2007 CHEVROLET AVALANCHE four wheel drive

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

Keys.............................................................. 93
Remote Keyless Entry (RKE) System.......... 94
Remote Keyless Entry (RKE)
System Operation.................................... 95
Doors and Locks........................................ 102
Door Locks................................................ 102
Power Door Locks..................................... 103
Delayed Locking........................................ 103
Programmable Automatic Door Locks........ 103
Rear Door Security Locks......................... 104
Lockout Protection..................................... 104
Midgate
®................................................... 105
Tailgate..................................................... 115
Power Running Boards.............................. 115
Windows...................................................... 116
Power Windows........................................ 117
Sun Visors................................................ 118
Theft-Deterrent Systems............................. 118
Content Theft-Deterrent............................. 118
PASS-Key
®III+......................................... 120
PASS-Key®III+ Operation......................... 121Starting and Operating Your Vehicle........... 122
New Vehicle Break-In................................ 122
Ignition Positions....................................... 123
Retained Accessory Power (RAP)............. 124
Starting the Engine.................................... 124
Adjustable Throttle and Brake Pedal.......... 126
Engine Coolant Heater.............................. 126
Active Fuel Management™........................ 127
Automatic Transmission Operation............. 128
Tow/Haul Mode......................................... 131
Four-Wheel Drive...................................... 132
Parking Brake........................................... 138
Shifting Into Park (P) ................................. 139
Shifting Out of Park (P)............................. 141
Parking Over Things That Burn................. 142
Engine Exhaust......................................... 143
Running the Engine While Parked............. 144
Mirrors......................................................... 145
Automatic Dimming Rearview Mirror
with OnStar
®, Compass and
Temperature Display.............................. 145
Section 2 Features and Controls
91

{CAUTION:
If you have four-wheel drive, your vehicle
will be free to roll — even if your shift
lever is in PARK (P) — if your transfer
case is in NEUTRAL. So, be sure the
transfer case is in a drive gear, two-wheel
high, four-wheel high or four-wheel
low — not in NEUTRAL. SeeShifting
Into Park (P) on page 139.
REVERSE (R):Use this gear to back up.
Notice:Shifting to REVERSE (R) while your
vehicle is moving forward could damage
the transmission. The repairs would not
be covered by your warranty. Shift to
REVERSE (R) only after your vehicle is
stopped.
To rock your vehicle back and forth to get out
of snow, ice, or sand without damaging your
transmission, seeIf Your Vehicle is Stuck in
Sand, Mud, Ice, or Snow on page 400.NEUTRAL (N):In this position, your engine does
not connect with the wheels. To restart when
you are already moving, use NEUTRAL (N) only.
Also, use NEUTRAL (N) when your two-wheel
drive vehicle is being towed.
{CAUTION:
Shifting into a drive gear while your
engine is running at high speed is
dangerous. Unless your foot is rmly
on the brake pedal, your vehicle could
move very rapidly. You could lose
control and hit people or objects.
Do not shift into a drive gear while your
engine is running at high speed.
Notice:Shifting out of PARK (P) or
NEUTRAL (N) with the engine running at
high speed may damage the transmission.
The repairs would not be covered by your
warranty. Be sure the engine is not running
at high speed when shifting your vehicle.
129

Four-Wheel Drive
If your vehicle has four-wheel drive, you can send
your engine’s driving power to all four wheels
for extra traction. Read the part that follows before
using four-wheel drive.
Notice:Driving on clean, dry pavement in
Four-Wheel-Drive High or Four-Wheel-Drive
Low for an extended period of time may cause
premature wear on your vehicle’s powertrain.
Do not drive on clean, dry pavement in
Four-Wheel-Drive High or Four-Wheel-Drive
Low for extended periods of time.
While driving on clean dry pavement and during
tight turns, you may experience a vibration in
the steering system.
Front Axle Locking Feature
The front axle locks and unlocks automatically
when you shift the transfer case. Some delay for
the axle to lock or unlock is normal.
Automatic Transfer Case
The transfer case
knob is located to the
left of the instrument
panel cluster.
Your vehicle has Four Wheel Drive with
StabiliTrak
®. For information on StabiliTrak®,
seeStabiliTrak®System on page 359.
Use this dial to shift into and out of four-wheel drive.
132

You can choose among ve driving settings:
Indicator lights in the switches show you which
setting you are in. The indicator lights will come on
briey when you turn on the ignition and the last
chosen setting will stay on. If the lights do not come
on, you should take your vehicle in for service. An
indicator light will ash while shifting. Fast ashing
means the conditions were not met to make the
desired shift, typically the vehicle was going too
fast, the automatic transmission was not in neutral.
or the clutch pedal was not fully pressed. Slow
ashing means the shift is in progress. It will stay on
when the shift is completed. If for some reason the
transfer case cannot make a requested shift, it will
return to the last chosen setting.
2
m(Two-Wheel Drive High):This setting is
used for driving in most street and highway
situations. Your front axle is not engaged in
two-wheel drive. This setting also provides the
best fuel economy.
AUTO (Automatic Four-Wheel Drive):This
setting is ideal for use when road surface traction
conditions are variable. When driving your
vehicle in AUTO, the front axle is engaged,but the vehicle’s power is primarily sent to the
rear wheels. When the vehicle’s software
determines a need for more traction, the system
will transfer more power to the front wheels.
Driving in this mode results in slightly lower fuel
economy than Two-Wheel Drive High.
4
m(Four-Wheel Drive High):Use the
four-wheel high position when you need extra
traction, such as on snowy or icy roads or in most
off-road situations. This setting also engages
your front axle to help drive your vehicle. This is
the best setting to use when plowing snow.
4
n(Four-Wheel Drive Low):This setting also
engages your front axle and delivers extra torque.
You may never need this setting. It sends maximum
power to all four wheels. You might choose
Four-Wheel Drive Low if you are driving off-road
in deep sand, deep mud, deep snow, and while
climbing or descending steep hills. StabiliTrak
®
will not engage in this mode. SeeStabiliTrak®
System on page 359for more information.
133

{CAUTION:
Shifting the transfer case to NEUTRAL
can cause your vehicle to roll even if the
transmission is in PARK (P). You or
someone else could be seriously injured.
Be sure to set the parking brake before
placing the transfer case in NEUTRAL.
SeeParking Brake on page 138.
NEUTRAL (N):Shift the vehicle’s transfer case to
NEUTRAL only when towing your vehicle. See
Recreational Vehicle Towing on page 408or
Towing Your Vehicle on page 408for more
information.
If the SERVICE 4 WHEEL DRIVE message stays
on, you should take your vehicle to your dealer
for service. See “SERVICE 4 WHEEL DRIVE
message” underDIC Warnings and Messages
on page 267.
Shifting Into Four-Wheel Drive High or
AUTO (Automatic Four-Wheel Drive)
Turn the knob to the Four-Wheel High or
AUTO position. This can be done at any speed,
except when shifting from Four-Wheel Drive
Low. The indicator light will ash while shifting.
It will remain on when the shift is completed.
Shifting Into Two-Wheel Drive High
Turn the knob to the Two-Wheel High position.
This can be done at any speed, except when
shifting from Four-Wheel Drive Low.
See shifting out of Four-Wheel Drive Low later
in this section for more information.
134

Shifting Into Four-Wheel Drive Low
When Four-Wheel Low is engaged, vehicle
speed should be kept below 45 mph. Extended
high-speed operation in 4L may damage or
shorten the life of the drivetrain.
To shift to the Four-Wheel Drive Low position, the
ignition must be in RUN and the vehicle must
be stopped or moving less than 3 mph (5 km/h)
with the transmission in NEUTRAL (N). The
preferred method for shifting into Four-Wheel Drive
Low is to have your vehicle moving 1 to 2 mph
(1.6 to 3.2 km/h). Turn the knob to the Four-Wheel
Drive Low position. You must wait for the
Four-Wheel Drive Low indicator light to stop
ashing and remain on before shifting your
transmission in gear.Notice:Shifting the transmission into gear
before the Four-Wheel Drive Low indicator light
has stopped ashing could damage the
transfer case. To help avoid damaging your
vehicle, always wait for the Four-Wheel
Drive Low indicator light to stop ashing
before shifting the transmission into gear.
The vehicle may have signicant engagement noise
and bump when shifting between Four-Wheel Drive
Low and Four-Wheel Drive High ranges or from
NEUTRAL while the engine is running.
If the knob is turned to the Four-Wheel Drive Low
position when your vehicle is in gear and/or
moving, the Four-Wheel Drive Low indicator light
will ash for 30 seconds and not complete the
shift unless your vehicle is moving less than 3 mph
(5 km/h) and the transmission is in NEUTRAL (N).
After 30 seconds the transfer case will shift to
Four-Wheel Drive High mode.
135

Shifting Out of Four-Wheel Drive Low
To shift from Four-Wheel Drive Low to Four-Wheel
Drive High, AUTO, or Two-Wheel Drive High, your
vehicle must be stopped or moving less than 3 mph
(5 km/h) with the transmission in NEUTRAL (N) and
the ignition in RUN. The preferred method for
shifting out of Four-Wheel Drive Low is to have your
vehicle moving 1 to 2 mph (1.6 to 3.2 km/h). Turn
the knob to the Four-Wheel Drive High, AUTO, or
Two-Wheel Drive High position. You must wait for
the Four-Wheel Drive High, AUTO, or Two-Wheel
Drive High indicator light to stop ashing and
remain on before shifting your transmission
into gear.
Notice:Shifting the transmission into gear
before the Four-Wheel Drive Low indicator light
has stopped ashing could damage the
transfer case. To help avoid damaging your
vehicle, always wait for the Four-Wheel
Drive Low indicator light to stop ashing
before shifting the transmission into gear.
The vehicle may have signicant engagement noise
and bump when shifting between Four-Wheel Drive
Low and Four-Wheel Drive High ranges or from
NEUTRAL while the engine is running.If the knob is turned to the Four-Wheel Drive High,
AUTO, or Two-Wheel Drive High switch position
when your vehicle is in gear and/or moving,
the Four-Wheel Drive High, AUTO or Two-Wheel
Drive High indicator light will ash for 30 seconds
but will not complete the shift unless your
vehicle is moving less than 3 mph (5 km/h) and
the transmission is in NEUTRAL (N).
Shifting into NEUTRAL
To shift the transfer case to NEUTRAL do the
following:
1. Make sure the vehicle is parked so that it will
not roll.
2. Set the parking brake and apply the regular
brake pedal. SeeParking Brake on page 138
for more information.
3. Start the vehicle or turn the ignition to RUN.
4. Put the transmission in NEUTRAL (N).
5. Shift the transfer case to Two-Wheel
Drive High.
136