2005 PONTIAC GRAND AM Owners Manual

Notice:If the jumper cables are removed in the
wrong order, electrical shorting may occur and
damage the vehicle. The repairs would not be
covered by your warranty. Remove the jumper
cables in the correct order, making sure that the
cables do not touch each other or other metal.
A. Heavy, Unpainted Metal Engine Part
B. Good Battery
C. Dead BatteryTo disconnect the jumper cables from both vehicles, do
the following:
1. Disconnect the black negative (−) cable from the
vehicle that had the dead battery.
2. Disconnect the black negative (−) cable from the
vehicle with the good battery.
3. Disconnect the red positive (+) cable from the
vehicle with the good battery.
4. Disconnect the red positive (+) cable from the other
vehicle.
Jumper Cable Removal
5-41

Bulb Replacement
For the proper type of replacement bulbs, see
Replacement Bulbs on page 5-45.
For any bulb changing procedure not listed in this
section, contact your dealer.
Halogen Bulbs
{CAUTION:
Halogen bulbs have pressurized gas inside and
can burst if you drop or scratch the bulb. You or
others could be injured. Be sure to read and
follow the instructions on the bulb package.
Headlamps
To replace a headlamp bulb, do the following:
1. Lift up on the two retaining clips which secure the
headlamp assembly.
5-42

2. Lift and pull the headlamp assembly forward, out of
the mounting bracket.
3. Turn the bulb assembly retainer counterclockwise
one-sixth of a turn and pull out the bulb assembly.
4. Unclip the bulb assembly from the wiring harness.
5. Replace the bulb.
6. Reverse Steps 1 through 4 to reinstall the bulb
assembly and headlamp assembly.
Front Turn Signal and Parking
Lamps
To replace a front turn signal or parking lamp bulb, do
the following:
1. Remove the headlamp assembly as described
previously. SeeHeadlamps on page 5-42for
more information.
2. Turn the bulb socket counterclockwise and pull out
the bulb.
3. Unclip the bulb assembly from the wiring harness.
4. Replace the bulb.
When replacing the bulb, be sure to properly align
the bulb with the locating feature in the assembly.
5. Reverse Steps 1 through 3 to reinstall the lamp
assembly.
5-43

Center High-Mounted Stoplamp
(CHMSL)
To replace a center high-mounted stoplamp (CHMSL)
bulb, do the following:
1. Open the trunk lid. SeeTrunk on page 2-11for
more information.
2. Locate the center high-mounted stoplamp (CHMSL)
on the inside of the trunk lid.
3. Remove the three screws to access the bulbs.
4. Pull the bulb out from the socket.
5. Install a new bulb.
6. Reverse the steps to reassemble the lamp
assembly.
Taillamps, Turn Signal, and
Stoplamps
1. Open the trunk. SeeTrunk on page 2-11for more
information.
2. Pull back the trunk trim.3. Remove the four wing nuts to access the taillamp
assembly from inside the vehicle.
4. Remove the taillamp assembly.
5. Press the five tabs to release the plate from
the lamp.
6. Pull the bulb out from the socket.
7. Install a new bulb.
8. Reverse Steps 2 through 5 to reinstall the taillamp
assembly.
5-44

Replacement Bulbs
Exterior Lamp Bulb Number
Back-Up Lamps 3156
Center High-Mounted Stoplamps 912
Headlamps 9007
Parking/Turn Signal Lamps 3157NA or 3157A
Sidemarker Lamps 194NA
Stop/Taillamps 3157
Turn Signal Lamps 3156
For replacement bulbs not listed here, contact your
dealer.
Windshield Wiper Blade
Replacement
Windshield wiper blades should be inspected at least
twice a year for wear or cracking. See “Wiper Blade
Check” inScheduled Maintenance on page 6-4for more
information.
Replacement blades come in different types and are
removed in different ways. Here’s how to remove
the wiper blade:
1. Pull the windshield wiper arm away from the
windshield.2. Push the release lever and slide the wiper assembly
toward the driver’s side of the vehicle.
3. Install a new blade by reversing Steps 1 and 2.
For the proper type and size, seeCapacities and
Specifications on page 5-85.
5-45

Tires
Your new vehicle comes with high-quality tires made by
a leading tire manufacturer. If you ever have questions
about your tire warranty and where to obtain service,
see your GM Warranty booklet for details. For additional
information refer to the tire manufacturer’s booklet
included with your vehicle’s Owner’s Manual.
{CAUTION:
Poorly maintained and improperly used tires
are dangerous.
Overloading your tires can cause
overheating as a result of too much
friction. You could have an air-out and a
serious accident. SeeLoading Your
Vehicle on page 4-30.
Underinated tires pose the same danger
as overloaded tires. The resulting accident
could cause serious injury. Check all tires
CAUTION: (Continued)
CAUTION: (Continued)
frequently to maintain the recommended
pressure. Tire pressure should be checked
when your tires are cold. SeeInflation - Tire
Pressure on page 5-52.
Overinated tires are more likely to be
cut, punctured or broken by a sudden
impact — such as when you hit a pothole.
Keep tires at the recommended pressure.
Worn, old tires can cause accidents. If
your tread is badly worn, or if your tires
have been damaged, replace them.
5-46

Tire Sidewall Labelling
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 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.(B) TPC Spec (Tire Performance Criteria
Specication):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.
(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 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.
(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 see
Uniform Tire Quality Grading on page 5-56.
(G) Maximum Cold Ination Load Limit:Maximum
load that can be carried and the maximum pressure
needed to support that load. Passenger (P-Metric) Tire Example
5-47

(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 flat. If your vehicle has a compact
spare tire, seeCompact Spare Tire on page 5-70
andIf a Tire Goes Flat on page 5-60.
(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 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.
(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 inflated to 60 psi (420 kPa).
For more information on tire pressure and inflation see
Inflation - Tire Pressure on page 5-52.
(F) Tire Size:A combination of letters and numbers
define a tire’s width, height, aspect ratio, construction
type and service description. The letter T as the
first 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 specific tire performance criteria have a TPC
specification code molded onto the sidewall. GM’s TPC
specifications meet or exceed all federal safety
guidelines. Compact Spare Tire Example
5-48