2008 CHEVROLET AVALANCHE keyless entry

If you use the remote keyless entry transmitter to enter
your vehicle and the remote recall memory feature
is on, automatic seat, adjustable mirror, and adjustable
pedal movements will occur. See “MEMORY SEAT
RECALL” underDIC Vehicle Customization (With DIC
Buttons) on page 3-66for more information.
To stop recall movement of the memory function at any
time, press one of the power seat controls, memory
buttons, power mirror buttons, or adjustable pedal
switch.
If something has blocked the driver’s seat and/or the
adjustable pedals while recalling a memory position, the
driver’s seat and/or the adjustable pedals recall may
stop working. If this happens, remove the obstruction
and press the appropriate control for the area that is not
responding for two seconds. Try recalling the memory
position again by pressing the appropriate memory
button. If the memory position is still not recalling, see
your dealer for service.Easy Exit Seat
The control for this feature is located on the driver’s
door panel between buttons 1 and 2.
With the vehicle in PARK (P), the driver’s seat exit
position can be recalled by pressing the exit button.
You will hear a single beep, and the driver’s seat
will move back.
If the easy exit seat feature is programmed in the Driver
Information Center (DIC), automatic seat movement
will occur when the key is removed from the ignition.
See “EASY EXIT SEAT” underDIC Vehicle
Customization (With DIC Buttons) on page 3-66for
more information.
The memory seat and easy exit features can also be
programmed using the DIC.
For programming information, seeDIC Vehicle
Customization (With DIC Buttons) on page 3-66.
1-7

Keys...............................................................2-3
Remote Keyless Entry (RKE) System................2-4
Remote Keyless Entry (RKE) System
Operation...................................................2-5
Remote Vehicle Start......................................2-7
Doors and Locks............................................2-10
Door Locks..................................................2-10
Power Door Locks........................................2-10
Delayed Locking...........................................2-10
Programmable Automatic Door Locks..............2-11
Rear Door Security Locks..............................2-11
Lockout Protection........................................2-12
Midgate
®.....................................................2-12
Tailgate.......................................................2-22
Power Running Boards..................................2-22
Windows........................................................2-23
Power Windows............................................2-24
Sun Visors...................................................2-25
Theft-Deterrent Systems..................................2-26
Content Theft-Deterrent.................................2-26
PASS-Key
®III+ Electronic Immobilizer.............2-28
PASS-Key®III+ Electronic Immobilizer
Operation.................................................2-28Starting and Operating Your Vehicle................2-30
New Vehicle Break-In....................................2-30
Ignition Positions..........................................2-30
Retained Accessory Power (RAP)...................2-32
Starting the Engine.......................................2-32
Adjustable Throttle and Brake Pedal................2-33
Engine Coolant Heater..................................2-34
Active Fuel Management™.............................2-35
Automatic Transmission Operation...................2-35
Tow/Haul Mode............................................2-38
Four-Wheel Drive..........................................2-39
Parking Brake..............................................2-44
Shifting Into Park..........................................2-45
Shifting Out of Park......................................2-47
Parking Over Things That Burn.......................2-47
Engine Exhaust............................................2-48
Running the Vehicle While Parked..................2-48
Mirrors...........................................................2-49
Automatic Dimming Rearview Mirror with
OnStar
®, Compass and Temperature
Display....................................................2-49
Automatic Dimming Rearview Mirror with
Compass and Temperature Display..............2-52
Outside Power Mirrors...................................2-54
Outside Power Foldaway Mirrors.....................2-56
Section 2 Features and Controls
2-1

Remote Keyless Entry (RKE)
System
The Remote Keyless Entry (RKE) system operates on
a radio frequency subject to Federal Communications
Commission (FCC) Rules and with Industry Canada.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
1. This device may not cause interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation of the device.
This device complies with RSS-210 of Industry Canada.
Operation is subject to the following two conditions:
1. This device may not cause interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation of the device.
Changes or modications to this system by other than
an authorized service facility could void authorization to
use this equipment.If there is a decrease in the RKE operating range,
try this:
Check the distance. The transmitter may be too far
from the vehicle. Stand closer during rainy or snowy
weather.
Check the location. Other vehicles or objects may be
blocking the signal. Take a few steps to the left or
right, hold the transmitter higher, and try again.
Check the transmitter’s battery. See “Battery
Replacement” later in this section.
If the transmitter is still not working correctly, see
your dealer/retailer or a qualied technician for
service.
2-4

Remote Keyless Entry (RKE)
System Operation
The Remote Keyless Entry (RKE) transmitter functions
will work up to 195 feet (60 m) away, however, the
operating range may be less while the vehicle is running.
There are other conditions which can affect the
performance of the transmitter. SeeRemote Keyless
Entry (RKE) System on page 2-4.
/(Remote Vehicle Start):If your vehicle has this
feature, press
/to start the engine from outside
the vehicle using the RKE transmitter. SeeRemote
Vehicle Start on page 2-7for additional information.
Q(Lock):Press to lock all the doors, including
the tailgate.
If enabled through the Driver Information Center (DIC),
the turn signal lamps will ash once to indicate
locking has occurred. If enabled through the DIC,
the horn will chirp when
Qis pressed again within
three seconds of the previous press of the lock button.
SeeDIC Vehicle Customization (With DIC Buttons)
on page 3-66for additional information.
Pressing
Qwill arm the content theft-deterrent system.
SeeContent Theft-Deterrent on page 2-26.
With Remote Start
(Without Remote Start
Similar)
2-5

Laws in some communities may restrict the use of
remote starters. For example, some laws may require
a person using the remote start to have the vehicle
in view when doing so. Check local regulations for
any requirements on remote starting of vehicles.
Do not use the remote start feature if your vehicle is low
on fuel. Your vehicle may run out of fuel.
If your vehicle has the remote start feature, the RKE
transmitter functions will have an increased range
of operation. However, the range may be less while
the vehicle is running.
There are other conditions which can affect the
performance of the transmitter, seeRemote Keyless
Entry (RKE) System on page 2-4for additional
information./(Remote Start):This button will be on the RKE
transmitter if you have remote start.
To start the vehicle using the remote start feature:
1. Aim the transmitter at the vehicle.
2. Press and release the transmitter’s lock button.
The vehicle’s doors will lock. Immediately press and
hold the transmitter’s remote start button until the
turn signal lights ash. If you cannot see the vehicle’s
lights, press and hold the remote start button for
two to four seconds. Pressing the remote start
button again after the vehicle has started will turn
the engine off.
When the vehicle starts, the parking lamps will turn
on and remain on while the vehicle is running.
If the vehicle is left running it will automatically shut
off after 10 minutes unless a time extension has
been done.
3. If it is the rst remote start since the vehicle has
been driven, repeat these steps, while the engine is
still running, to extend the engine running time by
10 minutes. Remote start can be extended one time.
After entering the vehicle during a remote start, insert
and turn the key to RUN to drive the vehicle.
2-8

Doors and Locks
Door Locks
{CAUTION:
Unlocked doors can be dangerous.
Passengers, especially children, can easily
open the doors and fall out of a moving
vehicle. When a door is locked, the handle
will not open it. You increase the chance
of being thrown out of the vehicle in a
crash if the doors are not locked. So, wear
safety belts properly and lock the doors
whenever you drive.
Young children who get into unlocked
vehicles may be unable to get out. A child
can be overcome by extreme heat and can
suffer permanent injuries or even death
from heat stroke. Always lock your vehicle
whenever you leave it.
Outsiders can easily enter through an
unlocked door when you slow down or
stop your vehicle. Locking your doors can
help prevent this from happening.There are several ways to lock and unlock the doors.
To lock or unlock the door from the outside, use
the remote keyless entry (RKE) transmitter or the key.
To lock or unlock the door from the inside, slide the
manual lever up or down, or use the power door locks
switch.
Power Door Locks
The power door lock switches are located on the front
doors.
K(Unlock):Press to unlock the doors.
Q(Lock):Remove the key from the ignition and press
to lock the doors.
Delayed Locking
When locking the doors with the power lock switch or
the Remote Keyless Entry (RKE) transmitter and a door
is open, the doors will lock ve seconds after the last
door is closed. You will hear three chimes to signal that
the delayed locking feature is in use.
Pressing the power lock switch or the lock button on the
RKE transmitter twice will override the delayed locking
feature and immediately lock all the doors.
2-10

When you want to open a rear door when the security
lock is on, do the following:
1. Unlock the door by lifting the rear door manual lock,
using the power door lock switch, or the Remote
Keyless Entry (RKE) transmitter, if the vehicle
has one.
2. Open the door from the outside.
To cancel the rear door security lock, do the following:
1. Unlock the door and open it from the outside.
2. Insert the key into the security lock slot and turn it
so the slot is in the vertical position.
Lockout Protection
This feature protects you from locking your key in the
vehicle when the key is in the ignition and a door
is open.
If the power lock switch is pressed when a door is open
and the key is in the ignition, all of the doors will lock
and then the driver’s door will unlock.
Midgate®
{CAUTION:
It can be dangerous to drive with the cargo
area covered and the tailgate and the Midgate®
open because carbon monoxide (CO) gas can
come into your vehicle. You can not see or
smell CO. It can cause unconsciousness and
even death. If you must drive with the cargo
covers on and the tailgate and Midgate
®
open or if electrical wiring or other cable
connections must pass through the seal
between the body and the Midgate
®:
Make sure all windows are shut.
Turn the fan on your heating or cooling
system to its highest speed on the setting
that brings in outside air. This will force
outside air into your vehicle. SeeDual
Automatic Climate Control System on
page 3-24.
If you have air outlets on or under the
instrument panel, open them all the way.
SeeEngine Exhaust on page 2-48.
2-12

Tailgate
{CAUTION:
It is extremely dangerous to ride on the
tailgate, even when the vehicle is operated at
low speeds. People riding on the tailgate can
easily lose their balance and fall in response
to vehicle maneuvers. Falling from a moving
vehicle may result in serious injuries or death.
Do not allow people to ride on the tailgate. Be
sure everyone in your vehicle is in a seat and
using a safety belt properly.
Use the Remote Keyless Entry (RKE) transmitter or
power door lock switch to lock and unlock the tailgate.
Open the tailgate by lifting up on its handle while pulling
the tailgate toward you.
To shut the tailgate, push it rmly upward until it
latches. Push and pull on the tailgate to be sure it is
latched securely.
Tailgate Removal
The tailgate is not to be removed. This may cause
damage to electrical connector resulting in loss
of lock/unlock and rear vision camera function.
Power Running Boards
Your vehicle may have power running boards.
The power running boards automatically extend from
beneath the vehicle on the side in which the door
has been opened. Once the door is closed, the running
boards will automatically move back under the vehicle
after a brief delay. The vehicle must not be moving
for the running boards to extend or retract.
The switch used to disable
the power running boards
is located on the center
console below the climate
control system.
The running boards cannot be disabled in the extended
position.
2-22