2017 CHEVROLET SILVERADO wheel size

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
34 Keys, Doors, and Windows
{Warning
If the key is unintentionally
rotated while the vehicle is
running, the ignition could be
moved out of the RUN position.
This could be caused by heavy
items hanging from the key ring,
or by large or long items attached
to the key ring that could be
contacted by the driver or
steering wheel. If the ignition
moves out of the RUN position,
the engine will shut off, braking
and steering power assist may be
(Continued)
Warning (Continued)
impacted, and airbags may not
deploy. To reduce the risk of
unintentional rotation of the
ignition key, do not change the
way the ignition key and Remote
Keyless Entry (RKE) transmitter,
if equipped, are connected to the
provided key rings.
The ignition key and key rings, andRKE transmitter, if equipped, aredesigned to work together as asystem to reduce the risk ofunintentionally moving the key outof the RUN position. The ignitionkey has a small hole to allowattachment of the provided key ring.It is important that any replacementignition keys have a small hole. Seeyour dealer if a replacement key isrequired.
The combination and size of therings that came with your keys werespecifically selected for yourvehicle. The rings are connected tothe key like two links of a chain toreduce the risk of unintentionallymoving the key out of the RUNposition. Do not add any additionalitems to the ring attached to theignition key. Attach additional itemsonly to the second ring, and limitadded items to a few essential keysor small, light items no larger thanan RKE transmitter.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Seats and Restraints 87
{Warning
For up to 10 seconds after the
vehicle is turned off and the
battery is disconnected, an airbag
can still inflate during improper
service. You can be injured if you
are close to an airbag when it
inflates. Avoid yellow connectors.
They are probably part of the
airbag system. Be sure to follow
proper service procedures, and
make sure the person performing
work for you is qualified to do so.
Adding Equipment to the
Airbag-Equipped Vehicle
Adding accessories that change thevehicle's frame, bumper system,height, front end, or side sheetmetal, may keep the airbag systemfrom working properly. Theoperation of the airbag system canalso be affected by changing anyparts of the front seats, safety belts,the airbag sensing and diagnosticmodule, steering wheel, instrumentpanel, any of the airbag modules,
ceiling headliner or pillar garnishtrim, overhead console, frontsensors, side impact sensors,or airbag wiring.
Yo u r d e a l e r a n d t h e s e r v i c e m a n u a lhave information about the locationof the airbag sensors, sensing anddiagnostic module, and airbagwiring.
In addition, the vehicle may have apassenger sensing system for thefront outboard passenger position,which includes sensors that are partof the passenger seat. Thepassenger sensing system may notoperate properly if the original seattrim is replaced with non-GMcovers, upholstery, or trim; or withGM covers, upholstery, or trimdesigned for a different vehicle. Anyobject, such as an aftermarket seatheater or a comfort-enhancing pador device, installed under or on topof the seat fabric, could alsointerfere with the operation of thepassenger sensing system. Thiscould either prevent properdeployment of the passengerairbag(s) or prevent the passengersensing system from properly
turning off the passenger airbag(s).SeePassenger SensingSystem082.
If the vehicle has rollover roof-railairbags, seeDifferent Size Tiresand Wheels0416for additionalimportant information.
If a snow plow is added to thevehicle, the airbags should still workproperly. The airbag systems weredesigned to work properly under awide range of conditions, includingsnow plowing with vehicles thathave the optional snow plow preppackage (RPO VYU). Do notchange or defeat the snow plow's“tripping mechanism.”If you do, itcan damage the snow plow and thevehicle, and may cause an airbagdeployment.
If you have to modify your vehiclebecause you have a disability andyou have questions about whetherthe modifications will affect thevehicle's airbag system, or if youhave questions about whether theairbag system will be affected if thevehicle is modified for any other

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Instruments and Controls 155
STABILITRAK INITIALIZING
This message may come on if theStabiliTrak system has not fullyinitialized because of roadconditions or the incorrect tire size.When the StabiliTrak system is fullyinitialized, the message will turn off.SeeTr a c t i o n C o n t r o l / E l e c t r o n i cStability Control0295.Ifthismessage continues to be displayedfor multiple ignition cycles and ondifferent road surfaces, see yourdealer for service.
TRACTION CONTROL OFF
This message displays when thetraction control has been turned off.SeeTr a c t i o n C o n t r o l / E l e c t r o n i cStability Control0295.
TRACTION CONTROL ON
This message displays when thetraction control is active. SeeTr a c t i o n C o n t r o l / E l e c t r o n i c S t a b i l i t yControl0295.
STABILITRAK OFF
This message displays when theStabiliTrak system has been turnedoff. Adjust your driving accordingly.
To l i m i t w h e e l s p i n a n d r e a l i z e t h efull benefits of the stabilityenhancement system, you shouldnormally leave StabiliTrak on. SeeTr a c t i o n C o n t r o l / E l e c t r o n i c S t a b i l i t yControl0295.
STABILITRAK OFF may alsodisplay when the stability controlhas been automatically disabled.The following conditions can causethis message to appear:
.The system is overheating,which could occur if StabiliTrakactivates continuously for anextended period of time.
.The brake system warning lightis on. SeeBrake SystemWarning Light0140.
.The stability system takes longerthan usual to complete itsdiagnostic checks due to drivingconditions.
.An engine or vehicle-relatedproblem has been detected andthe vehicle needs service. Seeyour dealer.
.The transfer case is inFour-Wheel Drive Low.
The message turns off as soon asthe conditions that caused themessage to be displayed are nolonger present.
Airbag System Messages
SERVICE AIRBAG
This message displays if there is aproblem with the airbag system.Ta k e t h e v e h i c l e t o y o u r d e a l e r f o rservice.
Safety Belt Messages
SHIFTER LOCKED. BUCKLE
SEATBELT
This message displays if the vehicleis equipped with the Safety BeltAssurance System and the driverand front outboard passenger,if present, safety belts are notbuckled. The vehicle will not shiftout of P (Park). Buckle the safetybelt(s) to unlock the shift lever.
This system may not allow thevehicle to shift out of P (Park) if anobject—such as a briefcase,handbag, grocery bag, laptop,

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Vehicle Care 351
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 397All-Season Tires . . . . . . . . . . . . . . 398Winter Tires . . . . . . . . . . . . . . . . . . 398Low-Profile Tires . . . . . . . . . . . . . 399All-Terrain Tires . . . . . . . . . . . . . . . 399Tire Sidewall Labeling . . . . . . . . 399Tire Designations . . . . . . . . . . . . . 402Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . 403Tire Pressure . . . . . . . . . . . . . . . . . 405Tire Pressure for High-SpeedOperation . . . . . . . . . . . . . . . . . . . 407Tire Pressure MonitorSystem . . . . . . . . . . . . . . . . . . . . . . 407Tire Pressure MonitorOperation . . . . . . . . . . . . . . . . . . . 408Tire Inspection . . . . . . . . . . . . . . . . 411Tire Rotation . . . . . . . . . . . . . . . . . 412When It Is Time for NewTires . . . . . . . . . . . . . . . . . . . . . . . . 414Buying New Tires . . . . . . . . . . . . . 415Different Size Tires andWheels . . . . . . . . . . . . . . . . . . . . . . 416Uniform Tire QualityGrading . . . . . . . . . . . . . . . . . . . . . 417Wheel Alignment and TireBalance . . . . . . . . . . . . . . . . . . . . . 418Wheel Replacement . . . . . . . . . . 418Tire Chains . . . . . . . . . . . . . . . . . . . 419If a Tire Goes Flat . . . . . . . . . . . . 420
Tire Changing . . . . . . . . . . . . . . . . 422Full-Size Spare Tire . . . . . . . . . . 431
Jump Starting
Jump Starting - NorthAmerica . . . . . . . . . . . . . . . . . . . . . 432
Towing the Vehicle
To w i n g t h e V e h i c l e . . . . . . . . . . . 4 3 6Recreational VehicleTo w i n g . . . . . . . . . . . . . . . . . . . . . . 4 3 7
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . 441Interior Care . . . . . . . . . . . . . . . . . . 446Floor Mats . . . . . . . . . . . . . . . . . . . . 449
General Information
For service and parts needs, visityour dealer. You will receivegenuine GM parts and GM-trainedand supported service people.
Genuine GM parts have one ofthese marks:
California Proposition
65 Warning
WARNING:Most motor vehicles,including this one, as well as manyof its service parts and fluids,contain and/or emit chemicalsknown to the State of California to

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Vehicle Care 399
for details regarding winter tireavailability and proper tire selection.Also, seeBuying New Tires0415.
With winter tires, there may bedecreased dry road traction,increased road noise, and shortertread life. After changing to wintertires, be alert for changes in vehiclehandling and braking.
If using winter tires:
.Use tires of the same brand andtread type on all four wheelpositions.
.Use only radial ply tires of thesame size, load range, andspeed rating as the originalequipment tires.
Winter tires with the same speedrating as the original equipment tiresmay not be available for H, V, W, Y,and ZR speed rated tires. If wintertires with a lower speed rating arechosen, never exceed the tire'smaximum 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.
All-Terrain Tires
This vehicle may have all-terraintires. These tires provide goodperformance on most road surfaces,weather conditions, and for off-roaddriving. SeeOff-Road Driving0251.
The tread pattern on these tires maywear more quickly than other tires.Consider rotating the tires morefrequently than at 12 000 km(7,500 mi) intervals if irregular wearis noted when the tires areinspected. SeeTireInspection0411.
Tire Sidewall Labeling
Useful information about a tire is
molded into the sidewall. The
examples show a typical
passenger and light truck tire
sidewall.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
402 Vehicle Care
(7) Single Tire Maximum
Load:Maximum load that can
be carried and the maximum
pressure needed to support that
load when used as a single. For
information on recommended
tire pressure seeTire Pressure
0405andVehicle Load
Limits0259.
Tire Designations
Tire Size
The examples show a typical
passenger vehicle and light
truck tire size.
Passenger (P-Metric) Tire
(1) Passenger (P-Metric) Tire:
The United States version of a
metric tire sizing system. The
letter P as the first character in
the tire size means a passenger
vehicle tire engineered to
standards set by the U.S. Tire
and Rim Association.
(2) Tire Width:The three-digit
number indicates the tire section
width in millimeters from
sidewall to sidewall.
(3) Aspect Ratio:Atwo-digit
number that indicates the tire
height-to-width measurements.
For example, if the tire size
aspect ratio is 75, as shown in
item C of the tire illustration, it
would mean that the tire's
sidewall is 75 percent as high as
it is wide.
(4) Construction Code:Aletter
code is used to indicate the type
of ply construction in the tire.
The letter R means radial ply
construction; the letter D means
diagonal or bias ply
construction; and the letter B
means belted-bias ply
construction.
(5) Rim Diameter:Diameter of
the wheel in inches.
(6) Service Description:These
characters represent the load
index and speed rating of the
tire. The load index represents
the load carrying capacity a tire
is certified to carry. The speed
rating is the maximum speed a
tire is certified to carry a load.
Light Truck (LT-Metric) Tire
(1) Light Truck (LT-Metric)
Tire:The United States version
of a metric tire sizing system.
The letters LT as the first two
characters in the tire size mean
alighttrucktireengineeredto
standards set by the U.S. Tire
and Rim Association.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Vehicle Care 403
(2) Tire Width:The three-digit
number indicates the tire section
width in millimeters from
sidewall to sidewall.
(3) Aspect Ratio:Atwo-digit
number that indicates the tire
height-to-width measurements.
For example, if the tire size
aspect ratio is 75, as shown in
item 3 of the light truck
(LT-Metric) tire illustration, it
would mean that the tire's
sidewall is 75 percent as high as
it is wide.
(4) Construction Code:Aletter
code is used to indicate the type
of ply construction in the tire.
The letter R means radial ply
construction; the letter D means
diagonal or bias ply
construction; and the letter B
means belted-bias ply
construction.
(5) Rim Diameter:Diameter of
the wheel in inches.
(6) Load Range:Load Range.
(7) Service Description:The
service description indicates the
load index and speed rating of a
tire. If two numbers are given as
in the example, 120/116, then
this represents the load index for
single versus dual wheel usage
(single/dual). The speed rating is
the maximum speed a tire is
certified to carry a load.
Tire Terminology and
Definitions
Air Pressure:The amount of
air inside the tire pressing
outward on each square inch of
the tire. Air pressure is
expressed in kPa (kilopascal)
or psi (pounds per square inch).
Accessory Weight:The
combined weight of optional
accessories. Some examples of
optional accessories are
automatic transmission, power
windows, power seats, and air
conditioning.
Aspect Ratio:The relationship
of a tire's height to its width.
Belt:Arubbercoatedlayerof
cords between the plies and the
tread. Cords may be made from
steel or other reinforcing
materials.
Bead:The tire bead contains
steel wires wrapped by steel
cords that hold the tire onto
the rim.
Bias Ply Tire:Apneumatictire
in which the plies are laid at
alternate angles less than
90 degrees to the centerline of
the tread.
Cold Tire Pressure:The
amount of air pressure in a tire,
measured in kPa (kilopascal)
or psi (pounds per square inch)
before a tire has built up heat
from driving. SeeTire
Pressure0405.
Curb Weight:The weight of a
motor vehicle with standard and
optional equipment including the

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
412 Vehicle Care
.There is cord or fabric
showing through the tire's
rubber.
.The tread or sidewall is
cracked, cut, or snagged
deep enough to show cord or
fabric.
.The tire has a bump, bulge,
or split.
.The tire has a puncture, cut,
or other damage that cannot
be repaired well because of
the size or location of the
damage.
Tire Rotation
Tires should be rotated every
12 000 km (7,500 mi). See
Maintenance Schedule0452.
Tires are rotated to achieve a
uniform wear for all tires. The
first rotation is the most
important.
Anytime unusual wear is
noticed, rotate the tires as soon
as possible, check for proper tire
inflation pressure, and check for
damaged tires or wheels. If the
unusual wear continues after the
rotation, check the wheel
alignment. SeeWhen It Is Time
for New Tires0414andWheel
Replacement0418.
Use this rotation pattern when
rotating the tires if the vehicle
has single rear wheels.
Dual Tire Rotation
When the vehicle is new,
or whenever a wheel, wheel
bolt, or wheel nut is replaced,
check the wheel nut torque after
160, 1 600, and 10 000 km (100,
1,000, and 6,000 mi) of driving.
For proper torque and wheel nut
tightening information, see
“Removing the Flat Tire and
Installing the Spare Tire”under
Tire Changing0422.
The outer tire on a dual wheel
setup generally wears faster
than the inner tire. Tires last
longer and wear more evenly if
they are rotated. SeeTire
Inspection0411andTire
Rotation0412.Alsosee
Maintenance Schedule0452.
{Warning
If the vehicle is operated with a
tire that is underinflated, the tire
can overheat. An overheated tire
(Continued)