2021 CHEVROLET COLORADO alarm

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14430421) - 2021 - CRC - 2/10/20
Introduction 5
1.Air Vents 0168.
2. Trailer Brake Control Panel (If Equipped) (Out of View). See “Integrated Trailer
Brake Control System” underTowing
Equipment 0228.
3. Turn Signal Lever. See Turn and
Lane-Change Signals 0103.
Driver Information Center (DIC) (Base
Level) Controls (If Equipped). See Driver
Information Center (DIC) (Base Level)
0 93 or
Driver Information Center (DIC) (Uplevel)
0 95.
4. Instrument Cluster 080.
5. Windshield Wiper/Washer 076.
6. Light Sensor. See Automatic Headlamp
System 0102.
Vehicle Alarm System Indicator (If
Equipped). See Vehicle Alarm System
0 14.
7. Infotainment Controls. See Overview
0 109.
8. Climate Control Systems 0163 (If
Equipped).
Automatic Climate Control System 0165
(If Equipped).
9. Heated Front Seats 025 (If Equipped). 10.
Power Outlets 077 (If Equipped).
11. Shift Lever. See Automatic Transmission
0 191 or
Manual Mode 0193.
12. Auxiliary Jack. See the infotainment manual.
USB Port. See the infotainment manual.
13. Hazard Warning Flashers 0103.
Traction Control/Electronic Stability
Control 0202.
Exterior Cargo Lamps 0104.
Lane Departure Warning (LDW) 0216 (If
Equipped).
Hill Descent Control (HDC) 0204 (If
Equipped).
Tow/Haul Mode 0195 (If Equipped).
Locking Front Axle 0207 (If Equipped).
Locking Rear Axle 0206 (If Equipped).
14. Steering Wheel Controls 075 (If
Equipped).
Driver Information Center (DIC) (Uplevel)
Controls (If Equipped). See Driver
Information Center (DIC) (Base Level)
0 93 or
Driver Information Center (DIC) (Uplevel)
0 95. 15.
Horn 076.
16. Steering Wheel Adjustment 075 (Out
of View).
17. Cruise Control 0208.
Forward Collision Alert (FCA) System
0 213 (If Equipped).
18. Transfer Case Knob (If Equipped). See Four-Wheel Drive 0195.
Driver Mode Control 0205 (If Equipped).
19. Hood Release. See Hood0238.
20. Parking Brake 0201.
21. Data Link Connector (DLC) (Out of View). SeeMalfunction Indicator Lamp (Check
Engine Light) 086.
22. Exterior Lamp Controls 0101.
Fog Lamps 0104 (If Equipped).
23. Instrument Panel Illumination Control
0105.

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14430421) - 2021 - CRC - 2/10/20
6 Keys, Doors, and Windows
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Remote Keyless Entry (RKE) System . . . . . 8
Remote Keyless Entry (RKE) SystemOperation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Remote Vehicle Start . . . . . . . . . . . . . . . . . . . . 11
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Power Door Locks . . . . . . . . . . . . . . . . . . . . . . . 12
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . 12
Automatic Door Locks . . . . . . . . . . . . . . . . . . . 13
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . 13
Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Doors
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . . . . . . . . . . . 14
Vehicle Alarm System . . . . . . . . . . . . . . . . . . 14
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Immobilizer Operation . . . . . . . . . . . . . . . . . . 15
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 16
Manual Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 16
Power Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 16 Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 16
Blind Spot Mirrors . . . . . . . . . . . . . . . . . . . . . . 16
Interior Mirrors
Interior Rearview Mirrors . . . . . . . . . . . . . . . 17
Manual Rearview Mirror . . . . . . . . . . . . . . . . 17
Automatic Dimming Rearview Mirror . . . 17
Windows
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Power Windows . . . . . . . . . . . . . . . . . . . . . . . . 18
Rear Windows . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Keys and Locks
Keys
{Warning
Leaving children in a vehicle with the
ignition key is dangerous and children or
others could be seriously injured or killed.
They could operate the power windows
or other controls or make the vehicle
move. The windows will function with
the keys in the ignition, and children or
others could be caught in the path of a
closing window. Do not leave children in
a vehicle with the ignition key.

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14430421) - 2021 - CRC - 2/10/20
Keys, Doors, and Windows 9
Remote Keyless Entry (RKE)
System Operation
The RKE transmitter functions may work up
to 60 m (197 ft) away from the vehicle.
Other conditions can affect the performance
of the transmitter. SeeRemote Keyless Entry
(RKE) System 08.
With Remote Start, without Similar
/:If equipped,/is used to start the
engine from outside the vehicle using the
RKE transmitter. See Remote Vehicle Start
0 11.
Q:Press to lock all doors and the tailgate. If enabled, the turn signal lamps flash once
to indicate locking has occurred. If enabled,
the horn chirps when
Qis pressed again
within three seconds. See Vehicle
Personalization 098.
Pressing
Qarms the vehicle alarm system.
See Vehicle Alarm System 014.
K:Press once to unlock only the driver
door. If
Kis pressed again within
three seconds, all remaining doors and the
tailgate unlock. The interior lamps may
come on and stay on for 20 seconds or until
the ignition is turned on.
If enabled, the turn signal lamps flash twice
to indicate unlocking has occurred.
If enabled, the exterior lamps may turn on.
See Vehicle Personalization 098.
Pressing
Kon the RKE transmitter disarms
the vehicle alarm system. See Vehicle Alarm
System 014.
7:Press and release one time to initiate
vehicle locator. The turn signal lamps flash
and the horn sounds three times.
Press and hold
7for at least three seconds
to sound the panic alarm. The turn signal
lamps flash and the horn sounds repeatedly for 30 seconds. The alarm turns off when
the ignition is turned on or
7is pressed
again. The ignition must be off for the panic
alarm to work.
Programming Transmitters to the Vehicle
Only RKE transmitters programmed to this
vehicle will work. If a transmitter is lost or
stolen, a replacement can be purchased and
programmed through your dealer. Each
vehicle can have up to eight transmitters
programmed to it. See your dealer for
transmitter programming.
Battery Replacement
{Warning
Never allow children to play with the RKE
transmitter. The transmitter contains a
small battery, which can be a choking
hazard. If swallowed, internal burns can
occur, resulting in severe injury or death.
Seek medical attention immediately if a
battery is swallowed.

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14430421) - 2021 - CRC - 2/10/20
14 Keys, Doors, and Windows
Doors
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 seat belt properly.
On vehicles with a lock on the tailgate, use
the key to lock or unlock the tailgate.
If equipped, to lock or unlock the tailgate,
use the RKE transmitter or the key. See
Remote Keyless Entry (RKE) System
Operation 09
Open the tailgate by lifting up on its handle
while pulling the tailgate down.
To shut the tailgate, firmly push it upward
until it latches. After closing the tailgate, pull it back to be
sure it latches securely.
Vehicle Security
This vehicle has theft-deterrent features;
however, they do not make the vehicle
impossible to steal.
Vehicle Alarm System
If equipped with the anti-theft alarm
system, the indicator light, on the
instrument panel near the windshield,
indicates the status of the system.
Off :
Alarm system is disarmed. On Solid :
Vehicle is secured during the
delay to arm the system.
Fast Flash : Vehicle is unsecured. A door or
the hood is open.
Slow Flash : Alarm system is armed.
Arming the Alarm System
1. Turn off the vehicle.
2. Lock the vehicle with one of the
following:
.Use the Remote Keyless Entry (RKE)
transmitter.
.With a door open, pressQon the
interior of the door.
3. After 30 seconds the alarm system will arm, and the indicator light will begin to
slowly flash indicating the alarm system
is operating. Pressing
Qon the RKE
transmitter a second time will bypass
the 30-second delay and immediately
arm the alarm system.
The theft-deterrent alarm system will not
arm if the doors are locked with the key.
If the driver door is opened without first
unlocking with the RKE transmitter, the horn
will chirp and the lights will flash to indicate
pre-alarm. If the vehicle is not started,

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14430421) - 2021 - CRC - 2/10/20
Keys, Doors, and Windows 15
or the door is not unlocked by pressingK
on the RKE transmitter during the 10-second
pre-alarm, the alarm will be activated.
If a door or the hood is opened without first
disarming the system, the turn signals will
flash and the horn will sound for about
30 seconds. The alarm system will then
re-arm to monitor for the next unauthorized
event.
Disarming the Alarm System
To disarm the alarm system or turn off the
alarm if it has been activated:
.PressKon the RKE transmitter.
.Start the vehicle.
To avoid setting off the alarm by accident:
.Lock the vehicle after all occupants have
left the vehicle and all doors are closed.
.Always unlock a door with the RKE
transmitter.
Unlocking the driver door with the key will
not disarm the system or turn off the alarm.
Detecting a Tamper Condition
IfKis pressed on the RKE transmitter and
the horn chirps three times, an alarm
occurred previously while the alarm system
was armed.
Immobilizer
See Radio Frequency Statement 0336.
Immobilizer Operation
This vehicle has a passive theft-deterrent
system.
The system does not have to be manually
armed or disarmed.
The vehicle is automatically immobilized
when the vehicle is turned off.
The system is automatically disarmed when
the ignition is turned from off to on.
The security light, in the instrument cluster,
comes on if there is a problem with arming
or disarming the theft-deterrent system. When trying to start the vehicle, the
security light comes on briefly when the
ignition is turned on.
If the engine does not start and the security
light stays on, there is a problem with the
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. It may be necessary to check
the fuse. See
Fuses and Circuit Breakers
0 261. 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.
It is possible for the immobilizer system to
learn new or replacement keys. Up to eight
keys can be programmed for the vehicle. To
program additional transmitters, see Remote
Keyless Entry (RKE) System Operation 09.
Do not leave the transmitter or device that
disarms or deactivates the vehicle
theft-deterent system in the vehicle.
See your dealer to get a new key blank cut
exactly as the ignition key that operates the
system.

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14430421) - 2021 - CRC - 2/10/20
340 OnStar
.Receive a Diagnostic check of the vehicle's
key operating systems.
.Receive Roadside Assistance.
.Manage Wi-Fi Settings, if equipped.
Press
>to get a priority connection to an
OnStar Advisor available 24/7 to:
.Get help for an emergency.
.Be a Good Samaritan or respond to an
AMBER Alert.
.Get assistance in severe weather or other
crisis situations and find evacuation
routes.
OnStar Services
Emergency
Emergency Services require an active safety
and security plan. With Automatic Crash
Response, built-in sensors can automatically
alert a specially trained OnStar Advisor who
is immediately connected in to the vehicle
to help.
Press
>for a priority connection to an
OnStar Advisor who can contact emergency
service providers, direct them to your exact
location, and relay important information. With OnStar Crisis Assist, specially trained
Advisors are available 24 hours a day, 7 days
a week, to provide a central point of
contact, assistance, and information during a
crisis.
With Roadside Assistance, Advisors can
locate a nearby service provider to help with
a flat tire, a battery jump, or an empty
gas tank.
Security
If equipped, OnStar provides these services:
.With Stolen Vehicle Assistance, OnStar
Advisors can use GPS to pinpoint the
vehicle and help authorities quickly
recover it.
.With Remote Ignition Block, if equipped,
OnStar can block the engine from being
restarted.
.With Stolen Vehicle Slowdown,
if equipped, OnStar can work with law
enforcement to gradually slow the
vehicle down.
Theft Alarm Notification
If equipped, if the doors are locked and the
vehicle alarm sounds, a notification by text,
e-mail, or phone call will be sent. If the
vehicle is stolen, an OnStar Advisor can work
with authorities to recover the vehicle.
OnStar Additional
Information
In-Vehicle Audio Messages
Audio messages may play important
information at the following times:
.Prior to vehicle purchase. PressQto set
up an account.
.After change in ownership and at
90 days.
Transferring Service
PressQto request account transfer
eligibility information. The Advisor can
cancel or change account information.
Selling/Transferring the Vehicle
Call 1-888-4ONSTAR (1-888-466-7827)
immediately to terminate your OnStar or
connected services if the vehicle is disposed
of, sold, transferred, or if the lease ends.

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14430421) - 2021 - CRC - 2/10/20
Index 347
IndexA
Accessories and Modifications . . . . . . . . . . . 237
Accessory Power . . . . . . . . . . . . . . . . . . . . . . . . . 188
Active Fuel Management . . . . . . . . . . . . . . . . 190
Add-On Electrical Equipment . . . . . . . . . . . . . 234
Additional InformationOnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Additional Maintenance and Care . . . . . . . . .318
Adjustments Lumbar, Front Seats . . . . . . . . . . . . . . . . . . . . 23
Agreements Trademarks and License . . . . . . . . . . . . . . . 154
Air Cleaner/Filter, Engine . . . . . . . . . . . . . . . . 246
Air Conditioning . . . . . . . . . . . . . . . . . . . . . 163, 165
Air Filter, Passenger Compartment . . . . . . . 168
Air Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
How Does an Airbag Restrain? . . . . . . . . . . 38
Passenger Sensing System . . . . . . . . . . . . . . 39
What Makes an Airbag Inflate? . . . . . . . . . 37
What Will You See after an AirbagInflates? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
When Should an Airbag Inflate? . . . . . . . . 37
Where Are the Airbags? . . . . . . . . . . . . . . . . 36
Airbags Adding Equipment to the Vehicle . . . . . . . 43
Passenger Status Indicator . . . . . . . . . . . . . . 85 Airbags (cont'd)
Readiness Light . . . . . . . . . . . . . . . . . . . . . . . . . 85
Servicing Airbag-Equipped Vehicles . . . . . . 42
System Check . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Alarm Vehicle Security . . . . . . . . . . . . . . . . . . . . . . . . 14
All-Season Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 268
All-Terrain Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 269
AM-FM Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Antenna
Multi-band . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Antilock Brake System (ABS) . . . . . . . . . . . . . 201
Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
Apple CarPlay and Android Auto . . . . . . . . . 144
Assistance Program, Roadside . . . . . . . . . . . . . 331
Assistance Systems for Parking and Backing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Audio
Bluetooth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Automatic Climate Control System . . . . . . . . . . . . . . . . 165
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Emergency Braking (AEB) . . . . . . . . . . . . . . 214
Headlamp System . . . . . . . . . . . . . . . . . . . . . 102
Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191

Chevrolet Colorado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14430421) - 2021 - CRC - 2/10/20
Index 355
Seat Belts (cont'd)Extender . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
How to Wear Seat Belts Properly . . . . . . . 28
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . . . . 30
Reminders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Replacing after a Crash . . . . . . . . . . . . . . . . . 34
Use During Pregnancy . . . . . . . . . . . . . . . . . . 33
Seats Adjustment, Front . . . . . . . . . . . . . . . . . . . . . . 23
Head Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Heated Front . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Lumbar Adjustment, Front . . . . . . . . . . . . . . 23
Power Adjustment, Front . . . . . . . . . . . . . . . 23
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Reclining Seatbacks . . . . . . . . . . . . . . . . . . . . . 24
Underseat Storage . . . . . . . . . . . . . . . . . . . . . . 73
Securing Child Restraints . . . . . . . . . . . . . . 64, 69
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Vehicle Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168 Accessories and Modifications . . . . . . . . . 237
Climate Control System . . . . . . . . . . . . . . . . 163
Doing Your Own Work . . . . . . . . . . . . . . . . . 238
Maintenance Records . . . . . . . . . . . . . . . . . . 324
Maintenance, General Information . . . . . . 311 Service (cont'd)
Parts Identification . . . . . . . . . . . . . . . . . . . . . 325
Scheduling Appointments . . . . . . . . . . . . . . 332
Services Special Application . . . . . . . . . . . . . . . . . . . . . 318
Servicing System . . . . . . . . . . . . . . . . . . . . . . . . .134
Servicing the Airbag . . . . . . . . . . . . . . . . . . . . . . 42
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Shift Lock Control Function Check, Automatic Transmission . . . . . . . . . . . . . . . . 256
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Out of Park . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Signals, Turn and Lane-Change . . . . . . . . . . . 103
Software Updates . . . . . . . . . . . . . . . . . . . . . . . . . 115
Spare Tire Compact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294
Special Application Services . . . . . . . . . . . . . . .318
Specifications and Capacities . . . . . . . . . . . . . 325
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Start Assist, Hill . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Start Vehicle, Remote . . . . . . . . . . . . . . . . . . . . . . 11
Starter Switch Check . . . . . . . . . . . . . . . . . . . . . 256
Starting the Engine . . . . . . . . . . . . . . . . . . . . . . 186
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171 Heated Wheel . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Steering (cont'd)
Wheel Adjustment . . . . . . . . . . . . . . . . . . . . . . 75
Wheel Controls . . . . . . . . . . . . . . . . . . . . . . . . . 75
Steering Wheel Controls . . . . . . . . . . . . . . . . . . 111
Storage Areas Center Console . . . . . . . . . . . . . . . . . . . . . . . . . 73
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Sunglasses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Underseat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Storage Compartments . . . . . . . . . . . . . . . . . . . .72
Struts Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
Stuck Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . .178
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Sunglass Storage . . . . . . . . . . . . . . . . . . . . . . . . . .72
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
System Forward Collision Alert (FCA) . . . . . . . . . . . 213
Global Positioning . . . . . . . . . . . . . . . . . . . . . 133
Infotainment . . . . . . . . . . . . . . . . . . . . . . . . . . . 338
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Systems Driver Assistance . . . . . . . . . . . . . . . . . . . . . . 209
T
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14