inflation pressure PONTIAC FIREBIRD 1998 Owners Manual

Loading Your Vehicle
TIRE- LOADING INFORMATION
OCCUPANTS VEHICLE CAf
yv 1, nDD 28KPA(4LBS)
'q s Manual for tire pressure needed at
l~lH(100 mph) or higher speeds, where legal, and for additional tire information
Two labels on your vehicle show how much weight it
may properly
carry. The Tire-Loading Information label
found on the rear edge of driver's door tells you the
proper size, speed rating and recommended inflation
pressures for the tires
on your vehicle. It also gives you
important information about the number
of people that
can be in your vehicle and the total weight that you
can
carry. This weight is called the vehicle capacity weight
and includes the weight
of all occupants, cargo, and all
nonfactory-installed options.
MFD BY GENERAL MOTORS CORP
DATE GWR GAM FRT
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THIS VEHICLE CONFORMS TO ALL
VEHICLE
SAFm BUMPER,QPT
EFFECT ON THE b~ WN ABOVE.
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The other label is the Certification label, found on the
rear edge
of the driver's door. It tells you the gross
weight capacity
of your vehicle, called GVWR (Gross
Vehicle Weight Rating). The GVWR includes the weight
of the vehicle, all occupants, fuel and cargo. Never
exceed the
GVWR for your vehicle, or the Gross Axle
Weight Rating
(GAWR) for either the front or rear axle.
And,
if you do have a heavy load, you should spread it
out. Don't carry more than
100 lbs. (45 kg) in your
rear area.

Compact Spare Tire
Although the compact spare tire was fully inflated when
your vehicle was new, it can lose air after a time. Check
the inflation pressure regularly. It should be 60 psi
(420 kPa).
After installing the compact spare on your vehicle, you
should stop
as soon as possible and make sure your spare
tire is correctly inflated. The compact spare is made to
perfom well at speeds up
to 65 mph (105 km/h) for
distances
up to 3,000 miles (5 OOO km), so you can finish
your trip and have your full-size tire repaired or replaced
where you want. (When the compact spare is used on the
rear axle, see Notice following.) Of course, it’s best to
replace
your spare with a full-size tire as soon as you can.
Your spare will last longer and be in good shape in case
you need it again.
NOTICE:
If the compact spare is used as a rear tire, do not
drive faster than
50 mph (80 M). Damage to
the rear axle may occur if the compact spare is
driven faster than
50 mph (80 km/h).
NOTICE:
When the compact spare is installed, don’t take
your vehicle through
an automatic car wash with
guide rails. The compact spare can get caught on
the rails. That can damage the tire and wheel,
and maybe other parts of your vehicle.
5-40

Tires
Your new vehicle comes with high-quality tires made by
a leading tire manufacturer. If you ever have questions
about
your tire wmanty and where to obtain service, see
your Pontiac Warranty booklet for details.
I A 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. See “Loading
Your Vehicle” in
the Index.
Underinflated tires pose the same danger
as overloaded tires. The resulting accident
could cause serious injury. Check all tires
frequently to maintain the recommended
pressure. Tire pressure should be checked
when your tires are cold.
CAUTION: (Continued) CAUTION:
(Continued)
I
Overinflated tires are mo
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.
See “Inflation
-- Tire Pressure” in this section
for inflation pressure adjustment for higher
speed driving.
6-44

Inflation -- Tire Pressure
The Tire-Loading Information label, which is on the
driver’s door, shows the correct inflation pressures
for
your tires when they’re cold. “Cold” means your vehicle\
has been sitting for at least three hours
or driven no
more than
I mile (1.6 km).
If you’ll be driving at high speeds (e.g., speeds of
100 mph (160 km/h or higher), where it is legal, set
the cold inflation pressure to the maximum inflation
pressure shown on the tire sidewall, or to
38 psi
(265 Wa), whichever is lower. See the example below.
When you end this high-speed driving, return to the cold inflation pressures shown on the Tire-Loading
Information label.
Example: You’ll find maximum load and inflation pressure
molded on the tire’s sidewall, in small letters, near the
rim flange. It will read something like this: Maximum
load
690 kg (1521 lbs.) 0 300 kPa (44 psi) Max. Press.
For this example, you would set the inflation pressure
for high-speed driving at
38 psi (265 Wa).
NOTICE:
Don’t let anyone tell you that underinflation or
overinflation is all right.
It’s not. If your tires
don’t have enough air (underinflation), you can
get the following:
0 Too much flexing
0 Too much heat
0 Tire overloading
0 Bad wear
0 Bad handling
Bad fuel economy.
If your tires have too much air (overinflation),
you can get the following:
Unusual wear
0 Bad handling
0 Rough ride
0 Needless damage from road hazards.
6-45

After the tires have been rotated, adjust the front and
rear inflation pressures as shown on the Tire-Loading
Information label. Make certain that
all wheel nuts
are properly tightened. See “Wheel Nut Torque” in
the Index.
1 A CAUTION:
Rust or dirt on a wheel, or on the parts to which
it
is fastened, can make wheel nuts become loose
after
a time. The wheel could come off and cause
an accident. When you change a wheel, remove
any rust or dirt from places where the wheel
attaches to
the vehicle. In an emergency, you can
use a cloth or a paper towel to do this; but be
sure to use
a scraper or wire brush later, if you
need to, to get all the rust or
dirt off. (See
“Changing
a Flat Tire” in the Index.) When
It’s Time for New Tires
One
way to tell when it’s
time for new
tires is to
check the treadwear
indicators, which will
appear when
your tires have
only
1/16 inch (1.6 mm) or
less
of tread remaining.
You need a new tire
if any of the following statements
are true:
You can see the indicators at three or more places
around the tire.
You can see cord or fabric showing through the
tire’s rubber.
The tread or sidewall is cracked, cut or snagged deep
enough
to show cord or fabric.
The tire has a bump, bulge or split.
0 The tire has a puncture, cut or other damage that
can’t be repaired well because
of the size or location
of the damage.
6-48

Part B: Owner Checks and Services
Listed below are owner checks and services which
should be performed at the intervals specified to help
ensure the safety, dependability and emission control
performance
of your vehicle.
Be sure
any necessary repairs are completed at once.
Whenever any fluids or lubricants
are added to your
vehicle, make sure they are the proper ones, as shown
in Part D.
At Each Fuel Fill
It is important for you or a service station attendant to
pe$orm these underhood
checks at each fuel fill.
Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary. See “Engine Oil” in the Index for
further details.
Engine Coolant Level Check
Check the engine coolant level and add DEX-COOL@
coolant mixture if necessary. See “Engine Coolant” in
the Index for further details.
Windshield Washer Fluid Level Check
Check the windshield washer fluid level in the
windshield washer
tank and add the proper fluid if
necessary. See “Windshield Washer Fluid” in the
Index for further details.
At Least Once a Month
Tire Inflation Check
Make sure tires are inflated to the correct pressures.
See “Tires”
in the Index for further details.
Cassette Deck Service
Clean cassette deck. Cleaning should be done every
50 hours of tape play. See “Audio Systems” in the
Index for further details.
7-32

THEFTLOCK TM (Theft-Deterrent Feature) ........... 3- 17
Thermostat .................................... 6-3 1
Third Gear. Automatic Transmission ................ 2-32
Tilt Steering Wheel
............................. 2-46
Tire. Storing Tire and Tools
....................... 5-38
Tire Chains
.................................... 6-52
TireLoading ................................... 4-30
Tire-Loading Information Label
................... 4-30
Tires
......................................... 6-44
Alignment and Balance
........................ 6-51
Buying New ................................. 6-49
Chains
..................................... 6-52
Changing a Flat
.............................. 5-27
Cleaning
.................................... 6-59
Compact Spare
............................... 5-40
Inflation
.................................... 6-45
Inflation Check
............................... 7-32
Inspection and Rotation
........................ 6-46
Loading
.................................... 4-30
Pressure
.................................... 6-45
Temperature
................................. 6-5 1
Traction .................................... 6-50
Treadwear
................................... 6-50
Uniform Quality Grading
....................... 6-50
Wear Indicators
.............................. 6-48
Wheel Replacement
........................... 6-5 1
When It’s Time for New ....................... 6-48
TopStrap
..................................... 1-39
TorqueLock
................................... 2-40 Torque. Wheel Nut
....................... 5.37. 6.68
TowingaTrailer
................................ 4-32
Towing Your Vehicle
............................. 5-8
Control System ................................ 4-8
Backing Up with
............................. 4-36
Driving on Grades
............................ 4-37
Engine Cooling When Towing
................... 4-38
Following Distance
........................... 4-36
Hitches ..................................... 4-35
If You Do Decide To Pull
A ..................... 4-33
Maintenance When Towing
..................... 4-38
MakingTurns
................................ 4-37
ParkingonHills
.............................. 4-38
Traction
Control
Off Button ............................. 4-10
Control System Warning Light
.............. 2.83. 4.9
Trailer
Brakes
..................................... 4-35
Drivingwith
................................. 4-36
Passing with
................................. 4-36
Safety Chains
................................ 4-35
Total Weight on Tires
.......................... 4-35
Tongueweight
............................... 4-34
Towing
..................................... 4-32
Turnsignals
................................. 4-37
Weight
..................................... 4-33
Automatic ................................... 6-20
Manual
..................................... 6-24
Transmitters, Remote Keyless Entry
................. 2-6
9-11