2024 GMC SIERRA phone

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/13/22
Driving and Operating 199
Trailer Towing
General Towing Information . . . . . . . . . . . 276
Driving Characteristics andTowing Tips . . . . . . . . . . . . . . . . . . . . . . . . . 276
Trailer Towing . . . . . . . . . . . . . . . . . . . . . . . . 280
Towing Equipment . . . . . . . . . . . . . . . . . . . . 284
Trailer Sway Control (TSC) . . . . . . . . . . . . . 294
Trailering App . . . . . . . . . . . . . . . . . . . . . . . . . 296
Conversions and Add-Ons
Add-On Electrical Equipment . . . . . . . . . . 306
Adding a Snow Plow or Similar Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . 306
Pickup Conversion to Chassis Cab . . . . . 308
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.

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/13/22
200 Driving and Operating
.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 057.
.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.

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/13/22
Driving and Operating 305
On the pop-up, touch Remove to remove the
Trailer Profile from the vehicle. Touch Cancel
to dismiss the pop-up and return to the
previous view.
Remove is displayed if there is a connected
OnStar plan active with the vehicle.
Removing a trailer profile will remove the
profile from the vehicle but the profile will
still be associated with the user account.
However, if there is not a connected OnStar
plan, then the remove button will read
DELETE and the profile will be deleted
permanently.
Set as Default Trailer
Touch Set as Default Trailer to select the
current profile as default.
The default Trailer profile will be
automatically selected each time a new
connection is detected. The Trailer Detection
Alert will no longer appear.
If this setting is turned off, the current
trailer profile is not the default trailer.GCW Alerts
Touch GCW Alert to turn on/off the GCW
Alert for the selected profile. These alerts
are based on the Trailer Profile, so the
settings for each Trailer Profile must be
turned on or off.
Turn this setting off to not receive GCW
Alerts in the DIC when that Trailer Profile is
active.
Maintenance Alerts
Touch Maintenance Alert to turn on/off
Maintenance Alerts for the selected profile.
These alerts are based on the Trailer Profile,
so the settings for each Trailer Profile must
be turned on or off.
All Maintenance Alerts for that active Trailer
Profile will be received when the setting
is on.
Turn this setting off to dismiss Maintenance
Alerts when that Trailer Profile is active.
Theft Alert
Theft 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 Theft Alert to turn on/off Theft Alerts
for the selected profile. These alerts are
based on the Trailer Profile, so the settings
for each Trailer Profile must be turned on
or off.
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.
Tow/Haul Mode Reminder
This is a reminder to turn on the Tow/Haul
Mode when towing a trailer. See
Driver
Mode Control 0238.
Touch Tow/Haul Mode Reminder to turn
on/off Tow/Haul Mode reminders for the
selected profile. These alerts are based on
the Trailer Profile, so the settings for each
Trailer Profile must be turned on or off.

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
Customer Information 405
Customer Information
Customer Information
Customer Satisfaction Procedure . . . . . . 405
Customer Assistance Offices . . . . . . . . . . . 407
Customer Assistance for Text Telephone(TTY) Users . . . . . . . . . . . . . . . . . . . . . . . . . . 407
Online Account . . . . . . . . . . . . . . . . . . . . . . . . 407
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . 408
Roadside Assistance Program . . . . . . . . . 408
Scheduling Service Appointments . . . . . . 410
Courtesy Transportation Program . . . . . 410
Collision Damage Repair . . . . . . . . . . . . . . . 411
Publication Ordering Information . . . . . . 413
Radio Frequency Statement . . . . . . . . . . . . 413
Reporting Safety Defects
Reporting Safety Defects to the United States Government . . . . . . . . . . . . . . . . . . 414
Reporting Safety Defects to the Canadian Government . . . . . . . . . . . . . . . 414
Reporting Safety Defects to General Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 414
Vehicle Data Recording and Privacy
Vehicle Data Recording and Privacy . . . . 415
Cybersecurity . . . . . . . . . . . . . . . . . . . . . . . . . . 415
Event Data Recorders . . . . . . . . . . . . . . . . . . 415
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 416
Infotainment System . . . . . . . . . . . . . . . . . . 416Customer Information
Customer Satisfaction Procedure
Your satisfaction and goodwill are important
to your dealer and to GMC. Normally, any
concerns with the sales transaction or the
operation of the vehicle will be resolved by
your dealer's sales or service departments.
Sometimes, however, despite the best
intentions of all concerned,
misunderstandings can occur. If your concern
has not been resolved to your satisfaction,
the following steps should be taken:
STEP ONE : Discuss your concern with a
member of dealership management.
Normally, concerns can be quickly resolved
at that level. If the matter has already been
reviewed with the sales, service, or parts
manager, contact the owner of your
dealership or the general manager.
STEP TWO : If after contacting a member of
dealership management, it appears your
concern cannot be resolved by your
dealership without further help, in the U.S.,
call 1-800-462-8782. In Canada, call General
Motors of Canada Customer Care Centre at
1-800-263-3777 (English), or 1-800-263-7854
(French).

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
406 Customer Information
We encourage you to call the toll-free
number in order to give your inquiry
prompt attention. Have the following
information available to give the Customer
Assistance representative:
.Vehicle Identification Number (VIN). This is
available from the vehicle registration or
title, or the plate at the top left of the
instrument panel and visible through the
windshield.
.Dealership name and location.
.Vehicle delivery date and present mileage.
When contacting GMC, remember that your
concern will likely be resolved at a dealer's
facility. That is why we suggest following
Step One first.
STEP THREE —U.S. Owners : Both General
Motors and your dealer are committed to
making sure you are completely satisfied
with your new vehicle. However, if you
continue to remain unsatisfied after
following the procedure outlined in
Steps One and Two, you can file with the
Better Business Bureau (BBB) AUTO LINE
Program to enforce your rights. The BBB AUTO LINE Program is an
out-of-court program administered by the
BBB National Programs, Inc. to settle
automotive disputes regarding vehicle
repairs or the interpretation of the New
Vehicle Limited Warranty. Although you
may be required to resort to this informal
dispute resolution program prior to filing a
court action, use of the program is free of
charge and your case will generally be heard
within 40 days. If you do not agree with the
decision given in your case, you may reject
it and proceed with any other venue for
relief available to you.
You may contact the BBB AUTO LINE
Program using the toll-free telephone
number or write them at the following
address:
BBB Auto Line a Division of
BBB National Programs, Inc.
1676 International Drive
Suite 550
McLean, VA 22102
Telephone: 1-800-955-5100
www.bbbautoline.org
This program is available in all 50 states and
the District of Columbia. Eligibility is limited
by vehicle age, mileage, and other factors.
General Motors reserves the right to change
eligibility limitations and/or discontinue its
participation in this program.
STEP THREE
—Canadian Owners : In the
event that you do not feel your concerns
have been addressed after following the
procedure outlined in Steps One and Two,
General Motors of Canada Company wants
you to be aware of its participation in a
no-charge Mediation/Arbitration Program.
General Motors of Canada Company has
committed to binding arbitration of owner
disputes involving factory-related vehicle
service claims. The program provides for the
review of the facts involved by an impartial
third party arbiter, and may include an
informal hearing before the arbiter. The
program is designed so that the entire
dispute settlement process, from the time
you file your complaint to the final decision,
should be completed in about 70 days. We
believe our impartial program offers
advantages over courts in most jurisdictions
because it is informal, quick, and free of
charge.

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
Customer Information 407
For further information concerning eligibility
in the Canadian Motor Vehicle Arbitration
Plan (CAMVAP), call toll-free 1-800-207-0685,
or call the General Motors Customer Care
Centre, 1-800-263-3777 (English),
1-800-263-7854 (French), or write to:
Mediation/Arbitration Program
c/o Customer Care Centre
General Motors of Canada Company
500 Wentworth Street W
Oshawa, ON L1J 0C5
Your inquiry should be accompanied by the
Vehicle Identification Number (VIN).
Customer Assistance Offices
GMC is committed to assisting customers.
Visit us online at www.gmc.com/support
(U.S.) or www.mygmc.ca (Canada) to chat
with us or find answers to commonly asked
questions, tips, vehicle how-to instructions,
and available support.
Need more help? Use the phone numbers or
mailing addresses below for additional
assistance.
United States and Puerto Rico
GMC Customer Assistance Center
P.O. Box 33172
Detroit, MI 48232-5172
1-800-GMC-8782 (1-800-462-8782)
TTY: Dial 711 relay service and contact
1-800-833-2438
Roadside Assistance: 1-888-881-3302
Canada
Customer Care Centre
General Motors of Canada Company
500 Wentworth Street W
Oshawa, ON L1J 0C5
1-800-263-3777 (English)
1-800-263-7854 (French)
1-800-263-3830 (For Text Telephone Devices
(TTYs))
Roadside Assistance: 1-800-268-6800
Overseas
Please contact the local General Motors
Business Unit.
Customer Assistance for Text
Telephone (TTY) Users
To assist customers who are deaf, hard of
hearing, or speech-impaired and/or who use
Text Telephones (TTYs), GMC is able to
assist. Please dial the national 711 relay
service and contact 1-800-833-2438. TTY users
in Canada can dial 1-800-263-3830.
Online Account
Create a GMC Account (U.S.) at gmc.com
Learn more about your vehicle features,
shop for and manage your connected
services and OnStar plans, and access
diagnostic information specific to your
vehicle.
Membership Benefits
E:Download owner’s manuals and view
vehicle-specific how-to videos.
G: View maintenance schedules, alerts, and
Vehicle Diagnostic Information. Schedule
service appointments.
I: View service records from your
dealership and add your own.

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
408 Customer Information
D:Select a dealer and view locations,
maps, phone numbers, and hours.
r: Track your vehicle’s warranty
information.
J: View active recalls by Vehicle
Identification Number (VIN). See Vehicle
Identification Number (VIN) 0401.
H:Manage your profile and payment
information. View your GM Rewards Card
earnings and My GMC Rewards points.
F: Chat live with online help
representatives.
Visit gmc.com and create an account today.
GMC Owner Centre (Canada)
mygmccanada.ca
Visit the GMC Owner Centre at
mygmccanada.ca (English) or
my.gmccanada.ca (French) to access similar
benefits to the U.S. site.
GM Mobility Reimbursement
Program
This program is available to qualified
applicants for cost reimbursement, up to
certain limits, of eligible aftermarket
adaptive equipment required for the vehicle,
such as hand controls or a wheelchair/
scooter lift for the vehicle.
To learn about the GM Mobility program,
see www.gmmobility.com or call the GM
Mobility Assistance Center at 1-800-323-9935.
Text Telephone (TTY) users, please dial the
national 711 relay service and contact
1-800-323-9935.
General Motors of Canada also has a
Mobility program. See www.gm.ca, or call
1-800-GM-DRIVE (800-463-7483) for details.
TTY users call 1-800-263-3830.
Roadside Assistance Program
For U.S.-purchased vehicles, call
1-888-881-3302; (Text Telephone (TTY):
1-888-889-2438).
For Canadian-purchased vehicles, call
1-800-268-6800.
Service is available 24 hours a day, 365 days
a year.
Calling for Assistance
When calling Roadside Assistance, have the
following information ready:
.Your name, home address, and home
telephone number
.Telephone number of your location
.Location of the vehicle
.Model, year, color, and license plate
number of the vehicle
.Odometer reading and Vehicle
Identification Number (VIN)
.Description of the problem
Coverage
Services are provided for the duration of the
vehicle's powertrain warranty.

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16908340) - 2024 - CRC - 12/7/22
412 Customer Information
Insuring the Vehicle
Protect your investment in the GM vehicle
with comprehensive and collision insurance
coverage. There are significant differences in
the quality of coverage afforded by various
insurance policy terms. Many insurance
policies provide reduced protection to the
GM vehicle by limiting compensation for
damage repairs through the use of
aftermarket collision parts. Some insurance
companies will not specify aftermarket
collision parts. When purchasing insurance,
we recommend that you ensure that the
vehicle will be repaired with GM original
equipment collision parts. If such insurance
coverage is not available from your current
insurance carrier, consider switching to
another insurance carrier.
If the vehicle is leased, the leasing company
may require you to have insurance that
ensures repairs with Genuine GM Original
Equipment Manufacturer (OEM) parts or
Genuine Manufacturer replacement parts.
Read the lease carefully, as you may be
charged at the end of the lease for poor
quality repairs.
If a Crash Occurs
If there has been an injury, call emergency
services for help. Do not leave the scene of
a crash until all matters have been taken
care of. Move the vehicle only if its position
puts you in danger, or you are instructed to
move it by a police officer.
Give only the necessary information to
police and other parties involved in the
crash.
For emergency towing seeRoadside
Assistance Program 0408.
Gather the following information:
.Driver name, address, and telephone
number
.Driver license number
.Owner name, address, and telephone
number
.Vehicle license plate number
.Vehicle make, model, and model year
.Vehicle Identification Number (VIN)
.Insurance company and policy number
.General description of the damage to the
other vehicle Choose a reputable repair facility that uses
quality replacement parts. See
“Collision
Parts” earlier in this section.
If the airbag has inflated, see What Will You
See after an Airbag Inflates? 068.
Managing the Vehicle Damage Repair
Process
In the event that the vehicle requires
damage repairs, GM recommends that you
take an active role in its repair. If you have
a pre-determined repair facility of choice,
take the vehicle there, or have it towed
there. Specify to the facility that any
required replacement collision parts be
original equipment parts, either new
Genuine GM parts or recycled original GM
parts. Remember, recycled parts will not be
covered by the GM vehicle warranty.
Insurance pays the bill for the repair, but
you must live with the repair. Depending on
your policy limits, your insurance company
may initially value the repair using
aftermarket parts. Discuss this with the
repair professional, and insist on Genuine
GM parts. Remember, if the vehicle is
leased, you may be obligated to have the