
Black plate (19,1)Chevrolet Colorado Owner Manual - 2011
In Brief 1-19
For a full description of OnStar
services and system limitations, see
the OnStar Owner's Guide in the
glove box.
OnStar service is subject to the
OnStar Terms and Conditions
included in the OnStar Glove
Box Kit.
OnStar service requires wireless
communication networks and the
Global Positioning System (GPS)
satellite network. Not all OnStar
services are available everywhere
or on all vehicles at all times.
OnStar service can’t work unless
your vehicle is in a place where
OnStar has an agreement with a
wireless service provider for service
in that area, and the wireless
service provider has coverage,
network capacity, reception, and
technology compatible with OnStar's
service. Service involving location
information about your vehicle can’t
work unless GPS signals are
available, unobstructed, and
compatible with the OnStarhardware. The vehicle has to have a
working electrical system and
adequate battery power for the
OnStar equipment to operate.
OnStar service may not work if the
OnStar equipment isn’t properly
installed or you haven’t maintained
it and your vehicle is in good
working order and in compliance
with all government regulations.
If you try to add, connect, or modify
any equipment or software in your
vehicle, OnStar service may not
work. Other problems OnStar can’t
control may prevent service to you,
such as hills, tall buildings, tunnels,
weather, electrical system design
and architecture of your vehicle,
damage to important parts of your
vehicle in a crash, or wireless phone
network congestion or jamming.
See
Radio Frequency Statement on
page 13‑17 for information
regarding Part 15 of the Federal
Communications Commission (FCC)
rules and Industry Canada
Standards RSS-210/220/310.Your Responsibility
Increase the volume of the radio if
the OnStar Advisor cannot be
heard.
If the light next to the OnStar
buttons is red, the system may not
be functioning properly. Push the
Q
button and request a vehicle
diagnostic. If the light appears clear
(no light appears), your OnStar
subscription has expired and all
services have been deactivated.
Push the
Qbutton to confirm that
the OnStar equipment is active.

Black plate (8,1)Chevrolet Colorado Owner Manual - 2011
2-8 Keys, Doors and Windows
Tailgate Removal
To remove the tailgate:
1. With the tailgate fully open, liftup slightly on the entire tailgate
assembly.
2. Remove the retaining cables
from both sides of the tailgate by
pulling the clips away from the
bolt heads while pushing the
cable bracket forward.
When the larger part of the hole
on the bracket is over the bolt,
slide the bracket off of the bolt. 3. With the tailgate partially down,
lift up on the passenger side and
pull the tailgate toward you, then
move the tailgate to the right to
release the driver side. You can
then remove the entire tailgate
assembly.
Reverse the procedure to reinstall
the tailgate. Make sure it is secure.
To partially lower the tailgate:
1. With the tailgate fully open, lift up slightly on the entire tailgate
assembly.
Tailgate Partially Down
2. Remove the retaining cable from the passenger side of the
tailgate by pulling the clip away
from the bolt head while pushing
the cable bracket forward.
When the larger part of the hole
on the bracket is over the bolt,
slide the bracket off the bolt.

Black plate (9,1)Chevrolet Colorado Owner Manual - 2011
Keys, Doors and Windows 2-9
3. Slide the lower end fitting ontothe top bolt. The tailgate will now
stay in the partially opened
position.
4. Repeat Steps 2 and 3 for the driver side.
If you would like to close the
tailgate, the bracket cannot be in the
partially opened position. Use the
top position on the bracket to
anchor it on the bottom bolt.Vehicle Security
This vehicle has theft-deterrent
features; however, they do not make
it impossible to steal.
Anti-Theft Alarm System
If your vehicle has the Remote
Keyless Entry (RKE) system, the
vehicle has a content theft-deterrent
alarm system.
To activate the content
theft-deterrent system:
1. Close all the doors.
2. Lock the doors with the RKE transmitter. The security light,
located on the instrument panel
cluster, will flash. If the LOCK button on the RKE
transmitter is pressed, but a door is
open, the horn will chirp six times.
Press the LOCK button again, within
three seconds, and the doors will
lock. Close the open door and the
system will be activated.
If a locked door is not opened using
the RKE transmitter, or by OnStar
®,
the pre-alarm will go off. If the
engine is not started or UNLOCK
not pressed within 10 seconds, the
front turn signal lamps will flash for
two minutes, and the horn will sound
for two minutes, then will turn off to
save the battery power.
Remember, the theft-deterrent
system will not activate if you lock
the doors with a key, the manual
door lock, or power door lock
switch. The system can only be
activated using the RKE transmitter,
or by OnStar
®. See the OnStar
Owner's Guide for additional
information. You should also
remember that you can start your
vehicle with the correct ignition key
if the alarm has been set off.

Black plate (10,1)Chevrolet Colorado Owner Manual - 2011
2-10 Keys, Doors and Windows
Here is how to avoid setting off the
alarm by accident:
.If you do not want to activate the
theft-deterrent system, the
vehicle should be locked with
the door key after the doors are
closed.
.Always unlock a door with the
RKE transmitter. Unlocking a
door any other way will set off
the alarm.
If you set off the alarm by accident,
you can turn off the alarm by
pressing UNLOCK on the RKE
transmitter. The alarm will not stop if
you try to unlock a door any
other way.
Testing the Alarm
To test the alarm:
1. From inside the vehicle, activate the system by locking the doors
with the RKE transmitter.
2. Unlock the door with the manual door lock and open the door.
This should set off the alarm. 3. To turn the alarm off, press the
UNLOCK button on the RKE
transmitter or start the engine.
If the alarm does not sound when it
should but the lights flash, check to
see if the horn works. The horn fuse
may be blown. To replace the fuse,
see Fuses and Circuit Breakers on
page 10‑40.
If the alarm does not sound or the
front turn signal lamps do not flash,
see your dealer for service.
Immobilizer
See Radio Frequency Statement on
page 13‑17 for information
regarding Part 15 of the Federal
Communications Commission (FCC)
rules and Industry Canada
Standards RSS-210/220/310.
Immobilizer Operation
(PASS-Key III+
Canada Only)
This vehicle has a passive
theft-deterrent system.
The system is automatically armed
when the key is removed from the
ignition.
The system is automatically
disarmed when the key is turned to
ON/RUN.
You do not have to manually arm or
disarm the system.
The security light comes on if there
is a problem with arming or
disarming the theft-deterrent
system.
The key uses a transponder that
matches an immobilizer control unit
in the vehicle. Only the correct key
starts the vehicle. If the key is ever
damaged, the vehicle may not start.
When trying to start the vehicle,
if the engine does not start and the
security light comes on, there may

Black plate (11,1)Chevrolet Colorado Owner Manual - 2011
Keys, Doors and Windows 2-11
be a problem with the theft-deterrent
system. Turn the ignition off and try
again.
If the engine still does not start, and
the key appears to be undamaged,
try another ignition key. Check the
fuse. SeeFuses and Circuit
Breakers on page 10‑40. If the
engine still does not start with the
other key, the vehicle needs service.
If the vehicle does start, the first key
may be faulty. See your dealer who
can service the theft-deterrent
system and have a new key made.
It is possible for the theft-deterrent
system decoder to learn the
transponder value of a new or
replacement key. Up to 10 keys can
be programmed for the vehicle. The
following procedure is for
programming additional keys only.
Canadian Owners: If the keys are
lost or damaged, only a dealer can
service the theft-deterrent system to
have new ones made. Two current
driver's keys are required to
program additional keys. To program a new key:
1. Verify that the new key has
PK3+ stamped on it.
2. Insert the current driver's key in the ignition and start the engine.
If the engine does not start see
your dealer for service.
3. After the engine has started, turn the key to LOCK/OFF, and
remove the key.
4. Insert the second current driver's key in the ignition and start the
engine within ten seconds of
removing the previous key. If the
engine does not start see your
dealer for service.
5. After the engine has started, turn the key to LOCK/OFF, and
remove the key. Insert the key to
be programmed and turn it to
ON/RUN within ten seconds of
removing the previous key.
The security light turns off once
the key has been programmed. 6. Repeat Steps 1 through 5 if
additional keys are to be
programmed.
If the security light comes on and
stays on while driving, the engine
will restart if you turn it off. However,
the theft-deterrent system is not
working properly and must be
serviced by your dealer. The vehicle
is not protected by the
theft-deterrent system at this time.
In an emergency, contact Roadside
Assistance. See Roadside
Assistance Program (U.S. and
Canada) on page 13‑7 orRoadside
Assistance Program (Mexico) on
page 13‑9.
Do not leave the key or device that
disarms or deactivates the theft
deterrent system in the vehicle.

Black plate (12,1)Chevrolet Colorado Owner Manual - 2011
2-12 Keys, Doors and Windows
Immobilizer Operation
(Passlock U.S. Only)
Passlock®is a passive
theft-deterrent system that enables
fuel if the vehicle is started with a
valid key. If an incorrect key is used
or the ignition lock cylinder is
tampered with, the fuel system is
disabled and the vehicle does not
start.
The security light turns off
approximately five seconds after the
engine is started. See Security Light
on page 5‑18.
If the engine stalls and the security
light flashes, wait about 10 minutes
until the light stops flashing before
trying to restart the engine. Release
the key from START as soon as the
engine starts.
If the engine does not start after
three tries, the vehicle needs
service. If the engine is running and the
security light comes on, the engine
restarts if you turn the engine off.
However, the Passlock®system is
not working properly and must be
serviced by your dealer. The vehicle
is not protected by Passlock
®at this
time. See your dealer for service.
In an emergency, call the Roadside
Assistance Center. See Roadside
Assistance Program (U.S. and
Canada) on page 13‑7 orRoadside
Assistance Program (Mexico) on
page 13‑9.
Do not leave the key or device that
disarms or deactivates the theft
deterrent system in the vehicle.
Exterior Mirrors
Convex Mirrors
{WARNING
A convex mirror can make things,
like other vehicles, look farther
away than they really are. If you
cut too sharply into the right lane,
you could hit a vehicle on the
right. Check the inside mirror or
glance over your shoulder before
changing lanes.
The passenger side mirror is convex
shaped. A convex mirror's surface is
curved so more can be seen from
the driver seat.

Black plate (14,1)Chevrolet Colorado Owner Manual - 2011
2-14 Keys, Doors and Windows
Interior Mirrors
Manual Rearview Mirror
Adjust this mirror for a clear view of
the area behind the vehicle. Hold
the mirror in the center to move it
up, down, or side-to-side. To reduce
headlamp glare, push the tab
forward for daytime use and pull it
for nighttime use.
Vehicles with OnStar
®have three
additional control buttons located at
the bottom of the mirror. See your
dealer for more information on the
system and how to subscribe to
OnStar. See the OnStar Owner's
Guide for more information about
the services OnStar provides.
Automatic Dimming
Rearview Mirror
The vehicle may have an automatic
dimming inside rearview mirror.
Automatic dimming reduces the
glare of lights from behind the
vehicle.
The mirror may also have OnStar
®
and/or a compass and outside
temperature display.
Control buttons for the OnStar
system are at the bottom of the
mirror. See the OnStar Owners
Guide for more information about
the services OnStar provides. See
Compass on page 5‑3 for more
information about the compass
display. See “Temperature Display”
after, for more information about the
outside temperature display. AUTO/
(/O(On/Off):
Press and
hold AUTO/
(for about
three seconds or depending on the
mirror, press
Oto turn automatic
dimming on or off. The automatic
dimming feature comes on and the
indicator light illuminates each time
the vehicle is started.
Temperature Display
Y b/O(On/Off) : PressYbor
depending on the mirror, press
Oto
turn the display on or off.
To adjust between Fahrenheit and
Celsius:
1. Press and hold
Y b/Ofor a
few seconds. The current unit of
measure (C or F) flashes.

Black plate (19,1)Chevrolet Colorado Owner Manual - 2011
Seats and Restraints 3-19
Q: What is wrong with this?
A:The belt is twisted across
the body.
{WARNING
You can be seriously injured by a
twisted belt. In a crash, you would
not have the full width of the belt
to spread impact forces. If a belt
is twisted, make it straight so it
can work properly, or ask your
dealer to fix it.
Lap-Shoulder Belt
All seating positions in the vehicle
have a lap-shoulder belt except for
the center front passenger position,
if equipped, which has a lap belt.
See Lap Belt on page 3‑24 for more
information.
The following instructions explain
how to wear a lap-shoulder belt
properly.
1. Adjust the seat, if the seat is adjustable, so you can sit up
straight. To see how, see “Seats”
in the Index.
2. Pick up the latch plate and pull the belt across you. Do not let it
get twisted.
The lap-shoulder belt may lock if
you pull the belt across you very
quickly. If this happens, let the
belt go back slightly to unlock it.
Then pull the belt across you
more slowly.
If you ever pull the shoulder
portion of a passenger belt out
all the way, the child restraint locking feature may be engaged.
If this happens, just let the belt
go back all the way and start
again.
Engaging the child restraint
locking feature in the right front
seating position may affect the
passenger sensing system,
if equipped. See
Passenger
Sensing System on page 3‑32
for more information.
3. Push the latch plate into the buckle until it clicks.