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Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-15546003) - 2022 - CRC - 5/5/21
398 Service and Maintenance
and contaminate the fluid. Contaminated
fluid will decrease the life of the transfer
case and/or drive axles and should be
replaced.
(4)Or every five years, whichever comes
first. See Cooling System 0316.
(5) Or every 10 years, whichever comes first.
Inspect for fraying, excessive cracking,
or damage; replace, if needed.
(6) Replace brake fluid every five years. See
Brake Fluid 0323.
(7) Or every 12 months, whichever comes
first. See Wiper Blade Replacement 0328.
(8) Or every 10 years, whichever comes first.
See Gas Strut(s) 0329.
(9) Replace air conditioning desiccant every
seven years.
Special Application Services
.Vehicles with Dual Wheels: Check dual
wheel nut torque at 160, 1 600, and
10 000 km (100, 1,000, and 6,000 mi) of
driving. Repeat this service whenever a
tire/wheel is serviced or removed.
.Severe Commercial Use Vehicles Only:
Lubricate chassis components every oil
change.
.Have underbody flushing service
performed. See “Underbody Maintenance”
in Exterior Care 0381.
Additional Maintenance
and Care
Your vehicle is an important investment and
caring for it properly may help to avoid
future costly repairs. To maintain vehicle
performance, additional maintenance
services may be required.
It is recommended that your dealer perform
these services —their trained dealer
technicians know your vehicle best. Your
dealer can also perform a thorough
assessment with a multi-point inspection to
recommend when your vehicle may need
attention.
The following list is intended to explain the
services and conditions to look for that may
indicate services are required. Battery
The 12-volt battery supplies power to start
the engine and operate any additional
electrical accessories.
.To avoid break-down or failure to start
the vehicle, maintain a battery with full
cranking power.
.Trained dealer technicians have the
diagnostic equipment to test the battery
and ensure that the connections and
cables are corrosion-free.
Belts
.Belts may need replacing if they squeak
or show signs of cracking or splitting.
.Trained dealer technicians have access to
tools and equipment to inspect the belts
and recommend adjustment or
replacement when necessary.
Brakes
Brakes stop the vehicle and are crucial to
safe driving.
.Signs of brake wear may include chirping,
grinding, or squealing noises, or difficulty
stopping.

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-15546003) - 2022 - CRC - 5/5/21
426 Connected Services
Ensuring Security
.Change the default passwords for the
Wi-Fi hotspot and myChevrolet mobile
application. Make these passwords
different from each other and use a
combination of letters and numbers
to increase the security.
.Change the default name of the SSID
(Service Set Identifier). This is your
network’s name that is visible to other
wireless devices. Choose a unique name
and avoid family names or vehicle
descriptions.
Wi-Fi Hotspot (If Equipped)
The vehicle may have a built-in Wi-Fi
hotspot that provides access to the Internet
and web content at 4G LTE speed. Up to
seven mobile devices can be connected.
A data plan is required. Use the in-vehicle
controls only when it is safe to do so. 1. To retrieve Wi-Fi hotspot information, press
=to open the OnStar app on the
infotainment display, then select Wi-Fi
Hotspot. On some vehicles, touch Wi-Fi
or Wi-Fi Settings on the screen. 2. The Wi-Fi settings will display the Wi-Fi
hotspot name (SSID), password, and on
some vehicles, the connection type (no
Internet connection, 3G, 4G, 4G LTE), and
signal quality (poor, good, excellent).
3. To change the SSID or password, press
Qor call 1-888-4ONSTAR to connect
with an Advisor. On some vehicles, the
SSID and password can be changed in
the Wi-Fi Hotspot menu.
After initial set-up, your vehicle’s Wi-Fi
hotspot will connect automatically to your
mobile devices. Manage data usage by
turning Wi-Fi on or off on your mobile
device, using the myChevrolet mobile app,
or by contacting an OnStar Advisor. On
some vehicles, Wi-Fi can also be managed
from the Wi-Fi Hotspot menu.
MyChevrolet Mobile App (If Available)
Download the myChevrolet mobile app to
compatible Apple and Android smartphones.
Chevrolet users can access the following
services from a smartphone:
.Remotely start/stop the vehicle,
if factory-equipped.
.Lock/unlock doors, if equipped with
automatic locks.
.Activate the horn and lamps.
.Check the vehicle’s fuel level, oil life,
or tire pressure, if factory-equipped with
the Tire Pressure Monitor System.
.Send destinations to the vehicle.
.Locate the vehicle on a map (U.S.
market only).
.Turn the vehicle's Wi-Fi hotspot on/off,
manage settings, and monitor data
consumption, if equipped.
.Locate a dealer and schedule service.
.Request roadside assistance.
.Set a parking reminder with pin drop,
take a photo, make a note, and set a
timer.
.Connect with Chevrolet on social media.
Features are subject to change. For
myChevrolet mobile app information and
compatibility, see my.chevrolet.com.
An active OnStar or connected service plan
may be required. A compatible device,
factory-installed remote start, and power
locks are required. Data rates apply. See
www.onstar.com for details and system
limitations.

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-15546003) - 2022 - CRC - 5/5/21
Index 437
Seats (cont'd)Underseat Storage . . . . . . . . . . . . . . . . . . . . . . 97
Securing Child Restraints . . . . . . . . . . .89, 93, 95
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 421
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Vehicle Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208 Accessories and Modifications . . . . . . . . . 307
Climate Control System . . . . . . . . . . . . . . . . 202
Doing Your Own Work . . . . . . . . . . . . . . . . . 308
Maintenance Records . . . . . . . . . . . . . . . . . . 404
Maintenance, General Information . . . . . 391
Parts Identification . . . . . . . . . . . . . . . . . . . . . 405
Scheduling Appointments . . . . . . . . . . . . . . 414
Service Electric Parking Brake Light . . . . . . . 118
Services Special Application . . . . . . . . . . . . . . . . . . . . . 398
Servicing System . . . . . . . . . . . . . . . . . . . . . . . . . 173
Servicing the Airbag . . . . . . . . . . . . . . . . . . . . . . . 71
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
Shift Lock Control Function Check, Automatic Transmission . . . . . . . . . . . . . . . . 328
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Out of Park . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Side Blind Zone Alert (SBZA) . . . . . . . . . . . . . 266 Signals, Turn and Lane-Change . . . . . . . . . . . .143
Snow Plow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303
Software Updates . . . . . . . . . . . . . . . . . . . . . . . . .154
Special Application Services . . . . . . . . . . . . . . 398
Specifications and Capacities . . . . . . . . . . . . . 406
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Start Assist, Hill . . . . . . . . . . . . . . . . . . . . . . . . . . 246
Start Vehicle, Remote . . . . . . . . . . . . . . . . . . . . . 20
Starter Switch Check . . . . . . . . . . . . . . . . . . . . . 327
Starting the Engine . . . . . . . . . . . . . . . . . . . . . . 230
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
Fluid, Power . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
Heated Wheel . . . . . . . . . . . . . . . . . . . . . . . . . 101
Wheel Adjustment . . . . . . . . . . . . . . . . . . . . . 101
Wheel Controls . . . . . . . . . . . . . . . . . . . . . . . . 101
Steering Column Lock . . . . . . . . . . . . . . . . . . . . . .32
Steering Wheel Controls . . . . . . . . . . . . . . . . . . 151
Steps
Power Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Stoplamps and Back-up Lamps Bulb Replacement . . . . . . . . . . . . . . . . . . . . . . 332
Storage Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Storage Areas Center Console . . . . . . . . . . . . . . . . . . . . . . . . . 97
Floor Console . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Underseat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Storage Compartments . . . . . . . . . . . . . . . . . . . 96
Struts
Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329
Stuck Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Surround Vision System . . . . . . . . . . . . . . . . . 254
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
System Brake Pad Life . . . . . . . . . . . . . . . . . . . . . . . . . 322
Engine Air Filter Life . . . . . . . . . . . . . . . . . . . 314
Forward Collision Alert (FCA) . . . . . . . . . . . 263
Global Positioning . . . . . . . . . . . . . . . . . . . . . . 172
Infotainment . . . . . . . . . . . . . . . . . . . . . . . . . . . 419
Noise Control . . . . . . . . . . . . . . . . . . . . . . . . . . 326
Rear Cross Traffic Alert . . . . . . . . . . . . . . . . 262
Surround Vision . . . . . . . . . . . . . . . . . . . . . . . . 254
Systems Driver Assistance . . . . . . . . . . . . . . . . . . . . . . 252
T
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
TaillampsBulb Replacement . . . . . . . . . . . . . . . . . . . . . . 332
Task Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Teen Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190