2012 CHEVROLET IMPALA overheating

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 (35,1)Chevrolet Impala Owner Manual - 2012
Vehicle Care 10-35
Wheels and Tires
Tires
Every new GM vehicle has
high-quality tires made by a
leading tire manufacturer. See
the warranty manual for
information regarding the tire
warranty and where to get
service. For additional
information refer to the tire
manufacturer.
{WARNING
.Poorly maintained and
improperly used tires are
dangerous.
.Overloading the tires can
cause overheating as a result
of too much flexing. There
could be a blowout and a
serious crash. SeeVehicle
Load Limits on page 9‑11.
(Continued)
WARNING (Continued)
.Underinflated tires pose the
same danger as overloaded
tires. The resulting crash
could cause serious injury.
Check all tires frequently to
maintain the recommended
pressure. Tire pressure
should be checked when the
tires are cold.
.Overinflated tires are more
likely to be cut, punctured,
or broken by a sudden
impact—such as when
hitting a pothole. Keep tires at
the recommended pressure.
.Worn or old tires can cause a
crash. If the tread is badly
worn, replace them.
.Replace any tires that have
been damaged by impacts
with potholes, curbs, etc.
(Continued)
WARNING (Continued)
.Improperly repaired tires can
cause a crash. Only the
dealer or an authorized tire
service center should repair,
replace, dismount, and mount
the tires.
.Do not spin the tires in
excess of 55 km/h (35 mph)
on slippery surfaces such as
snow, mud, ice, etc.
Excessive spinning may
cause the tires to explode.

Black plate (41,1)Chevrolet Impala Owner Manual - 2012
Vehicle Care 10-41
Treadwear Indicators:Narrow
bands, sometimes called wear
bars, that show across the tread
of a tire when only 1.6 mm
(1/16 in) of tread remains. See
When It Is Time for New Tires
on page 10‑48.
UTQGS (Uniform Tire Quality
Grading Standards)
:
A tire information system
that provides consumers with
ratings for a tire's traction,
temperature, and treadwear.
Ratings are determined by
tire manufacturers using
government testing procedures.
The ratings are molded into the
sidewall of the tire. See Uniform
Tire Quality Grading on
page 10‑51.
Vehicle Capacity Weight
:The
number of designated seating
positions multiplied by 68 kg (150 lbs) plus the rated
cargo load. See
Vehicle Load
Limits on page 9‑11.
Vehicle Maximum Load on the
Tire
:Load on an individual tire
due to curb weight, accessory
weight, occupant weight, and
cargo weight.
Vehicle Placard
:A label
permanently attached to a
vehicle showing the vehicle
capacity weight and the original
equipment tire size and
recommended inflation pressure.
See “Tire and Loading
Information Label” underVehicle
Load Limits on page 9‑11.
Tire Pressure
Tires need the correct amount of
air pressure to operate
effectively. Notice:
Neither tire
underinflation nor
overinflation is good.
Underinflated tires, or tires
that do not have enough air,
can result in:
.Tire overloading and
overheating which could
lead to a blowout.
.Premature or
irregular wear.
.Poor handling.
.Reduced fuel economy.
Overinflated tires, or tires that
have too much air, can
result in:
.Unusual wear.
.Poor handling.
.Rough ride.
.Needless damage from
road hazards.

Black plate (4,1)Chevrolet Impala Owner Manual - 2012
i-4 INDEX
E
E85 Fuel . . . . . . . . . . . . . . . . . . . . . . . 9-39
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . 9-49
Electrical System Engine CompartmentFuse Block . . . . . . . . . . . . . . . . 10-30
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . 10-30
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . 10-34
Overload . . . . . . . . . . . . . . . . . . . 10-29
Electronic Stability Control . . . . . 9-32
Electronic Stability Control (ESC) Off Light . . . . . . . . . . . . . . . 5-20
Electronic Stability Control
(ESC)/Traction Control
System (TCS) Indicator
Warning Light . . . . . . . . . . . . . . . . 5-21
Emergency, OnStar
®. . . . . . . . . . 14-2
Engine Air Cleaner/Filter . . . . . . . . . . . .10-11
Check and Service EngineSoon Light . . . . . . . . . . . . . . . . . . 5-16
Compartment Overview . . . . . . . 10-6
Coolant . . . . . . . . . . . . . . . . . . . . . 10-13 Engine (cont.)
Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 5-12
Coolant Temperature
Warning Light . . . . . . . . . . . . . . . 5-21
Cooling System . . . . . . . . . . . . . 10-12
Cooling System Messages . . . 5-30
Drive Belt Routing . . . . . . . . . . . . 12-3
Exhaust . . . . . . . . . . . . . . . . . . . . . . 9-24
Heater . . . . . . . . . . . . . . . . . . . . . . . . 9-20
Overheated Protection Operating Mode . . . . . . . . . . . 10-17
Overheating . . . . . . . . . . . . . . . . 10-16
Power Messages . . . . . . . . . . . . . 5-32
Pressure Light . . . . . . . . . . . . . . . . 5-22
Running While Parked . . . . . . . . 9-25
Starting . . . . . . . . . . . . . . . . . . . . . . . 9-18
Engine Oil
Life System . . . . . . . . . . . . . . . . . 10-10
Messages . . . . . . . . . . . . . . . . . . . . 5-31
Entry Lighting . . . . . . . . . . . . . . . . . . . 6-7
Equipment, Towing . . . . . . . . . . . . 9-48
Event Data Recorders . . . . . . . . 13-15
Extender, Safety Belt . . . . . . . . . . 3-19
Exterior Lamp Controls . . . . . . . . . 6-1
F
Filter, Engine Air Cleaner . . . . . . . . . .10-11
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 6-3
Flashers, Hazard Warning . . . . . . 6-4
Flat Tire . . . . . . . . . . . . . . . . . . . . . . 10-54 Changing . . . . . . . . . . . . . . . . . . . 10-56
Floor Mats . . . . . . . . . . . . . . . . . . . . 10-75
Fluid Automatic Transmission . . . . .10-11
Brakes . . . . . . . . . . . . . . . . . . . . . . 10-20
Power Steering . . . . . . . . . . . . . 10-17
Washer . . . . . . . . . . . . . . . . . . . . . 10-18
Fog Lamps Bulb Replacement . . . . . . . . . . . . . 6-5
Front Fog Lamp
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . 3-3
Heated . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Black plate (8,1)Chevrolet Impala Owner Manual - 2012
i-8 INDEX
O
Odometer . . . . . . . . . . . . . . . . . . . . . . 5-11
Off-RoadRecovery . . . . . . . . . . . . . . . . . . . . . . 9-4
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 10-7
Engine Oil Life System . . . . . 10-10
Messages . . . . . . . . . . . . . . . . . . . . 5-31
Pressure Light . . . . . . . . . . . . . . . . 5-22
Older Children, Restraints . . . . . 3-36
Online Owner Center . . . . . . . . . . 13-4
OnStar
®
Additional Information . . . . . . . . 14-5
Connections . . . . . . . . . . . . . . . . . . 14-4
Diagnostics . . . . . . . . . . . . . . . . . . . 14-5
Emergency . . . . . . . . . . . . . . . . . . . 14-2
Navigation . . . . . . . . . . . . . . . . . . . . 14-2
Overview . . . . . . . . . . . . . . . . . . . . . 14-1
Security . . . . . . . . . . . . . . . . . . . . . . 14-2
OnStar
®System . . . . . . . . . . . . . . . 1-19
Operation, Infotainment System . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Ordering Service Publications . . . . . . . . 13-12 Outlets
Power . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Overheated Engine Protection
Operating Mode . . . . . . . . . . . . . 10-17
Overheating, Engine . . . . . . . . . . 10-16
Overview, OnStar
®. . . . . . . . . . . . 14-1
P
Parade Dimming . . . . . . . . . . . . . . . . 6-7
Park Shifting into . . . . . . . . . . . . . . . . . . . 9-21
Shifting out of . . . . . . . . . . . . . . . . . 9-22
Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . 9-30
Brake and P (Park)Mechanism Check . . . . . . . . 10-23
Over Things That Burn . . . . . . . 9-23
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . 5-15
Passenger Compartment Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
Passenger Sensing System . . . 3-28
Perchlorate Materials
Requirements, California . . . . . 10-3 Personalization
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 5-37
Phone Bluetooth . . . . . . . . . . . . . . . . . . . . . 7-20
Power Door Locks . . . . . . . . . . . . . . . . . . . . 2-8
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Outlets . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Protection, Battery . . . . . . . . . . . . . 6-8
Retained Accessory (RAP) . . . 9-20
Seat Adjustment . . . . . . . . . . . . . . . 3-4
Steering Fluid . . . . . . . . . . . . . . . 10-17
Windows . . . . . . . . . . . . . . . . . . . . . 2-16
Pregnancy, Using Safety Belts . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
Privacy
Radio FrequencyIdentification (RFID) . . . . . . . 13-16
Program Courtesy Transportation . . . . . . 13-8
Proposition 65 Warning,
California . . . . . . . . . . . . . . . . . . . . . 10-3