2022 CHEVROLET SILVERADO 2500 Block heater

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-15546003) - 2022 - CRC - 5/5/21
Seats and Restraints 53
Cancel Memory Seating Recalls
.During any memory recall:
Press a power seat control
Press SET memory button
.During Manual memory recall:
Release 1, 2, or
Bmemory button
.During Auto Seat Entry Memory Recall:
Turn vehicle off
Press SET, 1, 2, or
Bmemory buttons
.During Auto Seat Exit Memory Recall:
Press SET, 1, 2, or
Bmemory buttons
Obstructions
If something has blocked the seat while
recalling a memory position, the recall may
stop. Remove the obstruction and try the
recall again. If the memory position still
does not recall, see your dealer.
Heated and Ventilated Front
Seats
{Warning
If temperature change or pain to the skin
cannot be felt, the seat heater may cause
burns. To reduce the risk of burns, use
care when using the seat heater,
especially for long periods of time. Do
not place anything on the seat that
insulates against heat, such as a blanket,
cushion, cover, or similar item. This may
cause the seat heater to overheat. An
overheated seat heater may cause a burn
or may damage the seat.
Heated and Ventilated Seat Buttons Shown, Heated Seat Buttons Similar
If equipped, the buttons are on the center
stack. To operate, the engine must be
running.
Press
Ior+to heat the driver or
passenger seatback only.
Press
Jorzto heat the driver or
passenger seat cushion and seatback.
Press
Cor{to ventilate the driver or
passenger seat.
The indicator light on the button comes on
when this feature is on.

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-15546003) - 2022 - CRC - 5/5/21
Driving and Operating 231
Starting Procedure
1. For Key Access vehicles, turn the ignitionkey to Start. When the engine starts, let
go of the key. For Keyless Access
vehicles, the RKE transmitter must be in
the vehicle. Press ENGINE START/STOP
with the brake pedal applied. When the
engine begins cranking, let go of the
button.
The driver may observe a minor, and
temporary, brake pedal kickback when
starting the vehicle. This is normal.
The idle speed will go down as the
engine gets warm. Do not race the
engine immediately after starting it.
Operate the engine and transmission
gently to allow the oil to warm up and
lubricate all moving parts.
When the low fuel warning light is on
and the FUEL LEVEL LOW message is
displayed in the Driver Information
Center (DIC), hold the ignition switch in
the START position to continue engine
cranking.Caution
Cranking the engine for long periods of
time, by returning the ignition to the
START position immediately after
cranking has ended, can overheat and
damage the cranking motor, and drain
the battery. Wait at least 15 seconds
between each try, to let the cranking
motor cool down.
2. If the engine does not start after five to 10 seconds, especially in very cold
weather (below −18 °C or 0 °F), it could
be flooded with too much gasoline. Try
pushing the accelerator pedal all the way
to the floor and holding it there while
holding the key in START or ENGINE
START/STOP for up to a maximum of
15 seconds. Wait at least 15 seconds
between each try, to allow the cranking
motor to cool down. When the engine
starts, let go of the key or button and
accelerator. If the vehicle starts briefly
but then stops again, do the same thing.
This clears the extra gasoline from the
engine. Do not race the engine
immediately after starting it. Operate the engine and transmission gently until
the oil warms up and lubricates all
moving parts.
Engine Heater
If equipped, the engine heater can provide
easier starting and better fuel economy
during engine warm-up in cold weather
conditions at or below
−18 °C (0 °F). Vehicles
with an engine heater should be plugged in
at least four hours before starting. An
internal thermostat in the plug-end of the
cord may exist, which will prevent engine
heater operation at temperatures above
−18 °C (0 °F).
{Warning
Do not plug in the engine block heater
while the vehicle is parked in a garage or
under a carport. Property damage or
personal injury may result. Always park
the vehicle in a clear open area away
from buildings or structures.

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-15546003) - 2022 - CRC - 5/5/21
Index 431
DrivingAssistance Systems . . . . . . . . . . . . . . . . . . . . 263
Better Fuel Economy . . . . . . . . . . . . . . . . . . . 210
Characteristics and Towing Tips . . . . . . . . 274
Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Hill and Mountain Roads . . . . . . . . . . . . . . 218
If the Vehicle is Stuck . . . . . . . . . . . . . . . . . 219
Impaired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . 213
Off-Road . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 213
Vehicle Load Limits . . . . . . . . . . . . . . . . . . . . 220
Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
E
E85 or FlexFuel . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Electric Parking Brake . . . . . . . . . . . . . . . . . . . . 245
Electric Parking Brake Light . . . . . . . . . . . . . . . 118
Electrical Equipment, Add-On . . . . . . . . . . . . 303
Electrical System
Engine Compartment Fuse Block . . . . . . . 336
Fuses and Circuit Breakers . . . . . . . . . . . . . 336
Instrument Panel Fuse Block . . . . . . 339, 341
Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334 Electronic Stability Control (ESC) Off
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 421
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . . . . . . 315
Check Light (Malfunction Indicator) . . . . . 116
Compartment Overview . . . . . . . . . . . . . . . . 310
Coolant Temperature Gauge . . . . . . . . . . . . 113
Coolant Temperature Warning Light . . . . 121
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 316
Drive Belt Routing . . . . . . . . . . . . . . . . . . . . . 408
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . 313
Oil Pressure Gauge . . . . . . . . . . . . . . . . . . . . . 112
Oil Pressure Light . . . . . . . . . . . . . . . . . . . . . . 122
Overheated ProtectionOperating Mode . . . . . . . . . . . . . . . . . . . . . 320
Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . 318
Power Messages . . . . . . . . . . . . . . . . . . . . . . . 130
Running While Parked . . . . . . . . . . . . . . . . . 235
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
Engine Air Filter Life System . . . . . . . . . . . . . .314
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Equipment, Towing . . . . . . . . . . . . . . . . . . . . . . .281
Event Data Recorders . . . . . . . . . . . . . . . . . . . . 419 Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Extended Parking . . . . . . . . . . . . . . . . . . . . . . . . 234
Extender, Seat Belt . . . . . . . . . . . . . . . . . . . . . . . .61
Exterior Cargo Lamps . . . . . . . . . . . . . . . . . . . . 144
Exterior Lamp Controls . . . . . . . . . . . . . . . . . . . 139
Exterior Lamps Off Reminder . . . . . . . . . . . . . 141
Exterior Lighting Battery Saver . . . . . . . . . . .147
F
Fan
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
Filter,
Engine Air Cleaner . . . . . . . . . . . . . . . . . . . . . 315
Fixed Mast Antenna . . . . . . . . . . . . . . . . . . . . . .158
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Flashers, Hazard Warning . . . . . . . . . . . . . . . . .142
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364
FlexFuel E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Floor Console Storage . . . . . . . . . . . . . . . . . . . . . 98
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 389
Fluid
Automatic Transmission . . . . . . . . . . . . . . . 314
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
Power Steering . . . . . . . . . . . . . . . . . . . . . . . . 320
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321
Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .143

Chevrolet Silverado 2500 HD/3500 HD Owner Manual (GMNA-Localizing-U.
S./Canada/Mexico-15546003) - 2022 - CRC - 5/5/21
432 Index
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Forward Collision Alert (FCA) System . . . . 263
Four-WheelDrive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
Drive Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Drive System . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Frequency Statement
Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 417
Front Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Heated and Ventilated . . . . . . . . . . . . . . . . . . 53
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Economy, Driving for Better . . . . . . . . . . . 210
Filling a Portable Fuel Container . . . . . . . 273
Filling the Tank . . . . . . . . . . . . . . . . . . . . 271, 272
Foreign Countries . . . . . . . . . . . . . . . . . . . . . . 270
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Low Fuel Warning Light . . . . . . . . . . . . . . . 122
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . 269
Recommended . . . . . . . . . . . . . . . . . . . . . . . . . 269
Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
Full-Size Spare Tire . . . . . . . . . . . . . . . . . . . . . . . 374
Fuses Engine Compartment Fuse Block . . . . . . . 336 Fuses (cont'd)
Fuses and Circuit Breakers . . . . . . . . . . . . . 336
Instrument Panel Fuse Block . . . . . . 339, 341
G
Garage Door Opener . . . . . . . . . . . . . . . . . . . . . . 135
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329
Gauges
Engine Coolant Temperature . . . . . . . . . . . . 113
Engine Oil Pressure . . . . . . . . . . . . . . . . . . . . . 112
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Voltmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Warning Lights and Indicators . . . . . . . . . 107
General Information Service and Maintenance . . . . . . . . . . . . . . 391
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
Glass Replacement . . . . . . . . . . . . . . . . . . . . . . . 329
Global Positioning System (GPS) . . . . . . . . . . 172
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .412 Guidance
Problems with the Route . . . . . . . . . . . . . . . 172
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
Hazard Warning Flashers . . . . . . . . . . . . . . . . .142
HD Radio Technology . . . . . . . . . . . . . . . . . . . . 156
Head Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Head-up Display . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Headlamps
Aiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . . 330
Daytime Running Lamps (DRL) . . . . . . . . . . 141
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Headlamps, Front Turn Signal,Sidemarker, and Parking Lamps . . . . . . 331
High-Beam On Light . . . . . . . . . . . . . . . . . . . 123
High/Low Beam Changer . . . . . . . . . . . . . . . 141
Lamps On Reminder . . . . . . . . . . . . . . . . . . . 123
Heated
Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Steering Wheel . . . . . . . . . . . . . . . . . . . . . . . . 101
Heated and Ventilated Front Seats . . . . . . . .53
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202, 204