immobilizer CHEVROLET SILVERADO 2500 2023 Owners Manual

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-15546003) - 2022 - CRC - 5/12/21
Keys, Doors, and Windows 7
Keys, Doors, and
Windows
Keys and Locks
Keys (Key Access) . . . . . . . . . . . . . . . . . . . . . . . . 7
Keys (Keyless Access) . . . . . . . . . . . . . . . . . . . . 9
Remote Keyless Entry (RKE) System . . . . 10
Remote Keyless Entry (RKE) SystemOperation (Key Access) . . . . . . . . . . . . . . . 10
Remote Keyless Entry (RKE) System Operation (Keyless Access) . . . . . . . . . . . . 13
Remote Vehicle Start . . . . . . . . . . . . . . . . . . . 20
Door Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Power Door Locks . . . . . . . . . . . . . . . . . . . . . . . 22
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . 22
Automatic Door Locks . . . . . . . . . . . . . . . . . . 22
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . 22
Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Doors
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Transporting Items That Can Catch Fire . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Power Assist Steps . . . . . . . . . . . . . . . . . . . . . . 31
Vehicle Security
Vehicle Security . . . . . . . . . . . . . . . . . . . . . . . . . 31
Vehicle Alarm System . . . . . . . . . . . . . . . . . . . 31
Steering Column Lock . . . . . . . . . . . . . . . . . . . 32 Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Immobilizer Operation . . . . . . . . . . . . . . . . . . 33
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 34
Manual Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 34
Trailer-Tow Mirrors . . . . . . . . . . . . . . . . . . . . . 34
Power Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 36
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 37
Automatic Dimming Mirror . . . . . . . . . . . . . 37
Blind Spot Mirrors . . . . . . . . . . . . . . . . . . . . . . 37
Reverse Tilt Mirrors . . . . . . . . . . . . . . . . . . . . . 38
Interior Mirrors
Interior Rearview Mirrors . . . . . . . . . . . . . . . 38
Manual Rearview Mirror . . . . . . . . . . . . . . . . 38
Automatic Dimming Rearview Mirror . . . 38
Rear Camera Mirror . . . . . . . . . . . . . . . . . . . . 38
Truck Bed Camera Rearview Mirror . . . . . 41
Windows
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Manual Windows . . . . . . . . . . . . . . . . . . . . . . . 42
Power Windows . . . . . . . . . . . . . . . . . . . . . . . . 42
Rear Windows . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Keys and Locks
Keys (Key Access)
{Warning
Leaving children in a vehicle with the
ignition key is dangerous and children or
others could be seriously injured or killed.
They could operate the power windows
or other controls or make the vehicle
move. The windows will function with
the keys in the ignition, and children or
others could be caught in the path of a
closing window. Do not leave children in
a vehicle with the ignition key.

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-15546003) - 2022 - CRC - 5/12/21
Keys, Doors, and Windows 33
pedal is pressed and the vehicle is started.
No message will display during a remote
start.
.A message that the steering wheel must
be turned and the vehicle must be started
again indicates that the column lock
mechanism is bound, the column locking
device was unable to unlock the steering
column, and the vehicle did not start.
If this happens, immediately turn the
steering wheel from side to side to
unbind the column lock. If this does not
unlock the steering column, turn the
vehicle off and open the driver door to
reset the system. Then turn the vehicle
on and immediately turn the steering
wheel side to side for about 15 seconds.
In some cases, it may take significant
force to unbind the column.
To keep the steering column from binding,
straighten the front wheels before turning
off the vehicle.
Immobilizer
See Radio Frequency Statement 0417.
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.
The system has one or more RKE
transmitters matched to an immobilizer
control unit in your vehicle. Only a correctly
matched RKE transmitter will start the
vehicle. If the transmitter is ever damaged,
you may not be able to start your vehicle. When trying to start the vehicle, the
security light may come 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
the transmitter in the transmitter pocket
located in the center console. See
Remote
Keyless Entry (RKE) System Operation (Key
Access) 010 or
Remote Keyless Entry (RKE) System
Operation (Keyless Access) 013.
If the ignition mode will not change with
the other transmitter or with the
transmitter in the transmitter pocket, your
vehicle needs service. If the ignition does
change modes, the first transmitter may be
faulty. See your dealer who can service the
theft-deterrent system and have a new RKE
transmitter programmed to the vehicle.
It is possible for the immobilizer system to
learn new or replacement RKE transmitters.
Up to eight transmitters can be
programmed for the vehicle. To program
additional transmitters, see "Programming

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-15546003) - 2022 - CRC - 5/12/21
34 Keys, Doors, and Windows
Transmitters to the Vehicle" underRemote
Keyless Entry (RKE) System Operation (Key
Access) 010 or
Remote Keyless Entry (RKE) System
Operation (Keyless Access) 013
Do not leave the transmitter or device that
disarms or deactivates the vehicle theft
system in the vehicle.
When equipped with a key, if the engine
still does not start, and the key appears to
be undamaged, try another ignition key.
It may be necessary to check the fuse. See
Fuses and Circuit Breakers 0336. If the
engine still does not start with the other
key, the vehicle needs service. If the vehicle
does start, the first key may be faulty. See
your dealer. It is possible for the
immobilizer system to learn new or
replacement keys. Up to eight keys can be
programmed for the vehicle. To program
additional keys, see Keys (Key Access)07or
Keys (Keyless Access) 09. Do not leave the
key or device that disarms or deactivates
the vehicle theft system in the vehicle.
See your dealer to get a new key blank cut
exactly as the ignition key that operates the
system.Exterior Mirrors
Convex Mirrors
{Warning
A convex mirror can make things, like
other vehicles, look farther away than
they really are. If you cut too sharply
into the right lane, you could hit a
vehicle on the right. Check the inside
mirror or glance over your shoulder
before changing lanes.
Standard Mirrors
The passenger side mirror is convex shaped.
A convex mirror's surface is curved so more
can be seen from the driver seat.
Trailer-Tow Mirrors
The upper portion of both the driver and
passenger mirrors is flat.
The lower portion of both the driver and
passenger mirrors is convex. A convex
mirror’s surface is curved so more can be
seen from the driver seat. The lower portion
is adjusted manually.
Manual Mirrors
If equipped, adjust manual mirrors by
moving the mirror up and down or left to
right to see a little of the side of the vehicle
and to have a clear view behind the vehicle.
Using hood-mounted air deflectors and
add-on convex mirror attachments could
decrease mirror performance.
Trailer-Tow Mirrors
Extending Mirrors
Trailer tow mirrors can extend out for better
visibility when towing a trailer.

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-15546003) - 2022 - CRC - 5/12/21
Instruments and Controls 123
The security light should come on briefly as
the engine is started. If it does not come on,
have the vehicle serviced by your dealer.
If the system is working normally, the
indicator light turns off.
If the light stays on and the engine does
not start, there could be a problem with the
theft-deterrent system. SeeImmobilizer
Operation 033.
High-Beam On Light
This light comes on when the high-beam
headlamps are in use. See Headlamp High/
Low-Beam Changer 0141.
IntelliBeam Light
This light comes on when the IntelliBeam
system, if equipped, is enabled. See Exterior
Lamp Controls 0139.
Front Fog Lamp Light
For vehicles with fog lamps, this light comes
on when the fog lamps are turned on.
The light goes out when the fog lamps are
turned off. See Fog Lamps0143.
Lamps On Reminder
This light comes on when the exterior lamps
are in use, except when only the Daytime
Running Lamps (DRL) are active. See Exterior
Lamp Controls 0139.
Cruise Control Light
For vehicles with cruise control, the cruise
control light is white when the cruise
control is on and ready, and turns green
when the cruise control is set and active.
The light turns off when the cruise control is
turned off. See Cruise Control0250.
Door Ajar Light
This light comes on when a door is open or
not securely latched. Before driving, check
that all doors are properly closed.

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-15546003) - 2022 - CRC - 5/5/21
Index 433
High-Beam On Light . . . . . . . . . . . . . . . . . . . . . . 123
Hill and Mountain Roads . . . . . . . . . . . . . . . . .218
Hill Descent Control (HDC) . . . . . . . . . . . . . . . 248
Hill Descent Control Light . . . . . . . . . . . . . . . . . 119
Hill Start Assist (HSA) . . . . . . . . . . . . . . . . . . . . 246
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
How to Wear Seat Belts Properly . . . . . . . . . 56
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202, 204
I
If the System Needs Service . . . . . . . . . . . . . . 173
Ignition Positions . . . . . . . . . . . . . . . . . . . .227, 229
Ignition Transmission Lock Check . . . . . . . . 328
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
IndicatorVehicle Ahead . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Infants and Young Children, Restraints . . . . 74
Information Publication Ordering . . . . . . . . . . . . . . . . . . . 416
Infotainment System . . . . . . . . . . . . . . . . . . . . 419
Instrument Cluster . . . . . . . . . . . . . . . . . . . . . . . 107
Instrument Panel Overview . . . . . . . . . . . . . . . . 4
Interior Rearview Mirrors . . . . . . . . . . . . . . . . . 38
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 1, 148
J
Jack
Auxiliary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Jump Starting - North America . . . . . . . . . . . 374
K
Keyless Entry Remote (RKE) System . . . . . . . . . . . . . . . . 10, 13
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7, 9
L
Labeling, Tire Sidewall . . . . . . . . . . . . . . . . . . . 345
Lamps Auxiliary Roof Mounted Lamp . . . . . . . . . 144
Daytime Running (DRL) . . . . . . . . . . . . . . . . . 141
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Exterior Cargo . . . . . . . . . . . . . . . . . . . . . . . . . 144
Exterior Controls . . . . . . . . . . . . . . . . . . . . . . . 139
Exterior Lamps Off Reminder . . . . . . . . . . . 141
Exterior Lighting Battery Saver . . . . . . . . 147
License Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
Malfunction Indicator (CheckEngine) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
On Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Lane Change Alert (LCA) . . . . . . . . . . . . . . . . . 266
Lane Departure Warning (LDW) . . . . . . . . . . 268
Lane Departure Warning Light . . . . . . . . . . . . 119
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . . . . . . 58 LATCH System
Replacing Parts after a Crash . . . . . . . . . . . 89
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Illumination Control . . . . . . . . . . . . . . . . . . . 145
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
Task . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Lights Airbag Readiness . . . . . . . . . . . . . . . . . . . . . . . 114
Antilock Brake System (ABS)Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Brake System Warning . . . . . . . . . . . . . . . . . 117
Charging System . . . . . . . . . . . . . . . . . . . . . . . 116
Check Engine (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . 123
Door Ajar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Driver Mode Control . . . . . . . . . . . . . . . . . . . . 121
Electric Parking Brake . . . . . . . . . . . . . . . . . . . 118
Electronic Stability Control (ESC), Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Engine Coolant Temperature Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Engine Oil Pressure . . . . . . . . . . . . . . . . . . . . 122

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-15546003) - 2022 - CRC - 5/5/21
438 Index
Text Telephone (TTY) Users . . . . . . . . . . . . . . . 411
Theft-Deterrent Systems . . . . . . . . . . . . . . . . . . .33Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344 All-Season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344
All-Terrain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345
Buying New Tires . . . . . . . . . . . . . . . . . . . . . . 359
Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 362
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364
Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . 346
Different Size . . . . . . . . . . . . . . . . . . . . . . . . . . 360
Full-Size Spare . . . . . . . . . . . . . . . . . . . . . . . . . 374
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . 363
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 355
Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349
Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Pressure Monitor Operation . . . . . . . . . . . 351
Pressure Monitor System . . . . . . . . . . . . . . 350
Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356
Sidewall Labeling . . . . . . . . . . . . . . . . . . . . . . 345
Terminology and Definitions . . . . . . . . . . . 347
Uniform Tire Quality Grading . . . . . . . . . . 360
Wheel Alignment and Tire Balance . . . . 361
Wheel Replacement . . . . . . . . . . . . . . . . . . . . 361
When It Is Time for New Tires . . . . . . . . . 358
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269 Tow/Haul Mode . . . . . . . . . . . . . . . . . . . . . . . . . 240
Towing
Driving Characteristics . . . . . . . . . . . . . . . . . 274
Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281
General Information . . . . . . . . . . . . . . . . . . . 273
Recreational Vehicle . . . . . . . . . . . . . . . . . . . 378
Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Trailer Sway Control (TSC) . . . . . . . . . . . . . 291
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377
Traction Off Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
Trademarks and License Agreements . . . . . 193
Trailer Sway Control (TSC) . . . . . . . . . . . . . . . . . . . . 291
Tow Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Trailer Towing App . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
Trailering App . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
Transfer Case
Four-Wheel Drive . . . . . . . . . . . . . . . . . . . . . . 240
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Fluid, Automatic . . . . . . . . . . . . . . . . . . . . . . . 314
Transportation Program, Courtesy . . . . . . . 414 Transporting Items That Can
Catch Fire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Truck Bed Camera Rearview Mirror . . . . . . . .41
Truck-Camper Loading Information . . . . . . . 225
Turn and Lane-Change Signals . . . . . . . . . . . .143
Turn Signal Bulb Replacement . . . . . . . . . . . . . . . . . . . . . . 332
U
Underseat Storage . . . . . . . . . . . . . . . . . . . . . . . . 97
Uniform Tire Quality Grading . . . . . . . . . . . . 360
Universal Remote System . . . . . . . . . . . . . . . . . 135Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Updates Map Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
USB Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .158
Using the Navigation System . . . . . . . . . . . . 162
Using the System . . . . . . . . . . . . . . . . . . . . . . . . . 152
Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . . .2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Canadian Owners . . . . . . . . . . . . . . . . . . . . . . . . . 1
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Identification Number (VIN) . . . . . . . . . . . . 405