2007 CHEVROLET AVALANCHE fuel cap

Service and Appearance Care
.................. 429
Service
................................................. 432
Fuel
...................................................... 435
Checking Things Under the Hood
......... 442
Rear Axle
............................................. 482
Four-Wheel Drive
.................................. 483
Front Axle
............................................ 484
Headlamp Aiming
................................. 485
Bulb Replacement
................................ 488
Windshield Wiper Blade Replacement
.... 491
Tires
..................................................... 492
Appearance Care
.................................. 537Vehicle Identication
............................. 546
Electrical System
.................................. 547
Capacities and Specications
................ 556
Maintenance Schedule
.............................. 559
Maintenance Schedule
.......................... 560
Customer Assistance Information
............. 581
Customer Assistance and Information
..... 582
Reporting Safety Defects
...................... 599
Index
.......................................................... 603
2

If the light continues to ash, when it is safe to
do so, stop the vehicle. Find a safe place to
park your vehicle. Turn the key off, wait at least
10 seconds and restart the engine. If the light
remains on steady, see “If the Light Is On Steady”
following. If the light is still ashing, follow the
previous steps, and see your dealer for service
as soon as possible.
If the Light Is On Steady
You may be able to correct the emission system
malfunction by considering the following:
Did you recently put fuel into your vehicle?
If so, reinstall the fuel cap, making sure to fully
install the cap. SeeFilling the Tank on page 440.
The diagnostic system can determine if the
fuel cap has been left off or improperly installed.
A loose or missing fuel cap will allow fuel to
evaporate into the atmosphere. A few driving
trips with the cap properly installed should turn
the light off.Did you just drive through a deep puddle of water?
If so, your electrical system may be wet. The
condition will usually be corrected when the
electrical system dries out. A few driving trips
should turn the light off.
Have you recently changed brands of fuel?
If so, be sure to fuel your vehicle with quality fuel.
SeeGasoline Octane on page 436. Poor fuel
quality will cause your engine not to run as
efficiently as designed. You may notice this as
stalling after start-up, stalling when you put
the vehicle into gear, misring, hesitation on
acceleration, or stumbling on acceleration.
(These conditions may go away once the
engine is warmed up.) This will be detected by
the system and cause the light to turn on.
If you experience one or more of these conditions,
change the fuel brand you use. It will require at least
one full tank of the proper fuel to turn the light off.
If none of the above steps have made the light turn
off, your dealer can check the vehicle. Your dealer
has the proper test equipment and diagnostic tools
to x any mechanical or electrical problems that
may have developed.
252

When the fuel tank is low, the FUEL LEVEL LOW
message will appear in the Driver Information
Center (DIC). SeeDIC Warnings and Messages
on page 267for more information.
Here are some situations you may experience with
your fuel gage. None of these indicate a problem
with the fuel gage.
At the gas station, the fuel pump shuts off
before the gage reads full.
It takes a little more or less fuel to ll up than
the fuel 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 tank’s capacity to ll the tank.
The gage goes back to empty when you turn
off the ignition.
Driver Information Center (DIC)
Your vehicle has a Driver Information Center (DIC).
The DIC displays information about your vehicle.
It also displays warning messages if a system
problem is detected.
All messages will appear in the DIC display
located below the tachometer in 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.
If your vehicle has DIC buttons, see “DIC
Operation and Displays (With DIC Buttons)”
later in this section andDIC Vehicle
Customization (With DIC Buttons) on page 278
for the displays available.
If your vehicle does not have DIC buttons, see
“DIC Operation and Displays (Without DIC
Buttons)” later in this section for the displays
available.
257

TIGHTEN GAS CAP
This message may display along with the check
engine light on the instrument panel cluster if
the vehicle’s fuel cap is not tightened properly.
SeeMalfunction Indicator Lamp on page 250.
Reinstall the fuel cap fully. SeeFilling the Tank
on page 440. 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
this light and message off.
TIRE LEARNING ACTIVE
If your vehicle has a Tire Pressure Monitor (TPM)
system, this message displays when the system
is re-learning the tire positions on your vehicle.
SeeDIC Operation and Displays (With DIC
Buttons) on page 258orDIC Operation and
Displays (Without DIC Buttons) on page 264for
more information. The tire positions must be
re-learned after rotating the tires or after replacing
a tire or sensor. SeeTire Inspection and
Rotation on page 506,Tire Pressure Monitor
System on page 501, andInation - Tire Pressure
on page 500for more information.
TRACTION CONTROL OFF
If your vehicle has StabiliTrak®, this message
displays when the Traction Control System (TCS)
is turned off. Adjust your driving accordingly.
SeeStabiliTrak
®System on page 359for more
information.
276

Item Description Total
AVehicle 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 specic information about your vehicle’s
capacity weight and seating positions. The
combined weight of the driver, passengers and
cargo should never exceed your vehicle’s
capacity weight.
Certication/Tire Label
A vehicle specic Certication/Tire label is attached
to the rear edge of the driver’s door. The label
shows the size of your vehicle’s original tires and
the ination pressures needed to obtain the gross
weight capacity of your vehicle. This is called
Gross Vehicle Weight Rating (GVWR). The GVWR
includes the weight of the vehicle, all occupants,
fuel and cargo.
Example 3
405

Towing a Trailer
Do not tow a trailer during break-in. SeeNew
Vehicle Break-In on page 122for more information.
{CAUTION:
If you do not use the correct equipment
and drive properly, you can lose control
when you pull a trailer. For example, if the
trailer is too heavy, the brakes may not
work well — or even at all. You and your
passengers could be seriously injured.
Pull a trailer only if you have followed all
the steps in this section. Ask your dealer
for advice and information about towing
a trailer with your vehicle.Notice:Pulling a trailer improperly can
damage your vehicle and result in costly repairs
not covered by your warranty. To pull a trailer
correctly, follow the advice in this part, and
see your dealer for important information about
towing a trailer with your vehicle.
To identify the trailering capacity of your vehicle,
you should read the information in “Weight of
the Trailer” that appears later in this section.
Trailering is different than just driving your 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.
That’s the reason for this part. In it are many
time-tested, important trailering tips and safety
rules. Many of these are important for your safety
and that of your passengers. So please read
this section carefully before you pull a trailer.
414

Service........................................................ 432
Accessories and Modications................... 433
California Proposition 65 Warning.............. 433
Doing Your Own Service Work.................. 434
Adding Equipment to the Outside
of Your Vehicle...................................... 435
Fuel............................................................. 435
Gasoline Octane........................................ 436
Gasoline Specications.............................. 436
California Fuel........................................... 436
Additives................................................... 437
Fuel E85 (85% Ethanol)............................ 438
Fuels in Foreign Countries........................ 439
Filling the Tank......................................... 440
Filling a Portable Fuel Container............... 442
Checking Things Under the Hood.............. 442
Hood Release........................................... 443
Engine Compartment Overview.................. 444
Engine Oil................................................. 446
Engine Oil Life System.............................. 449Engine Air Cleaner/Filter............................ 451
Automatic Transmission Fluid.................... 454
Engine Coolant.......................................... 457
Coolant Surge Tank Pressure Cap............ 460
Engine Overheating................................... 460
Overheated Engine Protection
Operating Mode..................................... 463
Cooling System......................................... 464
Engine Fan Noise..................................... 469
Power Steering Fluid ................................. 469
Windshield Washer Fluid........................... 470
Brakes...................................................... 472
Battery...................................................... 475
Jump Starting............................................ 476
Rear Axle.................................................... 482
Four-Wheel Drive........................................ 483
Front Axle................................................... 484
Headlamp Aiming........................................ 485
Section 5 Service and Appearance Care
429

Filling the Tank
{CAUTION:
Fuel vapor burns violently and a fuel re
can cause bad injuries. To help avoid
injuries to you and others, read and follow
all the instructions on the pump island.
Turn off your engine when you are
refueling. Do not smoke if you are near
fuel or refueling your vehicle. Do not use
cellular phones. Keep sparks, ames,
and smoking materials away from fuel.
Do not leave the fuel pump unattended
when refueling your vehicle. This is
against the law in some places. Do not
re-enter 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’s side of the vehicle.
If the vehicle has E85 fuel capability, a yellow cap
with the words “E85 or gasoline” can be seen.
To remove the fuel cap, turn it slowly
counterclockwise. It will require more effort to
turn the fuel cap on the last turn as you loosen it.
440