2003 PONTIAC GRAND PRIX fuel pressure

Section 3 Instrument Panel
Instrument Panel Overview .......................... -3-2
Hazard Warning Flashers
-3-3
Other Warning Devices ................................... 3.4
Horn
............................................................. 3.4
Tilt Wheel
..................................................... 3.4
Turn Signal/Multifunction Lever
......................... 3.5
Exterior Lamps
............................................. 3.10
Interior Lamps
.............................................. 3.12
Head-Up Display (HUD)
................................. 3-15
Accessory Power Outlets
............................... 3.18
Auxiliary Power Connection (Power Drop)
......... 3.19
Ashtrays and Cigarette Lighter
........................ 3-19
Climate Controls ............................................ 3.20
Dual Climate Control System
.......................... 3.20
Outlet Adjustment
......................................... 3.22
Warning Lights, Gages and Indicators ............. 3.23
Instrument Panel Cluster
................................ 3.24
Speedometer and Odometer
........................... 3.25
Tachometer
................................................. 3.25
Safety Belt Reminder Light
............................. 3.26
Air Bag Readiness Light
................................ 3-26
Charging System Light
.................................. 3.27
Brake System Warning Light
......................... -3-28
Anti-Lock Brake System Warning Light
............. 3.29
Traction Control System (TCS) Warning Light
...... 3.29
Enhanced Traction System Warning Light
........ -3-30
.. ...............................
Low Traction Light ....................................... -3-30
Engine Coolant Temperature Gage
.................. 3-31
Malfunction Indicator Lamp
............................ -3-32
Oil Pressure Light
........................................ -3-35
Security Light
............................................... 3-36
Fuel Gage
................................................... 3-37
Low Fuel Warning Light
................................. 3-37
Driver Information Center (DE) ....................... 3-38
Trip Computer ................................... ..... 3-40
Control Buttons
............................................ 3-42
Functions
.................................................... 3-42
Audio System(s) ............................................. 3-44
Setting the Time
........................................... 3-44
Radio with Cassette
...................................... 3-45
Radio with CD (Base Level)
........................... 3-48
Radio with CD
(Up Level) .............................. 3-51
Theft-Deterrent Feature
.................................. 3-54
Engine
Coolant Temperature 'Warning Light
...... 3.31
Low Oil Level Light ....................................... 3-36
Audio Steering Wheel Controls
....................... 3-56
Understanding Radio Reception
...................... 3-57
Care of Your Cassette Tape Player
................. 3-58
Care
of Your CDs ......................................... 3-59
Care of Your CD Player
................................ 3-59
Backglass Antenna
....................................... 3-59
3-
1

Once you are moving on the freeway, make certain you
allow a reasonable following distance.
Expect to move slightly slower at night.
When you want to leave the freeway, move to the
proper lane well in advance.
If you miss your exit, do
not, under any circumstances, stop and back up. Drive
on to the next exit.
The exit ramp can be curved, sometimes quite sharply.
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.
Before Leaving on a Long Trip
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 and maintained, it’s ready to
go. If it
needs service, have it done before starting out.
Of course, you’ll find experienced and able service
experts in dealerships all across North America. They’ll
be ready and willing to help
if you need it.
Here are some things you can check before a trip:
Windshield Washer Fluid:
Is the reservior full?
Are all windows clean inside and outside?
Wiper Blades: Are they in good 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?
4-24

Loading Your Vehicle
.
1 TIRE-LOADING INFORMATION
1 OCCUPANTS VEHiCLE 6
OT, ADD 28KPA(4PSI)
FOR MORE INFORMATION
Two labels on your vehicle show how much weight it
may properly carry. The Tire-Loading Information label is
on the inside of the trunk lid. The label tells you the
proper size, speed rating and recommended inflation
pressures for the tires on your vehicle. It also give you
important information about the number of people
that can be in your vehicle and the total weight you can
carry. This weight is called the vehicle capacity
weight and includes the weigh of all occupants, cargo
and all non-factory installed options. 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.
4-35

Section 5 Service and Appearance Care
Service ............................................................ 5.3
Doing Your
Owr? Service Work ......................... 5-4
Adding Equipment to the Outside of
Your Vehicle
.............................................. 5-4
Fuel ................................................................ 5-5
Gasoline Octane
............................................ 5-5
Gasoline Specifications
.................................... 5-5
California Fuel
............................................... 5-6
Additives
....................................................... 5-6
Fuels in Foreign Countries
............................... 5-7
Filling Your Tank
............................................ 5-7
Filling a Portable Fuel Container
....................... 5-9
Checking Things Under the Hood .................... 5-10
Hood Release
.............................................. 5-10
Engine Compartment Overview
....................... 5-12
Engine Oil
................................................... 5-18
Supercharger Oil
.......................................... 5-24
Engine Air CleanedFilter
................................ 5-25
Automatic Transaxle Fluid
.............................. 5-27
Engine Coolant
............................................. 5-30
Radiator Pressure Cap
.................................. 5-33
Cooling System
........................................... -5-36
Power Steering Fluid
..................................... 5-46
Windshield Washer Fluid
................................ 5-48
Engine Overheating
....................................... 5-33 Brakes
........................................................ 5.49
Battery
........................................................ 5.52
Jump Starting
............................................... 5-53
Bulb Replacement .......................................... 5-60
Halogen Bulbs
.............................................. 5-60
Headlamps
.................................................. 5-60
Front Turn Signal and Sidemarker Lamps
........ 5-62
Center High-Mounted Stoplamp (CHMSL)
......... 5-63
Taillamps, Sidemarker and Back-up Lamps
...... 5-64
Replacement Bulbs
....................................... 5-66
Windshield Wiper Blade Replacement .............. 5-67
Tires ............................................................. -5-68
Inflation
-- Tire Pressure ................................ 5-68
Tire Inspection and Rotation
........................... 5-69
When It
Is Time for New Tires ....................... 5-70
Buying New Tires
......................................... 5-71
Uniform Tire Quality Grading
.......................... 5-72
Wheel Replacement
...................................... 5-73
Headlamp Aiming ........................................... 5-59
Wheel Alignment and Tire Balance
.................. 5-73
Tire Chains
.................................................. 5-75
If a Tire Goes Flat ........................................ 5-76
Changing a Flat Tire
..................................... 5-76
Compact Spare Tire
...................................... 5-87
5- 1

Bad wear
0 Bad handling
Bad fuel economy
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.
Tire Inspection and Rotation
Tires should be rotated every 7,500 miles (1 2 500 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 When It Is Time
for New Tires on page
5-70 and Wheel Replacement
on page 5-73 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 “Part A: Scheduled
Maintenance Services,’’ in Section
6, for scheduled
rotation intervals.
1
When rotating your tires, always use the correct rotation
pattern shown here.
5-69

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 bevel Check
Check the engine oil level and add the proper oil if
necessary. See Engine Oil on page 5-18 for further
details.
Engine Coolant Level Check
Check the engine coolant level and add DEX-COOL@
coolant mixture
if necessary. See Engine Coolant
on page 5-30 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 on page 5-48 for
further details.
At Least Once a Month
Tire Inflation Check
Make sure tries are inflated to the correct pressures.
Don’t forget to check your spare tire. See Tires
on
page 5-68 for further details.
Cassette Tape Player Service
Clean cassette tape player. Cleaning should be done
every
50 hours of tape play. See Audio System(s)
on page 3-44 for further details.
6-9

Part C: Periodic Maintenance
Inspections
Listed in this part are inspections and services which
should be performed at least twice a year (for instance,
each spring and fall).
You should let your dealer’s
service department
or other qualified service center do
these
jobs. Make sure any necessary repairs are
completed at once.
Proper procedures to perform these services may be
found in a service manual. See Service Publications
Ordering lnformation
on page 7- 10.
Steering, Suspension and Front
Drive Axle Boot and Seal Inspection
Inspect the front and rear suspension and steering
system for damaged, loose
or missing parts, signs of
wear or lack of lubrication. Inspect the power steering
lines and hoses for proper hook-up, binding, leaks,
cracks, chafing, etc. Clean and then inspect the drive
axle boot seals for damage, tears or leakage. Replace
seals
if necessary.
Exhaust System Inspection
Inspect the complete exhaust system. Inspect the body
near the exhaust system. Look for broken, damaged,
missing or out-of-position parts as well as open seams,
holes, loose connections or other conditions which
could cause a heat build-up in the floor pan or could let
exhaust fumes into the vehicle. See Engine Exhaust
on page
2-3 1.
Fuel System Inspection
Inspect the complete fuel system for damage or leaks.
Engine Cooling System Inspection
Inspect the hoses and have them replaced if they
are cracked, swollen or deteriorated. Inspect all pipes,
fittings and clamps; replace as needed. Clean the
outside of the radiator and air conditioning condenser.
To help ensure proper operation, a pressure test of
the cooling system and pressure cap is recommended
at least once a year.
6-1 3

If No Steam is Coming From Your Engine .......... 5-35
If Steam
Is Coming From Your Engine ............... 5-34
If the HUD Image
Is Not Clear ......................... 3-18
If the Light
Is Flashing ..................................... 3-33
If the Light
Is On Steady ................................. 3-33
If You Are Stuck in Sand, Mud, Ice or Snow
....... 4-32
If You Can’t See the HUD Image When the
Ignition
Is On .............................................. 3-18
If You
Do Decide To Pull A Trailer ..................... 4-38
Ignition Positions
............................................. 2-1 9
Ignition Transaxle Lock Check
.......................... 6-12
Infants and Young Children, Restraints
............... 1-32
Inflation
-- Tire Pressure ............................... 5-68
Inspection Brake System
........................... ........... 6-14
Engine Cooling System
................................ 6-13
Exhaust System
.......................................... 6-13
Fuel System
............................................... 6-13
Part C
- Periodic Maintenance ....................... 6-13
Steering, Suspension and Front Drive Axle
Boot and Seal
......................................... 6-1 3
Throttle System
........................................... 6-14
Cluster
....................................................... 3-24
Overview
..................................................... 3-2
Instrument Panel Brightness
............................. 3-1 2
If
You’re Caught in a Blizzard
........................... 4-29
Instrument Panel Instrument Panel
Fuse Block
........................ 5-98
Interior Plastic Components .............................. 5-90
Interior
Lamps
................................................ 3-12
Jump Starting
................................................. 5-53
Key Lock Cylinders Service .............................. 6-10
Keyless Entry System
....................................... 2-4
Keys
............................................................... 2-3
L
Lamps Exterior
............................................... 3-10
Interior
....................................................... 3-12
Lap Belt
........................................................ 1-21
Lap-Shoulder Belt
................................... 1.12. 1-23
Last Door Closed Locking
.......................... 2.9. 2-47
LATCH System Child Restraints
........................................... 1-41
Securing a Child Restraint Designed for
the LATCH System
................................... 1-43
Leather
......................................................... 5-90
Leaving Your Vehicle
....................................... 2-11
7