tire pressure PONTIAC SOLSTICE 2007 Owners Manual

Let us say the road is wet and you are driving
safely. Suddenly, an animal jumps out in front of
you. You slam on the brakes and continue braking.
Here is what happens with ABS:
A computer senses that wheels are slowing down.
If one of the wheels is about to stop rolling, the
computer will separately work the brakes at each
wheel.ABS can change the brake pressure faster than
any driver could. The computer is programmed to
make the most of available tire and road
conditions. This can help you steer around the
obstacle while braking hard.
As you brake, your computer keeps receiving
updates on wheel speed and controls braking
pressure accordingly.
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Of course, traction is reduced when water,
snow, ice, gravel, or other material is on the
road. For safety, you will want to slow down and
adjust your driving to these conditions. It is
important to slow down on slippery surfaces
because stopping distance will be longer and
vehicle control more limited.
While driving on a surface with reduced traction,
try your best to avoid sudden steering, acceleration,
or braking, including reducing vehicle speed by
shifting to a lower gear. Any sudden changes could
cause the tires to slide. You may not realize the
surface is slippery until your vehicle is skidding.
Learn to recognize warning clues — such as
enough water, ice, or packed snow on the road to
make a mirrored surface — and slow down when
you have any doubt.
If you have the Anti-Lock Brake System (ABS),
remember: It helps avoid only the braking skid.
If you do not have ABS, then in a braking skid,
where the wheels are no longer rolling, release
enough pressure on the brakes to get the wheels
rolling again. This restores steering control. Push
the brake pedal down steadily when you have to
stop suddenly. As long as the wheels are rolling,
you will have steering control.Driving at Night
Night driving is more dangerous than day driving.
One reason is that some drivers are likely to
be impaired — by alcohol or drugs, with night
vision problems, or by fatigue.
Here are some tips on night driving.
Drive defensively.
Do not drink and drive.
Adjust the inside rearview mirror to reduce the
glare from headlamps behind you.
Since you cannot see as well, you may need
to slow down and keep more space between
you and other vehicles.
Slow down, especially on higher speed roads.
Your vehicle’s headlamps can light up only so
much road ahead.
In remote areas, watch for animals.
If you are tired, pull off the road in a safe
place and rest.
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{CAUTION:
Wet brakes can cause accidents. They
may not work as well in a quick stop and
may cause pulling to one side. You could
lose control of the vehicle.
After driving through a large puddle of
water or a car wash, apply your brake pedal
lightly until your brakes work normally.
Driving too fast through large water puddles or
even going through some car washes can cause
problems, too. The water may affect your
brakes. Try to avoid puddles. But if you cannot,
try to slow down before you hit them.
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 are going fast enough. When your
vehicle is hydroplaning, it has little or no contact
with the road.Hydroplaning does not happen often. But it can
if your tires do not have 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 reections 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 is not a hard and fast rule about
hydroplaning. The best advice is to slow down
when it is raining.
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 and badly
damage your engine. Never drive through water
that is slightly lower than the underbody of your
vehicle. If you cannot avoid deep puddles or
standing water, drive through them very slowly.
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Tires:They are vitally important to a safe,
trouble-free trip. Is the tread good enough
for long-distance driving? Are the tires
all inated to the recommended pressure?
Weather Forecasts:What is 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?
Highway Hypnosis
Is there actually such a condition as highway
hypnosis? Or is it just plain falling asleep at the
wheel? Call it highway hypnosis, lack of
awareness, or whatever.
There is something about an easy stretch of road
with the same scenery, along with the hum of the
tires on the road, the drone of the engine, and the
rush of the wind against the vehicle that can make
you sleepy. Do not let it happen to you! If it does,
your vehicle can leave the road in less than a
second, and you could crash and be injured.What can you do about highway hypnosis?
First, be aware that it can happen.
Then here are some tips:
Make sure your vehicle is well ventilated, with
a comfortably cool interior.
Keep your eyes moving. Scan the road ahead
and to the sides. Check your rearview mirrors
and your instruments frequently.
If you get sleepy, pull off the road into a rest,
service, or parking area and take a nap, get
some exercise, or both. For safety, treat
drowsiness on the highway as an emergency.
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Tire and Loading Information Label
A vehicle specic Tire and Loading Information
label is attached to the center pillar (B-pillar)
of your vehicle. With the driver’s door open,
you will nd the label attached below the door
latch. This label shows the number of occupant
seating positions (A), and the maximum vehicle
capacity weight (B) in kilograms and pounds.The Tire and Loading Information label also shows
the size of the original equipment tires (C) and
the recommended cold tire ination pressures (D).
For more information on tires and ination see
Tires on page 284andInation - Tire Pressure
on page 292.
There is also important loading information on the
vehicle Certication label. It tells you the Gross
Vehicle Weight Rating (GVWR) and the Gross
Axle Weight Rating (GAWR) for the front and
rear axle. See “Certication Label” later in
this section.
Steps for Determining Correct Load Limit
1. Locate the statement “The combined
weight of occupants and cargo should never
exceed XXX kg or XXX lbs” on your
vehicle’s placard.
2. Determine the combined weight of the driver
and passengers that will be riding in your
vehicle.
3. Subtract the combined weight of the driver
and passengers from XXX kg or XXX lbs.Label Example
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Service........................................................ 235
Accessories and Modications................... 235
California Proposition 65 Warning.............. 236
Doing Your Own Service Work.................. 236
Adding Equipment to the Outside
of Your Vehicle...................................... 237
Fuel............................................................. 237
Gasoline Octane........................................ 237
Gasoline Specications.............................. 237
California Fuel........................................... 238
Additives................................................... 238
Fuels in Foreign Countries........................ 239
Filling the Tank......................................... 240
Filling a Portable Fuel Container............... 242
Checking Things Under the Hood.............. 242
Hood Release........................................... 243
Engine Compartment Overview.................. 244
Engine Oil................................................. 247
Engine Oil Life System.............................. 252
Engine Air Cleaner/Filter............................ 254
Automatic Transmission Fluid.................... 256
Manual Transmission Fluid........................ 256
Hydraulic Clutch........................................ 256
Engine Coolant.......................................... 257Coolant Surge Tank Pressure Cap............ 260
Engine Overheating................................... 260
Cooling System......................................... 262
Power Steering Fluid ................................. 268
Windshield Washer Fluid........................... 269
Brakes...................................................... 270
Battery...................................................... 273
Jump Starting............................................ 274
Rear Axle.................................................... 279
Bulb Replacement....................................... 280
Halogen Bulbs........................................... 280
Headlamps................................................ 280
Front Turn Signal, Parking and
Fog Lamps............................................ 281
Taillamps, Turn Signal, and Stoplamps...... 281
Back-Up Lamps......................................... 282
License Plate Lamp................................... 282
Replacement Bulbs................................... 283
Windshield Wiper Blade Replacement....... 283
Tires............................................................ 284
Winter Tires.............................................. 285
Tire Sidewall Labeling............................... 286
Tire Terminology and Denitions............... 289
Section 5 Service and Appearance Care
233

Ination - Tire Pressure............................. 292
Tire Inspection and Rotation...................... 293
When It Is Time for New Tires.................. 295
Buying New Tires...................................... 296
Different Size Tires and Wheels................ 297
Uniform Tire Quality Grading..................... 298
Wheel Alignment and Tire Balance............ 299
Wheel Replacement.................................. 299
Tire Chains............................................... 302
If a Tire Goes Flat.................................... 302
Tire Inator Kit.......................................... 303
Appearance Care........................................ 314
Cleaning the Inside of Your Vehicle.......... 314
Fabric/Carpet............................................. 315
Leather...................................................... 316
Instrument Panel, Vinyl, and Other
Plastic Surfaces..................................... 317
Care of Safety Belts.................................. 317
Weatherstrips............................................ 317
Washing Your Vehicle............................... 318
Cleaning Exterior Lamps/Lenses................ 318
Finish Care............................................... 319Windshield and Wiper Blades.................... 320
Convertible Top......................................... 320
Aluminum or Chrome-Plated Wheels......... 321
Tires......................................................... 322
Sheet Metal Damage................................. 322
Finish Damage.......................................... 322
Underbody Maintenance............................ 323
Chemical Paint Spotting............................ 323
Vehicle Care/Appearance Materials............ 324
Vehicle Identication.................................. 325
Vehicle Identication Number (VIN)........... 325
Service Parts Identication Label............... 325
Electrical System........................................ 326
Add-On Electrical Equipment..................... 326
Headlamp Wiring....................................... 326
Power Windows and Other
Power Options....................................... 326
Fuses and Circuit Breakers....................... 326
Floor Console Fuse Block......................... 327
Underhood Fuse Block.............................. 329
Capacities and Specications.................... 332
Section 5 Service and Appearance Care
234

CAUTION: (Continued)

Underinated 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 vehicle’s tires are cold. See
Inflation - Tire Pressure on page 292.
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 the tire’s tread is badly worn, or
if your vehicle’s tires have been
damaged, replace them.Notice:If your vehicle has P245/45R18 size
tires, they are classied as low-prole
tires. Low-prole tires are more susceptible to
damage from road hazards or curb impact
than standard prole tires. Tire and or wheel
assembly damage can occur when coming into
contact with road hazards like, potholes or
sharp edged objects or when sliding into
a curb. Your GM warranty does not cover this
type of damage. Keep tires set to the correct
ination pressure and when possible avoid
contact with curbs, potholes and other
road hazards.
Winter Tires
If your vehicle has P245/45R18 size tires, they are
classied as low-prole performance tires. These
tires are designed for very responsive driving on
wet or dry pavement. If you expect to drive on snow
or ice covered roads often, you may want to get
winter tires for your vehicle. The low-prole
performance tires may not offer the traction you
would like or the same level of performance as
winter tires on snow or ice covered roads.
285

(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 code are 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 298.
(G) Maximum Cold Ination Load Limit:
Maximum load that can be carried and the
maximum pressure needed to support that load.
287

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 292.
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 226.
GAWR FRT:Gross Axle Weight Rating for the
front axle. SeeLoading Your Vehicle on page 226.
289