and
debris from the vehicle's underbody.
Your dealer or an underbody car
washing system can do this. If not
removed, rust and corrosion can
develop.
Sheet Metal Damage
If the vehicle is damaged and
requires sheet metal repair or
replacement, make sure the body
repair shop applies anti-corrosion
material to parts repaired or
replaced to restore corrosion
protection.
Original manufacturer replacement
parts will provide the corrosion
protection while maintaining the
vehicle warranty.
Finish Damage
Quickly repair minor chips and
scratches with touch-up materials
available from your dealer to avoid
corrosion. Larger areas of finish
damage can be corrected in your
dealer's body and paint shop.
Chemical Paint Spotting
Airborne pollutants can fall upon
and attack painted vehicle surfaces
causing blotchy, ring-shaped
discolorations, and small, irregular
dark spots etched into the paint
surface.
Interior Care
To prevent dirt particle abrasions,
regularly clean the vehicle's interior.
Immediately remove any soils. Note
that newspapers or dark garments
that can transfer color to home
furnishings can also permanently
transfer color to the vehicle's
interior.Use a soft bristle brush to remove
dust from knobs and crevices on the
instrument cluster. Using a mild
soap solution, immediately remove
hand lotions, sunscreen, and insect
repellant from all interior surfaces or
permanent damage may result.
Your dealer may have products for
cleaning the interior. Use cleaners
specifically designed for the
surfaces being cleaned to prevent
permanent damage. To prevent
overspray, apply all cleaners directly
to the cleaning cloth. Cleaners
should be removed quickly. Never
allow cleaners to remain on the
surface being cleaned for extended
periods of time.
Cleaners may contain solvents that
can become concentrated in the
interior. Before using cleaners, read
and adhere to all safety instructions
on the label. While cleaning the
interior, maintain adequate
ventilation by opening the doors
and windows.

Black plate (9,1)Chevrolet Impala Owner Manual - 2012
Service and Maintenance 11-9
Battery
The battery supplies power to start
the engine and operate any
additional electrical accessories.
.To avoid break‐down or failure to
start the vehicle, maintain a
battery with full cranking power.
.Trained dealer technicians have
the diagnostic equipment to test
the battery and ensure that the
connections and cables are
corrosion‐free.
Belts
.Belts may need replacing if they
squeak or show signs of
cracking or splitting.
.Trained dealer technicians
can inspect the belts and
recommend replacement when
necessary. Brakes
Brakes stop the vehicle and are
crucial to safe driving.
.Signs of brake wear may include
chirping, grinding, or squealing
noises, or difficulty stopping.
.Trained dealer technicians have
access to tools and equipment
to inspect the brakes and
recommend quality parts
engineered for the vehicle.
Fluids
Proper fluid levels and approved
fluids protect the vehicle’s systems
and components. See
Recommended Fluids and
Lubricants on page 11‑11 for GM
approved fluids.
.Engine oil and windshield
washer fluid levels should be
checked at every fuel fill.
.Instrument cluster lights may
come on to indicate that fluids
may be low and need to be
filled. Hoses
Hoses transport fluids and should
be regularly inspected to ensure
that there are no cracks or leaks.
With a multi‐point inspection, your
dealer can inspect the hoses and
advise if replacement is needed.
Lamps
Properly working headlamps,
taillamps, and brake lamps are
important to see and be seen on
the road.
.Signs that the headlamps need
attention include dimming, failure
to light, cracking, or damage.
The brake lamps need to be
checked periodically to ensure
that they light when braking.
.With a multi‐point inspection,
your dealer can check the lamps
and note any concerns.

Black plate (3,1)Chevrolet Impala Owner Manual - 2012
INDEX i-3
Cluster, Instrument . . . . . . . . . . . . 5-10
Collision Damage Repair . . . . . 13-10
Compact Spare Tire . . . . . . . . . . 10-63
Compass . . . . . . . . . . . . . . . . . . . . . . . 5-5
Connections, OnStar
®. . . . . . . . . 14-4
Control of a Vehicle . . . . . . . . . . . . . 9-3
Convenience Net . . . . . . . . . . . . . . . 4-2
Convex Mirrors . . . . . . . . . . . . . . . . 2-14
Coolant Engine . . . . . . . . . . . . . . . . . . . . . . 10-13
Engine TemperatureGauge . . . . . . . . . . . . . . . . . . . . . . 5-12
Engine Temperature Warning Light . . . . . . . . . . . . . . . 5-21
Cooling System . . . . . . . . . . . . . . . 10-12 Engine Messages . . . . . . . . . . . . 5-30
Courtesy Lamps . . . . . . . . . . . . . . . . 6-6
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . 13-8
Cruise Control . . . . . . . . . . . . . . . . . 9-34 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24
Cupholders . . . . . . . . . . . . . . . . . . . . . 4-1
Customer Assistance . . . . . . . . . . 13-4 Offices . . . . . . . . . . . . . . . . . . . . . . . . 13-3
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 13-4 Customer Information
Service Publications
Ordering Information . . . . . . 13-12
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . 13-1
D
Damage Repair, Collision . . . . . 13-10
Danger, Warnings, andCautions . . . . . . . . . . . . . . . . . . . . . . . . iv
Data Recorders, Event . . . . . . . 13-15
Daytime Running Lamps/ Automatic Headlamp
System . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Defensive Driving . . . . . . . . . . . . . . . 9-3
Delayed Entry Lighting . . . . . . . . . 6-7
Delayed Exit Lighting . . . . . . . . . . . 6-7
Delayed Locking . . . . . . . . . . . . . . . . 2-8
Devices, Auxiliary . . . . . . . . . . . . . 7-19
Diagnostics, OnStar
®. . . . . . . . . . 14-5
Distracted Driving . . . . . . . . . . . . . . . 9-2
Dome Lamps . . . . . . . . . . . . . . . . . . . 6-6 Door
Ajar Messages . . . . . . . . . . . . . . . 5-30
Delayed Locking . . . . . . . . . . . . . . . 2-8
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Power Locks . . . . . . . . . . . . . . . . . . . 2-8
Drive Belt Routing, Engine . . . . . 12-3
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . 5-24
Driving Characteristics andTowing Tips . . . . . . . . . . . . . . . . . 9-43
Defensive . . . . . . . . . . . . . . . . . . . . . . 9-3
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
For Better Fuel Economy . . . . . 1-18
Highway Hypnosis . . . . . . . . . . . . . 9-7
Hill and Mountain Roads . . . . . . . 9-7
If the Vehicle is Stuck . . . . . . . . . 9-10
Loss of Control . . . . . . . . . . . . . . . . 9-5
Off-Road Recovery . . . . . . . . . . . . 9-4
Vehicle Load Limits . . . . . . . . . . . 9-11
Wet Roads . . . . . . . . . . . . . . . . . . . . 9-6
Winter . . . . . . . . . . . . . . . . . . . . . . . . . 9-8

Black plate (6,1)Chevrolet Impala Owner Manual - 2012
i-6 INDEX
Hill and Mountain Roads . . . . . . . . 9-7
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
How to Wear Safety BeltsProperly . . . . . . . . . . . . . . . . . . . . . . 3-11
I
Ignition Positions . . . . . . . . . . . . . . 9-16
Ignition Transmission LockCheck . . . . . . . . . . . . . . . . . . . . . . . 10-23
Immobilizer . . . . . . . . . . . . . . . . . . . . 2-12
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . 3-38
Infotainment . . . . . . . . . . . . . . . . . . . . 7-1
Instrument Cluster . . . . . . . . . . . . . 5-10
Introduction . . . . . . . . . . . . . . . . . . . . . . . iii
J
Jump Starting . . . . . . . . . . . . . . . . . 10-64
K
Key and Lock Messages . . . . . . . 5-33
Keyless Entry Remote (RKE) System . . . . . . . . 2-3
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
L
Labeling, Tire Sidewall . . . . . . . . 10-36
Lamp Messages . . . . . . . . . . . . . . . 5-33
Lamps Courtesy . . . . . . . . . . . . . . . . . . . . . . . 6-6
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Exterior Controls . . . . . . . . . . . . . . . 6-1
License Plate . . . . . . . . . . . . . . . 10-29
Malfunction Indicator . . . . . . . . . 5-16
Reading . . . . . . . . . . . . . . . . . . . . . . . 6-6
Lap Belt . . . . . . . . . . . . . . . . . . . . . . . 3-18
Lap-Shoulder Belt . . . . . . . . . . . . . 3-13
LATCH System Replacing Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . 3-51
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . 3-45 Light
Electronic Stability Control
(ESC), Off . . . . . . . . . . . . . . . . . . . 5-20
Electronic Stability Control (ESC)/Traction Control
System (TCS) Indicator
Warning . . . . . . . . . . . . . . . . . . . . . 5-21
Lighter, Cigarette . . . . . . . . . . . . . . . 5-8
Lighting Delayed Entry . . . . . . . . . . . . . . . . . 6-7
Delayed Exit . . . . . . . . . . . . . . . . . . . 6-7
Entry . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Illumination Control . . . . . . . . . . . . 6-5
Parade Dimming . . . . . . . . . . . . . . . 6-7
Lights Airbag Readiness . . . . . . . . . . . . . 5-14
Antilock Brake System
(ABS) Warning . . . . . . . . . . . . . . 5-20
Brake System Warning . . . . . . . 5-19
Charging System . . . . . . . . . . . . . 5-16
Cruise Control . . . . . . . . . . . . . . . . 5-24
Engine Coolant Temperature Warning . . . . . . . 5-21