2010 CHEVROLET IMPALA fuel cap

Tire Pressure MonitorThis vehicle may have a Tire Pressure Monitor
System (TPMS).
The Tire Pressure Monitor
alerts you when a
significant reduction in
pressure occurs in one or
more of the vehicle’s tires
by illuminating the low tire
pressure warning light on
the instrument cluster.
The warning light will remain on until the tire pressure
is corrected. The proper tire pressures for your
vehicle are listed on the Tire and Loading Information
label located on the driver side center pillar (B pillar).
SeeLoading the Vehicle on page 5-20.
You may notice during cooler conditions that the low tire
pressure warning light will appear when the vehicle is first
started and then turn off as you drive. This may be an
early indicator that your tire pressures are getting low
and the tires need to be inflated to the proper pressure.
Note:The Tire Pressure Monitor can alert you about low
tire pressure, but it does not replace normal monthly
tire maintenance. It is the driver’s responsibility to
maintain correct tire pressures.
SeeTire Pressure Monitor System on page 6-60and
Tire Pressure Monitor Operation on page 6-62.
Engine Oil Life SystemThe engine oil life system calculates engine oil life
based on vehicle use and displays a DIC message
when it is necessary to change the engine oil and filter.
The oil life system should be reset to 100% only
following an oil change.Resetting the Oil Life System1. Display the OIL LIFE REMAINING on the DIC.
2. Press and hold the SET/RESET button on the DIC
for more than five seconds. The oil life will change
to 100%.
SeeEngine Oil Life System on page 6-18.Fuel E85 (85% Ethanol)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.
Vehicles that have the 3.5L V6 engine (VIN Code K) or
the 3.9L V6 engine (VIN Code M) have a yellow fuel
cap and can use 85% ethanol fuel (E85). SeeFuel E85
(85% Ethanol) on page 6-8.
1-20

Light On Steady:An emission control system
malfunction has been detected on the vehicle.
Diagnosis and service might be required.
An emission system malfunction might be corrected by
doing the following:•
Make sure the fuel cap is fully installed. SeeFilling
the Tank on page 6-10. 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.
•
If the vehicle has been driven through a deep puddle
of water, the vehicle’s electrical system might be wet.
The condition is usually corrected when the electrical
system dries out. A few driving trips should turn the
light off.
•
Make sure to fuel the vehicle with quality fuel. Poor
fuel quality causes the engine not to run as efficiently
as designed and can 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.
If one or more of these conditions occurs, change the
fuel brand used. It will require at least one full tank of
the proper fuel to turn the light off.
SeeGasoline Octane on page 6-6.
If none of the above have made the light turn off, your
dealer/retailer can check the vehicle. The dealer/retailer
has the proper test equipment and diagnostic tools to
fix any mechanical or electrical problems that might have
developed.
4-33

Highbeam On Light
This light comes on when
the high-beam headlamps
are in use.
SeeHeadlamp High/Low-Beam Changer on page 4-5
for more information.
Fuel GageWhen the ignition is on, the fuel gage indicates about
how much fuel is left in the fuel tank.An arrow on the fuel gage indicates the side of the
vehicle the fuel door is on.
Here are four things that some owners ask about.
None of these show a problem with the fuel gage:
•
At the gas station, the gas pump shuts off before the
gage reads full.
•
It takes a little more or less fuel to fill up than the
gage indicated. For example, the gage may have
indicated the tank was half full, but it actually took a
little more or less than half the fuel tank’s capacity
to fill the tank.
•
The gage moves a little when while turning a corner
or speeding up.
•
The gage does not go back to empty when the
ignition is turned off.
United States
Canada
4-36

Item Description Total
AMaximum Vehicle
Capacity Weight for
Example 3=1,000 lbs
(453 kg)
BSubtract Occupant
Weight 200 lbs
(91 kg)×5=1,000 lbs
(453 kg)
CAvailable Cargo
Weight=0 lbs (0 kg)
Refer to your vehicle’s Tire and Loading
Information label for specific information about
your vehicle’s maximum vehicle capacity weightand seating positions. The combined weight of
the driver, passengers, and cargo should
never exceed your vehicle’s maximum vehicle
capacity weight.
Certification LabelA vehicle specific Certification label is found on
the rear edge of the driver door.
The label shows the gross weight capacity of your
vehicle, called the Gross Vehicle Weight Rating
(GVWR). The GVWR includes the weight of
the vehicle, all occupants, fuel, and cargo.
Example 3
5-24

6. Secure the vehicle to the dolly following the
manufacturer’s instructions.
7. Release the parking brake only after the vehicle
being towed is firmly attached to the towing
vehicle.
8. Turn the ignition to LOCK/OFF and remove the key.Towing a Trailer
{
WARNING:
The driver can lose control when pulling a trailer if
the correct equipment is not used or the vehicle is
not driven properly. For example, if the trailer is
too heavy, the brakes may not work well — or
even at all. The driver and passengers could be
seriously injured. The vehicle may also be
damaged; the resulting repairs would not be
covered by the vehicle warranty. Pull a trailer only
if all the steps in this section have been followed.
Ask your dealer/retailer for advice and information
about towing a trailer with the vehicle.Notice:Pulling a trailer improperly can damage the
vehicle and result in costly repairs not covered
by the vehicle warranty. To pull a trailer correctly,
follow the advice in this section and see your
dealer/retailer for important information about
towing a trailer with the vehicle.
The vehicle can tow a trailer if it is equipped with the
proper trailer towing equipment. To identify the trailering
capacity of the vehicle, read the information in “Weight of
the Trailer” that appears later in this section. Trailering is
different than just driving the vehicle by itself. Trailering
means changes in handling, acceleration, braking,
durability and fuel economy. Successful, safe trailering
takes correct equipment, and it has to be used properly.
The following information has many time-tested,
important trailering tips and safety rules. Many of these
are important for the safety of the driver and the
passengers. So please read this section carefully before
pulling a trailer.
Load-pulling components such as the engine,
transmission, axles, wheel assemblies and tires are
forced to work harder against the drag of the added
weight. The engine is required to operate at relatively
higher speeds and under greater loads, generating extra
heat. The trailer also adds considerably to wind
resistance, increasing the pulling requirements.
5-28

Filling the Tank
{
WARNING:
Fuel vapor burns violently and a fuel fire can
cause bad injuries. To help avoid injuries to you
and others, read and follow all the instructions on
the fuel pump island. Turn off the engine when
refueling. Do not smoke near fuel or when
refueling the vehicle. Do not use cellular phones.
Keep sparks, flames, and smoking materials away
from fuel. Do not leave the fuel pump unattended
when refueling the vehicle. This is against the law
in some places. Do not re-enter the vehicle while
pumping fuel. Keep children away from the fuel
pump; never let children pump fuel.The tethered fuel cap is located behind a hinged fuel
door on the driver side of the vehicle. If the vehicle has
E85 fuel capability, the fuel cap will be yellow and
state that E85 or gasoline can be used. SeeFuel E85
(85% Ethanol) on page 6-8.
To remove the fuel cap, turn it slowly counterclockwise.
While refueling, hang the tethered fuel cap on the
hook on the inside of the fuel door.
6-10

{
WARNING:
Fuel can spray out on you if you open the fuel cap
too quickly. If you spill fuel and then something
ignites it, you could be badly burned. This spray
can happen if the tank is nearly full, and is more
likely in hot weather. Open the fuel cap slowly and
wait for any hiss noise to stop. Then unscrew the
cap all the way.
Be careful not to spill fuel. Do not top off or overfill the
tank and wait a few seconds after you have finished
pumping before removing the nozzle. Clean fuel from
painted surfaces as soon as possible. SeeWashing
Your Vehicle on page 6-91.
When replacing the fuel cap, turn it clockwise until it
clicks. Make sure the cap is fully installed. The diagnostic
system can determine if the fuel cap has been left off or
improperly installed. This would allow fuel to evaporate
into the atmosphere. SeeMalfunction Indicator Lamp on
page 4-31.The TIGHTEN GAS CAP message displays on the
Driver Information Center (DIC) if the fuel cap is
not properly installed. SeeDIC Warnings and Messages
on page 4-44for more information.
{
WARNING:
If a fire starts while you are refueling, do not
remove the nozzle. Shut off the flow of fuel by
shutting off the pump or by notifying the station
attendant. Leave the area immediately.
Notice:If you need a new fuel cap, be sure to get
the right type. Your dealer/retailer can get one
for you. If you get the wrong type, it may not fit
properly. This may cause the malfunction indicator
lamp to light and may damage the fuel tank and
emissions system. SeeMalfunction Indicator Lamp
on page 4-31.
6-11

A. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” underWindshield Washer Fluid
on page 6-33.
B. Battery. SeeBattery on page 6-38.
C. Underhood Fuse Block. SeeUnderhood Fuse Block
on page 6-97.
D. Remote Positive (+) Terminal. SeeJump Starting on
page 6-39.
E. Coolant Recovery Tank. See “Checking Coolant”
underCooling System on page 6-24.
F. Pressure Cap. SeeCooling System on page 6-24.
G. Power Steering Fluid Cap. SeePower Steering Fluid
on page 6-32.
H. Engine Oil Fill Cap. See “When to Add Engine Oil”
underEngine Oil on page 6-15.
I. Engine Oil Dipstick. See “Checking Engine Oil”
underEngine Oil on page 6-15.
J. Automatic Transmission Fluid Dipstick (Out of View).
See “Checking the Fluid Level” underAutomatic
Transmission Fluid on page 6-22.
K. Brake Master Cylinder Reservoir. See “Brake Fluid”
underBrakes on page 6-35.
L. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 6-19.
Engine OilChecking Engine OilIt is a good idea to check the engine oil level at each
fuel fill. In order to get an accurate reading, the oil must
be warm and the vehicle must be on level ground.
The engine oil dipstick handle is a yellow loop.
SeeEngine Compartment Overview on page 6-14
for the location of the engine oil dipstick.
1. Turn off the engine and give the oil several minutes
to drain back into the oil pan. If this is not done, the
oil dipstick might not show the actual level.
2. Pull out the dipstick and clean it with a paper towel
or cloth, then push it back in all the way. Remove it
again, keeping the tip down, and check the level.
6-15