2003 BUICK PARK AVENUE Engine

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

Engine Cooling System Inspection
Inspect the hoses and have them replaced if they
are cracked, swollen or deteriorated. Inspect all pipes,
®ttings 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.
Throttle System Inspection
Inspect the throttle system for interference or binding,
and for damaged or missing parts. Replace parts
as needed. Replace any components that have high
effort or excessive wear. Do not lubricate accelerator
and cruise control cables.
Brake System Inspection
Inspect the complete system. Inspect brake lines and
hoses for proper hook-up, binding, leaks, cracks,
cha®ng, etc. Inspect disc brake pads for wear and rotors
for surface condition. Inspect other brake parts,
including calipers, parking brake, etc. Check parking
brake adjustment. You may need to have your brakes
inspected more often if your driving habits or
conditions result in frequent braking.
6-24

Part D: Recommended Fluids and
Lubricants
Fluids and lubricants identi®ed below by name, part
number or speci®cation may be obtained from your
dealer.
Usage Fluid/Lubricant
Engine OilEngine oil with the American
Petroleum Institute Certi®ed for
Gasoline Engines starburst symbol
of the proper viscosity. To determine
the preferred viscosity for your
vehicle's engine, see
Engine Oil on
page 5-14.
Engine Coolant50/50 mixture of clean, drinkable
water and use only
DEX-COOL
žCoolant. SeeEngine
Coolant on page 5-24.
Hydraulic Brake
SystemDelco Supreme 11 Brake Fluid or
equivalent DOT-3 brake ¯uid.
Windshield
Washer SolventGM Optikleen
žWasher Solvent or
equivalent.
Parking Brake
Cable GuidesChassis Lubricant (GM Part No.
U.S. 12377985, in Canada
88901242, or equivalent) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Power Steering
SystemGM Power Steering Fluid (GM Part
No. U.S. 1052884, in Canada
993294, or equivalent).
Usage Fluid/Lubricant
Automatic
TransaxleDEXRONž-III Automatic
Transmission Fluid.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474, or equivalent).
SuperchargerSupercharger Oil (GM Part No. U.S.
12345982, in Canada 10953513).
See
Supercharger Oil on page 5-19.
Hood Latch
Assembly,
Secondary
Latch, Pivots,
Spring Anchor
and Release
PawlLubriplate Lubricant Aerosol (GM
Part No. U.S. 12346293, in Canada
992723, or equivalent) or lubricant
meeting requirements of NLGI #2,
Category LB or GC-LB.
Hood and Door
HingesMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474, or equivalent).
Fuel Door,
Glove Box
Door, Console
Door and Rear
Compartment
Lid HingesMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474, or equivalent).
Weatherstrip
ConditioningDielectric Silicone Grease (GM Part
No. U.S. 12345579, in Canada
10953014, or equivalent).
6-25

To contact NHTSA, you may either call the Auto Safety
Hotline toll-free at 1-800-424-9393 (or 366-0123 in
the Washington, D.C. area) or write to:
NHTSA, U.S. Department of Transportation
Washington, D.C. 20590
You can also obtain other information about motor
vehicle safety from the hotline.
Reporting Safety Defects to the
Canadian Government
If you live in Canada, and you believe that your vehicle
has a safety defect, you should immediately notify
Transport Canada, in addition to notifying General
Motors of Canada Limited. You may write to:
Transport Canada
330 Sparks Street
Tower C
Ottawa, Ontario K1A 0N5
Reporting Safety Defects to General
Motors
In addition to notifying NHTSA (or Transport Canada) in
a situation like this, we certainly hope you'll notify us.
Please call us at 1-800-521-7300, or write:
Buick Customer Assistance Center
P.O. Box 33136
Detroit, MI 48232-5136
In Canada, please call us at 1-800-263-3777 (English)
or 1-800-263-7854 (French). Or, write:
General Motors of Canada Limited
Customer Communication Centre, 163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
Service Publications Ordering
Information
Service Manuals
Service Manuals have the diagnosis and repair
information on engines, transmission, axle, suspension,
brakes, electrical, steering, body, etc.
RETAIL SELL PRICE: $120.00
7-9

A
Accessory Power Outlets.................................3-21
Activating the Theft-Deterrent Feature................3-66
Adding Washer Fluid.......................................5-39
Additional Program Information........................... 7-8
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment............................5-86
Adjusting the Speakers (Balance/Fade)......3-54, 3-58
Air Bag Systems.............................................1-48
How Does an Air Bag Restrain?....................1-54
Servicing Your Air Bag-Equipped Vehicle.........1-56
What Makes an Air Bag In¯ate?....................1-54
What Will You See After an
Air Bag In¯ates?......................................1-54
When Should an Air Bag In¯ate?...................1-53
Where Are the Air Bags?..............................1-51
Air Bag .........................................................3-33
Readiness Light..........................................3-33
Air Cleaner/Filter, Engine.................................5-20
AM ...............................................................3-68
Antenna, Heated Backlite.................................3-70
Anti-lock Brake System (ABS)............................ 4-7
Anti-Lock Brake, System Warning Light..............3-36
Appearance Care............................................5-78
Care of Safety Belts....................................5-81
Chemical Paint Spotting...............................5-84
Cleaning the Inside of Your Vehicle................5-79
Cleaning the Outside of Your Vehicle..............5-82
Finish Damage............................................5-84Appearance Care (cont.)
Sheet Metal Damage...................................5-83
Underbody Maintenance...............................5-84
Vehicle Care/Appearance Materials................5-84
Weatherstrips..............................................5-81
Ashtrays........................................................3-22
Assist Handles...............................................2-44
Audio System(s).............................................3-51
Audio Steering Wheel Controls......................3-68
Care of Your Cassette Tape Player................3-69
Care of Your CD Player...............................3-70
Care of Your CDs........................................3-70
Heated Backlite Antenna...............................3-70
Personal Choice Radio Controls....................3-65
Radio with Cassette and CD.........................3-56
Radio with Cassette.....................................3-52
Setting the Time..........................................3-52
Theft-Deterrent Feature................................3-66
Trunk-Mounted CD Changer..........................3-62
Understanding Radio Reception.....................3-68
Automatic Level Control...................................4-32
Automatic Operation........................................3-23
Automatic Transaxle Check..............................6-20
Automatic Transaxle Shift Lock Control
System Check.............................................6-21
Automatic Transaxle........................................5-22
Fluid..........................................................5-22
Operation...................................................2-24
Auxiliary Instrument Panel Fuse Block...............5-89
1

Chains, Tires..................................................5-68
Checking Coolant............................................5-26
Checking Engine Oil........................................5-14
Checking Things Under the Hood......................5-10
Checking Your Restraint Systems......................1-56
Check...........................................................3-37
Engine Light...............................................3-37
Tire Pressure System...................................5-60
Chemical Paint Spotting...................................5-84
Child Restraints..............................................1-33
Child Restraint Systems...............................1-33
Infants and Young Children...........................1-29
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-39
Older Children.............................................1-27
Securing a Child Restraint Designed for
the LATCH System...................................1-41
Securing a Child Restraint in a Center
Rear Seat Position...................................1-44
Securing a Child Restraint in a Rear
Outside Seat Position...............................1-42
Securing a Child Restraint in the Right
Front Seat Position...................................1-46
Top Strap Anchor Location............................1-39
Top Strap...................................................1-37
Where to Put the Restraint...........................1-36Cigarette Lighter.............................................3-22
Cleaning Aluminum or Chrome-Plated Wheels.....5-83
Cleaning Exterior Lamps/Lenses.......................5-82
Cleaning Fabric/Carpet....................................5-79
Cleaning Glass Surfaces..................................5-81
Cleaning Interior Plastic Components.................5-80
Cleaning Leather............................................5-80
Cleaning the Speaker Covers...........................5-81
Cleaning the Top of the
Instrument Panel.........................................5-80
Cleaning Tires................................................5-83
Cleaning Vinyl................................................5-80
Cleaning Windshield and Wiper Blades..............5-83
Cleaning........................................................5-79
Inside of Your Vehicle..................................5-79
Outside of Your Vehicle................................5-82
Underbody Maintenance...............................5-84
Weatherstrips..............................................5-81
Climate Control System...................................3-27
Air Filter, Passenger Compartment.................3-27
Climate Controls Personalization....................3-28
Dual Automatic............................................3-22
Outlet Adjustment........................................3-26
Steering Wheel Controls...............................3-28
Compact Disc Changer Errors..........................3-65
Compact Disc Messages..................................3-62
3

Compact Spare Tire........................................5-77
Compass Calibration.......................................2-34
Compass Operation.........................................2-34
Compass Variance..........................................2-35
Content Theft-Deferrent....................................2-17
Control of a Vehicle.......................................... 4-5
Convenience Net............................................2-45
Coolant.........................................................3-37
Engine Temperature Gage............................3-37
Heater, Engine............................................2-23
Cooling System..............................................5-30
Cornering Lamps............................................3-13
Courtesy Lamps.............................................3-14
Cruise Control Light........................................3-41
Cruise Control.................................................. 3-9
Current and Past Model Order Forms................7-10
Customer Assistance Information........................ 7-7
Courtesy Transportation.................................. 7-7
Customer Assistance for Text Telephone
(TTY) Users.............................................. 7-4
Customer Assistance Offices........................... 7-4
Customer Satisfaction Procedure..................... 7-2
GM Mobility Program for Persons with
Disabilities................................................ 7-5
Reporting Safety Defects to General Motors...... 7-9
Reporting Safety Defects to the Canadian
Government.............................................. 7-9Customer Assistance Information (cont.)
Reporting Safety Defects to the United
States Government.................................... 7-8
Roadside Assistance Program......................... 7-5
Service Publications Ordering Information......... 7-9
Customizing Your Automatic Door
Locks Feature.............................................2-11
D
Daytime Running Lamps..................................3-13
Defensive Driving............................................. 4-2
Defogging and Defrosting.................................3-25
Delayed Entry Lighting.....................................3-15
Delayed Exit Lighting.......................................3-15
Delayed Locking.....................................2-10, 3-49
Dinghy Towing................................................4-29
Disabling the Theft-Deterrent Feature.................3-67
Doing Your Own Service Work........................... 5-3
Dolly Towing..................................................4-30
Door............................................................... 2-9
Central Door Unlocking System....................... 2-9
Delayed Locking..........................................2-10
Door Ajar Reminder.....................................2-10
Locks.......................................................... 2-9
Power Door Locks.......................................2-10
Programmable Automatic Door Locks.............2-11
Rear Door Security Locks.............................2-12
4

Driver Information Center (DIC).........................3-43
DIC Controls and Displays............................3-43
DIC Vehicle Personalization..........................3-46
DIC Warnings and Messages........................3-45
Driver............................................................1-12
Position, Safety Belt.....................................1-12
Driving On Grades..........................................4-37
Driving on Snow or Ice....................................4-25
Driving Through Deep Standing Water...............4-18
Driving Through Flowing Water.........................4-18
Driving with a Trailer.......................................4-35
Driving..........................................................4-15
At Night.....................................................4-15
City...........................................................4-19
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Freeway.....................................................4-20
Hill and Mountain Roads..............................4-22
In Rain and on Wet Roads...........................4-16
Winter........................................................4-24
Dual Automatic Climate Control System.............3-22
E
Electrical System............................................5-86
Add-On Equipment......................................5-86
Fuses and Circuit Breakers...........................5-87Electrical System (cont.)
Removing the Rear Seat Cushion..................5-92
Emergency Trunk Release Handle.....................2-14
Emissions Inspection and Maintenance
Programs...................................................3-39
Engine Coolant Level Check.............................6-19
Engine Cooling When Trailer Towing..................4-38
Engine Oil Additives........................................5-17
Engine Oil Level Check...................................6-19
Engine..........................................................5-20
Air Cleaner/Filter.........................................5-20
Battery.......................................................5-42
Check and Service Engine Soon Light............3-37
Compartment Overview................................5-12
Coolant Heater............................................2-23
Coolant Temperature Gage...........................3-37
Coolant......................................................5-24
Cooling System Inspection............................6-24
Exhaust.....................................................2-31
Oil .............................................................5-14
Overheating................................................5-27
Starting......................................................2-22
Supercharger Oil.........................................5-19
Entry Lighting.................................................3-14
Erasing HomeLinkžButtons..............................2-42
Express-Down Window....................................2-16
Extender, Safety Belt.......................................1-26
Exterior Lamps...............................................3-12
5