2011 CHEVROLET HHR wheel size

Black plate (73,1)Chevrolet HHR Owner Manual - 2011
installed under or on top of the seat fabric, could
also interfere with the operation of the passenger
sensing system. This could either prevent proper
deployment of the passenger airbag(s) or prevent
the passenger sensing system from properly turning
off the passenger airbag(s). SeePassenger Sensing
System
on page 2‑66.
If you have questions, call Customer Assistance.
The phone numbers and addresses for Customer
Assistance are in Step Two of the Customer
Satisfaction Procedure in this manual. See
Customer Satisfaction Procedure on page 8‑2.
If the vehicle has rollover roof-rail airbags, see
Different Size Tires and Wheels
on page 6‑65for
additional important information.
Q: Because I have a disability, I have to get my vehicle modified. How can I find out whether this
will affect my airbag system?
A: If you have questions, call Customer Assistance.
The phone numbers and addresses for Customer
Assistance are in Step Two of the Customer
Satisfaction Procedure in this manual. See
Customer Satisfaction Procedure on page 8‑2.
In addition, your dealer and the service manual have
information about the location of the airbag sensors,
sensing and diagnostic module and airbag wiring.
Restraint System Check
Checking the Restraint Systems
Safety Belts
Now and then, check that the safety belt reminder light,
safety belts, buckles, latch plates, retractors, and
anchorages are all working properly.
Look for any other loose or damaged safety belt system
parts that might keep a safety belt system from doing its
job. See your dealer to have it repaired. Torn or frayed
safety belts may not protect you in a crash. They can rip
apart under impact forces. If a belt is torn or frayed, get
a new one right away.
Make sure the safety belt reminder light is working. See
Safety Belt Reminders
on page 4‑25for more
information.
Keep safety belts clean and dry. See Care of Safety
Belts
on page 6‑95.
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Black plate (2,1)Chevrolet HHR Owner Manual - 2011
Section 6 Service and Appearance Care
When It Is Time for New Tires . . . . . . . . . . . . . . . . . 6-62
Buying New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-62
Different Size Tires and Wheels . . . . . . . . . . . . . . . 6-65
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . 6-65
Wheel Alignment and Tire Balance . . . . . . . . . . . . 6-67
Wheel Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-67
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-68
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-68
Tire Sealant and Compressor Kit . . . . . . . . . . . . . . 6-70
Tire Sealant and Compressor Kit Storage . . . . . . 6-78
Changing a Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-78
Removing the Spare Tire and Tools . . . . . . . . . . . . 6-80
Removing the Flat Tire and Installing theSpare Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-82
Storing a Flat or Spare Tire and Tools . . . . . . . . . 6-87
Compact Spare Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-91
Appearance Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-92
Interior Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-92
Fabric/Carpet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-93
Leather . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-94
Instrument Panel, Vinyl, and Other Plastic Surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-94
Care of Safety Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-95
Weatherstrips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-95 Washing Your Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 6-95
Cleaning Exterior Lamps/Lenses . . . . . . . . . . . . . . 6-95
Finish Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-96
Windshield and Wiper Blades . . . . . . . . . . . . . . . . . . 6-96
Aluminum or Chrome-Plated Wheels
and Trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-97
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-98
Sheet Metal Damage . . . . . . . . . . . . . . . . . . . . . . . . . . 6-98
Finish Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-98
Underbody Maintenance . . . . . . . . . . . . . . . . . . . . . . . 6-98
Chemical Paint Spotting . . . . . . . . . . . . . . . . . . . . . . . 6-98
Vehicle Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-99
Vehicle Identification Number (VIN) . . . . . . . . . . . . 6-99
Service Parts Identification Label . . . . . . . . . . . . . . 6-99
Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-100
Add-On Electrical Equipment . . . . . . . . . . . . . . . . . 6-100
Headlamp Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-100
Windshield Wiper Fuses . . . . . . . . . . . . . . . . . . . . . . 6-100
Power Windows and Other Power Options . . . 6-100
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . . 6-101
Floor Console Fuse Block . . . . . . . . . . . . . . . . . . . . 6-101
Engine Compartment Fuse Block . . . . . . . . . . . . . 6-104
Capacities and Specifications . . . . . . . . . . . . . . . . . .6-107
6-2

Black plate (51,1)Chevrolet HHR Owner Manual - 2011
(C) Aspect Ratio:A two‐digit number that
indicates the tire height‐to‐width measurements.
For example, if the tire size aspect ratio is 60, as
shown in item C of the illustration, it would mean
that the tire's sidewall is 60 percent as high as it
is wide.
(D) 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.
(E) Rim Diameter
:Diameter of the wheel in
inches.
(F) 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.
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 pounds per square
inch (psi) or kilopascal (kPa).
Accessory Weight
:This means the combined
weight of optional accessories. Some examples of
optional accessories are, automatic transmission,
power steering, power brakes, power windows,
power seats, and air conditioning.
Aspect Ratio
:The relationship of a tire's height to
its width.
Belt
:A rubber coated layer of cords that is
located 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
:A pneumatic tire in which the plies
are laid at alternate angles less than 90 degrees
to the centerline of the tread.
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Black plate (57,1)Chevrolet HHR Owner Manual - 2011
Tire Pressure Monitor Operation
This vehicle may have a Tire Pressure Monitor System
(TPMS). The TPMS is designed to warn the driver when
a low tire pressure condition exists. If your vehicle has
this feature, TPMS sensors are mounted onto each tire
and wheel assembly, excluding the spare tire and wheel
assembly. The TPMS sensors monitor the air pressure
in the vehicle's tires and transmits the tire pressure
readings to a receiver located in the vehicle.
When a low tire pressure
condition is detected, the
TPMS turns on the low
tire pressure warning light
located on the instrument
panel cluster.
If the warning light comes on, stop as soon as possible
and inflate the tires to the recommended pressure
shown on the tire loading information label. See
Loading the Vehicle on page 5‑22.
At the same time a message to check the pressure in a
specific tire appears on the Driver Information Center
(DIC) display. The low tire pressure warning light and
the DIC warning message come on at each ignition
cycle until the tires are inflated to the correct inflation
pressure. Using the DIC, tire pressure levels can be viewed by the driver. For additional information and
details about the DIC operation and displays see
DIC
Operation and Displays
on page 4‑38and DIC
Warnings and Messages on page 4‑40.
The low tire pressure warning light may come on in cool
weather when the vehicle is first started, and then turn
off as you start to drive. This could be an early indicator
that the air pressure in the tire(s) are getting low and
need to be inflated to the proper pressure.
A Tire and Loading Information label shows the size of
your vehicle's original equipment tires and the correct
inflation pressure for your vehicle's tires when they are
cold. See Loading the Vehicle
on page 5‑22, for an
example of the Tire and Loading Information label and
its location on your vehicle. Also see Inflation - Tire
Pressure on page 6‑54.
Your vehicle's TPMS system can warn you about a low
tire pressure condition but it does not replace normal
tire maintenance. See Tire Inspection and Rotation
on
page 6‑60and Tires on page 6‑47.
Notice: Tire sealant materials are not all the same.
A non-approved tire sealant could damage the Tire
Pressure Monitor System (TPMS) sensors. TPMS
sensor damage caused by using an incorrect tire
sealant is not covered by the vehicle warranty.
Always use only the GM approved tire sealant
available through your dealer or included in the
vehicle.
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Black plate (63,1)Chevrolet HHR Owner Manual - 2011
GM's exclusive TPC Spec system considers over
a dozen critical specifications that impact the
overall performance of your vehicle, including
brake system performance, ride and handling,
traction control, and tire pressure monitoring
performance. GM's TPC Spec number is molded
onto the tire's sidewall near the tire size. If the
tires have an all‐season tread design, the TPC
Spec number will be followed by an MS for mud
and snow. SeeTire Sidewall Labeling
on
page 6‑48
for additional information.
GM recommends replacing tires in sets of four.
This is because uniform tread depth on all tires
will help keep your vehicle performing most like it
did when the tires were new. Replacing less than
a full set of tires can affect the braking and
handling performance of your vehicle. See Tire
Inspection and Rotation
on page 6‑60for
information on proper tire rotation.
{WARNING:
Tires could explode during improper service. You
or others could be injured or killed if you attempt
to mount or dismount a tire. Only your dealer or
an authorized tire service center should mount
and dismount the tires.
{WARNING:
Mixing tires could cause you to lose control
while driving. If you mix tires of different
sizes, brands, or types (radial and
bias-belted tires), the vehicle may not handle
properly, and you could have a crash. Using
tires of different sizes, brands, or types may
also cause damage to your vehicle. Be sure
to use the correct size, brand, and type of
tires on all wheels. It is all right to drive with
your compact spare temporarily, as it was
developed for use on your vehicle. See
Compact Spare Tire
on page 6‑91.
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Black plate (64,1)Chevrolet HHR Owner Manual - 2011
{WARNING:
If you use bias-ply tires on the vehicle, the
wheel rim flanges could develop cracks after
many miles of driving. A tire and/or wheel
could fail suddenly, causing a crash. Use
only radial-ply tires with the wheels on the
vehicle.
If you must replace your vehicle's tires with those
that do not have a TPC Spec number, make sure
they are the same size, load range, speed rating,
and construction type (radial and bias‐belted tires)
as your vehicle's 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
on your vehicle. Non‐TPC Spec rated tires may
give a low‐pressure warning that is higher or lower
than the proper warning level you would get with
TPC Spec rated tires. See
Tire Pressure Monitor
System
on page 6‑55.
Your vehicle's original equipment tires are listed
on the Tire and Loading Information Label. See
Loading the Vehicle
on page 5‑22, for more
information about the Tire and Loading
Information Label and its location on your vehicle.
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Black plate (65,1)Chevrolet HHR Owner Manual - 2011
Different Size Tires and Wheels
If you add wheels or tires that are a different size than
your original equipment wheels and tires, this could
affect the way your vehicle performs, including its
braking, ride and handling characteristics, stability, and
resistance to rollover. Additionally, if your vehicle has
electronic systems such as anti‐lock brakes, rollover
airbags, traction control, and electronic stability control,
the performance of these systems can be affected.
{WARNING:
If you add different sized wheels, your vehicle
may not provide an acceptable level of
performance and safety if tires not recommended
for those wheels are selected. You may increase
the chance that you will crash and suffer serious
injury. Only use GM specific wheel and tire
systems developed for your vehicle, and have
them properly installed by a GM certified
technician.
See Buying New Tires
on page 6‑62andAccessories
and Modificationson page 6‑3for additional
information.
Uniform Tire Quality Grading
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
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-type
snow tires, space-saver, or temporary use 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.
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Black plate (68,1)Chevrolet HHR Owner Manual - 2011
Used Replacement Wheels
{WARNING:
Putting a used wheel on the vehicle is dangerous.
You cannot know how it has been used or how far
it has been driven. It could fail suddenly and
cause a crash. If you have to replace a wheel, use
a new GM original equipment wheel.
Tire Chains
{WARNING:
Do not use tire chains. There is not enough
clearance. Tire chains used on a vehicle without
the proper amount of clearance can cause
damage to the brakes, suspension or other
vehicle parts. The area damaged by the tire
chains could cause you to lose control of the
vehicle and you or others may be injured in a
crash.(Continued)
WARNING: (Continued)
Use another type of traction device only if its
manufacturer recommends it for use on the
vehicle and tire size combination and road
conditions. Follow that manufacturer's
instructions. To help avoid damage to the vehicle,
drive slowly, readjust or remove the device if it is
contacting the vehicle, and do not spin the
vehicle's wheels. If you do find traction devices
that will fit, install them on the front tires.
If a Tire Goes Flat
It is unusual for a tire to blowout while you are driving,
especially if you maintain your vehicle's tires properly.
If air goes out of a tire, it is much more likely to leak out
slowly. But if you should ever have a blowout, here are
a few tips about what to expect and what to do:
If a front tire fails, the flat tire creates a drag that pulls
the vehicle toward that side. Take your foot off the
accelerator pedal and grip the steering wheel firmly.
Steer to maintain lane position, and then gently brake to
a stop, well off the road, if possible.
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