change time CHEVROLET SILVERADO 2020 Workshop Manual

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13337620) - 2020 - CTC - 1/27/20
OnStar 477
Vehicle Software Updates
OnStar or GM may remotely deliver
software updates or changes to the
vehicle without further notice or
consent. These updates or changes
may enhance or maintain safety,
security, or the operation of the
vehicle or the vehicle systems.
Software updates or changes may
affect or erase data or settings that
are stored in the vehicle, such as
saved navigation destinations or
pre-set radio stations. Neither
OnStar nor GM is responsible for
any affected or erased data or
settings. These updates or changes
may also collect personal
information. Such collection is
described in the OnStar privacy
statement or separately disclosed at
the time of installation. These
updates or changes may also cause
a system to automatically
communicate with GM servers to
collect information about vehicle
system status, identify whether
updates or changes are available,or deliver updates or changes. An
active OnStar agreement constitutes
consent to these software updates
or changes and agreement that
either OnStar or GM may remotely
deliver them to the vehicle.
Privacy
The complete OnStar Privacy
Statement may be found at
www.onstar.com (U.S.),
or www.onstar.ca (Canada). We
recommend that you review it. If you
have any questions, call
1-888-4ONSTAR (1-888-466-7827)
or press
Qto speak with an
Advisor. Users of wireless
communications are cautioned that
the privacy of any information sent
via wireless cellular communications
cannot be assured. Third parties
may unlawfully intercept or access
transmissions and private
communications without consent.
OnStar - Software
Acknowledgements
To obtain the source code under
GPL, LGPL, MPL, and other open
source licenses, that is contained
in this product, please visit
http://opensource.lge.com. In
addition to the source code, all
referred license terms, warranty
disclaimers, and copyright notices
are available for download. This
offer is valid for a period of three
years after our last shipment of this
product. This offer is valid to anyone
in receipt of this information.
*Provided through LG Electronics
Inc., who is solely responsible for
provisions of related OSS
compliance.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13337620) - 2020 - CTC - 1/27/20
480 Connected Services
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.
Remote Services
Contact an OnStar Advisor to
unlock the doors or sound the horn
and flash the lamps.
Marketplace
OnStar Advisors can provide offers
from restaurants and retailers on
your route, help locate hotels,
or book a room. These services
vary by market.
Diagnostics
By monitoring and reporting on the
vehicle's key systems, OnStar
Advanced Diagnostics, if equipped,
provides a way to keep up on
maintenance. Capabilities vary by
model. See www.onstar.com for
details and system limitations.
Features are subject to change. For
updates on feature capabilities, see
my.chevrolet.com. Message and
data rates may apply.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13337620) - 2020 - CTC - 1/27/20
486 Index
Gauges (cont'd)Odometer . . . . . . . . . . . . . . . . . . . . . 128
Speedometer . . . . . . . . . . . . . . . . . 128
Tachometer . . . . . . . . . . . . . . . . . . . 129
Trip Odometer . . . . . . . . . . . . . . . . 129
Voltmeter . . . . . . . . . . . . . . . . . . . . . 132
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . 123
General Information Service and Maintenance . . . . . 435
Towing . . . . . . . . . . . . . . . . . . . . . . . . 283
Vehicle Care . . . . . . . . . . . . . . . . . . 324
Glass Replacement . . . . . . . . . . . . . 361
Glove Box . . . . . . . . . . . . . . . . . . . . . . 110
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . 462
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . 362
Hazard Warning Flashers . . . . . . . 166
Head Restraints . . . . . . . . . . . . . . . . . 51
Head-up Display . . . . . . . . . . . . . . . . 149
Headlamps
Aiming . . . . . . . . . . . . . . . . . . . . . . . . 362
Automatic . . . . . . . . . . . . . . . . . . . . . 165
Bulb Replacement . . . . . . . . . . . . 362
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . 165 Headlamps (cont'd)
Flash-to-Pass . . . . . . . . . . . . . . . . . 165
Headlamps, Front Turn
Signal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . . . 363
High-Beam On Light . . . . . . . . . . 143
High/Low Beam Changer . . . . . 164
Lamps On Reminder . . . . . . . . . 144
Heated Rear Seats . . . . . . . . . . . . . . . . . . . . . 61
Steering Wheel . . . . . . . . . . . . . . . .117
Heated and Ventilated Front
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Heated Mirrors . . . . . . . . . . . . . . . . . . . 41
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . .211
Heating . . . . . . . . . . . . . . . . . . . . 174, 176
High-Beam On Light . . . . . . . . . . . . 143
High-Speed Operation . . . . . . . . . . 385
Hill and Mountain Roads . . . . . . . . 194
Hill Descent Control (HDC) . . . . . 233
Hill Descent Control Light . . . . . . . 139
Hill Start Assist (HSA) . . . . . . . . . . 231
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
How to Wear Seat Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . 63
HVAC . . . . . . . . . . . . . . . . . . . . . . 174, 176
I
Ignition Positions . . . . . . . . . . 205, 207
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . . . 359
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 35
Indicator
Pedestrian Ahead . . . . . . . . . . . . 140
Vehicle Ahead . . . . . . . . . . . . . . . . 140
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . 84
Information Publication Ordering . . . . . . . . . . 467
Infotainment . . . . . . . . . . . . . . . . . . . . 173
Infotainment System . . . . . . . . . . . . 471
Instrument Cluster . . . . . . . . . . . . . . 124
Instrument Panel Overview . . . . . . . 5
Interior Rearview Mirrors . . . . . . . . . 42
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . . . 415
K
Keyless EntryRemote (RKE) System . . . . . 13, 16
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . .9, 12

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13337620) - 2020 - CTC - 1/27/20
Index 487
L
Labeling, Tire Sidewall . . . . . . . . . . 377
LampsAuxiliary RoofMounted Lamp . . . . . . . . . . . . . . 168
Daytime Running (DRL) . . . . . . 165
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 170
Exterior Cargo . . . . . . . . . . . . . . . . 169
Exterior Controls . . . . . . . . . . . . . . 162
Exterior Lamps Off Reminder . . . . . . . . . . . . . . . . . . . 164
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . 172
License Plate . . . . . . . . . . . . . . . . . 366
Malfunction Indicator
(Check Engine) . . . . . . . . . . . . . 135
On Reminder . . . . . . . . . . . . . . . . . 144
Reading . . . . . . . . . . . . . . . . . . . . . . 170
Lane Change Alert (LCA) . . . . . . . 270
Lane Departure
Warning (LDW) . . . . . . . . . . . . . . . . 272
Lane Departure Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Lane Keep Assist (LKA) . . . . . . . . 274
Lane Keep Assist Light . . . . . . . . . 139
Lap-Shoulder Belt . . . . . . . . . . . . . . . 65 LATCH System
Replacing Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . 102
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . 89
LED Lighting . . . . . . . . . . . . . . . . . . . . 363
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . 171
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Illumination Control . . . . . . . . . . . 170
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 363
Task . . . . . . . . . . . . . . . . . . . . . . . . . . 168
Lights Airbag Readiness . . . . . . . . . . . . . 133
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . . 138
Brake System Warning . . . . . . . 137
Charging System . . . . . . . . . . . . . 134
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . 135
Cruise Control . . . . . . . . . . . . . . . . 144
Door Ajar . . . . . . . . . . . . . . . . . . . . . 144
Driver Mode Control . . . . . . . . . . 142
Electric Parking Brake . . . . . . . . 137
Electronic Stability Control
(ESC), Off . . . . . . . . . . . . . . . . . . . 141
Engine Coolant Temperature Warning . . . . . . . 141 Lights (cont'd)
Engine Oil Pressure . . . . . . . . . . 143
Flash-to-Pass . . . . . . . . . . . . . . . . . 165
Four-Wheel-Drive . . . . . . . . . . . . . 138
Front Fog Lamp . . . . . . . . . . . . . . 144
High-Beam On . . . . . . . . . . . . . . . . 143
High/Low Beam Changer . . . . . 164
Hill Descent Control . . . . . . . . . . 139
Lane Departure Warning . . . . . . 139
Lane Keep Assist . . . . . . . . . . . . . 139
Low Fuel Warning . . . . . . . . . . . . 143
Seat Belt Reminders . . . . . . . . . . 132
Security . . . . . . . . . . . . . . . . . . . . . . 143
Service Electric Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . 138
Tire Pressure . . . . . . . . . . . . . . . . . 142
Tow/Haul Mode . . . . . . . . . . . . . . . 139
Traction Off . . . . . . . . . . . . . . . . . . . 140
Limited-Slip Differential . . . . . . . . . 239
Lock Steering Column . . . . . . . . . . . . . . . . 35
Locking Rear Axle . . . . . . . . . . . . . . 239
Locks Automatic Door . . . . . . . . . . . . . . . . . 27
Delayed Locking . . . . . . . . . . . . . . . . 27
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Lockout Protection . . . . . . . . . . . . . . 27
Power Door . . . . . . . . . . . . . . . . . . . . . 27

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13337620) - 2020 - CTC - 1/27/20
Index 491
ShiftingInto Park . . . . . . . . . . . . . . . . . . . . . . 213
Out of Park . . . . . . . . . . . . . . . . . . . 215
Side Blind Zone Alert (SBZA) . . . 270
Signals, Turn and Lane-Change . . . . . . . . . . . . . . . . . 167
Snow Plow . . . . . . . . . . . . . . . . . . . . . 319
Special Application Services . . . . 445
Specifications and
Capacities . . . . . . . . . . . . . . . . . . . . . 454
Speedometer . . . . . . . . . . . . . . . . . . . 128
Start Assist, Hill . . . . . . . . . . . . . . . . . 231
Start Vehicle, Remote . . . . . . . . . . . 24
Starter Switch Check . . . . . . . . . . . 358
Starting the Engine . . . . . . . . . . . . . 209
Steering . . . . . . . . . . . . . . . . . . . . . . . . 185
Fluid, Power . . . . . . . . . . . . . . . . . . 350
Heated Wheel . . . . . . . . . . . . . . . . .117
Wheel Adjustment . . . . . . . . . . . . .116
Wheel Controls . . . . . . . . . . . . . . . .117
Steering Column Lock . . . . . . . . . . . 35
Steps
Power Assist . . . . . . . . . . . . . . . . . . . 32
Stop/Start System . . . . . . . . . . . . . . 210
Stoplamps and Back-up Lamps Bulb Replacement . . . . . . . . . . . . 364
Storage Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . 111 Storage Areas
Center Console . . . . . . . . . . . . . . . . 111
Floor Console . . . . . . . . . . . . . . . . .112
Glove Box . . . . . . . . . . . . . . . . . . . . .110
Underseat . . . . . . . . . . . . . . . . . . . . . 111
Storage Compartments . . . . . . . . . 110
Struts Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . 361
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 196
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 48
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Brake Pad Life . . . . . . . . . . . . . . . . 352
Engine Air Filter Life . . . . . . . . . . 339
Forward CollisionAlert (FCA) . . . . . . . . . . . . . . . . . . 264
Infotainment . . . . . . . . . . . . . 173, 471
Noise Control . . . . . . . . . . . . . . . . . 357
Systems Driver Assistance . . . . . . . . . . . . . 252
T
Tachometer . . . . . . . . . . . . . . . . . . . . . 129
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Taillamps
Bulb Replacement . . . . . . . . . . . . 364
Task Lighting . . . . . . . . . . . . . . . . . . . 168 Text Telephone (TTY) Users . . . . 461
Theft-Deterrent Systems . . . . . . . . . 35
Immobilizer . . . . . . . . . . . . . . . . . . . . . 35
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 375 All-Season . . . . . . . . . . . . . . . . . . . . 375
All-Terrain . . . . . . . . . . . . . . . . . . . . 377
Buying New Tires . . . . . . . . . . . . . 395
Chains . . . . . . . . . . . . . . . . . . . . . . . . 400
Changing . . . . . . . . . . . . . . . . . . . . . 402
Designations . . . . . . . . . . . . . . . . . 379
Different Size . . . . . . . . . . . . . . . . . 397
Full-Size Spare . . . . . . . . . . . . . . . 414
If a Tire Goes Flat . . . . . . . . . . . . 401
Inspection . . . . . . . . . . . . . . . . . . . . 392
Low Profile . . . . . . . . . . . . . . . . . . . 376
Pressure . . . . . . . . . . . . . . . . . 383, 385
Pressure Light . . . . . . . . . . . . . . . . 142
Pressure Monitor Operation . . 386
Pressure Monitor System . . . . . 385
Rotation . . . . . . . . . . . . . . . . . . . . . . 392
Sidewall Labeling . . . . . . . . . . . . . 377
Terminology and Definitions . . 381
Uniform Tire QualityGrading . . . . . . . . . . . . . . . . . . . . . 397
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 399
Wheel Replacement . . . . . . . . . . 399

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13337620) - 2020 - CTC - 1/27/20
492 Index
Tires (cont'd)When It Is Time for New
Tires . . . . . . . . . . . . . . . . . . . . . . . . 394
Winter . . . . . . . . . . . . . . . . . . . . . . . . 376
Top Tier Fuel . . . . . . . . . . . . . . . . . . . 276
Tow/Haul Mode . . . . . . . . . . . . . . . . . 223
Tow/Haul Mode Light . . . . . . . . . . . 139
Towing Driving Characteristics . . . . . . . . 283
Equipment . . . . . . . . . . . . . . . . . . . . 292
General Information . . . . . . . . . . 283
Recreational Vehicle . . . . . . . . . . 420
Trailer . . . . . . . . . . . . . . . . . . . . . . . . 288
Trailer Sway Control (TSC) . . . 304
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 419
Traction
Limited-Slip Differential . . . . . . . 239
Off Light . . . . . . . . . . . . . . . . . . . . . . 140
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . 231
Trailer
Sway Control (TSC) . . . . . . . . . . 304
Tow Mirrors . . . . . . . . . . . . . . . . . . . . . 38
Towing . . . . . . . . . . . . . . . . . . . . . . . . 288
Trailer Towing App . . . . . . . . . . . . . . . . . . . . . . . . . . . 306
Trailering App . . . . . . . . . . . . . . . . . . 306
Transfer Case . . . . . . . . . . . . . . . . . . 223 Transmission
Automatic . . . . . . . . . . . . . . . . . . . . . 217
Fluid, Automatic . . . . . . . . . . . . . . 339
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . . . . . . 464
Trip Odometer . . . . . . . . . . . . . . . . . . 129
Truck-Camper Loading Information . . . . . . . . . . . . . . . . . . . . 202
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . . . 167
Turn Signal
Bulb Replacement . . . . . . . . . . . . 364
U
Underseat Storage . . . . . . . . . . . . . 111
Uniform Tire Quality Grading . . . 397
Universal Remote System . . . . . . 158Operation . . . . . . . . . . . . . . . . . . . . . 160
Programming . . . . . . . . . . . . . . . . . 158
Using This Manual . . . . . . . . . . . . . . . . 2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . 34
Canadian Owners . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . 185
Identification Number (VIN) . . . 453
Load Limits . . . . . . . . . . . . . . . . . . . 197
Messages . . . . . . . . . . . . . . . . . . . . 152 Vehicle (cont'd)
Personalization . . . . . . . . . . . . . . . 153
Remote Start . . . . . . . . . . . . . . . . . . . 24
Security . . . . . . . . . . . . . . . . . . . . . . . . 34
Speed Messages . . . . . . . . . . . . . 153
Towing . . . . . . . . . . . . . . . . . . . . . . . . 419
Vehicle Ahead Indicator . . . . . . . . 140
Vehicle Care
Tire Pressure . . . . . . . . . . . . . . . . . 383
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . 470
Vehicle Security
Steering Column Lock . . . . . . . . . . 35
Ventilation, Air . . . . . . . . . . . . . . . . . . 179
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Voltmeter Gauge . . . . . . . . . . . . . . . 132
W
Warning Brake System Light . . . . . . . . . . . 137
Caution and Danger . . . . . . . . . . . . . 3
Lane Departure (LDW) . . . . . . . 272
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . 123
Warnings Hazard Flashers . . . . . . . . . . . . . . 166
Washer Fluid . . . . . . . . . . . . . . . . . . . 350