2018 CHEVROLET SILVERADO 1500 roof

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
Driving and Operating 253
{Warning
Improper use of the heater cord
or an extension cord can damage
the cord and may result in
overheating and fire.. Plug the cord into a
three-prong electrical utility
receptacle that is protected
by a ground fault detection
function. An ungrounded
outlet could cause an
electric shock.
. Use a weatherproof,
heavy-duty, 15 amp-rated
extension cord if needed.
Failure to use the
recommended extension
cord in good operating
condition, or using a
damaged heater or
extension cord, could make
(Continued)
Warning (Continued)
it overheat and cause a fire,
property damage, electric
shock, and injury.
. Do not operate the vehicle
with the heater cord
permanently attached to the
vehicle. Possible heater
cord and thermostat
damage could occur.
. While in use, do not let the
heater cord touch vehicle
parts or sharp edges. Never
close the hood on the
heater cord.
. Before starting the vehicle,
unplug the cord, reattach
the cover to the plug, and
securely fasten the cord.
Keep the cord away from
any moving parts.
4. Before starting the engine, be sure to unplug and store the
cord as it was before to keep it away from moving engine
parts. If you do not, it could be
damaged.
The length of time the heater should
remain plugged in depends on
several factors. Ask a dealer in the
area where you will be parking the
vehicle for the best advice on this.
Shifting Into Park
{Warning
It can be dangerous to get out of
the vehicle if the shift lever is not
fully in P (Park) with the parking
brake firmly set. The vehicle can
roll. If you have left the engine
running, the vehicle can move
suddenly. You or others could be
injured. To be sure the vehicle will
not move, even when you are on
fairly level ground, use the steps
that follow. With four-wheel drive,
if the transfer case is in
N (Neutral), the vehicle will be
free to roll, even if the shift lever (Continued)

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
Driving and Operating 333
go to a weigh station and weigh the
vehicle. Your dealer can also help
with this.
The total vehicle reserve capacity
for the vehicle is in the lower right
corner of the Certification/Tire label
as shown previously.
See your dealer for additional
advice and information about using
a snow plow on the vehicle. Also,
seeVehicle Load Limits 0239.
Emergency Roof Lamp
Provisions
Vehicles with the RPO VYU snow
plow prep package also have an
emergency roof lamp provision
package, RPO TRW. Wiring for the
emergency roof lamp is provided
above the overhead console. See
Auxiliary Roof-Mounted Lamp 0176
for switch location.
Pickup Conversion to
Chassis Cab
We are aware that some vehicle
owners might consider having the
pickup box removed and a
commercial or recreational body
installed. Owners should be aware
that, as manufactured, there are
differences between a chassis cab
and a pickup with the box removed
which could affect vehicle safety.
The components necessary to adapt
a pickup to permit its safe use with
a specialized body should be
installed by the body builder.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
Vehicle Care 381
FusesUsage
2 Accessory power outlet 4
7 Body control module 4
8 Body control module 8
9 Rear seat entertainment
10 Cargo lamp
15 Steering wheel controls
18 Radio
19 –
20 Sunroof
23 Airbag/Info
26 Export/Power take off/ Special equipment
option/Battery 1
27 Obstacle detection/ USB ports
28 Body control module 2
32 Special equipment option/Battery 2 Fuses
Usage
35 Air conditioning inverter
36 Amplifier
37 Battery system
39 Rear sliding window
42 Right door window motor
43 Front blower
44 Special equipment option
45 Body control module 6
46 Body control module 7
47 Passenger seat
Relays Usage
50 Retained accessory power
51 Rear sliding window open
52 Rear sliding window closeInstrument Panel Fuse
Block (Left)
The left instrument panel fuse block
access door is on the driver side
edge of the instrument panel.
Pull off the cover to access the fuse
block.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
444 Service and Maintenance
.Check tire inflation pressures.
See Tire Pressure 0392.
. Inspect tire wear. See Tire
Inspection 0399.
. Visually check for fluid leaks.
. Inspect engine air cleaner filter.
See Engine Air Cleaner/Filter
0 351.
. Inspect brake system. See
Exterior Care 0430.
. Visually inspect steering,
suspension, and chassis
components for damaged, loose,
or missing parts or signs of
wear. See Exterior Care 0430.
Lubricate the suspension and
steering components at least
every other oil change.
(If equipped with grease fittings)
. Check restraint system
components. See Safety System
Check 075. .
Visually inspect fuel system for
damage or leaks.
. Visually inspect exhaust system
and nearby heat shields for
loose or damaged parts.
. Lubricate body components. See
Exterior Care 0430.
. Check starter switch. See Starter
Switch Check 0367.
. Check automatic transmission
shift lock control function. See
Automatic Transmission Shift
Lock Control Function Check
0368.
. Check ignition transmission lock.
See Ignition Transmission Lock
Check 0368.
. Check parking brake and
automatic transmission park
mechanism. See Park Brake and
P (Park) Mechanism Check
0 368. .
Check accelerator pedal for
damage, high effort, or binding.
Replace if needed.
. Visually inspect gas strut for
signs of wear, cracks, or other
damage. Check the hold open
ability of the strut. If the hold
open is low, service the gas
strut. See Gas Strut(s) 0370.
. Inspect sunroof track and seal,
if equipped. See Sunroof055.
. Verify spare tire key lock
operation and lubricate as
needed. See Tire Changing
0 410.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
488 Index
Antilock Brake System(ABS) (cont'd)
Warning Light . . . . . . . . . . . . . . . . . 150
Appearance Care
Exterior . . . . . . . . . . . . . . . . . . . . . . . 430
Interior . . . . . . . . . . . . . . . . . . . . . . . . 436
Apple CarPlay and Android Auto . . . . . . . . . . . . . . . . . . 209
Assistance Program,
Roadside . . . . . . . . . . . . . . . . . . . . . . 465
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . 285
Assistance Systems for
Parking and Backing . . . . . . . . . . 282
Audio Bluetooth . . . . . . . . . . . . . . . . . . . . . 196
Theft-Deterrent Feature . . . . . . . 182
Automatic
Dimming Mirrors . . . . . . . . . . . . . . . . 50
Door Locks . . . . . . . . . . . . . . . . . . . . . 41
Forward Braking . . . . . . . . . . . . . . 287
Headlamp System . . . . . . . . . . . . 174
Transmission . . . . . . . . . . . . . . . . . 257
Transmission Fluid . . . . . . 347, 350
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . 260
Shift Lock Control FunctionCheck . . . . . . . . . . . . . . . . . . . . . . . 368 Auxiliary
Roof Mounted Lamp . . . . . . . . . . 176
Auxiliary Jack . . . . . . . . . . . . . . . . . . . 195
Avoiding Untrusted Media Devices . . . . . . . . . . . . . . . . . . . . . . . 190
Axle, Front . . . . . . . . . . . . . . . . . . . . . . 364
Axle, Rear . . . . . . . . . . . . . . . . . . . . . . 365
B
Battery Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . 180
Load Management . . . . . . . . . . . . 179
Power Protection . . . . . . . . . . . . . 180
Battery - North America . . . . 362, 421
Blade Replacement, Wiper . . . . . 369
Blind Spot Mirrors . . . . . . . . . . . . . . . 50
Bluetooth Overview . . . . . . . . . . . . . . . . 203, 205
Bluetooth Audio . . . . . . . . . . . . . . . . 196
Brake Pedal and AdjustableThrottle . . . . . . . . . . . . . . . . . . . . . . 247
System Warning Light . . . . . . . . 149
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 360 Antilock . . . . . . . . . . . . . . . . . . . . . . . 273
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 275
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 361 Brakes (cont'd)
Parking . . . . . . . . . . . . . . . . . . . . . . . 273
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 228 Automatic Forward . . . . . . . . . . . 287
Break-In, New Vehicle . . . . . . . . . . 247
Bulb Replacement Center High-MountedStoplamp (CHMSL) and
Cargo Lamp . . . . . . . . . . . . . . . . . 375
Fog Lamps . . . . . . . . . . . . . . . . . . . 373
Halogen Bulbs . . . . . . . . . . . . . . . . 371
Headlamp Aiming . . . . . . . . . . . . . 371
Headlamps . . . . . . . . . . . . . . . . . . . 371
Headlamps, Front Turn Signal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . . . 372
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . 371
Taillamps . . . . . . . . . . . . . . . . . . . . . 373
Taillamps, Turn Signal, Stoplamps, and Back-up
Lamps . . . . . . . . . . . . . . . . . . . . . . 373
Buying New Tires . . . . . . . . . . . . . . . 403
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 131
California Fuel Requirements . . . . . . . . . . . 293

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
492 Index
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . 371
Hazard Warning Flashers . . . . . . . 175
Head Restraints . . . . . . . . . . . . . . . . . 58
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . 371
Automatic . . . . . . . . . . . . . . . . . . . . . 174
Bulb Replacement . . . . . . . . . . . . 371
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . 174
Flash-to-Pass . . . . . . . . . . . . . . . . . 174
Headlamps, Front Turn Signal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . . . 372
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . 371
High-Beam On Light . . . . . . . . . . 154
High/Low Beam Changer . . . . . 173
Lamps On Reminder . . . . . . . . . 154
Heated Steering Wheel . . . . . . . . . . . . . . . 130
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Heated Mirrors . . . . . . . . . . . . . . . . . . . 50
Heater
Engine Coolant . . . . . . . . . . . . . . . 252
Heating . . . . . . . . . . . . . . .216, 218, 220 High Voltage Devices and
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 375
High-Beam On Light . . . . . . . . . . . . 154
High-Speed Operation . . . . . . . . . . 394
Hill and Mountain Roads . . . . . . . . 236
Hill Descent Control (HDC) . . . . . 277
Hill Descent Control Light . . . . . . . 151
Hill Start Assist (HSA) . . . . . . . . . . 275
Home Page . . . . . . . . . . . . . . . . . . . . . 184
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 337
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
How to Wear Seat Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . 70
HVAC . . . . . . . . . . . . . . . . .216, 218, 220
Hydraulic Clutch . . . . . . . . . . . . . . . . 351
I
Idle System Fast . . . . . . . . . . . . . . . . . . . . . . . . . . 251
Ignition Positions . . . . . . . . . . . . . . . 248
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . . . 368
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 46
Indicator Vehicle Ahead . . . . . . . . . . . . . . . . 152
Infants and Young Children,
Restraints . . . . . . . . . . . . . . . . . . . . . . 94
Infotainment . . . . . . . . . . . . . . . . . . . . 181 Infotainment System . . . . . . . . . . . . 474
Instrument Cluster . . . . . . . . . . . . . . 137
Instrument Panel
Storage Area . . . . . . . . . . . . . . . . . 124
Interior Rearview Mirrors . . . . . . . . . 51
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jack Auxiliary . . . . . . . . . . . . . . . . . . . . . . 195
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . . . 421
K
Keyless Entry
Remote (RKE) System . . . . . . . . . 37
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
L
Labeling, Tire Sidewall . . . . . . . . . . 386
Lamps
Auxiliary RoofMounted Lamp . . . . . . . . . . . . . . 176
Cargo . . . . . . . . . . . . . . . . . . . . . . . . . 177
Daytime Running (DRL) . . . . . . 174
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 178
Exterior Controls . . . . . . . . . . . . . . 171
Exterior Lamps Off Reminder . . . . . . . . . . . . . . . . . . . 173

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
496 Index
RoofSunroof . . . . . . . . . . . . . . . . . . . . . . . . . 55
Rotation, Tires . . . . . . . . . . . . . . . . . . 400
Routing, Engine Drive Belt . . . . . . 460
Running the Vehicle While Parked . . . . . . . . . . . . . . . . . . . . . . . . 257
S
Safety Defects ReportingCanadian Government . . . . . . . . 472
General Motors . . . . . . . . . . . . . . . 473
U.S. Government . . . . . . . . . . . . . 472
Safety Locks . . . . . . . . . . . . . . . . . . . . . 42
Safety System Check . . . . . . . . . . . . 75
Satellite Radio . . . . . . . . . . . . . . . . . . 187
Scheduling Appointments . . . . . . . 467
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . 69 Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Extender . . . . . . . . . . . . . . . . . . . . . . . . 75
How to Wear Seat BeltsProperly . . . . . . . . . . . . . . . . . . . . . . . 70
Lap Belt . . . . . . . . . . . . . . . . . . . . . . . . 75
Lap-Shoulder Belt . . . . . . . . . . . . . . 71
Reminders . . . . . . . . . . . . . . . . . . . . 143
Replacing after a Crash . . . . . . . . 76
Use During Pregnancy . . . . . . . . . . 74
Seats Adjustment, Front . . . . . . . . . . . . . . . 59 Seats (cont'd)
Center Seat . . . . . . . . . . . . . . . . . . . . 59
Head Restraints . . . . . . . . . . . . . . . . 58
Heated and Ventilated Front . . . . 65
Lumbar Adjustment, Front . . . . . . 60
Memory . . . . . . . . . . . . . . . . . . . . . . . . . 62
Power Adjustment, Front . . . . . . . 60
Rear . . . . . . . . . . . . . . . . . . . . . . . . 66, 68
Reclining Seatbacks . . . . . . . . . . . . 61
Securing Child Restraints . . . . . . . . . . . 111, 114, 115
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . 153
OnStar . . . . . . . . . . . . . . . . . . . . . . . 477
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 44
Vehicle Alarm . . . . . . . . . . . . . . . . . . . 44
Service . . . . . . . . . . . . . . . . . . . . . . . . . 225 Accessories and
Modifications . . . . . . . . . . . . . . . . 336
Climate Control System . . . . . . . . . . . . . . . . . 216, 218
Doing Your Own Work . . . . . . . . 337
Maintenance Records . . . . . . . . 455
Maintenance, General Information . . . . . . . . . . . . . . . . . . 441
Parts Identification Label . . . . . 456
Publications Ordering Information . . . . . . . . . . . . . . . . . . 470 Service (cont'd)
Scheduling Appointments . . . . . 467
Services Special Application . . . . . . . . . . . 448
Servicing the Airbag . . . . . . . . . . . . . 90
Shift Lock Control Function Check, Automatic
Transmission . . . . . . . . . . . . . . . . . . 368
Shifting
Into Park . . . . . . . . . . . . . . . . . . . . . . 253
Out of Park . . . . . . . . . . . . . . . . . . . 255
Signals, Turn and Lane-Change . . . . . . . . . . . . . . . . . 175
Snow Plow . . . . . . . . . . . . . . . . . . . . . 330
Software Updates . . . . . . . . . . . . . . 185
Special Application Services . . . . 448
Specifications and Capacities . . . . . . . . . . . . . . . . . . . . . 457
Speedometer . . . . . . . . . . . . . . . . . . . 140
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . . . 152
Start Assist, Hill . . . . . . . . . . . . . . . . . 275
Start Vehicle, Remote . . . . . . . . . . . 39
Starter Switch Check . . . . . . . . . . . 367
Starting the Engine . . . . . . . . . . . . . 249
Steering . . . . . . . . . . . . . . . . . . . . . . . . 229 Fluid, Power . . . . . . . . . . . . . . . . . . 359
Heated Wheel . . . . . . . . . . . . . . . . 130

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
Index 497
Steering (cont'd)Wheel Adjustment . . . . . . . . . . . . 129
Wheel Controls . . . . . . . . . . . . . . . 129
Steps
Power Assist . . . . . . . . . . . . . . . . . . . 43
Stoplamps and Back-up Lamps Bulb Replacement . . . . . . . . . . . . 373
Storage Areas Center Console . . . . . . . . . . . . . . . 125
Floor Console . . . . . . . . . . . . . . . . 126
Glove Box . . . . . . . . . . . . . . . . . . . . 124
Instrument Panel . . . . . . . . . . . . . 124
Sunglasses . . . . . . . . . . . . . . . . . . . 125
Storage Compartments . . . . . . . . . 124
Struts
Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . 370
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 238
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 55
Sunglass Storage . . . . . . . . . . . . . . . 125
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Switches Airbag On-Off . . . . . . . . . . . . . . . . . . . 84
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System
Forward CollisionAlert (FCA) . . . . . . . . . . . . . . . . . . 285
Infotainment . . . . . . . . . . . . . 181, 474
Noise Control . . . . . . . . . . . . . . . . . 366 Systems
Driver Assistance . . . . . . . . . . . . . 281
T
Tachometer . . . . . . . . . . . . . . . . . . . . . 140
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Taillamps . . . . . . . . . . . . . . . . . . . . . . . 373
Bulb Replacement . . . . . . . . . . . . 373
Text Telephone (TTY) Users . . . . 464
Theft-Deterrent Systems . . . . . . . . . 46 Immobilizer . . . . . . . . . . . . . . . . . . . . . 46
Throttle, Adjustable . . . . . . . . . . . . . 247
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 384
All-Season . . . . . . . . . . . . . . . . . . . . 384
All-Terrain . . . . . . . . . . . . . . . . . . . . 386
Buying New Tires . . . . . . . . . . . . . 403
Chains . . . . . . . . . . . . . . . . . . . . . . . . 408
Changing . . . . . . . . . . . . . . . . . . . . . 410
Designations . . . . . . . . . . . . . . . . . 388
Different Size . . . . . . . . . . . . . . . . . 404
Full-Size Spare . . . . . . . . . . . . . . . 420
If a Tire Goes Flat . . . . . . . . . . . . 408
Inspection . . . . . . . . . . . . . . . . . . . . 399
Low Profile . . . . . . . . . . . . . . . . . . . 385
Pressure . . . . . . . . . . . . . . . . . 392, 394
Pressure Light . . . . . . . . . . . . . . . . 153
Pressure Monitor Operation . . 395 Tires (cont'd)
Pressure Monitor System . . . . . 394
Rotation . . . . . . . . . . . . . . . . . . . . . . 400
Sidewall Labeling . . . . . . . . . . . . . 386
Terminology and Definitions . . 390
Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . . . 405
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 406
Wheel Replacement . . . . . . . . . . 407
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 402
Winter . . . . . . . . . . . . . . . . . . . . . . . . 385
Tow/Haul Mode . . . . . . . . . . . . . . . . . 262
Tow/Haul Mode Light . . . . . . . . . . . 150
Towing
Driving Characteristics . . . . . . . . 296
Equipment . . . . . . . . . . . . . . . . . . . . 318
General Information . . . . . . . . . . 296
Recreational Vehicle . . . . . . . . . . 425
Trailer . . . . . . . . . . . . . . . . . . . . . . . . 300
Trailer Sway Control (TSC) . . . 327
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 425
Traction Control System (TCS)/StabiliTrak Light . . . . . . . . . . . . . 152
Off Light . . . . . . . . . . . . . . . . . . . . . . 152