2018 CHEVROLET SILVERADO winter tires

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
Driving and Operating 237
{Warning
Coasting downhill in N (Neutral)
or with the ignition off is
dangerous. This can cause
overheating of the brakes and
loss of steering assist. Always
have the engine running and the
vehicle in gear.
. Drive at speeds that keep the
vehicle in its own lane. Do not
swing wide or cross the
center line.
. Be alert on top of hills;
something could be in your lane
(e.g., stalled car, accident).
. Pay attention to special road
signs (e.g., falling rocks area,
winding roads, long grades,
passing or no-passing zones)
and take appropriate action.
Winter Driving
Driving on Snow or Ice
Snow or ice between the tires and
the road creates less traction or
grip, so drive carefully. Wet ice can
occur at about 0 °C (32 °F) when
freezing rain begins to fall. Avoid
driving on wet ice or in freezing rain
until roads can be treated.
For Slippery Road Driving:
.Accelerate gently. Accelerating
too quickly causes the wheels to
spin and makes the surface
under the tires slick.
. Turn on Traction Control. See
Traction Control/Electronic
Stability Control 0276.
. The Antilock Brake System
(ABS) improves vehicle stability
during hard stops, but the
brakes should be applied sooner
than when on dry pavement.
See Antilock Brake System
(ABS) 0273. .
Allow greater following distance
and watch for slippery spots. Icy
patches can occur on otherwise
clear roads in shaded areas.
The surface of a curve or an
overpass can remain icy when
the surrounding roads are clear.
Avoid sudden steering
maneuvers and braking while
on ice.
. Turn off cruise control.
Blizzard Conditions
Stop the vehicle in a safe place and
signal for help. Stay with the vehicle
unless there is help nearby.
If possible, use Roadside
Assistance. See Roadside
Assistance Program 0465. To get
help and keep everyone in the
vehicle safe:
. Turn on the hazard warning
flashers.
. Tie a red cloth to an outside
mirror.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
Vehicle Care 335
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 384
All-Season Tires . . . . . . . . . . . . . . 384
Winter Tires . . . . . . . . . . . . . . . . . . 385
Low-Profile Tires . . . . . . . . . . . . . 385
All-Terrain Tires . . . . . . . . . . . . . . . 386
Tire Sidewall Labeling . . . . . . . . 386
Tire Designations . . . . . . . . . . . . . 388
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . 390
Tire Pressure . . . . . . . . . . . . . . . . . 392
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . 394
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 394
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 395
Tire Inspection . . . . . . . . . . . . . . . . 399
Tire Rotation . . . . . . . . . . . . . . . . . 400
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 402
Buying New Tires . . . . . . . . . . . . . 403
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . 404
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . 405
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 406
Wheel Replacement . . . . . . . . . . 407
Tire Chains . . . . . . . . . . . . . . . . . . . 408 If a Tire Goes Flat . . . . . . . . . . . . 408
Tire Changing . . . . . . . . . . . . . . . . 410
Full-Size Spare Tire . . . . . . . . . . 420
Jump Starting
Jump Starting - North
America . . . . . . . . . . . . . . . . . . . . . 421
Towing the Vehicle
Towing the Vehicle . . . . . . . . . . . 425
Recreational VehicleTowing . . . . . . . . . . . . . . . . . . . . . . 425
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . 430
Interior Care . . . . . . . . . . . . . . . . . . 436
Floor Mats . . . . . . . . . . . . . . . . . . . . 439
General Information
For service and parts needs, visit
your dealer. You will receive
genuine GM parts and GM-trained
and supported service people.
Genuine GM parts have one of
these marks:

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
Vehicle Care 385
performance on most road surfaces
and weather conditions. Original
equipment tires designed to GM's
specific tire performance criteria
have a TPC specification code
molded onto the sidewall. Original
equipment all-season tires can be
identified by the last two characters
of this TPC code, which will
be“MS.”
Consider installing winter tires on
the vehicle if frequent driving on
snow or ice-covered roads is
expected. All-season tires provide
adequate performance for most
winter driving conditions, but they
may not offer the same level of
traction or performance as winter
tires on snow or ice-covered roads.
See Winter Tires 0385.
Winter Tires
This vehicle was not originally
equipped with winter tires. Winter
tires are designed for increased
traction on snow and ice-covered
roads. Consider installing winter
tires on the vehicle if frequent
driving on ice or snow covered roads is expected. See your dealer
for details regarding winter tire
availability and proper tire selection.
Also, see
Buying New Tires 0403.
With winter tires, there may be
decreased dry road traction,
increased road noise, and shorter
tread life. After changing to winter
tires, be alert for changes in vehicle
handling and braking.
If using winter tires:
. Use tires of the same brand and
tread type on all four wheel
positions.
. Use only radial ply tires of the
same size, load range, and
speed rating as the original
equipment tires.
Winter tires with the same speed
rating as the original equipment tires
may not be available for H, V, W, Y,
and ZR speed rated tires. If winter
tires with a lower speed rating are
chosen, never exceed the tire's
maximum speed capability.
Low-Profile Tires
If the vehicle has P275/55R20,
P285/50R20, or P285/45R22
size tires, they are classified as
low-profile tires.
Caution
Low-profile tires are more
susceptible to damage from road
hazards or curb impact than
standard profile tires. Tire and/or
wheel assembly damage can
occur when coming into contact
with road hazards like potholes,
or sharp edged objects, or when
sliding into a curb. The warranty
does not cover this type of
damage. Keep tires set to the
correct inflation pressure and
when possible, avoid contact with
curbs, potholes, and other road
hazards.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
404 Vehicle Care
{Warning
Mixing tires of different sizes,
brands, or types may cause
loss of control of the vehicle,
resulting in a crash or other
vehicle damage. Use the
correct size, brand, and type
of tires on all wheels.
This vehicle may have a
different size spare than the
road tires originally installed
on the vehicle. When new, the
vehicle included a spare tire
and wheel assembly with a
similar overall diameter as the
road tires and wheels, so it is
all right to drive on it. The
spare tire was developed for
use on this vehicle and will not
affect vehicle handling.{Warning
Using bias-ply tires on the
vehicle may cause the wheel
rim flanges to develop cracks
after many miles of driving.
A tire and/or wheel could fail
suddenly and cause a crash.
Use only radial-ply tires with
the wheels on the vehicle.
Winter tires with the same speed
rating as the original equipment
tires may not be available for H,
V, W, Y and ZR speed rated
tires. Never exceed the winter
tires’ maximum speed capability
when using winter tires with a
lower speed rating.
If the vehicle tires must be
replaced with a tire that does not
have a TPC Spec number, make
sure they are the same size,
load range, speed rating, and
construction (radial) as the
original tires. Vehicles that have a tire
pressure monitoring system
could give an inaccurate
low-pressure warning if non-TPC
Spec rated tires are installed.
See
Tire Pressure Monitor
System 0394.
The Tire and Loading
Information label indicates the
original equipment tires on the
vehicle. See Vehicle Load Limits
0 239 for the label location and
more information about the Tire
and Loading Information label.
Different Size Tires and
Wheels
If wheels or tires are installed that
are a different size than the original
equipment wheels and tires, vehicle
performance, including its braking,
ride and handling characteristics,
stability, and resistance to rollover
may be affected. If the vehicle has
electronic systems such as antilock
brakes, rollover airbags, traction
control, electronic stability control,

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
Vehicle Care 405
or All-Wheel Drive, the performance
of these systems can also be
affected.
{Warning
If different sized wheels are used,
there may not be an acceptable
level of performance and safety if
tires not recommended for those
wheels are selected. This
increases the chance of a crash
and serious injury. Only use GM
specific wheel and tire systems
developed for the vehicle, and
have them properly installed by a
GM certified technician.
See Buying New Tires 0403 and
Accessories and Modifications
0 336.
Uniform Tire Quality
Grading
The following information relates
to the system developed by the
United States National Highway
Traffic Safety Administration (NHTSA), which grades tires by
treadwear, traction, and
temperature performance. This
applies only to vehicles sold in
the United States. The grades
are molded on the sidewalls of
most passenger car tires. The
Uniform Tire Quality Grading
(UTQG) system does not apply
to deep tread, winter tires,
compact spare tires, tires with
nominal rim diameters of
10 to 12 inches (25 to 30 cm),
or to some limited-production
tires.
While the tires available on
General Motors passenger cars
and light trucks may vary with
respect to these grades, they
must also conform to federal
safety requirements and
additional General Motors Tire
Performance Criteria (TPC)
standards.
Quality grades can be found
where applicable on the tire
sidewall between tread shoulder
and maximum section width. For
example:
Treadwear 200 Traction AA
Temperature A
All Passenger Car Tires Must
Conform to Federal Safety
Requirements In Addition To
These Grades.
Treadwear
The treadwear grade is a
comparative rating based on the
wear rate of the tire when tested
under controlled conditions on a
specified government test
course. For example, a tire
graded 150 would wear one and
one-half (1½) times as well on
the government course as a tire
graded 100. The relative
performance of tires depends
upon the actual conditions of
their use, however, and may
depart significantly from the

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
466 Customer Information
driver if they decide the claims are
made too often, or the same type of
claim is made many times.
Services Provided
.Emergency Fuel Delivery:
Delivery of enough fuel for the
vehicle to get to the nearest
service station.
. Lock-Out Service: Service to
unlock the vehicle if you are
locked out. A remote unlock may
be available if you have OnStar.
For security reasons, the driver
must present identification
before this service is given.
. Emergency Tow from a Public
Road or Highway: Tow to the
nearest Chevrolet dealer for
warranty service, or if the vehicle
was in a crash and cannot be
driven. Assistance is not given
when the vehicle is stuck in the
sand, mud, or snow.
. Flat Tire Change: Service to
change a flat tire with the spare
tire. The spare tire, if equipped,
must be in good condition and
properly inflated. It is the owner's responsibility for the repair or
replacement of the tire if it is not
covered by the warranty.
. Battery Jump Start: Service to
jump start a dead battery.
. Trip Interruption Benefits and
Assistance: If your trip is
interrupted due to a warranty
event, incidental expenses may
be reimbursed within the
Powertrain warranty period.
Items considered are reasonable
and customary hotel, meals,
rental car, or a vehicle being
delivered back to the customer,
up to 500 miles.
Services Not Included in
Roadside Assistance
. Impound towing caused by
violation of any laws
. Legal fines
. Mounting, dismounting,
or changing of snow tires,
chains, or other traction devices
Service is not provided if a vehicle
is in an area that is not accessible
to the service vehicle or is not a regularly traveled or maintained
public road, which includes ice and
winter roads. Off-road use is not
covered.
Services Specific to
Canadian-Purchased Vehicles
.
Fuel Delivery: Reimbursement
is up to 7 liters. If available,
diesel fuel delivery may be
restricted. Propane and other
fuels are not provided through
this service.
. Lock-Out Service: Vehicle
registration is required.
. Trip Interruption Benefits and
Assistance: Must be over
150 km from where your trip was
started to qualify.
Pre-authorization, original
detailed receipts, and a copy of
the repair orders are required.
Once authorization has been
received, the Roadside
Assistance advisor will help to
make arrangements and explain
how to receive payment.

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

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349200) - 2018 - CRC - 2/27/18
498 Index
Traction Control/ElectronicStability Control . . . . . . . . . . . . . . . 276
Trademarks and License Agreements . . . . . . . . . . . . . . . . . . . 210
Trailer Sway Control (TSC) . . . . . . . . . . 327
Tow Mirrors . . . . . . . . . . . . . . . . . . . . . 48
Towing . . . . . . . . . . . . . . . . . . . . . . . . 300
Transfer Case . . . . . . . . . . . . . . . . . . 265
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . 257
Fluid, Automatic . . . . . . . . . 347, 350
Fluid, Manual . . . . . . . . . . . . . . . . . 350
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . . . . . . 467
Trip Odometer . . . . . . . . . . . . . . . . . . 140
Truck-Camper Loading
Information . . . . . . . . . . . . . . . . . . . . 245
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . . . 175
Turn Signal
Bulb Replacement . . . . . . . . . . . . 373
U
Uniform Tire Quality Grading . . . 405
Universal Remote System . . . . . . 168Operation . . . . . . . . . . . . . . . . . . . . . 170
Programming . . . . . . . . . . . . . . . . . 168 Updates
Software . . . . . . . . . . . . . . . . . . . . . . 185
USB Port . . . . . . . . . . . . . . . . . . . . . . . 190
Using This Manual . . . . . . . . . . . . . . . . 2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . 44
Canadian Owners . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . 228
Identification Number (VIN) . . . 456
Load Limits . . . . . . . . . . . . . . . . . . . 239
Messages . . . . . . . . . . . . . . . . . . . . 159
Personalization . . . . . . . . . . . . . . . 160
Remote Start . . . . . . . . . . . . . . . . . . . 39
Security . . . . . . . . . . . . . . . . . . . . . . . . 44
Speed Messages . . . . . . . . . . . . . 160
Towing . . . . . . . . . . . . . . . . . . . . . . . . 425
Vehicle Ahead Indicator . . . . . . . . 152
Vehicle Care Tire Pressure . . . . . . . . . . . . . . . . . 392
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . 473
Ventilation, Air . . . . . . . . . . . . . . . . . . 223
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Voice Recognition . . . . . . . . . . . . . . 197
Voltage Devices and Wiring . . . . 375
Voltmeter Gauge . . . . . . . . . . . . . . . 143
W
Warning Brake System Light . . . . . . . . . . . 149
Caution and Danger . . . . . . . . . . . . . 3
Lane Departure (LDW) . . . . . . . 288
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . 136
Warnings Hazard Flashers . . . . . . . . . . . . . . 175
Washer Fluid . . . . . . . . . . . . . . . . . . . 359
Wheels
Alignment and Tire Balance . . 406
Different Size . . . . . . . . . . . . . . . . . 404
Replacement . . . . . . . . . . . . . . . . . 407
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 402
Where to Put the Restraint . . . . . . 98
Wi-Fi . . . . . . . . . . . . . . . . . . . . . . . . . . . 478
Windows . . . . . . . . . . . . . . . . . . . . . . . . 52 Manual . . . . . . . . . . . . . . . . . . . . . . . . . 52
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Windshield Replacement . . . . . . . . . . . . . . . . . 369
Wiper/Washer . . . . . . . . . . . . . . . . 130
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . 237
Winter Tires . . . . . . . . . . . . . . . . . . . . 385