1999 PONTIAC BONNEVILLE inflation pressure

First Edition for Pontiac Bonneville Owner's Manual ± 1999
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4-30
Loading Your Vehicle
X±04±0017±W
Two labels on your vehicle show how much weight it
may properly carry. The Tire
-Loading Information label
found on the rear edge of 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 all
nonfactory
-installed options.
X±04±0016±W
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 the Gross
Vehicle Weight Rating (GVWR). 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 176 lbs. (80 kg) in
your trunk.

First Edition for Pontiac Bonneville Owner's Manual ± 1999
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5-32
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 perform well at speeds up to 65 mph
(105 km/h) 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.
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.
Don't use your compact spare on other vehicles.
And don't mix your compact spare tire or wheel with
other wheels or tires. They won't fit. Keep your spare
tire and its wheel together.
NOTICE:
Tire chains won't fit your compact spare. Using
them can damage your vehicle and can damage
the chains too. Don't use tire chains on your
compact spare.

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6-45 Inflation -- Tire Pressure
The Tire-Loading Information label, which is on the
rear edge of the driver's door, shows the correct
inflation pressures for your tires when they're cold.
ªColdº means your vehicle has been sitting for at least
three hours or driven no more than 1 mile (1.6 km).
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

Too much heat

Tire overloading

Bad wear

Bad handling

Bad fuel economy.
NOTICE: (Continued)
NOTICE: (Continued)
If your tires have too much air (overinflation),
you can get the following:

Unusual wear

Bad handling

Rough ride

Needless damage from road hazards.
When to Check
Check your tires once a month or more.
Don't forget your compact spare tire. It should be at
60 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 underinflated.
Be sure to put the valve caps back on the valve stems.
They help prevent leaks by keeping out dirt and moisture.

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6-46 Tire Inspection and Rotation
Tires should be rotated every 6,000 to 8,000 miles
(10 000 to 13 000 km). Any time you notice unusual
wear, rotate your tires as soon as possible and check
wheel alignment. Also check for damaged tires or
wheels. See ªWhen It's Time for New Tiresº and
ªWheel Replacementº later in this section for
more information.
The purpose of regular rotation is to achieve more
uniform wear for all tires on the vehicle. The first
rotation is the most important. See ªScheduled
Maintenance Servicesº in the Index for scheduled
rotation intervals.
When rotating your tires, always use the correct rotation
pattern shown here.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 wheelnuts are
properly tightened. See ªWheel Nut Torqueº in
the Index.
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 ªChanging a Flat Tireº in the Index.)

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7-32
Part B: Owner Checks and Services
Listed in this part 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
perform these underhood checks at each fuel fill.
Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary. See ªEngine Oilº in the Index for
further details.
Engine Coolant Level Check
Check the engine coolant level and add DEX
-COOL

coolant mixture if necessary. See ªEngine Coolantº 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 ªWindshield Washer Fluidº in the
Index for further details.
At Least Once a Month
Tire Inflation Check
Make sure tires are inflated to the correct pressures.
See ªTiresº in the Index for further details.
Cassette Deck Service
Clean cassette deck. Cleaning should be done every
50 hours of tape play. See ªAudio Systemsº in the Index
for further details.
Power Antenna Service
Clean power antenna mast. See ªAudio Systemsº in
the Index for further details.

First Edition for Pontiac Bonneville Owner's Manual ± 1999
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9-5
First Gear, Automatic Transaxle 2-27 . . . . . . . . . . . . . . . . . . .
Flashers, Hazard Warning 5-2 . . . . . . . . . . . . . . . . . . . . . . . . .
Flash-to-Pass Feature 2-38 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flat Tire, Changing 5-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid Capacities 6-69 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluids and Lubricants 7-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fog Lamps 2-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign Countries, Fuel 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . .
French Language Manual ii. . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel 6
-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Canada 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door Lock 6-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door Release 6-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filling a Portable Container 6-9 . . . . . . . . . . . . . . . . . . . . . .
Filling Your Tank 6-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gage 2-75 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
In Foreign Countries 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuses and Circuit Breakers 6-62 . . . . . . . . . . . . . . . . . . . . . . .
Gages
Boost 2-77 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Coolant Temperature 2-69 . . . . . . . . . . . . . . . . . . . .
Engine Oil Pressure 2-73 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel 2-75 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Speedometer 2-63 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tachometer 2-64 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GAWR 4-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gear Positions, Automatic Transaxle 2-24 . . . . . . . . . . . . . . . .
Glove Box 2-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graphic Equalizer 3-17, 3-23 . . . . . . . . . . . . . . . . . . . . . . . . .
Gross Axle Weight Rating 4-30 . . . . . . . . . . . . . . . . . . . . . . . .
Gross Vehicle Weight Rating 4-30 . . . . . . . . . . . . . . . . . . . . . .
Guide en Fran†ais ii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GVWR 4
-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Halogen Bulbs 6-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hazard Warning Flashers 5-2 . . . . . . . . . . . . . . . . . . . . . . . . . .
Head Restraints 1-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlamps 2-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bulb Replacement 6-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High/Low Beam Changer 2-38 . . . . . . . . . . . . . . . . . . . . . .
On Reminder 2-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring 6-61 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Head-Up Display 2-77 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hearing Impaired, Customer Assistance 8-5 . . . . . . . . . . . . . .
Heating 3-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High-Beam Headlamps 2-38 . . . . . . . . . . . . . . . . . . . . . . . . . .
Highway Hypnosis 4-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hill and Mountain Roads 4-23 . . . . . . . . . . . . . . . . . . . . . . . . .
Hitches, Trailer 4-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hood
Checking Things Under 6
-9 . . . . . . . . . . . . . . . . . . . . . . . . .
Release 6-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hood Ajar Message 2-81 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horn 2-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HUD 2-77 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hydroplaning 4-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Positions 2-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Transaxle Lock Check 7-35 . . . . . . . . . . . . . . . . . . . .
Illuminated Entry 2-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inadvertent Load Protection 2-48 . . . . . . . . . . . . . . . . . . . . . . .
Inflation, Tire 6-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inflator, Air 2-55 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inside Day/Night Rearview Mirror 2-48 . . . . . . . . . . . . . . . . .

First Edition for Pontiac Bonneville Owner's Manual ± 1999
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9-11
Tire Chains 6-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire Loading 4-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire-Loading Information Label 4-30 . . . . . . . . . . . . . . . . . . .
Tires 6-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alignment and Balance 6-50 . . . . . . . . . . . . . . . . . . . . . . . .
Buying New 6-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chains 6-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing a Flat 5-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning 6-57 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compact Spare 5-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inflation 6-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inflation Check 7-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Rotation 6-46 . . . . . . . . . . . . . . . . . . . . . . . .
Loading 4-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pressure 6-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Temperature 6-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Traction 6-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Treadwear 6-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Uniform Quality Grading 6-48 . . . . . . . . . . . . . . . . . . . . . . .
Wear Indicators 6-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheel Replacement 6-50 . . . . . . . . . . . . . . . . . . . . . . . . . . .
When It's Time for New 6-47 . . . . . . . . . . . . . . . . . . . . . . .
Top Strap 1-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Torque Lock 2-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Torque, Wheel Nut 5-28, 6-69 . . . . . . . . . . . . . . . . . . . . . . . . .
Towing
Recreational Vehicle 4
-29 . . . . . . . . . . . . . . . . . . . . . . . . . .
Trailer 4-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Your Vehicle 5-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Traction
Control System Warning Light 2
-68, 4-9 . . . . . . . . . . . . . .
Off Warning Light 2-68, 4-9 . . . . . . . . . . . . . . . . . . . . . . . .
Traction Control System 4-9 . . . . . . . . . . . . . . . . . . . . . . . . . . Trailer
Brakes 4
-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driving on Grades 4-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driving with 4-36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Cooling When Towing 4-38 . . . . . . . . . . . . . . . . . . .
Hitches 4-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance When Towing 4-38 . . . . . . . . . . . . . . . . . . . . .
Parking on Hills 4-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Chains 4-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tongue Weight 4-34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total Weight on Tires 4-35 . . . . . . . . . . . . . . . . . . . . . . . . . .
Towing 4-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turn Signals 4-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Weight 4-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transaxle Fluid, Automatic 6-20 . . . . . . . . . . . . . . . . . . . . . . .
Transmitters, Matching to Your Vehicle 2-12 . . . . . . . . . . . . .
Transmitters, Remote Keyless Entry 2-10 . . . . . . . . . . . . . . . .
Transportation, Courtesy 8-10 . . . . . . . . . . . . . . . . . . . . . . . . .
Trip Odometer 2-63 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trunk
Ajar Message 2
-81 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lock 2-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Release Lockout, Remote 2-15 . . . . . . . . . . . . . . . . . . . . . .
Release, Remote 2-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Security Override 2-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TTY Users 8-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turn Signal
Lane Change Signals 2
-37 . . . . . . . . . . . . . . . . . . . . . . . . . .
On Chime 2-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
On Message 2-81 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Multifunction Lever 2-36 . . . . . . . . . . . . . . . . . . . . . . . . . . .
When Towing a Trailer 4-37 . . . . . . . . . . . . . . . . . . . . . . . .
Twilight Sentinel
2-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .