2003 BUICK PARK AVENUE power steering

Notice:If your key seems stuck in LOCK and you
can't turn it, be sure you are using the correct key; if
so, is it all the way in? If it is, then turn the steering
wheel left and right while you turn the key hard.
Turn the key only with your hand. Using a tool
to force it could break the key or the ignition switch.
If none of these works, then your vehicle needs
service.
C (OFF):This position lets you turn off the engine but
still turn the steering wheel. It doesn't lock the
steering wheel like LOCK and it doesn't send any power
to the accessories. The instrument panel cluster will
remain powered in OFF to illuminate the gear shift
indicator. The cluster will also activate the parking brake
light when the parking brake is set. Use OFF if you
must have your vehicle in motion while the engine is not
running.
D (RUN):This is the position that the switch returns to
after you start your engine and release the ignition
key. This is the position for driving. Even when
the engine is not running, you can use RUN to operate
your electrical accessories and to display some
instrument panel warning lights.
E (START):This position starts your engine. When the
engine starts, release the ignition key. The switch
will return to RUN for normal driving.Key Reminder Warning
If you leave your key in the ignition, with the engine off,
you will hear a warning chime when you open the
driver's door.
Retained Accessory Power (RAP)
After you turn the ignition off and remove the key, you
will still have power to such accessories as the
radio, sunroof (option) and power windows for up to
10 minutes. Power is stopped if you open a door.
Starting Your Engine
Move your shift lever to PARK (P) or NEUTRAL (N).
Your engine won't start in any other position ± that's a
safety feature. To restart when you're already moving,
use NEUTRAL (N) only.
Notice:Don't try to shift to PARK (P) if your
vehicle is moving. If you do, you could damage the
transaxle. Shift to PARK (P) only when your
vehicle is stopped.
1. With your foot off the accelerator pedal, turn your
ignition key to START. When the engine starts, let
go of the key. The idle speed will go down as
your engine gets warm.
2-22

Instrument Panel Overview...............................3-2
Hazard Warning Flashers................................3-4
Other Warning Devices...................................3-4
Horn.............................................................3-5
Tilt Wheel.....................................................3-5
Turn Signal/Multifunction Lever.........................3-5
Exterior Lamps.............................................3-12
Interior Lamps..............................................3-14
Head-Up Display (HUD).................................3-17
Ultrasonic Rear Parking Assist (URPA)............3-19
Accessory Power Outlets...............................3-21
Ashtrays and Cigarette Lighter........................3-22
Climate Controls............................................3-22
Dual Automatic Climate Control System...........3-22
Outlet Adjustment.........................................3-26
Passenger Compartment Air Filter...................3-27
Steering Wheel Climate Controls.....................3-28
Climate Controls Personalization.....................3-28
Warning Lights, Gages and Indicators.............3-29
Instrument Panel Cluster................................3-30
Speedometer and Odometer...........................3-32
Tachometer.................................................3-32
Safety Belt Reminder Light.............................3-33
Air Bag Readiness Light................................3-33
Battery Warning Light....................................3-34
Brake System Warning Light..........................3-34Anti-Lock Brake System Warning Light.............3-36
Traction Control System (TCS) Warning Light . . .3-36
Engine Coolant Temperature Gage..................3-37
Malfunction Indicator Lamp.............................3-37
Oil Pressure Light.........................................3-40
Security Light...............................................3-41
Cruise Control Light......................................3-41
Service Vehicle Soon Light............................3-41
Fuel Gage...................................................3-42
Driver Information Center (DIC).......................3-43
DIC Controls and Displays.............................3-43
DIC Warnings and Messages.........................3-45
DIC Vehicle Personalization............................3-46
Audio System(s).............................................3-51
Setting the Time...........................................3-52
Radio with Cassette......................................3-52
Radio with Cassette and CD..........................3-56
Trunk-Mounted CD Changer...........................3-62
Personal Choice Radio Controls......................3-65
Theft-Deterrent Feature..................................3-66
Audio Steering Wheel Controls.......................3-68
Understanding Radio Reception......................3-68
Care of Your Cassette Tape Player.................3-69
Care of Your CDs.........................................3-70
Care of Your CD Player................................3-70
Heated Backlite Antenna................................3-70
Section 3 Instrument Panel
3-1

Audio Steering Wheel Controls
If your vehicle has this feature, you can control certain
radio functions using the buttons on your steering
wheel.
wVOL (Volume)x:Press the up or the down arrow
to increase or to decrease volume.
wSEEKx:Press the up arrow to seek to the next
station and the down arrow to seek to the previous
station. When playing a cassette tape or a compact disc,
press the up arrow to hear the next selection.AM/FM:Press this button to choose AM, FM1 or FM2.
SCAN:Press this button to scan your radio preset
stations. The radio will scan to the ®rst preset station
stored on your pushbuttons, play for a few seconds, then
go on to the next preset station. The radio will scan
preset stations with a strong signal only. Press
this button again to stop scanning.
Understanding Radio Reception
AM
The range for most AM stations is greater than for FM,
especially at night. The longer range, however, can
cause stations to interfere with each other. AM can pick
up noise from things like storms and power lines. Try
reducing the treble to reduce this noise if you ever get it.
FM
FM stereo will give you the best sound, but FM signals
will reach only about 10 to 40 miles (16 to 65 km).
Tall buildings or hills can interfere with FM signals,
causing the sound to come and go.
3-68

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. 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.Remember: Anti-lock doesn't change the time you need
to get your foot up to the brake pedal or always
decrease stopping distance. If you get too close to the
vehicle in front of you, you won't have time to apply
your brakes if that vehicle suddenly slows or stops.
Always leave enough room up ahead to stop, even
though you have anti-lock brakes.
Using Anti-Lock
Don't pump the brakes. Just hold the brake pedal down
®rmly and let anti-lock work for you. You may feel a
slight brake pedal pulsation or notice some noise, but
this is normal.
Braking in Emergencies
With anti-lock, you can steer and brake at the same
time. In many emergencies, steering can help you more
than even the very best braking.
Traction Control System (TCS)
Your vehicle may have a traction control system that
limits wheel spin. This is especially useful in slippery
road conditions. The system operates only if it senses
that one or both of the front wheels are spinning or
beginning to lose traction. When this happens,
the system works the front brakes and reduces engine
power to limit wheel spin.
You may feel or hear the system working, but this is
normal.
4-8

Steering
Power Steering
If you lose power steering assist because the engine
stops or the system is not functioning, you can steer but
it will take much more effort.
Magnetic Speed Variable Assist
Steering
Your vehicle may be equipped with this steering system
that continually adjusts the effort you feel when
steering at all vehicle speeds. It provides ease when
parking yet a ®rm, solid feel at highway speeds.
Steering Tips
Driving on Curves
It's important to take curves at a reasonable speed.
A lot of the ªdriver lost controlº accidents mentioned on
the news happen on curves. Here's why:
Experienced driver or beginner, each of us is subject to
the same laws of physics when driving on curves.
The traction of the tires against the road surface makes
it possible for the vehicle to change its path when
you turn the front wheels. If there's no traction, inertiawill keep the vehicle going in the same direction. If
you've ever tried to steer a vehicle on wet ice, you'll
understand this.
The traction you can get in a curve depends on the
condition of your tires and the road surface, the angle at
which the curve is banked, and your speed. While
you're in a curve, speed is the one factor you can
control.
Suppose you're steering through a sharp curve.
Then you suddenly accelerate. Both control
systems Ð steering and acceleration Ð have to do their
work where the tires meet the road. Adding the
sudden acceleration can demand too much of those
places. You can lose control. See
Traction Control
System (TCS) on page 4-8.
What should you do if this ever happens? Ease up on
the accelerator pedal, steer the vehicle the way you
want it to go, and slow down.
If you have Stabilitrak
ž, you may see the STABILITY
SYSTEM ACTIVE message on the Driver Information
Center. See ªStability System Active Messageº
under
DIC Warnings and Messages on page 3-45.
Speed limit signs near curves warn that you should
adjust your speed. Of course, the posted speeds
are based on good weather and road conditions. Under
less favorable conditions you'll want to go slower.
4-10

Service............................................................5-3
Doing Your Own Service Work.........................5-3
Adding Equipment to the Outside of
Your Vehicle..............................................5-4
Fuel................................................................5-4
Gasoline Octane............................................5-4
Gasoline Speci®cations....................................5-5
California Fuel...............................................5-5
Additives.......................................................5-6
Fuels in Foreign Countries...............................5-6
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...................................................5-14
Supercharger Oil..........................................5-19
Engine Air Cleaner/Filter................................5-20
Automatic Transaxle Fluid..............................5-22
Engine Coolant.............................................5-24
Radiator Pressure Cap..................................5-27
Engine Overheating.......................................5-27
Cooling System............................................5-30
Power Steering Fluid.....................................5-38Windshield Washer Fluid................................5-38
Brakes........................................................5-40
Battery........................................................5-42
Jump Starting...............................................5-43
Headlamp Aiming...........................................5-47
Bulb Replacement..........................................5-49
Halogen Bulbs..............................................5-49
Headlamps..................................................5-50
Front Turn Signal Lamps...............................5-52
Rear Turn Signal, Stoplamps and
Back-Up Lamps........................................5-52
Rear Quarter Panel Turn Signal and
Stoplamps................................................5-56
Replacement Bulbs.......................................5-57
Windshield Wiper Blade Replacement..............5-58
Tires..............................................................5-59
In¯ation Ð Tire Pressure...............................5-59
Check Tire Pressure System..........................5-60
Tire Inspection and Rotation...........................5-62
When It Is Time for New Tires.......................5-63
Buying New Tires.........................................5-64
Uniform Tire Quality Grading..........................5-65
Wheel Alignment and Tire Balance..................5-66
Wheel Replacement......................................5-66
Section 5 Service and Appearance Care
5-1

Power Steering Fluid
When to Check Power Steering Fluid
It is not necessary to regularly check power steering ¯uid
unless you suspect there is a leak in the system or
you hear an unusual noise. A ¯uid loss in this system
could indicate a problem. Have the system inspected
and repaired. See
Engine Compartment Overview
on page 5-12for reservoir location.
How to Check Power Steering Fluid
Turn the key off, let the engine compartment cool down,
wipe the cap and the top of the reservoir clean, then
unscrew the cap and wipe the dipstick with a clean rag.
Replace the cap and completely tighten it. Then
remove the cap again and look at the ¯uid level on the
dipstick.
The level should be at the FULL COLD mark. If
necessary, add only enough ¯uid to bring the level up to
the mark.
What to Use
To determine what kind of ¯uid to use, seePart D:
Recommended Fluids and Lubricants on page 6-25.
Always use the proper ¯uid. Failure to use the proper
¯uid can cause leaks and damage hoses and seals.
Windshield Washer Fluid
What to Use
When you need windshield washer ¯uid, be sure to read
the manufacturer's instructions before use. If you will
be operating your vehicle in an area where the
temperature may fall below freezing, use a ¯uid that has
sufficient protection against freezing. See
Engine
Compartment Overview on page 5-12for reservoir
location.
5-38

Part C: Periodic
MaintenanceInspections
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 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. SeeService Publications
Ordering Information on page 7-9.
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, cha®ng, 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 ¯oor pan or could let
exhaust fumes into the vehicle. See
Engine Exhaust
on page 2-31.
Fuel System Inspection
Inspect the complete fuel system for damage or leaks.
6-23