2003 BUICK REGAL suspension

To check the aim, the vehicle should be properly
prepared as follows:
•The headlamps must be off for one hour prior to
aiming and must remain off during this procedure.
•The vehicle must have all four tires on a perfectly
level surface.
•If necessary, pads may be used on an uneven
surface.
•The vehicle should not have any snow, ice or mud
attached to it.
•The vehicle should be fully assembled and all other
work stopped while headlamp aiming is being done.
•There should not be any cargo or loading of
the vehicle, except it should have a full tank of
fuel and one person or 160 lbs (75 kg) on the
driver’s seat.
•Close all doors.
•Tires should be properly inflated.
•Rock the vehicle to stabilize the suspension.A. Vertical Aim Adjustment Screw
B. Horizontal Aim Adjustment Screw
Open the hood and locate the vertical and horizontal
aim indicators. The aiming screw for the vertical
aim indicator (A) is at the center of the headlamp cover
and the aiming screw for the horizontal aim indicator
is on the outboard side of the headlamp cover (B).Driver’s Side Headlamp Shown
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2003 - Regal OM

Tire Chains
{CAUTION:
If your vehicle has P225/60R16 size tires, don’t
use tire chains, there’s not enough clearance.
Tire chains used on a vehicle without the
proper amount of clearance can cause damage
to the brakes, suspension or other vehicle
parts. The area damaged by the tire chains
could cause you to lose control of your vehicle
and you or others may be injured in a crash.
Use another type of traction device only if its
manufacturer recommends it for use on your
vehicle and tire size combination and road
CAUTION: (Continued)
CAUTION: (Continued)
conditions. Follow that manufacturer’s
instructions. To help avoid damage to your
vehicle, drive slowly, readjust or remove the
device if it’s contacting your vehicle, and don’t
spin your wheels.
If you dond traction devices that willt,
install them on the front tires.
Notice:If your vehicle has a tire size other than
P225/60R16 size tires, use tire chains only where
legal and only when you must. Use only SAE Class
″S″type chains that are the proper size for your
tires. Install them on the front tires and tighten them
as tightly as possible with the ends securely
fastened. Drive slowly and follow the chain
manufacturer’s instructions. If you can hear the
chains contacting your vehicle, stop and retighten
them. If the contact continues, slow down until
it stops. Driving too fast or spinning the wheels with
chains on will damage your vehicle.
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2003 - Regal OM

Maintenance Schedule......................................6-2
Introduction...................................................6-2
Your Vehicle and the Environment....................6-2
Maintenance Requirements..............................6-2
How This Section is Organized.........................6-3
Part A: Scheduled Maintenance Services...........6-4
Using Your Maintenance Schedule....................6-4
Scheduled Maintenance...................................6-4
Part B: Owner Checks and Services................6-10
At Each Fuel Fill..........................................6-10
At Least Once a Month.................................6-10
At Least Twice a Year...................................6-11At Least Once a Year...................................6-11
Part C: Periodic Maintenance Inspections.........6-14
Steering, Suspension and Front Drive Axle
Boot and Seal Inspection............................6-14
Exhaust System Inspection............................6-14
Fuel System Inspection..................................6-15
Engine Cooling System Inspection...................6-15
Throttle System Inspection.............................6-15
Brake System Inspection................................6-15
Part D: Recommended Fluids and Lubricants. . . .6-16
Part E: Maintenance Record...........................6-17
Section 6 Maintenance Schedule
6-1
2003 - Regal OM

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 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 7-10.
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, chang, 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 theoor pan or could let
exhaust fumes into the vehicle. SeeEngine Exhaust
on page 2-29.
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2003 - Regal OM

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
Transmission, Transaxle, Transfer
Case Unit Repair Manual
This manual provides information on unit repair service
procedures, adjustments, and specications for GM
transmissions, transaxles, and transfer cases.
RETAIL SELL PRICE: $50.00
7-10
2003 - Regal OM

How to Add Coolant to the Coolant
Recovery Tank............................................5-30
How to Add Coolant to the Radiator..................5-31
How to Add Fluid............................................5-21
How to Check........................................5-20, 5-57
How to Check and Add Oil...............................5-18
How to Check Power Steering Fluid..................5-37
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-11
Hydroplaning..................................................4-20
I
If No Steam Is Coming From Your Engine..........5-27
If Steam Is Coming From Your Engine...............5-26
If the Light Is Flashing.....................................3-36
If the Light Is On Steady.................................3-37
If You Are Stuck in Sand, Mud, Ice or Snow
.......4-30
If You Do Decide To Pull A Trailer
.....................4-36
If You’re Caught in a Blizzard
...........................4-28
Ignition Positions
.............................................2-18
Ignition Transaxle Lock Check
..........................6-13
Illumination on Remote Activation
........................ 2-7
Infants and Young Children, Restraints
...............1-29
Inflation -- Tire Pressure
..................................5-57Inspection
Brake System.............................................6-15
Engine Cooling System................................6-15
Exhaust System..........................................6-14
Fuel System...............................................6-15
Part C - Periodic Maintenance.......................6-14
Steering, Suspension and Front Drive Axle
Boot and Seal.........................................6-14
Throttle System...........................................6-15
Instrument Panel
Cluster.......................................................3-27
Overview..................................................... 3-2
Instrument Panel Brightness.............................3-13
Instrument Panel Fuse Block............................5-87
Interior Lamps................................................3-13
Interior Plastic Components..............................5-80
J
Jump Starting.................................................5-43
K
Key Lock Cylinders Service..............................6-11
Keyless Entry System....................................... 2-3
Keys............................................................... 2-2
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2003 - Regal OM

M
Maintenance, Normal Replacement Parts............5-93
Maintenance Schedule
At Each Fuel Fill.........................................6-10
At Least Once a Month................................6-10
At Least Once a Year..................................6-11
At Least Twice a Year..................................6-11
Brake System Inspection..............................6-15
Engine Cooling System Inspection.................6-15
Exhaust System Inspection...........................6-14
Fuel System Inspection................................6-15
How This Section is Organized....................... 6-3
Introduction.................................................. 6-2
Maintenance Requirements............................. 6-2
Part A - Scheduled Maintenance Services......... 6-4
Part B - Owner Checks and Services.............6-10
Part C - Periodic Maintenance Inspections......6-14
PartD-Recommended Fluids
and Lubricants.........................................6-16
PartE-Maintenance Record........................6-17
Scheduled Maintenance................................. 6-4
Steering, Suspension and Front Drive Axle
Boot and Seal Inspection..........................6-14
Throttle System Inspection............................6-15
Using Your................................................... 6-4
Your Vehicle and the Environment................... 6-2Maintenance When Trailer Towing.....................4-41
Making Turns.................................................4-39
Malfunction Indicator Light................................3-35
Manual Operation...................................3-17, 3-21
Manual Seats................................................... 1-2
Matching Transmitter(s) to Your Vehicle............... 2-7
Mexico, Central America and Caribbean
Islands/Countries (Except Puerto Rico and
U.S. Virgin Islands)–Customer Assistance....... 7-5
Mirrors
Automatic Dimming Rearview........................2-32
Automatic Dimming Rearview with OnStar
®.......2-32
Manual Rearview Mirror................................2-31
Manual Rearview Mirror with OnStar
®.............2-31
Outside Convex Mirror.................................2-33
Outside Power Foldaway Mirrors....................2-33
Modes...........................................................3-44
MyGMLink.com................................................ 7-3
N
New Vehicle Break-In......................................2-17
Normal Maintenance Replacement Parts............5-93
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2003 - Regal OM

Sensors.........................................................3-22
Service........................................................... 5-3
Adding Equipment to the Outside of Your
Vehicle..................................................... 5-4
Doing Your Own Work................................... 5-3
Engine Soon Light.......................................3-35
Publications Ordering Information...................7-10
Vehicle Soon Light.......................................3-41
Service Bulletins.............................................7-11
Service Engine Soon Light...............................3-35
Service Manuals.............................................7-10
Setting Preset Stations............................3-46, 3-50
Setting the Time.............................................3-45
Setting the Tone (Bass/Treble)..................3-47, 3-51
Sheet Metal Damage.......................................5-83
Shift Lock Release..........................................2-27
Shifting Into Park (P).......................................2-25
Shifting Out of Park (P)...................................2-27
Shoulder Belt Height Adjuster...........................1-14
Skidding........................................................4-16
Some Other Rainy Weather Tips.......................4-20
Special Fabric Cleaning Problems.....................5-79
Specifications, Capacities.................................5-92
Speedometer..................................................3-28
Split Folding Rear Seat
..................................... 1-6
Starter Switch Check
.......................................6-12
Starting Your Engine
.......................................2-19Steering........................................................4-12
Steering in Emergencies..................................4-13
Steering, Suspension and Front Drive Axle Boot
and Seal Inspection.....................................6-14
Steering Tips..................................................4-12
Steering Wheel Controls, Audio.........................3-57
Storage Areas
Center Console Storage Area........................2-35
Convenience Net.........................................2-36
Glove Box..................................................2-35
Storing the Flat Tire and Tools..........................5-75
Storing the Spare Tire and Tools.......................5-76
Stuck in Sand, Mud, Ice or Snow......................4-30
Sun Visors.....................................................2-15
Sunroof.........................................................2-36
T
Tachometer....................................................3-29
Taillamps
Turn Signal, and Stoplamps..........................5-53
TCS Warning Light..........................................3-33
Theft-Deterrent, Radio.....................................3-55
Theft-Deterrent Systems...................................2-16
PASS-Key
®II ..............................................2-16
Throttle System Inspection...............................6-15
Tilt Wheel........................................................ 3-5
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2003 - Regal OM