service indicator CHEVROLET IMPALA 2010 9.G User Guide

Tire Pressure LightFor vehicles with a tire pressure monitoring system,
this light comes on briefly when the engine is started.
It provides information about tire pressures and the
Tire Pressure Monitoring System.When the Light is On SteadyThis indicates that one or more of the tires are
significantly underinflated.
A tire pressure message in the Driver Information
Center (DIC), can accompany the light. SeeDriver
Information Center (DIC) on page 4-37for more
information. Stop and check the tires as soon as it is safe
to do so. If underinflated, inflate to the proper pressure.
SeeInflation - Tire Pressure on page 6-59for more
information.
When the Light Flashes First and Then is
On SteadyThis indicates that there may be a problem with the Tire
Pressure Monitor System. The light flashes for about
a minute and stays on steady for the remainder of
the ignition cycle. This sequence repeats with every
ignition cycle. SeeTire Pressure Monitor Operation
on page 6-62for more information.Malfunction Indicator LampCheck Engine LightA computer system called OBD II (On-Board
Diagnostics-Second Generation) monitors operation
of the fuel, ignition, and emission control systems.
It ensures that emissions are at acceptable levels
for the life of the vehicle, helping to produce a cleaner
environment.
This light should come on
when the ignition is on, but
the engine is not running,
as a check to show it
is working. If it does not,
have the vehicle serviced
by your dealer/retailer.
4-31

This light comes on briefly while starting the engine.
If it does not, have the vehicle serviced by your
dealer/retailer. If the system is working normally the
indicator light then goes off.
If the light comes on and stays on, it means that oil is
not flowing through the engine properly. The vehicle
could be low on oil and it might have some other system
problem.Security Light
For information regarding
this light and the vehicle’s
security system, see
Content Theft-Deterrent
on page 3-17.
Fog Lamp Light
The fog lamp light comes
on when the fog lamps are
in use.
The light goes out when the fog lamps are turned off.
SeeFog Lamps on page 4-11for more information.
Cruise Control Light
The cruise control light
comes on whenever the
cruise control is set.
The light goes out when the cruise control is turned off.
SeeCruise Control on page 4-6for more information.
4-35

Driver Information Center (DIC)Your vehicle has a Driver Information Center (DIC).
All messages will appear in the DIC display located
below the speedometer in the instrument panel cluster.
The DIC buttons are located on the instrument panel,
to the right of the instrument panel cluster.
The DIC comes on when the ignition is on. After a short
delay, the DIC will display the information that was
last displayed before the engine was turned off.
The DIC displays trip, fuel, and vehicle system
information, and warning messages if a system problem
is detected. The bottom line of the DIC shows the shift
lever position indicator. SeeAutomatic Transmission
Operation on page 3-24for more information.
If your vehicle has these features, the DIC also displays
the compass direction and the outside air temperature
when viewing the trip and fuel information. The compass
direction appears on the top right corner of the DIC
display. The outside air temperature automatically
appears in the bottom right corner of the DIC display.
If there is a problem with the system that controls the
temperature display, the numbers will be replaced with
dashes. If this occurs, have the vehicle serviced by your
dealer/retailer.
The DIC also allows some features to be customized.
SeeDIC Vehicle Customization on page 4-51for
more information.
DIC Operation and DisplaysThe DIC has different displays which can be accessed
by pressing the DIC buttons located on the instrument
panel, to the right of the instrument panel cluster.DIC Buttons
The buttons are the
trip/fuel, vehicle
information, customization,
and set/reset buttons.
The button functions are
detailed in the following
pages.
3
(Trip/Fuel):Press this button to display the
odometer, trip odometers, fuel range, average economy,
instantaneous economy, Active Fuel Management™
indicator on vehicles with this feature, and average
speed.
4-37

Gasoline OctaneUse regular unleaded gasoline with a posted octane
rating of 87 or higher. If the octane rating is less than 87,
an audible knocking noise, commonly referred to as spark
knock, might be heard when driving. If this occurs, use a
gasoline rated at 87 octane or higher as soon as possible.
If heavy knocking is heard when using gasoline rated at
87 octane or higher, the engine needs service.Gasoline SpecificationsAt a minimum, gasoline should meet ASTM specification
D 4814 in the United States or CAN/CGSB-3.5 or 3.511 in
Canada. Some gasolines contain an octane-enhancing
additive called methylcyclopentadienyl manganese
tricarbonyl (MMT). We recommend against the use of
gasolines containing MMT. SeeAdditives on page 6-7
for additional information.
California FuelIf the vehicle is certified to meet California Emissions
Standards, it is designed to operate on fuels that meet
California specifications. See the underhood emission
control label. If this fuel is not available in states adopting
California emissions standards, the vehicle will operate
satisfactorily on fuels meeting federal specifications, but
emission control system performance might be affected.
The malfunction indicator lamp could turn on and the
vehicle might fail a smog-check test. SeeMalfunction
Indicator Lamp on page 4-31. If this occurs, return to your
authorized dealer/retailer for diagnosis. If it is determined
that the condition is caused by the type of fuel used,
repairs might not be covered by the vehicle warranty.
6-6

AdditivesTo provide cleaner air, all gasolines in the United States
are now required to contain additives that help prevent
engine and fuel system deposits from forming, allowing
the emission control system to work properly. In most
cases, nothing should have to be added to the fuel.
However, some gasolines contain only the minimum
amount of additive required to meet U.S. Environmental
Protection Agency regulations. To help keep fuel injectors
and intake valves clean, or if the vehicle experiences
problems due to dirty injectors or valves, look for gasoline
that is advertised as TOP TIER Detergent Gasoline.
For customers who do not use TOP TIER Detergent
Gasoline regularly, one bottle of GM Fuel System
Treatment PLUS, added to the fuel tank at every engine
oil change, can help clean deposits from fuel injectors
and intake valves. GM Fuel System Treatment PLUS
is the only gasoline additive recommended by
General Motors.
Also, your dealer/retailer has additives that will help
correct and prevent most deposit-related problems.Gasolines containing oxygenates, such as ethers and
ethanol, and reformulated gasolines might be available in
your area. We recommend that you use these gasolines,
if they comply with the specifications described earlier.
However, E85 (85% ethanol) and other fuels containing
more than 10% ethanol must not be used in vehicles that
were not designed for those fuels.
Notice:This vehicle was not designed for fuel that
contains methanol. Do not use fuel containing
methanol. It can corrode metal parts in the fuel
system and also damage plastic and rubber parts.
That damage would not be covered under the
vehicle warranty.
Some gasolines that are not reformulated for low
emissions can contain an octane-enhancing additive
called methylcyclopentadienyl manganese tricarbonyl
(MMT); ask the attendant where you buy gasoline
whether the fuel contains MMT. We recommend against
the use of such gasolines. Fuels containing MMT can
reduce the life of spark plugs and the performance
of the emission control system could be affected.
The malfunction indicator lamp might turn on. If this
occurs, return to your dealer/retailer for service.
6-7

Fuel E85 (85% Ethanol)The 8th digit of the Vehicle Identification Number (VIN)
shows the code letter or number that identifies the
vehicle’s engine. The VIN is at the top left of the
instrument panel. SeeVehicle Identification Number
(VIN) on page 6-95.
If the vehicle has the 3.5L V6 engine (VIN Code K)
or the 3.9L V6 engine (VIN Code M), you can use either
unleaded gasoline or ethanol fuel containing up to
85% ethanol (E85). SeeFuel on page 6-5. In all other
engines, use only the unleaded gasoline described
underGasoline Octane on page 6-6.
Only vehicles that have the 3.5L V6 engine (VIN Code K)
or the 3.9L V6 engine (VIN Code M) can use 85% ethanol
fuel (E85). We encourage the use of E85 in vehicles
that are designed to use it. The ethanol in E85 is a
“renewable” fuel, meaning it is made from renewable
sources such as corn and other crops.
Many service stations will not have an 85% ethanol
fuel (E85) pump available. The U.S. Department
of Energy has an alternative fuels website
(www.eere.energy.gov/afdc/infrastructure/locator.html)
that can help you find E85 fuel. Those stations that
do have E85 should have a label indicating ethanol
content. Do not use the fuel if the ethanol content
is greater than 85%.At a minimum, E85 should meet ASTM Specification
D 5798. By definition, this means that fuel labeled E85
will have an ethanol content between 70% and 85%.
Filling the fuel tank with fuel mixtures that do not meet
ASTM specifications can affect driveability and could
cause the malfunction indicator lamp to come on.
To ensure quick starts in the wintertime, the E85 fuel
must be formulated properly for your climate according to
ASTM specification D 5798. If you have trouble starting
on E85, it could be because the E85 fuel is not properly
formulated for your climate. If this happens, switching to
gasoline or adding gasoline to the fuel tank can improve
starting. For good starting and heater efficiency below
32°F (0°C), the fuel mix in the fuel tank should contain
no more than 70% ethanol. It is best not to alternate
repeatedly between gasoline and E85. If you do switch
fuels, it is recommended that you add as much fuel as
possible — do not add less than three gallons (11 L)
when refueling. You should drive the vehicle immediately
after refueling for at least seven miles (11 km) to allow the
vehicle to adapt to the change in ethanol concentration.
6-8

4. Then fill the coolant recovery tank to the
COLD FILL line.
5. Install the coolant recovery tank cap and the
pressure cap. After a day or two of driving, when the
engine is cold, check the coolant level in the recovery
tank. If it is low, refill it to the COLD FILL line.If the coolant in the recovery tank is constantly low,
you should have a dealer/retailer service department
inspect the vehicle for leaks.
Notice:If the pressure cap is not tightly installed,
coolant loss and possible engine damage may occur.
Be sure the cap is properly and tightly secured.
Engine OverheatingThe vehicle has several indicators to warn of engine
overheating.
There is a coolant temperature gage and a warning light
on the instrument panel that indicate an overheated
engine condition. SeeEngine Coolant Temperature
Gage on page 4-30Engine Coolant Temperature Gage
andEngine Coolant Temperature Warning Light on
page 4-30Engine Coolant Temperature Warning Light.
6-29

Lights (cont.)
Security .....................................................4-35
Tire Pressure . . ............................................4-31
Traction Control System (TCS) Warning..........4-28
Loading Your Vehicle.......................................5-20
Locks
Automatic Door Lock....................................3-10
Delayed Locking..........................................3-10
Door . . . ........................................................ 3-9
Lockout Protection.......................................3-12
Power Door . . . . ............................................3-10
Programmable Automatic Door Unlock............3-11
Rear Door Security Locks . . . . . ........................3-11
Loss of Control...............................................5-11
Lower Anchors and Tethers for Children . ............2-43
Lumbar
Manual Controls............................................ 2-5
M
Maintenance Schedule
Maintenance Record....................................7-13
Maintenance Replacement Parts....................7-11
Owner Checks and Services........................... 7-8
Recommended Fluids and Lubricants . ............7-10
Scheduled Maintenance................................. 7-3
Malfunction Indicator Lamp...............................4-31
Manual Lumbar Controls.................................... 2-5Manual Seats................................................... 2-4
Map Lamps....................................................4-13
Message
DIC Warnings and Messages........................4-44
Mirrors
Automatic Dimming Rearview........................3-33
Manual Rearview.........................................3-33
Outside Convex Mirror.................................3-34
Outside Heated Mirrors................................3-34
Outside Power Mirrors..................................3-34
MP3 .............................................................4-68
N
Navigation System, Privacy..............................8-20
Net, Convenience...........................................3-42
New Vehicle Break-In......................................3-19
O
Odometer......................................................4-23
Off-Road
Recovery....................................................5-11
Oil
Engine.......................................................6-15
Engine Oil Life System.................................6-18
Pressure Light.............................................4-34
8

Older Children, Restraints................................2-32
Online Owner Center........................................ 8-5
Operation, Universal Home Remote System........3-35
Outlet Adjustment............................................4-20
Outlets
Accessory Power.........................................4-15
Outside
Convex Mirror.............................................3-34
Heated Mirrors............................................3-34
Power Mirrors.............................................3-34
Overheated Engine Protection Operating Mode . . . 6-32
Owner Checks and Services . . ............................ 7-8
Owners, Canadian.............................................. iii
P
Paint, Damage...............................................6-94
Parade Dimming.............................................4-13
Park
Shifting Into................................................3-28
Shifting Out of............................................3-29
Parking
Brake . . . . . ...................................................3-27
Over Things That Burn . ................................3-30
Passenger Airbag Status Indicator.....................4-25Passenger Compartment Air Filter .....................4-20
Passenger Sensing System..............................2-66
Passing.........................................................5-11
PASS-Key
®
III+ Electronic Immobilizer...............3-18
PASS-Key
®
III+ Electronic Immobilizer
Operation...................................................3-18
Perchlorate Materials Requirements,
California..................................................... 6-4
Phone
Bluetooth®
..................................................4-74
Power
Door Locks.................................................3-10
Electrical System.........................................6-96
Retained Accessory (RAP)............................3-21
Seat . . .......................................................... 2-5
Steering Fluid.............................................6-32
Windows....................................................3-15
Pregnancy, Using Safety Belts..........................2-30
Privacy..........................................................8-18
Navigation System.......................................8-20
Radio Frequency Identification (RFID).............8-20
Program
Courtesy Transportation................................8-11
Programmable Automatic Door Unlock...............3-11
Proposition 65 Warning, California....................... 6-4
9

Tires (cont.)
Storing a Flat or Spare Tire and Tools............6-83
Terminology and Definitions...........................6-56
Uniform Tire Quality Grading.........................6-70
Wheel Alignment and Tire Balance.................6-71
Wheel Replacement.....................................6-71
When It Is Time for New Tires......................6-67
Towing
Recreational Vehicle.....................................5-26
Towing a Trailer..........................................5-28
Your Vehicle...............................................5-26
Traction
Control System (TCS).................................... 5-7
Control System Warning Light .......................4-28
Transmission
Fluid, Automatic...........................................6-22
Transmission Operation, Automatic . . ..................3-24
Transportation Program, Courtesy......................8-11
Trunk............................................................3-12
Turn and Lane-Change Signals.......................... 4-4
Turn Signal/Multifunction Lever........................... 4-4
U
Uniform Tire Quality Grading............................6-70
Universal Home Remote System .......................3-35
Operation ...................................................3-35
V
Vehicle
Control........................................................ 5-3
Loading......................................................5-20
Remote Start................................................ 3-7
Running While Parked..................................3-32
Symbols......................................................... iv
Vehicle Customization, DIC..............................4-51
Vehicle Data Recording and Privacy . . . ...............8-18
Vehicle Identification
Number (VIN).............................................6-95
Service Parts Identification Label . . .................6-95
Ventilation Adjustment......................................4-20
Visors...........................................................3-16
W
Warning Lights, Gages, and Indicators...............4-21
Warnings
DIC Warnings and Messages........................4-44
Hazard Flashers............................................ 4-3
Safety and Symbols......................................... iv
Wheels
Alignment and Tire Balance..........................6-71
Different Size..............................................6-69
Replacement...............................................6-71
13