tire size CHEVROLET SUBURBAN 2015 11.G Owners Manual

Black plate (27,1)Chevrolet 2015i Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-8431502) - 2015 - crc - 1/12/15
In Brief 1-27
Driving for Better Fuel
Economy
Driving habits can affect fuel
mileage. Here are some driving tips
to get the best fuel economy
possible.
.Avoid fast starts and accelerate
smoothly.
.Brake gradually and avoid
abrupt stops.
.Avoid idling the engine for long
periods of time.
.When road and weather
conditions are appropriate, use
cruise control.
.Always follow posted speed
limits or drive more slowly when
conditions require.
.Keep vehicle tires properly
inflated.
.Combine several trips into a
single trip.
.Replace the vehicle's tires with
the same TPC Spec number
molded into the tire's sidewall
near the size.
.Follow recommended scheduled
maintenance.
Roadside Assistance
Program
U.S.: 1-800-243-8872
TTY Users (U.S. Only):
1-888-889-2438
Canada: 1-800-268-6800
New Chevrolet owners are
automatically enrolled in the
Roadside Assistance Program.
SeeRoadside Assistance Program
on page 13-5.
OnStar®
This vehicle may be equipped with a
comprehensive, in-vehicle system
that can connect to a live OnStar
Advisor for Emergency, Security,
Navigation, Connection, and
Diagnostic Services. OnStar
services may require a paid
subscription. See OnStar Overview
on page 14-1.

Black plate (42,1)Chevrolet 2015i Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-8431502) - 2015 - crc - 1/12/15
3-42 Seats and Restraints
{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 the
vehicle's frame, bumper system,
height, front end, or side sheet
metal may keep the airbag system
from working properly.
The operation of the airbag system
can also be affected by changing
any parts of the front seats, safetybelts, airbag sensing and diagnostic
module, steering wheel, instrument
panel, any airbag module, ceiling or
pillar garnish trim, overhead
console, front sensors, side impact
sensors, airbag wiring, or front
center console.
Your dealer and the service manual
have information about the location
of the airbag sensors, sensing and
diagnostic module, and airbag
wiring.
In addition, the vehicle has a
passenger sensing system that
includes sensors as part of the front
outboard passenger seat. The
passenger sensing system may not
operate properly if the original seat
trim is replaced with non-GM
covers, upholstery, or trim; or with
GM covers, upholstery, or trim
designed for a different vehicle. Any
object, such as an aftermarket seat
heater or a comfort-enhancing pad
or device, installed under or on top
of the seat fabric, could also
interfere with the operation of the
passenger sensing system. Thiscould either prevent proper
deployment of the passenger
airbag(s) or prevent the passenger
sensing system from properly
turning off the passenger airbag(s).
See
Passenger Sensing System on
page 3-37.
If the vehicle has rollover roof-rail
airbags, see Different Size Tires
and Wheels on page 10-64 for
additional important information.
If you have to modify your vehicle
because you have a disability and
you have questions about whether
the modifications will affect the
vehicle's airbag system, or if you
have questions about whether the
airbag system will be affected if the
vehicle is modified for any other
reason, call Customer Assistance.
See Customer Assistance Offices
on page 13-3.

Black plate (42,1)Chevrolet 2015i Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-8431502) - 2015 - crc - 1/12/15
5-42 Instruments and Controls
activate during heavy rain or due to
road spray. The vehicle does not
need service. For cleaning, see
"Washing the Vehicle" under
Exterior Care on page 10-88.
Ride Control System
Messages
SERVICE LEVELING SYSTEM
If the vehicle has the Magnetic Ride
Control™suspension system or
Automatic Level Control, this
message displays when the leveling
system is not operating properly.
Have the vehicle serviced by your
dealer.
SERVICE STABILITRAK
If this message displays, it means
there may be a problem with the
StabiliTrak system. If you see this
message, try to reset the system.
Stop; turn off the engine for at least
15 seconds; then start the engine
again. If this message still comes
on, it means there is a problem. You
should see your dealer for service. The vehicle is safe to drive;
however, you do not have the
benefit of StabiliTrak, so reduce
your speed and drive accordingly.
SERVICE SUSPENSION
SYSTEM
If the vehicle has the Magnetic Ride
Control suspension system, this
message displays when the
suspension system is not operating
properly. Have the vehicle serviced
by your dealer.
SERVICE TRACTION
CONTROL
This message displays when there
is a problem with the Traction
Control System (TCS). When this
message displays, the system will
not limit wheel spin. Adjust your
driving accordingly. See your dealer
for service. See
Traction Control/
Electronic Stability Control on
page 9-44.
STABILITRAK INITIALIZING
This message may come on if the
StabiliTrak system has not fully
initialized because of road
conditions or the incorrect tire size.
When the StabiliTrak system is fully
initialized, the message will turn off.
See Traction Control/Electronic
Stability Control on page 9-44. If this
message continues to be displayed
for multiple ignition cycles and on
different road surfaces, see your
dealer for service.
TRACTION CONTROL OFF
This message displays when the
traction control has been turned off.
See Traction Control/Electronic
Stability Control on page 9-44.
TRACTION CONTROL ON
This message displays when the
traction control is active. See
Traction Control/Electronic Stability
Control on page 9-44.

Black plate (15,1)Chevrolet 2015i Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-8431502) - 2015 - crc - 1/12/15
Driving and Operating 9-15
Warning (Continued)
vehicle handles. This could
cause loss of control and a
crash. Overloading can also
shorten the life of the vehicle.
Tire and Loading Information
Label
Label Example
A vehicle specific Tire and
Loading Information label is
attached to the center pillar (B-pillar). With the driver door
open, you will find the label
attached below the door lock
post (striker). The tire and
loading information label shows
the number of occupant seating
positions (1), and the maximum
vehicle capacity weight (2) in
kilograms and pounds.
The Tire and Loading
Information label also shows the
size of the original equipment
tires (3) and the recommended
cold tire inflation pressures (4).
For more information on tires
and inflation see
Tires on
page 10-46 andTire Pressure
on page 10-53.
There is also important loading
information on the vehicle
Certification/Tire label. It tells
you the Gross Vehicle Weight
Rating (GVWR) and the Gross
Axle Weight Rating (GAWR) for the front and rear axles. See
“Certification/Tire Label”
later in
this section.
“Steps for Determining Correct
Load Limit–
1.Locate the statement "The
combined weight of
occupants and cargo should
never exceed XXX kg or
XXX lbs." on your vehicle’s
placard.
2.Determine the combined
weight of the driver and
passengers that will be riding
in your vehicle.
3.Subtract the combined
weight of the driver and
passengers from XXX kg or
XXX lbs.
4.The resulting figure equals
the available amount of cargo
and luggage load capacity.
For example, if the "XXX"
amount equals 1400 lbs. and

Black plate (17,1)Chevrolet 2015i Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-8431502) - 2015 - crc - 1/12/15
Driving and Operating 9-17
Example 3
1. Vehicle Capacity Weight forExample 3 = 453 kg
(1,000 lbs)
2. Subtract Occupant Weight @ 91 kg (200 lbs) × 5 = 453 kg
(1,000 lbs)
3. Available Cargo Weight = 0 kg (0 lbs)
Refer to your vehicle's tire and
loading information label for
specific information about your
vehicle's capacity weight and
seating positions. The combined weight of the driver, passengers,
and cargo should never exceed
your vehicle's capacity weight.
Certification/Tire Label
A vehicle specific Certification/
Tire label is attached to the
center pillar (B-pillar). The label
shows the size of your vehicle's
original tires and the inflation
pressures needed to obtain the
gross weight capacity of your
vehicle. This is called Gross
Vehicle Weight Rating (GVWR).
The GVWR includes the weight
of the vehicle, all occupants,
fuel, and cargo.
The Certification/Tire label also
tells you the maximum weights
for the front and rear axles,
called Gross Axle Weight Rating
(GAWR). To find out the actual
loads on your front and rear
axles, you need to go to a weigh
station and weigh your vehicle.
Your dealer can help you with
this. Be sure to spread out your
load equally on both sides of the
centerline.
Never exceed the GVWR for
your vehicle, or the GAWR for
either the front or rear axle.
The Certification/Tire label also
contains information about your
Front Axle Reserve Capacity.
And, if you do have a heavy
load, you should spread it out.

Black plate (2,1)Chevrolet 2015i Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-8431502) - 2015 - crc - 1/12/15
10-2 Vehicle Care
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . 10-51
Tire Pressure . . . . . . . . . . . . . . . 10-53
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . 10-55
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . 10-55
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . 10-56
Tire Inspection . . . . . . . . . . . . . . 10-60
Tire Rotation . . . . . . . . . . . . . . . 10-60
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . 10-61
Buying New Tires . . . . . . . . . . . 10-62
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . 10-64
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . 10-64
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . 10-66
Wheel Replacement . . . . . . . . 10-66
Tire Chains . . . . . . . . . . . . . . . . . 10-67
If a Tire Goes Flat . . . . . . . . . . 10-68
Tire Changing . . . . . . . . . . . . . . 10-69
Full-Size Spare Tire . . . . . . . . 10-78
Jump Starting
Jump Starting - North America . . . . . . . . . . . . . . . . . . . 10-79
Towing the Vehicle
Towing the Vehicle . . . . . . . . . 10-83
Recreational VehicleTowing . . . . . . . . . . . . . . . . . . . . 10-83
Appearance Care
Exterior Care . . . . . . . . . . . . . . . 10-88
Interior Care . . . . . . . . . . . . . . . . 10-93
Floor Mats . . . . . . . . . . . . . . . . . . 10-96
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:
California Proposition
65 Warning
WARNING: Most motor vehicles,
including this one, contain and/or
emit chemicals known to the State

Black plate (48,1)Chevrolet 2015i Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-8431502) - 2015 - crc - 1/12/15
10-48 Vehicle Care
.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 or
P285/45R22 size tires, they are
classified as touring tires and
are designed for on road use.
The low-profile, wide tread
design is not recommended for
off-road driving. See Off-Road
Driving on page 9-5, for
additional information.
{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-terrain
tires. These tires provide good
performance on most road surfaces,
weather conditions, and for off-road
driving. See Off-Road Driving on
page 9-5. The tread pattern on these tires may
wear more quickly than other tires.
Consider rotating the tires more
frequently than at 12 000 km
(7,500 mi) intervals if irregular wear
is noted when the tires are
inspected. See
Tire Inspection on
page 10-60.
Tire Sidewall Labeling
Useful information about a tire is
molded into the sidewall. The
example shows a typical
passenger vehicle tire sidewall.

Black plate (49,1)Chevrolet 2015i Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-8431502) - 2015 - crc - 1/12/15
Vehicle Care 10-49
Passenger (P-Metric)/Spare Tire
(1) Tire Size:The tire size code
is a combination of letters and
numbers used to define a
particular tire's width, height,
aspect ratio, construction type,
and service description. See the
“Tire Size” illustration later in this
section for more detail.
(2) TPC Spec (Tire
Performance Criteria
Specification)
:Original
equipment tires designed to
GM's specific tire performance criteria have a TPC specification
code molded onto the sidewall.
GM's TPC specifications meet or
exceed all federal safety
guidelines.
(3) DOT (Department of
Transportation)
:The
Department of Transportation
(DOT) code indicates that the
tire is in compliance with the
U.S. Department of
Transportation Motor Vehicle
Safety Standards.
DOT Tire Date of
Manufacture
:The last four
digits of the TIN indicate the tire
manufactured date. The first two
digits represent the week
(01-52) and the last two digits,
the year. For example, the third
week of the year 2010 would
have a four-digit DOT date
of 0310. (4) Tire Identification Number
(TIN)
:The letters and numbers
following the DOT code are the
Tire Identification Number (TIN).
The TIN shows the
manufacturer and plant code,
tire size, and date the tire was
manufactured. The TIN is
molded onto both sides of the
tire, although only one side may
have the date of manufacture.
(5) Tire Ply Material
:The type
of cord and number of plies in
the sidewall and under the tread.
(6) Uniform Tire Quality
Grading (UTQG)
:Tire
manufacturers are required to
grade tires based on three
performance factors: treadwear,
traction, and temperature
resistance. For more
information, see Uniform Tire
Quality Grading on page 10-64.

Black plate (50,1)Chevrolet 2015i Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-8431502) - 2015 - crc - 1/12/15
10-50 Vehicle Care
(7) Maximum Cold Inflation
Load Limit
:Maximum load that
can be carried and the
maximum pressure needed to
support that load. For
information on recommended
tire pressure see Tire Pressure
on page 10-53 andVehicle Load
Limits on page 9-14.
(8) Temporary Use Only
:Only
use a temporary spare tire until
the road tire is repaired and
replaced. This spare tire should
not be driven on over 112 km/h
(70 mph), or 88 km/h (55 mph)
when pulling a trailer, with the
proper inflation pressure. See
Full-Size Spare Tire on
page 10-78.
Tire Designations
Tire Size
The example shows a typical
passenger vehicle 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
:A two-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
:A letter
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.

Black plate (53,1)Chevrolet 2015i Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-8431502) - 2015 - crc - 1/12/15
Vehicle Care 10-53
Speed Rating:An
alphanumeric code assigned to
a tire indicating the maximum
speed at which a tire can
operate.
Traction
:The friction between
the tire and the road surface.
The amount of grip provided.
Tread
:The portion of a tire that
comes into contact with
the road.
Treadwear Indicators
:Narrow
bands, sometimes called wear
bars, that show across the tread
of a tire when only 1.6 mm
(1/16 in) of tread remains. See
When It Is Time for New Tires
on page 10-61.
UTQGS (Uniform Tire Quality
Grading Standards)
:A tire
information system that provides
consumers with ratings for a
tire's traction, temperature, and
treadwear. Ratings are determined by tire
manufacturers using
government testing procedures.
The ratings are molded into the
sidewall of the tire. See
Uniform
Tire Quality Grading on
page 10-64.
Vehicle Capacity Weight
:The
number of designated seating
positions multiplied by
68 kg (150 lb) plus the rated
cargo load. See Vehicle Load
Limits on page 9-14.
Vehicle Maximum Load on the
Tire
:Load on an individual tire
due to curb weight, accessory
weight, occupant weight, and
cargo weight.
Vehicle Placard
:A label
permanently attached to a
vehicle showing the vehicle
capacity weight and the original
equipment tire size and
recommended inflation pressure. See
“Tire and Loading
Information Label” underVehicle
Load Limits on page 9-14.
Tire Pressure
Tires need the correct amount of
air pressure to operate
effectively.
{Caution
Neither tire underinflation nor
overinflation is good.
Underinflated tires, or tires
that do not have enough air,
can result in:
.Tire overloading and
overheating which could
lead to a blowout.
.Premature or
irregular wear.
.Poor handling.
.Reduced fuel economy.
(Continued)