2006 CHEVROLET IMPALA fuel

Bias Ply Tire:A pneumatic tire in which the plies are
laid at alternate angles less than 90 degrees to the
centerline of the tread.
Cold Tire Pressure:The amount of air pressure in a
tire, measured in pounds per square inch (psi) or
kilopascals (kPa) before a tire has built up heat from
driving. SeeInation - Tire Pressure on page 5-60.
Curb Weight:This means the weight of a motor vehicle
with standard and optional equipment including the
maximum capacity of fuel, oil, and coolant, but without
passengers and cargo.
DOT Markings:A code molded into the sidewall of a
tire signifying that the tire is in compliance with the
U.S. Department of Transportation (DOT) motor vehicle
safety standards. The DOT code includes the Tire
Identication Number (TIN), an alphanumeric designator
which can also identify the tire manufacturer, production
plant, brand, and date of production.
GVWR:Gross Vehicle Weight Rating. SeeLoading
Your Vehicle on page 4-29.
GAWR FRT:Gross Axle Weight Rating for the front
axle. SeeLoading Your Vehicle on page 4-29.GAWR RR:Gross Axle Weight Rating for the rear axle.
SeeLoading Your Vehicle on page 4-29.
Intended Outboard Sidewall:The side of an
asymmetrical tire, that must always face outward when
mounted on a vehicle.
Kilopascal (kPa):The metric unit for air pressure.
Light Truck (LT-Metric) Tire:A tire used on light duty
trucks and some multipurpose passenger vehicles.
Load Index:An assigned number ranging from 1 to 279
that corresponds to the load carrying capacity of a tire.
Maximum Ination Pressure:The maximum air
pressure to which a cold tire may be inated. The
maximum air pressure is molded onto the sidewall.
Maximum Load Rating:The load rating for a tire at the
maximum permissible ination pressure for that tire.
Maximum Loaded Vehicle Weight:The sum of curb
weight, accessory weight, vehicle capacity weight,
and production options weight.
Normal Occupant Weight:The number of occupants a
vehicle is designed to seat multiplied by 150 lbs (68 kg).
SeeLoading Your Vehicle on page 4-29.
Occupant Distribution:Designated seating positions.
5-58

Ination - Tire Pressure
Tires need the correct amount of air pressure to
operate effectively.
Notice:Do not let anyone tell you that
under-ination or over-ination is all right. It is not.
If your tires do not have enough air (under-ination),
you can get the following:
Too much exing
Too much heat
Tire overloading
Premature or irregular wear
Poor handling
Reduced fuel economy
If your tires have too much air (over-ination),
you can get the following:
Unusual wear
Poor handling
Rough ride
Needless damage from road hazardsA Tire and Loading Information label is attached to the
vehicle’s center pillar (B-pillar). This label shows
your vehicle’s original equipment tires and the correct
ination pressures for your tires when they are cold. The
recommended cold tire ination pressure, shown on
the label, is the minimum amount of air pressure needed
to support your vehicle’s maximum load carrying
capacity.
For additional information regarding how much weight
your vehicle can carry, and an example of the Tire
and Loading Information label, seeLoading Your Vehicle
on page 4-29. How you load your vehicle affects
vehicle handling and ride comfort. Never load your
vehicle with more weight than it was designed to carry.
When to Check
Check your tires once a month or more. Do not forget
to check the compact spare tire, it should be at
60 psi (420 kPa). For additional information regarding
the compact spare tire, seeCompact Spare Tire
on page 5-83.
How to Check
Use a good quality pocket-type gage to check tire
pressure. You cannot tell if your tires are properly
inated simply by looking at them. Radial tires may look
properly inated even when they are under-inated.
5-60

failure. Under-ination also reduces fuel efficiency and
tire tread life, and may affect the vehicle’s handling
and stopping ability.
Please note that the TPMS is not a substitute for proper
tire maintenance, and it is the driver’s responsibility to
maintain correct tire pressure, even if under-ination has
not reached the level to trigger illumination of the
TPMS low tire pressure telltale.
When a low tire pressure condition is detected, the
TPMS will illuminate the low tire pressure warning
symbol on the instrument panel cluster, and at the same
time a message to check the pressure in a specic
tire will appear on the Driver Information Center (DIC)
display. The low tire pressure warning symbol on
the instrument panel cluster and the check tire pressure
message will appear at each ignition cycle until the
tires are inated to the correct ination pressure. Using
the DIC, tire pressure levels can be viewed by the
driver. For additional information and details about the
DIC operation and displays seeDIC Operation and
Displays on page 3-39andDIC Warnings and Messages
on page 3-45.
The tire pressure warning light may come on in cool
weather when the vehicle is rst started, and then
turn off as you start to drive. This may be an early
indicator that the air pressure in the tire(s) are getting
low and need to be inated to the proper pressure.A tire and Loading Information label, attached to your
vehicle, shows the size of your vehicle’s original
equipment tires and the correct ination pressure for
your vehicle’s tires when they are cold. SeeLoading
Your Vehicle on page 4-29, for an example of the
tire information label and its location on your vehicle.
Also seeInation - Tire Pressure on page 5-60.
Your vehicle’s TPMS system can warn you about a low
tire pressure condition but it does not replace normal
tire maintenance. SeeTire Inspection and Rotation
on page 5-64andTires on page 5-54.
Notice:Do not use a tire sealant if your vehicle
has Tire Pressure Monitors. The liquid sealant can
damage the tire pressure monitor sensors.
The TPMS will not function properly if one or more of
the TPMS sensors are missing or inoperable. If the
system detects a missing or inoperable sensor, an error
message SERVICE TIRE MONITOR SYSTEM will be
shown on the DIC display. If you have replaced a
tire/wheel assembly without transferring the TPMS
sensors, the error message will be displayed. Once you
re-install the TPMS sensors, the error message
should go off. See your GM dealer for service if all
TPMS sensors are installed and the error message
comes on and stays on.
5-62

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 warranty.
Finish Damage
Any stone chips, fractures or deep scratches in the
nish should be repaired right away. Bare metal
will corrode quickly and may develop into major repair
expense.
Minor chips and scratches can be repaired with touch-up
materials available from your dealer. Larger areas of
nish damage can be corrected in your dealer’s
body and paint shop.
Underbody Maintenance
Chemicals used for ice and snow removal and dust
control can collect on the underbody. If these are not
removed, corrosion and rust can develop on the
underbody parts such as fuel lines, frame, oor pan,
and exhaust system even though they have corrosion
protection.
At least every spring, ush these materials from the
underbody with plain water. Clean any areas where mud
and debris can collect. Dirt packed in close areas of
the frame should be loosened before being ushed.
Your dealer or an underbody car washing system can
do this for you.
Chemical Paint Spotting
Some weather and atmospheric conditions can create a
chemical fallout. Airborne pollutants can fall upon and
attack painted surfaces on the vehicle. This damage can
take two forms: blotchy, ring-shaped discolorations, and
small, irregular dark spots etched into the paint surface.
Although no defect in the paint job causes this, GM will
repair, at no charge to the owner, the surfaces of
new vehicles damaged by this fallout condition within
12 months or 12,000 miles (20 000 km) of purchase,
whichever occurs rst.
5-90

Fuses Usage
AUX PWR Auxiliary Power
BCM Body Control Module
CHMSL/
BACKUPCenter High-Mounted Stoplamp,
Back-up Lamps
DISPLAY Display
ETC/ECMElectronic Throttle Control,
Engine Control Module
INJ 1 Injector 1
EMISSIONS 1 Emissions 1
INJ 2 Injector 2
EMISSIONS 2 Emissions 2
RT SPOT Right Spot
LT SPOT Left Spot
HDLP MDL Headlamp Module
DRL 2 Daytime Running Lamps 2
FAN 2 Cooling Fan 2
FUEL/PUMP Fuel PumpFuses Usage
WPR Wiper
LT LO BEAM Driver’s Side Low Beam
RT LO BEAM Passenger’s Side Low Beam
LT HI BEAM Driver’s Side High Beam
RT HI BEAM Passenger’s Side High Beam
Relay Usage
STRTR Starter
REAR DEFOG Rear Defogger
FAN 1 Cooling Fan 1
FAN 2 Cooling Fan 2
A/C CMPRSR Air Conditioning Compressor
FAN 3 Cooling Fan 3
FUEL/PUMP Fuel Pump
PWR/TRN Powertrain
5-98

Capacities and Specications
The following approximate capacities are given in English and metric conversions. SeeRecommended Fluids and
Lubricants on page 6-12for more information.
ApplicationCapacities
English Metric
Air Conditioning Refrigerant R134a
3.5L V6 Engine, 3.5L V6 Flexible Fuel and 3.9L V6 Engine 1.35 lb .61 kg
5.3L V8 Engine 1.21 lb .55 kg
Automatic Transaxle 7.6 qt 7.2 L
When draining/replacing converter, more uid may be needed.
Cooling System Including Reservoir
3.5L V6 Engine 12.2 qt 11.6 L
3.5L Flexible Fuel V6 Engine 12.2 qt 11.6 L
3.9L V6 Engine 12.2 qt 11.6 L
5.3L V8 Engine 12.8 qt 12.1 L
Engine Oil with Filter
3.5L V6 Engine 4.0 qt 3.8 L
3.5L Flexible Fuel V6 Engine 4.0 qt 3.8 L
3.9L V6 Engine 4.0 qt 3.8 L
5.3L V8 Engine 6.0 qt 5.7 L
5-99

ApplicationCapacities
English Metric
Fuel Tank 17.5 gal 66.2 L
Wheel Nut Torque 100 lb ft 140 Nm
All capacities are approximate. When adding, be sure to ll to the approximate level, as recommended in
this manual. Recheck uid level after lling.
Engine Specications
Engine VIN Code Transaxle Spark Plug Gap
3.5L V6 N Automatic 0.040 inches (1.01 mm)
3.5L Flexible Fuel V6 K Automatic 0.040 inches (1.01 mm)
3.9L V6 1 Automatic 0.040 inches (1.01 mm)
5.3L V8 C Automatic 0.040 inches (1.01 mm)
5-100

Maintenance Schedule......................................6-2
Introduction...................................................6-2
Maintenance Requirements..............................6-2
Your Vehicle and the Environment....................6-2
Using the Maintenance Schedule......................6-2
Scheduled Maintenance...................................6-4
Additional Required Services............................6-6
Maintenance Footnotes...................................6-7Owner Checks and Services............................6-8
At Each Fuel Fill............................................6-9
At Least Once a Month...................................6-9
At Least Once a Year...................................6-10
Recommended Fluids and Lubricants...............6-12
Normal Maintenance Replacement Parts..........6-13
Maintenance Record.....................................6-14
Section 6 Maintenance Schedule
6-1