CHEVROLET AVALANCHE 2012 2.G Service Manual

Black plate (7,1)Chevrolet Avalanche Owner Manual - 2012
Keys, Doors, and Windows 2-7
The vehicle cannot be remote
started if the key is in the ignition,
the hood is not closed, or if there
is an emission control system
malfunction and the check engine
light is on.
Also, the engine will turn off during a
remote vehicle start if the coolant
temperature gets too high or if the
oil pressure gets low.
Remote Start Ready
If the vehicle does not have the
remote vehicle start feature, it may
have the remote start ready feature.
This feature allows your dealer to
add the manufacturer's remote
vehicle start feature.
See your dealer to add the
manufacturer's remote vehicle
start feature to the vehicle.
Door Locks
{WARNING
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. The chance of being
thrown out of the vehicle in a
crash is increased if the
doors are not locked. So, all
passengers should wear
safety belts properly and the
doors should be locked
whenever the vehicle is
driven.
.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(Continued)
WARNING (Continued)
injuries or even death from
heat stroke. Always lock the
vehicle whenever leaving it.
.Outsiders can easily enter
through an unlocked door
when you slow down or stop
the vehicle. Locking the doors
can help prevent this from
happening.
There are several ways to lock and
unlock the vehicle.
From outside, use the Remote
Keyless Entry (RKE) transmitter or
the key in the driver door.
From inside, use the power door
locks or manual door locks. To lock
or unlock the door with the manual
locks, push down or pull up on the
manual lock knob.

Black plate (8,1)Chevrolet Avalanche Owner Manual - 2012
2-8 Keys, Doors, and Windows
Power Door Locks
With power door locks, the switches
on the front doors can be used to
lock and unlock the vehicle.
If available, the switches are on the
front doors.
K(Unlock):Press to unlock the
doors.
Q(Lock): Press to lock the doors.
Delayed Locking
When locking the doors with
the power lock switch and a
door is open, the doors will lock
five 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 will
override the delayed locking feature
and immediately lock all the doors.
This feature will not operate if the
key is in the ignition.
You can also program this feature
using the Driver Information
Center (DIC). See
“Delay Door
Lock” under Vehicle Personalization
(With DIC Buttons) on page 5‑45.
Automatic Door Locks
The vehicle may have an automatic
lock/unlock feature. This feature can
be programmed using the Driver
Information Center (DIC). See
Vehicle Personalization (With DIC
Buttons) on page 5‑45 for more
information on DIC programming.
Lockout Protection
If the driver side power door lock
switch is pressed when the driver
door is open and the key is in the
ignition, all of the doors will lock and
then the driver door will unlock.
If the passenger side power door
lock switch is pressed when the
front passenger door is open and
the key is in the ignition, all of the
doors will lock and then the front
passenger door will unlock.
Safety Locks
The vehicle has rear door security
locks to prevent passengers from
opening the rear doors from the
inside.

Black plate (9,1)Chevrolet Avalanche Owner Manual - 2012
Keys, Doors, and Windows 2-9
Open the rear doors to access the
security locks on the inside edge of
each door.
To set the locks, insert a key into
the slot and turn it to the horizontal
position. The door can only be
opened from the outside with the
door unlocked. To return the door to
normal operation, turn the slot to the
vertical position.
Doors
Midgate®
{WARNING
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
(Continued)
WARNING (Continued)
that brings in outside air. This
will force outside air into your
vehicle. SeeDual Automatic
Climate Control System on
page 8‑4.
.If you have air outlets on or
under the instrument panel,
open them all the way. See
Engine Exhaust on
page 9‑31.
Midgate Operation
This vehicle is equipped with a
Midgate and a removable rear glass
panel. The Midgate allows you to
extend the length of the vehicle's
cargo area.

Black plate (10,1)Chevrolet Avalanche Owner Manual - 2012
2-10 Keys, Doors, and Windows
The following are the main
components of the Midgate system:
A. Latch Levers
B. Grab Handles
C. Glass-Catch Release Button
D. Glass Lock Knobs
E. Glass Retaining Tabs
F. Midgate Release Handle
G. Glass Alignment Arrows
Rear Glass Removal and
Storage
{WARNING
If the removable rear glass is not
stored properly, it could be thrown
about the vehicle in a crash or
sudden maneuver. People in the
vehicle could be injured.
Whenever you store the rear
glass in the vehicle, always be
sure that it is stored securely in
the Midgate
®storage pocket.
Do not remove the rear glass when
the rear defroster is on. If you do,
you may see a discharge spark
coming from the latch area.
To remove the rear glass do the
following:
1. Fold the rear seats. See Rear
Seats on page 3‑10. The front
seats may have to be moved
forward slightly to allow the rear
seats to fold completely. Although the rear glass can be
removed without folding the rear
seats, you will not be able to
access the rear glass storage
pocket. Be sure to fold the seats
before removing the rear glass.
2. Squeeze and pull down the latch
levers (A), located near the
upper corners of the rear glass,
to unlatch. Once unlatched, the
glass-catch release button (C)
will catch the rear glass and
prevent it from falling forward.

Black plate (11,1)Chevrolet Avalanche Owner Manual - 2012
Keys, Doors, and Windows 2-11
3. While holding the rear glass inplace, press the glass-catch
release button (C) and pull the
top of the rear glass toward you
using the grab handles (B)
located at the top of the rear
glass.4. With the rear glass tilted towardyou, lift it out from the lower
window frame channel. Use the
grab handles (B) to assist you in
removing the rear glass.5. Load the rear glass into thestorage pocket in the Midgate,
guiding the lower edge of the
rear glass behind the three rear
glass retaining tabs (E).
Hold the rear glass flat against
the storage pocket, with grab
handles facing you, until the
next step.

Black plate (12,1)Chevrolet Avalanche Owner Manual - 2012
2-12 Keys, Doors, and Windows
6. Turn both glass lock knobs (D),located at both top corners of
the storage pocket, to the locked
position. Push in on the corner
of the rear glass to allow the
lock knob to engage more easily.Once both glass lock knobs are
in the locked position, the rear
glass is securely stored.
7. Push both latch levers up to the locked position. You should hear
a click when each latch lever
locks correctly.
The rear seats can be returned
to the normal position when the
rear glass is out and stored
properly in the storage pocket.
Reinstalling the Rear Glass
To reinstall the rear glass, do the
following:
1. Squeeze and pull down the latchlevers (A), located near the
upper corners of the rear glass,
to unlatch.
2. Hold the rear glass in place withone hand and turn the glass lock
knobs, located at both top
corners of the glass storage
pocket, to the unlocked position.

Black plate (13,1)Chevrolet Avalanche Owner Manual - 2012
Keys, Doors, and Windows 2-13
3. Pull the rear glass out from thestorage pocket using the grab
handles (B).
4. With the rear glass tilted at an
angle, place the bottom edge in
the lower channel of the window
frame.
Be sure to align the rear glass
side-to-side using the glass
alignment arrows (G).5. Apply a firm downward pressureand then push the rear glass flat
against the window frame. Use
the grab handles (B) at the top of
the rear glass to assist you.
6. Push the rear glass flat against the window frame and push
each latch lever (A) up until it
locks. You should hear a click
when each latch lever locks
correctly.

Black plate (14,1)Chevrolet Avalanche Owner Manual - 2012
2-14 Keys, Doors, and Windows
Lowering the Midgate with the
Rear Glass in Place
The Midgate can be lowered to
allow the cargo area of your vehicle
to extend into the cab. The rear
glass can be either installed in its
normal position, or it can be
removed and stored in the rear
glass storage pocket.
To lower the Midgate:
1. Fold the rear seats. The frontseats might have to be moved
forward slightly to allow the rear
seats to fold. See Rear Seats on
page 3‑10.
Rear Glass in Normal Position
2. Standing outside of the vehicle, hold the Midgate securely so it
does not fall forward. Turn the
Midgate handle clockwise and
pull the Midgate toward you.
3. Lower the Midgate until it is flat.

Black plate (15,1)Chevrolet Avalanche Owner Manual - 2012
Keys, Doors, and Windows 2-15
Lowering the Midgate with the
Rear Glass in the Storage
Pocket
Rear Glass Stored in GlassStorage Pocket
Midgate Lowered with Crossbar
Attached
This procedure works the same as
the procedure described previously,
but when you lower the Midgate
with the rear glass in the stored
position, you will notice that the
entire crossbar will lower with the
Midgate. This is completely normal;
however, since the crossbar lowers
with the Midgate, it will be heavier.
As you lower the Midgate be ready
for the extra weight and do not let
the Midgate fall as you lower it.
Raising the Midgate
To return the Midgate to its normal
position, raise the Midgate up with a
firm swinging motion until it latches
into place securely. This will help to
ensure that the Midgate closes with
enough force to engage the latches.
If the rear glass is removed and you
would like to put it back, do so using
the instructions given previously.

Black plate (16,1)Chevrolet Avalanche Owner Manual - 2012
2-16 Keys, Doors, and Windows
Tailgate
{WARNING
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 close the tailgate, push it firmly
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.
Removing the tailgate may cause
damage to electrical connector
resulting in loss of lock/unlock and
rear vision camera function.
Power Assist Steps
The vehicle may have power assist
steps.
The switch used to disable the
power assist steps is located on the
center console below the climate
control system.
The power assist steps
automatically extend from beneath
the vehicle on the side in which the
door has been opened. Once the
door is closed, the assist steps
automatically move back under the
vehicle after a brief delay. The
vehicle must not be moving for the
assist steps to extend or retract.
The assist steps cannot be disabled
in the extended position.