2019 GMC SIERRA alarm

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - CRC - 5/13/19
Keys, Doors, and Windows 55
.Pressjagain to return to
normal operation.
Enable/Disable
To enable or disable the power
assist steps, press and hold
jfor
four seconds. A DIC message
displays.
Cleaning
Clean the power assist steps
regularly. For an automatic car
wash, extend the steps while in
N (Neutral) using the center stack
switch. The steps will stow when
shifting into D (Drive).
Vehicle Security
This vehicle has theft-deterrent
features; however, they do not make
the vehicle impossible to steal.
Vehicle 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 in one of two ways:
.Use the RKE transmitter.
. With a door open, press
Q
on the interior of the door.
3. After 30 seconds, the alarm system will arm and the
indicator light will begin to
slowly flash. Pressing
Qon the
RKE transmitter a second time
will bypass the 30-second
delay and immediately arm the
alarm system.
The vehicle 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

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - CRC - 5/13/19
56 Keys, Doors, and Windows
the lights will flash to indicate
pre-alarm. If the vehicle is not
started, or the door is not unlocked
by pressing
Kon the RKE
transmitter during the 10-second
pre-alarm, the alarm will be
activated.
The alarm will also be activated if a
passenger door or the hood is
opened without first disarming the
system. When the alarm is
activated, the turn signals flash and
the horn sounds 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:
. Press
Kon the RKE transmitter.
. Start the vehicle.
To avoid setting off the alarm by
mistake:
. Lock the vehicle after all
occupants have exited. .
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.
How to Detect 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.
If the alarm has been activated, a
message will appear on the DIC.
Immobilizer
See Radio Frequency Statement
0 448.
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 vehicle will not change ignition
modes (ACC/ACCESSORY, on, off),
and the RKE transmitter appears to
be undamaged, try another
transmitter. Or, you may try placing

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - CRC - 5/14/19
310 Driving and Operating
Settings View
Within the Trailering App, touch the
Settings tab to modify the following
settings:
.Trailer Detection Alert
. Maintenance Alerts
. Security Alert
. Tow/Haul Mode Reminder
Trailer Detection Alert
The Trailer Detection Alert setting
will be on by default. Turn it off to
disable the Trailer Detection pop-up
from displaying when a trailer is
connected. The Guest Trailer Profile
will become the active Trailer
Profile, unless another Trailer Profile
is selected manually through the
Trailering App. If this setting is
disabled while a Custom Trailer
Profile is active, that Trailer Profile
will remain the active profile until the
trailer is disconnected.
Maintenance Alerts
Touch Maintenance Alerts to view
the Maintenance Alerts settings
page. These alerts are based on the
Trailer Profile, so the settings for
each Trailer Profile must be turned
on or off. Touch a profile to view
more information or adjust the
setting for that profile.
The setting will be on by default for
each profile. All Maintenance Alerts
for that active Trailer Profile will be
received.
Turn a setting off to not receive any
of the Maintenance Alerts when that
Trailer Profile is active.
Security Alert
A security alert can be set if a trailer
is connected and the alert is
enabled. When the trailer is
disconnected and the vehicle is off,
an alarm will sound. Touch Security Alert in Settings to
view the Security Alert settings
page. These alerts are based on the
Trailer Profile, so the settings for
each Trailer Profile must be turned
on or off. Touch a profile to view
more information or adjust the
setting for that profile.
This setting will be off by default for
each Trailer Profile, including the
Guest Trailer Profile.
A smartphone will receive a
notification that the trailer related to
the selected Trailer Profile is
disconnected from the vehicle, if the
setting is on for the active Trailer
Profile, the vehicle has an OnStar or
connected service plan and the
smartphone number has been
added to the account for this
notification.
If the setting is turned off for a given
Trailer Profile, the smartphone will
not receive this security notification
even if the Trailer Profile is active.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - CRC - 5/14/19
454 OnStar
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.
Press
Qto 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.
Reactivation for Subsequent
Owners
PressQand follow the prompts to
speak to an Advisor as soon as
possible. The Advisor will update
vehicle records and explain OnStar
or connected service options.
How OnStar Service Works
Automatic Crash Response,
Emergency Services, Crisis Assist,
Stolen Vehicle Assistance, Remote
Services, Roadside Assistance, and
Hands-Free Calling are available on
most vehicles. Not all OnStar
services are available everywhere
or on all vehicles. For more
information, a full description of
OnStar services, system limitations,
and OnStar User Terms, Privacy
Statement, and Software Terms:
. Call 1-888-4ONSTAR
(1-888-466-7827).
. See www.onstar.com (U.S.).
. See www.onstar.ca (Canada).
. Call TTY 1-877-248-2080.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-1500-11698638) - 2019 - CRC - 5/13/19
464 Index
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 318
Accessory Power . . . . . . . . . . . . . . . 228
Active Fuel Management . . . . . . . 231
Add-On Electrical Equipment . . . 311
Adding a Snow Plow or Similar Equipment . . . . . . . . . . . . . 312
Additional Information OnStar . . . . . . . . . . . . . . . . . . . . . . . 454
Additional Maintenance and Care . . . . . . . . . . . . . . . . . . . . . . 427
Adjustments Lumbar, Front Seats . . . . . . . . . . . . 72
Air Cleaner/Filter, Engine . . . . . . . 331
Air Conditioning . . . . . . . . . . . 191, 193
Air Filter Life System . . . . . . . . . . . . . . . . . . . 330
Air Filter, Passenger
Compartment . . . . . . . . . . . . . . . . . 197
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 197
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . 99
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . . . 91
Passenger Sensing System . . . . 93
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 91 Airbag System (cont'd)
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . . . 92
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 90
Where Are the Airbags? . . . . . . . . 89
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . . . 98
Passenger Status Indicator . . . 150
Readiness Light . . . . . . . . . . . . . . 149
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . 97
System Check . . . . . . . . . . . . . . . . . . 87
Alarm Vehicle Security . . . . . . . . . . . . . . . . 55
Alert Lane Change . . . . . . . . . . . . . . . . . 272
Side Blind Zone (SBZA) . . . . . . 271
All-Season Tires . . . . . . . . . . . . . . . . 364
All-Terrain Tires . . . . . . . . . . . . . . . . . 365
Antilock Brake System (ABS) . . . 244 Warning Light . . . . . . . . . . . . . . . . . 155
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . 408
Interior . . . . . . . . . . . . . . . . . . . . . . . . 413
Assistance Program, Roadside . . . . . . . . . . . . . . . . . . . . . . 442

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-1500-11698638) - 2019 - CRC - 5/13/19
Index 473
Safety Defects Reporting (cont'd)U.S. Government . . . . . . . . . . . . . 448
Safety Locks . . . . . . . . . . . . . . . . . . . . . 47
Safety System Check . . . . . . . . . . . . 85
Scheduling Appointments . . . . . . . 444
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . 80 Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Extender . . . . . . . . . . . . . . . . . . . . . . . . 85
How to Wear Seat BeltsProperly . . . . . . . . . . . . . . . . . . . . . . . 81
Lap-Shoulder Belt . . . . . . . . . . . . . . 83
Reminders . . . . . . . . . . . . . . . . . . . . 149
Replacing after a Crash . . . . . . . . 86
Use During Pregnancy . . . . . . . . . . 85
Seats Adjustment, Front . . . . . . . . . . . . . . . 70
Center Seat . . . . . . . . . . . . . . . . . . . . 71
Head Restraints . . . . . . . . . . . . . . . . 69
Heated and Ventilated Front . . . . 76
Heated, Rear . . . . . . . . . . . . . . . . . . . 79
Lumbar Adjustment, Front . . . . . . 72
Memory . . . . . . . . . . . . . . . . . . . . . . . . . 74
Power Adjustment, Front . . . . . . . 71
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Reclining Seatbacks . . . . . . . . . . . . 72
Underseat Storage . . . . . . . . . . . 127
Securing Child Restraints . . . . . . . . . . . . . . . . 118, 122 Security
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 160
OnStar . . . . . . . . . . . . . . . . . . . . . . . 454
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 55
Vehicle Alarm . . . . . . . . . . . . . . . . . . . 55
Service . . . . . . . . . . . . . . . . . . . . . . . . . 198 Accessories and
Modifications . . . . . . . . . . . . . . . . 318
Climate Control System . . . . . . . 191
Doing Your Own Work . . . . . . . . 319
Maintenance Records . . . . . . . . 433
Maintenance, General Information . . . . . . . . . . . . . . . . . . 418
Parts Identification Label . . . . . 434
Scheduling Appointments . . . . . 444
Service Electric Parking
Brake Light . . . . . . . . . . . . . . . . . . . . 154
Services Special Application . . . . . . . . . . . 426
Servicing the Airbag . . . . . . . . . . . . . 97
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 229
Out of Park . . . . . . . . . . . . . . . . . . . 230
Side Blind Zone Alert (SBZA) . . . 271
Signals, Turn and Lane-Change . . . . . . . . . . . . . . . . . 184
Snow Plow . . . . . . . . . . . . . . . . . . . . . 312
Special Application Services . . . . 426 Specifications and
Capacities . . . . . . . . . . . . . . . . . . . . . 435
Speedometer . . . . . . . . . . . . . . . . . . . 144
Start Vehicle, Remote . . . . . . . . . . . 44
Starter Switch Check . . . . . . . . . . . 348
Starting the Engine . . . . . . . . . . . . . 224
Steering . . . . . . . . . . . . . . . . . . . . . . . . 202 Heated Wheel . . . . . . . . . . . . . . . . 133
Wheel Adjustment . . . . . . . . . . . . 132
Wheel Controls . . . . . . . . . . . . . . . 133
Steps
Power Assist . . . . . . . . . . . . . . . . . . . 54
Stop/Start System . . . . . . . . . . . . . . 225
Stoplamps and Back-up Lamps Bulb Replacement . . . . . . . . . . . . 352
Storage
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Storage Areas Center Console . . . . . . . . . . . . . . . 127
Floor Console . . . . . . . . . . . . . . . . 128
Glove Box . . . . . . . . . . . . . . . . . . . . 126
Underseat . . . . . . . . . . . . . . . . . . . . 127
Storage Compartments . . . . . . . . . 126
Struts Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . 350
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 211
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 66
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . 66

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-1500-11698638) - 2019 - CRC - 5/13/19
Index 475
Turn SignalBulb Replacement . . . . . . . . . . . . 352
U
Underseat Storage . . . . . . . . . . . . . 127
Uniform Tire Quality Grading . . . 385
Universal Remote System . . . . . . 175
Operation . . . . . . . . . . . . . . . . . . . . . 177
Programming . . . . . . . . . . . . . . . . . 175
Using This Manual . . . . . . . . . . . . . . . . 2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . 55
Canadian Owners . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . 201
Identification Number (VIN) . . . 434
Load Limits . . . . . . . . . . . . . . . . . . . 212
Messages . . . . . . . . . . . . . . . . . . . . 169
Personalization . . . . . . . . . . . . . . . 170
Remote Start . . . . . . . . . . . . . . . . . . . 44
Security . . . . . . . . . . . . . . . . . . . . . . . . 55
Speed Messages . . . . . . . . . . . . . 170
Towing . . . . . . . . . . . . . . . . . . . . . . . . 403
Vehicle Ahead Indicator . . . . . . . . 156
Vehicle Care Tire Pressure . . . . . . . . . . . . . . . . . 372
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . 450 Ventilation, Air . . . . . . . . . . . . . . . . . . 197
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Voltmeter Gauge . . . . . . . . . . . . . . . 148
W
Warning
Brake System Light . . . . . . . . . . . 153
Caution and Danger . . . . . . . . . . . . . 3
Lane Departure (LDW) . . . . . . . 274
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . 139
Warnings
Hazard Flashers . . . . . . . . . . . . . . 183
Washer Fluid . . . . . . . . . . . . . . . . . . . 339
Wheels Alignment and Tire Balance . . 386
Different Size . . . . . . . . . . . . . . . . . 384
Replacement . . . . . . . . . . . . . . . . . 386
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 382
Where to Put the Restraint . . . . . 105
Windows . . . . . . . . . . . . . . . . . . . . . . . . 63
Manual . . . . . . . . . . . . . . . . . . . . . . . . . 64
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Windshield
Replacement . . . . . . . . . . . . . . . . . 350
Wiper/Washer . . . . . . . . . . . . . . . . 133 Winter
Driving . . . . . . . . . . . . . . . . . . . . . . . . 210
Winter Tires . . . . . . . . . . . . . . . . . . . . 364
Wiper Blade Replacement . . . . . . 349
Wireless Charging . . . . . . . . . . . . . . 137