tire pressure PONTIAC FIREBIRD 1996 Owners Manual

The anti-lock system can change the brake pressure faster than any driver could.
The computer is programmed to
make the most of available tire and road conditions.
1
Here’s how anti-lock works. Let’s say the road is wet. I
You’re driving safely. Suddenly an animal jumps out in
front of you.
4-7
ProCarManuals.com

Hydroplaning
Hydroplaning is dangerous. So much water can build up
under your tires that they can actually ride on the water.
This can happen if the road is wet enough and you’re
going fast enough. When your vehicle is hydroplaning,
it has little or no contact with the road.
Hydroplaning doesn’t happen often. But it can if your
tires haven’t much tread or if the pressure in one or
more is low. It can happen
if a lot of water is standing on
the road. If you can see reflections from trees, telephone
poles or other vehicles, and raindrops “dimple” the
water’s surface, there could be hydroplaning.
Hydroplaning usually happens at higher speeds. There
just isn’t a hard and fast rule about hydroplaning. The
best advice is to slow down when it is raining.
,I ’. -x.
Driving Through Deep Standing Water
NOTICE:
If you drive too quickly through deep puddles or
standing water, water can come in through your engine’s air intake aqd badly damage your
engine. Never drive through water. that is slightly
lower than,the underbody
of your vehicle. If you
can’t avoid deep puddles or standing water, drive
through them very slowly.
Some Other Rainy Weather Tips .‘
Turn on your low-beam headlamps -- not just
your parking lamps
-- to help make you more visible
to others.
Besides slowing down, allow some extra following
distance. And be especially careful when you pass
another vehicle. Allow yourself more clear room
ahead, and be prepared to h,ave your view restricted
by road spray.
a Have good tires with proper tread depth. (See
“Tires” in the Index.)
4-19
ProCarManuals.com

. 'The exit speed is usually posted.
, . :Reduce your speed according to your speedometer, not
- : .' :to your sense of motion. After driving for any distance
at higher speeds, you may tend to think you. are going
slower than you actually are.
.pg I*:., :.'-L. :.& .-.(,-.r
Be€ore Leaving on a Long nip'* A
Make sure you're ready. Try to be well rested. If you
must start when you're not fresh -- such 'as after a day's
, work -- don't plan to make too many miles that first part
of the journey. Wear comfortable clothing and shoes you
can easily drive in.
Is your vehicle ready for a long trip?' If you keep it
serviced
md maintained, it's ready to go. If it needs L
service, have it done before starting out. Of course,
you'll find experienced and able service experts in
Pontiac dealerships all across
North America. They'll be
ready and willing to help if you need it.
,' <:. 8
Here are some things you can check before a trip:
Windshield Washer Fluid: Is the reservoir full? Are
all windows clean inside and outside?
Wiper Blades: Are they in goo,d shape?
Fuel, Engine Oil, Other Fluids: Have you checked
all levels?
Lamps: Are they all working? Are the lenses clean?
Tires: They are vitally important to a safe,
trouble-free
trip. Is the tread good enough for
long-distance driving?
Are the tires all inflated to the
recommended pressure?
Weather Forecasts: What's the weather outlook
along your route? Should .you delay your trip a short
time to avoid a major storm system?
Maps: Do you have up-to-date maps?
4-22
ProCarManuals.com

Run your engine only as long as you must. This saves
fuel. When you run the engine, make it go a little faster
than just idle. That
is, push the accelerator slightly. This
uses less fuel for the heat that you get and it keeps the
battery charged. You will need a well-charged battery to
restart the vehicle, and possibly for signaling later on with your headlamps. Let the heater
run for awhile.
Then, shut the engine
off and close the window almost
all the way to preserve the heat. Start the engine again
and repeat this only when you feel really uncomfortable
from the cold. But do it as little as possible. Preserve the
fuel as long as you can. To help keep warm, you can get
out of the vehicle and do some fairly vigorous exercises
every half hour or
so until help comes.
Loading Your Vehicle
'@I OCCUPANTS VEHICLE CAP. WT.
TIRE-LOADING INFORMATION
FRT. CTR.
RR. TOTAL LBS. KG
MAX. LOADING & GVWR SAME AS VEHICLE
CAPACITY
WEIGHT XXX COLD TIRE
TIRE SIZE SPEED PRESSURE
RTG PSI/KPa
FRT.
RR.
SPA.
IF TIRES ARE HOT, ADD 4PS1/28KPa
SEE OWNER'S MANUAL FOR ADDITIONAL
( INFORMATION
Two labels on your vehicle show how much weight it
may properly carry. The Tire-Loading Information label
found on the 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 aLI
nonfactory-installed options.
ProCarManuals.com

Weight of the Trailer T0ngu.e
The tongue load (A) of any trailer is an important
weight to measure because
it affects,the total capacity
weight
of your vehicle. The capacity weight includes the
curb weight of the vehicle, any cargo’ you may carry in
it, and the people who will be riding in the
vehcle. And
if you will tow
a trailer, you must subtract the tongue
load from your vehicle’s capacity weight because your
vehicle will be carrying that weight, too. See “Loading
Your Vehicle” in the Index for more information about
your vehicle’s maximum load capacity.
-
A B
If you’re using a weight-carrying hitch, the trailer
tongue
(A) should weigh 10%. of the total loaded trailer
weight
(B). If you have a weight-distributing hitch, the
trailer tongue (A)-should weigh 12% of the total loaded
trailer weight
(B).
After you’ve loaded your trailer, weigh the trailer and
then the tongue, separately,
to see if the weights are
proper.
If they aren’t, you may be able to get them right
simply by moving some items around in the trailer.
Total Weight on Your Vehicle’s, Tires
Be sure your vehicle’s tires are inflated’to the
recommended pressure for cold tires. You’ll find these
numbers
on the Certification label at the rear edge of the
driver’s door
‘or see “Loading Your Vehicle” in the
Index. Then be sure you don’t
go over the GVW
limit for your vehicle, including the weight of the
trailer tongue.
ProCarManuals.com

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 Wa).
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 perform well at posted speed limits for
distances up to 3,000 miles (5 000 km), so you can
finish your trip and have your full-size tire repaired or
replaced where you want. 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. When
the compact spare is
on the rear axle, the optional
traction control system will cycle and limit acceleration
for about the first
15 seconds of driving after each
engine start.
I 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
ProCarManuals.com

Tires
We don’t make tires. Your new Pontiac 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 Pontiac Warranty
booklet for details.
Poorly maintained and improperly used tires
are dangerous.
Overloading’ your tires can cause overheating
as a result of too much friction. You codd
have an airout 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.
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 ‘%flation -- Tire Pressure” in this sectiisa
for inflation pressure adjustment for higher
speed driving.
Overinflated tires are more likely to be IC -..&
. : .I
6-45
ProCarManuals.com

Inflation -- Tire Pressure
The Tire-Loading Information label, located 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 1 mile ( 1.6 km).
If you’ll be driving at speeds higher than 100 mph
(160 km/h) where it is legal, raise the cold inflation
pressure
of each tire to 35 psi (240 Pa). When you end
this very high-speed driving, reduce the cold inflation
pressures to those listed on the Tire-Loading
Information label.
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:
Too much flexing
e Too much heat
0 Tire overloading
NOTICE: (Continued)
~ ~~~~
NOTICE: (Continued)
0 Bad wear
0 Bad handling
Bad fuel economy.
If your tires have too much air (overinflation),
you can get the following:
0 Unusual wear
Bad handling
0 Rough ride
Needless damage fram road hazards.
When to Check
Check your tires once a-month or more.
Don’t forget your compact spare tire. It should be
at 61) psi (420 kPa).
How to Check
Use a good quality pocket-type gage to check tire
pressure. You can’t tell if your tires are properly inflated
simply by looking at them.
Radial tires may look properly
inflated even when they’re underidlated.
Be sure to put the valve caps back on the valve stem.
They help prevent
leaks by keeping out dirt and moisture.
ProCarManuals.com

Don’t include the compact spare tire in your
tire rotation.
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.
I
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
attach.& 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 The 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: . .. 1. .. . .. ...
You can see the indicators at three or more places
.. . ‘ : __ .I
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.
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
ProCarManuals.com

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
peeorm these underhood checks at eachfuelfill.
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 the proper
coolant mix 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.
ProCarManuals.com