2007 PONTIAC GRAND PRIX height

To adjust the vertical aim, do the following:
1. Open the hood. SeeHood Release on
page 345for more information.
Find the aim dot on the lens of the
low-beam lamp.
2. Locate the aim dot on the lens of the
low-beam headlamp.
3. Measure the distance from the ground to the
aim dot on the lamp. Record the distance.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.
6. Turn on the low-beam headlamps and place a
piece of cardboard or equivalent in front of the
headlamp not being aimed. This should
allow only the beam of light from the headlamp
being aimed to be seen on the at surface.
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.
389

(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.
(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.(D) Tire Identication Number (TIN):The letters
and numbers following 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.
(E) Tire Ply Material:The type of cord and
number of plies in the sidewall and under
the tread.
(F) 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 seeUniform Tire Quality Grading on
page 418.
(G) Maximum Cold Ination Load
Limit:Maximum load that can be carried
and the maximum pressure needed to support
that load.
402

(A) Temporary Use Only:The compact spare
tire or temporary use tire has a tread life of
approximately 3,000 miles (5 000 km) and should
not be driven at speeds over 65 mph (105 km/h).
The compact spare tire is for emergency use when
a regular road tire has lost air and gone at. If
your vehicle has a compact spare tire, see
Compact Spare Tire on page 447andIf a Tire
Goes Flat on page 422.(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 408.
(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.
Compact Spare Tire Example
403

(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 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.
404

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.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. SeeInation - Tire Pressure on
page 408.
Curb Weight:This means 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. See
Loading Your Vehicle on page 317.
GAWR FRT:Gross Axle Weight Rating for the
front axle. SeeLoading Your Vehicle on page 317.
405

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 435for more
information.
Used Replacement Wheels
{CAUTION:
Putting a used wheel on your 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.
420

Removing the Spare Tire and Tools............ 436
Replacement Bulbs..................................... 398
Replacement, Windshield............................. 399
Reporting Safety Defects
Canadian Government............................. 510
General Motors........................................ 510
United States Government....................... 510
Restraint System Check
Checking the Restraint Systems................. 80
Replacing Restraint System Parts
After a Crash......................................... 81
Retained Accessory Power (RAP)................ 106
Right Front Passenger Position,
Safety Belts............................................... 31
Roadside
Assistance Program................................. 498
Rocking Your Vehicle to Get it Out.............. 316
Routing, Engine Drive Belt.......................... 485
Running the Engine While Parked............... 120
S
Safety Belt
Passenger Reminder Light....................... 172
Pretensioners............................................. 38
Reminder Light........................................ 171Safety Belts
Care of.................................................... 452
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.................... 17
Shoulder Belt Height Adjuster.................... 30
Safety Warnings and Symbols......................... 4
Scheduled Maintenance............................... 473
Seatback, Folding Passenger........................ 14
Seats
Head Restraints......................................... 13
Heated Seats............................................. 10
Manual Passenger....................................... 8
Passenger Folding Seatback...................... 14
Power Lumbar............................................. 9
Power Seat................................................. 8
Reclining Seatbacks................................... 10
Split Folding Rear Seat.............................. 16
523

Securing a Child Restraint
Rear Seat Position..................................... 58
Right Front Seat Position........................... 60
Service........................................................ 336
Accessories and Modications.................. 336
Adding Equipment to the Outside of Your
Vehicle................................................. 338
California Proposition 65 Warning............. 337
Doing Your Own Work............................. 337
Engine Soon Light................................... 180
Publications Ordering Information............. 511
Servicing Your Airbag-Equipped Vehicle......... 78
Setting the Time.......................................... 234
Sheet Metal Damage................................... 455
Shifting Into Park (P)................................... 116
Shifting Out of Park (P)............................... 117
Shoulder Belt Height Adjuster........................ 30
Signals, Turn and Lane-Change.................. 136
Spare Tire
Compact.................................................. 447
Installing.................................................. 438
Removing................................................ 436
Storing..................................................... 445
Specications, Capacities............................ 466
Speedometer............................................... 170
Split Folding Rear Seat................................. 16
StabiliTrak
®Plus System............................. 295Starting Your Engine................................... 107
Steering...................................................... 296
Steering Wheel Controls, Audio................... 277
Steering Wheel, Tilt Wheel.......................... 135
Storage Areas
Center Console Storage Area................... 127
Convenience Net..................................... 127
Cupholder(s)............................................ 126
Front Seat Storage Net............................ 127
Glove Box................................................ 126
Sunglasses Storage Compartment............ 127
Stuck in Sand, Mud, Ice, or Snow............... 316
Sun Visors.................................................. 100
Sunroof....................................................... 128
T
Tachometer................................................. 171
Taillamps
Turn Signal, and Stoplamps..................... 395
TCS Warning Light...................................... 178
Theft-Deterrent, Radio................................. 277
Theft-Deterrent Systems.............................. 100
Content Theft-Deterrent............................ 100
PASS-Key
®III .......................................... 102
PASS-Key®III Operation.......................... 103
524