height CHEVROLET HHR 2009 1.G User Guide

Low-Prole Performance Tire
If your vehicle has P225/45R18 size tires, they are
classied as low-prole performance tires. These
tires are designed for very responsive driving on
wet or dry pavement. You may also notice more
road noise with low-prole performance tires and
that they tend to wear faster.
Notice:If the vehicle has low-prole tires,
they are more susceptible to damage from road
hazards or curb impact than standard prole
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
vehicle warranty does not cover this type of
damage. Keep tires set to the correct ination
pressure and, when possible avoid contact
with curbs, potholes, and other road hazards.
Tire Sidewall Labeling
Useful information about a tire is molded into its
sidewall. The examples below show a typical
passenger vehicle tire and a compact spare tire
sidewall.(A) Tire Size
:The tire size is a combination of
letters and numbers used to dene 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.Passenger (P-Metric) Tire Example
5-54

(F) Tire Size:A combination of letters and
numbers dene a tire’s width, height, aspect
ratio, construction type, and service description.
The letter T as the rst character in the tire size
means the tire is for temporary use only.
(G) TPC Spec (Tire Performance Criteria
Specication)
:Original equipment tires designed
to GM’s specic tire performance criteria have
a TPC specication code molded onto the sidewall.
GM’s TPC specications meet or exceed all
federal safety guidelines.
Tire Size
The following illustration shows an example of a
typical passenger vehicle tire size.
(A) Passenger (P-Metric) Tire
:The United States
version of a metric tire sizing system. The letter P
as the rst character in the tire size means a
passenger vehicle tire engineered to standards set
by the U.S. Tire and Rim Association.(B) Tire Width
:The three-digit number indicates
the tire section width in millimeters from sidewall
to sidewall.
(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 carry
capacity a tire is certied to carry. The speed
rating is the maximum speed a tire is certied to
carry a load.
5-57

Tire Terminology and Denitions
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.Cold Tire Pressure
:The amount of air pressure in
a tire, measured in pounds per square inch (psi) or
kilopascals (kPa) before a tire has built up heat
from driving. SeeInflation - Tire Pressure on
page 5-61.
Curb Weight
:The weight of a motor vehicle with
standard and optional equipment including the
maximum capacity of fuel, oil, and coolant,
but without passengers and cargo.
DOT Markings
:A code molded into the sidewall
of a tire signifying that the tire is in compliance
with the U.S. Department of Transportation (DOT)
motor vehicle safety standards. The DOT code
includes the Tire Identication Number (TIN),
an alphanumeric designator which can also identify
the tire manufacturer, production plant, brand,
and date of production.
GVWR
:Gross Vehicle Weight Rating.
SeeLoading the Vehicle on page 4-25.
GAWR FRT
:Gross Axle Weight Rating for the
front axle. SeeLoading the Vehicle on page 4-25.
5-58

If you need to replace any of your wheels, wheel bolts,
wheel nuts, or Tire Pressure Monitor System (TPMS)
sensors, replace them only with new GM original
equipment parts. This way, you will be sure to have the
right wheel, wheel bolts, wheel nuts, and TPMS sensors
for your vehicle.
{CAUTION:
Using the wrong replacement wheels, wheel bolts,
or wheel nuts on your vehicle can be dangerous.
It could affect the braking and handling of your
vehicle, make your tires lose air and make you
lose control. You could have a collision in which
you or others could be injured. Always use the
correct wheel, wheel bolts, and wheel nuts for
replacement.
Notice:The wrong wheel can also cause problems
with bearing life, brake cooling, speedometer or
odometer calibration, headlamp aim, bumper height,
vehicle ground clearance, and tire or tire chain
clearance to the body and chassis.
SeeChanging a Flat Tire on page 5-76for more
information.
Used Replacement Wheels
{CAUTION:
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
{CAUTION:
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.
CAUTION: (Continued)
5-74

Display
Recongurable Performance..........................3-43
Doing Your Own Service Work........................... 5-4
Dome Lamp ...................................................3-17
Door
Automatic Door Lock....................................2-10
Delayed Locking..........................................2-10
Locks.......................................................... 2-9
Power Door Locks......................................... 2-9
Programmable Automatic Door Unlock............2-10
Rear Door Security Locks.............................2-11
Rear Side Cargo.........................................2-12
Driver
Seat Height Adjuster...................................... 1-3
Driver Information Center (DIC).........................3-48
DIC Operation and Displays..........................3-48
DIC Vehicle Personalization..........................3-56
DIC Warnings and Messages........................3-50
Driving
At Night.....................................................4-18
Before a Long Trip......................................4-20
Defensive..................................................... 4-2
Drunk.......................................................... 4-3
Highway Hypnosis.......................................4-20
Hill and Mountain Roads..............................4-21
In Rain and on Wet Roads...........................4-19
Loss of Control...........................................4-16Driving (cont.)
Off-Road Recovery......................................4-16
Rocking Your Vehicle to Get it Out.................4-25
Winter........................................................4-22
Driving for Better Fuel Economy......................... 4-2
E
E85 Fuel......................................................... 5-7
EDR .............................................................7-18
Electrical Equipment
Add-On Equipment.....................................5-108
Electrical System
Engine Compartment Fuse Block.................5-111
Floor Console Fuse Block...........................5-109
Fuses and Circuit Breakers.........................5-109
Headlamp Wiring.......................................5-108
Power Windows and Other Power Options....5-108
Windshield Wiper Fuses.............................5-108
Electronic Immobilizer
PASS-Key
®III+...........................................2-20
Electronic Immobilizer Operation
PASS-Key
®III+...........................................2-21
Electronic Stability Control................................. 4-7
Electronic Stability Control Indicator Light...........3-35
5

Heater...........................................................3-21
Engine Coolant...........................................2-27
Height Adjuster, Driver Seat............................... 1-3
Hideaway Rear Storage Bins............................2-55
Highbeam On Light.........................................3-41
Highway Hypnosis...........................................4-20
Hill and Mountain Roads..................................4-21
Hood
Checking Things Under................................5-12
Release.....................................................5-13
Horn ............................................................... 3-6
How to Wear Safety Belts Properly...................1-18
Hydraulic Clutch.............................................5-26
I
Ignition Positions.............................................2-23
Indicator/Warning LIghts
Enhanced Traction System (ETS)...................3-34
Infants and Young Children, Restraints...............1-35
Ination - Tire Pressure...................................5-61
Instrument Panel
Brightness..................................................3-17
Cluster.......................................................3-27
Overview..................................................... 3-4
Storage Area..............................................2-51
Introduction...................................................... 6-2
J
Jump Starting.................................................5-39
K
Keyless Entry, Remote Operation........................ 2-4
Keyless Entry System....................................... 2-4
Keys............................................................... 2-3
L
Labeling, Tire Sidewall.....................................5-54
Lamp
Malfunction Indicator....................................3-37
Lamps
Daytime Running (DRL)................................3-15
Dome ........................................................3-17
License Plate..............................................5-51
Mirror Reading............................................3-17
Rear Reading.............................................3-17
Lap-Shoulder Belt...........................................1-26
LATCH System for Child Restraints...................1-43
Liftgate
Carbon Monoxide........................................2-12
Lighting
Entry/Exit...................................................3-17
8

Recongurable Performance Display (RPD)........3-43
Recreational Vehicle Towing.............................4-31
Reimbursement Program, GM Mobility................. 7-7
Remote Keyless Entry (RKE) System.................. 2-4
Remote Keyless Entry (RKE) System, Operation . . . 2-4
Remote Vehicle Start........................................ 2-7
Removing the Flat Tire and Installing
the Spare Tire.....................................5-80, 5-85
Removing the Spare Tire and Tools...................5-77
Replacement Bulbs.........................................5-51
Replacement Parts, Maintenance......................6-16
Reporting Safety Defects
Canadian Government..................................7-16
General Motors...........................................7-16
United States Government............................7-16
Restraint System Check
Checking the Restraint Systems....................1-79
Replacing Restraint System Parts
After a Crash..........................................1-80
Retained Accessory Power (RAP)......................2-25
Ride Control Systems....................................... 4-7
Electronic Stability (ESC)................................ 4-7
Enhanced Traction System (ETS)...................4-13
Roadside Assistance Program............................ 7-7
Rocking Your Vehicle to Get it Out....................4-25
Roof
Sunroof......................................................2-56
Roof Rack System..........................................2-54
Running the Vehicle While Parked.....................2-38S
Safety Belt Reminders.....................................3-29
Safety Belts
Care of ....................................................5-102
Extender....................................................1-31
How to Wear Safety Belts Properly................1-18
Lap-Shoulder Belt........................................1-26
Safety Belts Are for Everyone.......................1-13
Use During Pregnancy.................................1-31
Safety Defects
Reporting to the Canadian Government................7-16
Reporting to General Motors.........................7-16
Reporting to the United States Government.....7-16
Safety Warnings and Symbols.............................. iii
Scheduled Maintenance..................................... 6-4
Additional Required Services........................... 6-7
Scheduling Appointments.................................7-11
Seatback, Folding Passenger............................. 1-8
Seats
Driver Seat Height Adjuster............................. 1-3
Heated Seats............................................... 1-4
Passenger Folding Seatback........................... 1-8
Power Lumbar .............................................. 1-4
Power Seat.................................................. 1-3
Reclining Seatbacks...................................... 1-5
Split Folding Rear Seat................................1-10
Securing a Child Restraint
Rear Seat Position......................................1-51
Right Front Seat Position..............................1-54
12