2021 GMC SIERRA steering

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
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176 Infotainment System
command. Another example of a one-shot
Destination Entry command is,“Directions to
Place of Interest at .” If these
commands do not work, try saying, “Take
me to Place of Interest” or“Find address”
and the system will walk you through by
asking additional questions.
Hybrid Speech Recognition
If equipped, this feature helps distinguish
words by using Internet-based information
along with the system’s voice recognition
database. This allows you to speak more
naturally when using voice recognition.
Using Voice Recognition
Voice recognition becomes available once
the system has been initialized. This begins
when the ignition is turned on. Initialization
may take a few moments.
1. Press
gon the steering wheel controls
to activate voice recognition.
2. The audio system mutes and the system plays a prompt.
3. Clearly speak one of the commands described in this section.
A voice recognition system prompt can
be interrupted while it is playing by
pressing
gagain. Once voice recognition is started, both the
infotainment display and instrument cluster
show the selections and visual dialog
content. These displays can be turned on or
off in the Tutorial Mode under
Settings
0 186.
There are three voice prompt modes
supported:
.Informative verbal prompts: This type of
prompt will provide more information
regarding the supported actions.
.Short prompts: This type of prompt will
provide simple instructions about what
can be stated.
.Auto informative prompts: This type of
prompt plays during the first few speech
sessions, then automatically switches to
the short prompt after some experience
has been gained through using the
system.
If a command is not spoken, the voice
recognition system says a help prompt.
Prompts and Infotainment Displays
While a voice recognition session is active,
there may be corresponding options
showing on the displays. A selection can be
made by manually touching the option,
or by speaking the number for the option to select. Manual interaction in the voice
recognition session is permitted. Interaction
during a voice session may be completed
entirely using voice commands while some
manual commands may expedite a task. If a
selection is made using a manual control,
the voice recognition dialog will progress in
the same way as if the selection were made
using a voice command. Once the system
completes the task, or the session is
terminated, the voice recognition dialog
stops.
An example of this type of manual
intervention is touching an entry of a
displayed number list instead of speaking
the number associated with the entry
desired.
Canceling Voice Recognition
.Touch or say
“Cancel”or“Exit” to
terminate the voice recognition session
and show the display where voice
recognition was initiated.
.Pression the steering wheel controls
to terminate the voice recognition session
and show the display where voice
recognition was initiated.

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180 Infotainment System
“Address”:Begin a dialog to enter a
specific destination address, which includes
the entire address consisting of the house
number, street name, city, state/province,
and country. Do not include the ZIP code.
“Place of Interest” :Begin a dialog to enter
a destination Place of Interest category or
major brand name.
The name must be precisely spoken.
Nicknames or short names for the
businesses will not likely be found. Lesser
known businesses might have to be located
by category, such as fast food, hotels,
or banks.
“Navigate to Contact” :Begin a dialog to
enter a specific destination contact name.
“Cancel Route” :End route guidance.
“Take Me Home” :Create a route to a
stored home location.
Voice Recognition for the Phone
“Call ” :Initiate a call to a
stored contact. The command may include
location if the contact has location numbers
stored. “Call At Home,” “At Work,” “On
Mobile,”
or“On Other” :Initiate a call to a
stored contact and location at home, at
work, on mobile device, or on another
phone.
“Call ” :Initiate a call
to a cell phone number of seven digits, 10
digits, or three digit emergency numbers.
“Pair Phone” :Begin the Bluetooth pairing
process. Follow the instructions on the
infotainment display.
“Redial” :Initiate a call to the last dialed
number.
“Switch Phone” :Select a different
connected cell phone for outgoing calls.
“Voice Keypad” :Begin a dialog to enter
special numbers like international numbers.
The numbers can be entered in groups of
digits with each group of digits being
repeated back by the system. If the group
of digits is not correct, the command
“Delete” will remove the last group of digits
and allow them to be re-entered. Once the
entire number has been entered, the
command “Call”will start dialing the
number.
Phone Assistant Voice Recognition
Press and holdgon the steering wheel
controls to pass through and launch Google
phone assistant or Siri.
For the low radio, whether connected by
Bluetooth or phone projection, the only
available voice recognition is either Siri
(iPhone) or the Google Assistant (Android).
Phone
Bluetooth (Overview)
The Bluetooth-capable system can interact
with many mobile devices, allowing:
.Placement and receipt of calls in a
hands-free mode.
.Sharing of the device’s address book or
contact list with the vehicle.
To minimize driver distraction, before
driving, and with the vehicle parked:
.Become familiar with the features of the
mobile device. Organize the phone book
and contact lists clearly and delete
duplicate or rarely used entries.
If possible, program speed dial or other
shortcuts.

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Infotainment System 181
.Review the controls and operation of the
infotainment system.
.Pair mobile device(s) to the vehicle. The
system may not work with all mobile
devices. See“Pairing”later in this section.
Vehicles with a Bluetooth system can use a
Bluetooth-capable mobile device with a
Hands-Free Profile to make and receive
phone calls. The infotainment system and
voice recognition are used to control the
system. The system can be used while the
ignition is on or in ACC/ACCESSORY. The
range of the Bluetooth system can be up to
9.1 m (30 ft). Not all mobile devices support
all functions and not all mobile devices work
with the Bluetooth system. See my.gmc.com
for more information about compatible
mobile devices.
Controls
Use the controls on the center stack and the
steering wheel to operate the Bluetooth
system.
Steering Wheel Controls
g: Press to answer incoming calls and start
voice recognition on your connected
Bluetooth mobile device.
i: Press to end a call, decline a call,
or cancel an operation. Press to mute or
unmute the infotainment system when not
on a call.
Infotainment System Controls
For information about how to navigate the
menu system using the infotainment
controls, see Using the System 0152.
Audio System
When using the Bluetooth mobile device
system, sound comes through the vehicle's
front audio system speakers and overrides
the audio system. The volume level while on
a mobile device call can be adjusted by
pressing the steering wheel controls or the
volume control on the center stack. The
adjusted volume level remains in memory
for later calls. The volume cannot be
lowered beyond a certain level.
Bluetooth (Pairing and Using a
Phone)
Pairing
A Bluetooth-enabled mobile device must be
paired to the Bluetooth system and then
connected to the vehicle before it can be used. See the mobile device manufacturer's
user guide for Bluetooth functions before
pairing the device.
Pairing Information
.If no mobile device has been connected,
the Phone main page on the infotainment
display will show the Connect Phone
option. Touch this option to connect.
Another way to connect is to touch the
Phones tab at the top right of the display
and then touch Add Phone.
.A Bluetooth smartphone with music
capability can be paired to the vehicle as
a smartphone and a music player at the
same time.
.Up to 10 devices can be paired to the
Bluetooth system.
.The pairing process is disabled when the
vehicle is moving.
.Pairing only needs to be completed once,
unless the pairing information on the cell
phone changes or the cell phone is
deleted from the system.
.If multiple paired cell phones are within
range of the system, the system connects
to the paired cell phone that is set to
First to Connect. If there is no cell phone
set to First to Connect, it will link to the

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184 Infotainment System
To make a call using the Recents menu:1. Touch Phone on the Home Page.
2. Touch Recents.
3. Touch the name or number to call.
Making a Call Using the Keypad
To make a call by dialing the numbers:1. Touch the Phone icon on the Home Page.
2. Touch Keypad and enter a phone number.
3. Touch
#on the infotainment display to
start dialing the number.
Searching Contacts Using the Keypad
To search for contacts using the keypad:
1. Touch the Phone icon on the Home Page.
2. Touch Keypad and enter partial phone numbers or contact names using the
digits on the keypad to search.
Results will show on the right side of the
display. Touch one to place a call.
Accepting or Declining a Call
When an incoming call is received, the
infotainment system mutes and a ring tone
is heard in the vehicle. Accepting a Call
There are two ways to accept a call:
.Pressgon the steering wheel controls.
.Touch Answer on the infotainment
display.
Declining a Call
There are two ways to decline a call:
.Pression the steering wheel controls.
.Touch Ignore on the infotainment display.
Call Waiting
Call waiting must be supported on the
Bluetooth cell phone and enabled by the
wireless service carrier to work.
Accepting a Call
Press
gto answer, then touch Switch on
the infotainment display.
Declining a Call
Press
ito decline, then touch Ignore on
the infotainment display Switching Between Calls (Call Waiting
Calls Only)
To switch between calls, touch Phone on the
Home Page to display Call View. While in
Call View, touch the call information of the
call on hold to change calls.
Three-Way Calling
Three-way calling must be supported on the
Bluetooth cell phone and enabled by the
wireless service carrier to work.
To start a three-way call while in a
current call:
1. In the Call View, touch Add Call to add another call.
2. Initiate the second call by selecting from Recents, Contacts, or Keypad.
3. When the second call is active, touch the merge icon to conference the three-way
call together.
Ending a Call
.Pression the steering wheel controls.
.Touch#on the infotainment display,
next to a call, to end only that call.

GMC Sierra/Sierra Denali 1500 Owner Manual (GMNA-Localizing-U.S./
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208 Climate Controls
Changing the mode cancels the automatic
operation and the system goes into manual
mode. Press AUTO to return to automatic
operation.
To change the current mode, select one or
more of the following:
z:Air is directed to the windshield,
outboard a/c outlets, and side window
outlets.
Y: Air is directed to the a/c outlets.
[:Air is directed to the floor outlets,
with some air directed to the windshield,
outboard a/c outlets, and side window
outlets.
0MAX : Air is directed to the windshield
and the fan runs at a higher speed if not
already above a medium fan speed. This
mode overrides the previous mode selected
and clears fog or frost from the windshield
more quickly. When the control is pressed
again, the system returns to the previous
mode setting and fan speed.
For best results, clear all snow and ice from
the windshield before defrosting.
@: Press to turn on recirculation. An
indicator light comes on. Air is recirculated
to quickly cool the inside of the vehicle.
It can also be used to help reduce outside
air and odors that enter the vehicle.
Avoid using recirculation for long periods of
time in cold or damp conditions. Using
recirculation in cold or damp conditions can
result in window fogging.
A/C : Press to turn the air conditioning on
or off. An indicator light comes on to show
that the air conditioning is enabled. If the
fan is turned off, the air conditioner will not
run. The A/C light will stay on even if the
outside temperatures are below freezing.
Rear Window Defogger
1REAR : If equipped, press to turn the
rear window defogger on or off. An indicator
light on the button comes on to show that
the rear window defogger is on.
The rear window defogger only works when
the engine is running. The defogger turns
off if the ignition is turned off or to ACC/
ACCESSORY.
If equipped with heated outside mirrors,
press
fto turn them on or off. See Heated
Mirrors 037.
Caution
Using a razor blade or sharp object to
clear the inside rear window can damage
the rear window defogger. Repairs would
not be covered by the vehicle warranty.
Do not clear the inside rear window with
sharp objects.
Remote Start Climate Control Operation :
If equipped with remote start, the climate
control system may run when the vehicle is
started remotely. If equipped with heated or
ventilated seats or a heated steering wheel,
these features may come on during a
remote start. See Remote Vehicle Start 020,
Heated and Ventilated Front Seats 052, and
Heated Steering Wheel 0100.
Sensors

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Driving and Operating 211
Driving and Operating
Driving Information
Driving for Better Fuel Economy . . . . . . . 212
Distracted Driving . . . . . . . . . . . . . . . . . . . . . . 212
Defensive Driving . . . . . . . . . . . . . . . . . . . . . . 213
Impaired Driving . . . . . . . . . . . . . . . . . . . . . . . 213
Control of a Vehicle . . . . . . . . . . . . . . . . . . . . 213
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 214
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . . 215
Off-Road Driving . . . . . . . . . . . . . . . . . . . . . . . 215
Driving on Wet Roads . . . . . . . . . . . . . . . . . 219
Hill and Mountain Roads . . . . . . . . . . . . . . 219
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . 220
If the Vehicle Is Stuck . . . . . . . . . . . . . . . . . . 221
Vehicle Load Limits . . . . . . . . . . . . . . . . . . . . 222
Truck-Camper Loading Information . . . . 226
Starting and Operating
New Vehicle Break-In . . . . . . . . . . . . . . . . . . 228
Ignition Positions (Key Access) . . . . . . . . 229
Ignition Positions (Keyless Access) . . . . . 230
Starting the Engine . . . . . . . . . . . . . . . . . . . . 232
Stop/Start System . . . . . . . . . . . . . . . . . . . . . 233
Engine Heater . . . . . . . . . . . . . . . . . . . . . . . . . 234
Retained Accessory Power (RAP) . . . . . . . 236
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . 236
Shifting out of Park . . . . . . . . . . . . . . . . . . . 237Parking over Things That Burn . . . . . . . . . 237
Active Fuel Management . . . . . . . . . . . . . . 237
Extended Parking . . . . . . . . . . . . . . . . . . . . . . 238
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . . . . . . . . . . . 238
Running the Vehicle While Parked . . . . . 238
Automatic Transmission
Automatic Transmission . . . . . . . . . . . . . . . 239
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . 241
Tow/Haul Mode . . . . . . . . . . . . . . . . . . . . . . . 242
Drive Systems
Four-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . 242
Brakes
Electric Brake Boost . . . . . . . . . . . . . . . . . . . 246
Antilock Brake System (ABS) . . . . . . . . . . 246
Electric Parking Brake . . . . . . . . . . . . . . . . . . 247
Brake Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Hill Start Assist (HSA) . . . . . . . . . . . . . . . . . 248
Ride Control Systems
Traction Control/Electronic Stability
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Hill Descent Control (HDC) . . . . . . . . . . . . 250
Driver Mode Control . . . . . . . . . . . . . . . . . . . 251
Limited-Slip Differential . . . . . . . . . . . . . . . . 254
Locking Rear Axle . . . . . . . . . . . . . . . . . . . . . 254
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . 254
Adaptive Cruise Control (Camera) . . . . . . 256
Driver Assistance Systems
Driver Assistance Systems . . . . . . . . . . . . . 265
Assistance Systems for Parking or Backing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Assistance Systems for Driving . . . . . . . . 274
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
Automatic Emergency Braking (AEB) . . . 277
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Side Blind Zone Alert (SBZA) . . . . . . . . . . 280
Lane Change Alert (LCA) . . . . . . . . . . . . . . . 280
Lane Keep Assist (LKA) . . . . . . . . . . . . . . . . . 281
Fuel
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 283
Recommended Fuel (Except 6.2L V8 Engine) . . . . . . . . . . . . . . . . . . . . . . . . . . . 283
Recommended Fuel (6.2L V8 Engine) . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . 284
Fuels in Foreign Countries . . . . . . . . . . . . . 284
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . 284
E85 or FlexFuel . . . . . . . . . . . . . . . . . . . . . . . . 284
Filling the Tank (Pickup Model) . . . . . . . . 285
Filling the Tank (Chassis Cab Model) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287

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212 Driving and Operating
Filling a Portable Fuel Container . . . . . . . 288
Trailer Towing
General Towing Information . . . . . . . . . . 288
Driving Characteristics andTowing Tips . . . . . . . . . . . . . . . . . . . . . . . . . 288
Trailer Towing . . . . . . . . . . . . . . . . . . . . . . . . . 293
Towing Equipment . . . . . . . . . . . . . . . . . . . . 296
Trailer Sway Control (TSC) . . . . . . . . . . . . 306
Trailering App . . . . . . . . . . . . . . . . . . . . . . . . . 307
Conversions and Add-Ons
Add-On Electrical Equipment . . . . . . . . . . . 318
Adding a Snow Plow or Similar Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . 318
Pickup Conversion to Chassis Cab . . . . . 320
Driving Information
Driving for Better Fuel Economy
Driving habits can affect fuel mileage. Here
are some driving tips to get the best fuel
economy possible:
.Set the climate controls to the desired
temperature after the engine is started,
or turn them off when not required.
.Avoid fast starts and accelerate smoothly.
.Brake gradually and avoid abrupt stops.
.Avoid idling the engine for long periods
of time.
.When road and weather conditions are
appropriate, use cruise control.
.Always follow posted speed limits or
drive more slowly when conditions
require.
.Keep vehicle tires properly inflated.
.Combine several trips into a single trip.
.Replace the vehicle's tires with the same
TPC Spec number molded into the tire's
sidewall near the size.
.Follow recommended scheduled
maintenance.
Distracted Driving
Distraction comes in many forms and can
take your focus from the task of driving.
Exercise good judgment and do not let other
activities divert your attention away from
the road. Many local governments have
enacted laws regarding driver distraction.
Become familiar with the local laws in
your area.
To avoid distracted driving, keep your eyes
on the road, keep your hands on the
steering wheel, and focus your attention on
driving.
.Do not use a phone in demanding driving
situations. Use a hands-free method to
place or receive necessary phone calls.
.Watch the road. Do not read, take notes,
or look up information on phones or
other electronic devices.
.Designate a front seat passenger to
handle potential distractions.
.Become familiar with vehicle features
before driving, such as programming
favorite radio stations and adjusting
climate control and seat settings. Program
all trip information into any navigation
device prior to driving.

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Driving and Operating 213
.Wait until the vehicle is parked to
retrieve items that have fallen to the
floor.
.Stop or park the vehicle to tend to
children.
.Keep pets in an appropriate carrier or
restraint.
.Avoid stressful conversations while
driving, whether with a passenger or on a
cell phone.
{Warning
Taking your eyes off the road too long or
too often could cause a crash resulting in
injury or death. Focus your attention on
driving.
Refer to the infotainment section for more
information on using that system and the
navigation system, if equipped, including
pairing and using a cell phone.
Defensive Driving
Defensive driving means “always expect the
unexpected.” The first step in driving
defensively is to wear the seat belt. See
Seat Belts 054.
.Assume that other road users
(pedestrians, bicyclists, and other drivers)
are going to be careless and make
mistakes. Anticipate what they may do
and be ready.
.Allow enough following distance between
you and the driver in front of you.
.Focus on the task of driving.
Impaired Driving
Death and injury associated with impaired
driving is a global tragedy.
{Warning
Drinking alcohol or taking drugs and then
driving is very dangerous. Your reflexes,
perceptions, attentiveness, and judgment
can be affected by even a small amount
of alcohol or drugs. You can have a
serious —or even fatal —collision if you
drive after drinking or taking drugs.
Do not drive while under the influence of
alcohol or drugs, or ride with a driver
who has been drinking or is impaired by
drugs. Find alternate transportation
home; or if you are with a group,
designate a driver who will remain sober.
Control of a Vehicle
Braking, steering, and accelerating are
important factors in helping to control a
vehicle while driving.
Braking
Braking action involves perception time and
reaction time. Deciding to push the brake
pedal is perception time. Actually doing it is
reaction time.
Average driver reaction time is about
three-quarters of a second. In that time, a
vehicle moving at 100 km/h (60 mph) travels
20 m (66 ft), which could be a lot of
distance in an emergency.
Helpful braking tips to keep in mind include:
.Keep enough distance between you and
the vehicle in front of you.
.Avoid needless heavy braking.
.Keep pace with traffic.
If the engine ever stops or a brake fault
occurs, the brakes may lose power assist.
More effort will be required to stop the
vehicle. It may take longer to stop.