2007 PONTIAC G5 height

4. At the wall measure from the ground
upward (A) to the recorded distance
from Step 3 and mark it.
5. Draw or tape a horizontal line (B) on the wall
the width of the vehicle at the height of the
mark in Step 4.
Notice:Do not cover a headlamp to improve
beam cut-off when aiming. Covering a
headlamp may cause excessive heat build-up
which may cause damage to the headlamp.6. Turn on the low-beam headlamps and place a
piece of cardboard or equivalent in front of the
headlamp not being adjusted. Do not place
directly on the headlamp. This allows only the
beam of light from the headlamp being
adjusted to be seen on the at surface.
7. Locate the vertical headlamp aiming screws,
which are under the hood near each headlamp
assembly.
The adjustment screw can be turned with a
6 mm socket wrench.
8. Turn the vertical aiming screw until the
headlamp beam is aimed to the horizontal tape
line. Turn it clockwise or counterclockwise to
raise or lower the angle of the beam.
311

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.
(B) 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. If your vehicle has 205/55R16
size tires, they meet the GM TPC Spec rating, but
the TPC Spec code has not been molded onto the
tire’s sidewall.
(C) 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.
Passenger (P-Metric) Tire Example
321

(B) Tire Ply Material:The type of cord and
number of plies in the sidewall and under the
tread.
(C) Tire Identication Number (TIN):The letters
and numbers following the DOT (Department of
Transportation) code is the Tire Identication
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.
(D) Maximum Cold Ination Load Limit:
Maximum load that can be carried and the
maximum pressure needed to support that load.
(E) Tire Ination:The temporary use tire or
compact spare tire should be inated to 60 psi
(420 kPa). For more information on tire pressure
and ination seeInation - Tire Pressure on
page 327.
(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. A tire size
without the letter P as the rst character is certied
to European standards.
323

(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 range and speed rating of the
tire. The load index represents the load carry
capacity a tire is certied to carry. The load index
can range from 1 to 279. The speed rating is the
maximum speed a tire is certied to carry a load.
Speed ratings range from A to Z.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/
transaxle, 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.
324

Wheel Replacement
Replace any wheel that is bent, cracked, or badly
rusted or corroded. If wheel nuts keep coming
loose, the wheel, wheel bolts, and wheel nuts
should be replaced. If the wheel leaks air, replace
it (except some aluminum wheels, which can
sometimes be repaired). See your dealer if any
of these conditions exist.
Your dealer will know the kind of wheel you need.
Each new wheel should have the same
load-carrying capacity, diameter, width, offset and
be mounted the same way as the one it replaces.
If you need to replace any of your wheels, wheel
bolts, or wheel nuts, replace them only with new
GM original equipment parts. This way, you will be
sure to have the right wheel, wheel bolts, and wheel
nuts 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 338for more
information.
335

Control of a Vehicle..................................... 222
Convenience Net......................................... 131
Coolant
Engine Temperature Warning Light........... 167
Heater, Engine......................................... 112
Surge Tank Pressure Cap........................ 290
Cooling System........................................... 292
Cruise Control............................................. 143
Cupholder(s)................................................ 131
Customer Assistance Information
Courtesy Transportation........................... 401
Customer Assistance for
Text Telephone (TTY) Users................. 397
Customer Assistance Offices.................... 397
Customer Satisfaction Procedure.............. 394
GM Mobility Reimbursement Program...... 398
Reporting Safety Defects to
General Motors..................................... 409
Reporting Safety Defects to the
Canadian Government.......................... 409
Reporting Safety Defects to the
United States Government.................... 409
Roadside Assistance Program.................. 399
Service Publications Ordering
Information........................................... 410D
Daytime Running Lamps............................. 147
Disc, MP3................................................... 205
Doing Your Own Service Work.................... 269
Dome Lamp................................................ 149
Door
Automatic Door Lock................................. 96
Delayed Locking........................................ 95
Locks......................................................... 94
Power Door Locks..................................... 95
Programmable Automatic Door Unlock....... 96
Rear Door Security Locks.......................... 96
Driver
Position, Safety Belt................................... 22
Seat Height Adjuster.................................... 9
Driver Information Center (DIC)................... 174
DIC Operation and Displays..................... 174
DIC Vehicle Personalization..................... 179
DIC Warnings and Messages................... 177
Driver’s Storage Compartment..................... 131
Driving
At Night................................................... 234
City.......................................................... 238
Defensive................................................. 218
Drunken................................................... 219
Freeway................................................... 239
416

H
Hazard Warning Flashers............................ 138
Head Restraints............................................ 13
Headlamp
Aiming..................................................... 309
Headlamp Wiring......................................... 363
Headlamps.................................................. 146
Bulb Replacement.................................... 312
Daytime Running Lamps.......................... 147
Flash-to-Pass........................................... 141
Halogen Bulbs......................................... 312
Headlamps, Front Turn Signal,
Sidemarker, and Parking Lamps........... 313
High/Low Beam Changer......................... 140
On Reminder........................................... 147
Wiper Activated........................................ 147
Heated Seats................................................ 10
Heater......................................................... 152
Height Adjuster, Driver Seat............................ 9
Highbeam On Light..................................... 173
Highway Hypnosis....................................... 241
Hill and Mountain Roads............................. 241
Hood
Checking Things Under............................ 276
Release................................................... 277Horn............................................................ 138
How to Wear Safety Belts Properly............... 22
Hydraulic Clutch.......................................... 286
I
Ignition Positions......................................... 107
Infants and Young Children, Restraints .......... 42
Ination - Tire Pressure............................... 327
Instrument Panel
Overview.................................................. 136
Instrument Panel (I/P)
Brightness................................................ 148
Cluster..................................................... 158
J
Jump Starting.............................................. 304
K
Keyless Entry System................................... 86
Keys............................................................. 85
419

S
Safety Belt
Passenger Reminder Light....................... 160
Pretensioners............................................. 38
Reminder Light........................................ 160
Safety Belts
Care of.................................................... 356
Driver Position........................................... 22
How to Wear Safety Belts Properly............ 22
Questions and Answers About
Safety Belts............................................ 21
Rear Safety Belt Comfort Guides............... 35
Rear Seat Passengers............................... 32
Right Front Passenger Position.................. 31
Safety Belt Extender.................................. 38
Safety Belt Use During Pregnancy............. 31
Safety Belts Are for Everyone.................... 16
Shoulder Belt Height Adjuster.................... 30
Scheduled Maintenance............................... 375Seats
Driver Seat Height Adjuster.......................... 9
Easy Entry Seat........................................ 14
Head Restraints......................................... 13
Heated Seats............................................. 10
Manual........................................................ 8
Manual Lumbar............................................ 9
Reclining Seatbacks................................... 10
Split Folding Rear Seat.............................. 15
Securing a Child Restraint
Rear Seat Position..................................... 57
Right Front Seat Position........................... 60
Security Light.............................................. 172
Service........................................................ 268
Accessories and Modications.................. 268
Adding Equipment to the Outside of
Your Vehicle......................................... 270
California Proposition 65 Warning............. 269
Doing Your Own Work............................. 269
Engine Soon Light................................... 168
Publications Ordering Information............. 410
424