2004 BUICK REGAL power steering

A. Windshield Washer Fluid Reservoir. SeeWindshield
Washer Fluid on page 5-42.
B. Battery. SeeBattery on page 5-46.
C. Remote Positive (+) Battery Terminal. SeeBattery
on page 5-46.
D. Underhood Electrical Center. SeeFuses and Circuit
Breakers on page 5-98.
E. Radiator Pressure Cap. SeeCooling System on
page 5-32.
F. Engine Coolant Recovery Tank. SeeCooling System
on page 5-32.G. Power Steering Fluid Reservoir (Below Generator).
SeePower Steering Fluid on page 5-40.
H. Electric Cooling Fan. SeeCooling System on
page 5-32.
I. Engine Oil Dipstick. SeeEngine Oil on page 5-16.
J. Engine Oil Fill Cap. SeeEngine Oil on page 5-16.
K. Automatic Transaxle Fluid Dipstick. SeeAutomatic
Transaxle Fluid on page 5-24.
L. Brake Fluid Reservoir. SeeAutomatic Transaxle
Fluid on page 5-24.
M. Engine Air Cleaner/Filter. SeeEngine Air
Cleaner/Filter on page 5-22.
5-15

12. Then replace the pressure cap. At any time during
this procedure if coolant begins to ow out of the
ller neck, reinstall the pressure cap. Be sure
the arrow on the pressure cap lines up like this.
13. Check the coolant in the recovery tank. The level in
the coolant recovery tank should be at the HOT
mark when the engine is hot or at the COLD mark
when the engine is cold.
Power Steering Fluid
The power steering uid reservoir is located on the
passenger’s side of the vehicle at the back of the engine
compartment.. SeeEngine Compartment Overview on
page 5-12for reservoir location.
5-40

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.
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.
If the uid is at the ADD mark, you should add uid.
When the engine compartment is hot, the level should
be at the HOT mark.
What to Use
To determine what kind of uid to use, see
Recommended Fluids and Lubricants on page 6-12.
Always use the proper uid. Failure to use the proper
uid can cause leaks and damage hoses and seals.
5-41

Tire Terminology and Denitions
Air Pressure:The amount of air inside the tire pressing
outward on each square inch of the tire. Air pressure
is expressed in pounds per square inch (psi) or
kilopascal (kPa).
Accessory Weight:This means the combined weight
of optional accessories. Some examples of optional
accessories are, automatic transmission, power steering,
power brakes, power windows, power seats, and air
conditioning.
Aspect Ratio:The relationship of a tire’s height to
its width.
Belt:A rubber coated layer of cords that is located
between the plies and the tread. Cords may be made
from steel or other reinforcing materials.
Bead:The tire bead contains steel wires wrapped by
steel cords that hold the tire onto the rim.
Bias Ply Tire:A pneumatic tire in which the plies are
laid at alternate angles less than 90 degrees to the
centerline of the tread.
Cold Ination Pressure:The amount of air pressure in
a tire, measured in pounds per square inch (psi) before a
tire has built up heat from driving. SeeInation - Tire
Pressure on page 5-68.Curb Weight:This means the weight of a motor
vehicle with standard and optional equipment including
the maximum capacity of fuel, oil and coolant, but
without passengers and cargo.
DOT Markings:A code molded into the sidewall of a
tire signifying that the tire is in compliance with the U.S.
Department of Transportation motor vehicle safety
standards. The DOT code includes the Tire Identication
Number (TIN), an alphanumeric designator which can
also identify the tire manufacturer, production plant,
brand and date of production.
GVWR:Gross Vehicle Weight Rating, seeLoading
Your Vehicle on page 4-33.
GAWR FRT:Gross Axle Weight Rating for the front
axle, seeLoading Your Vehicle on page 4-33.
GAWR RR:Gross Axle Weight Rating for the rear axle,
seeLoading Your Vehicle on page 4-33.
Intended Outboard Sidewall:The side of an
asymmetrical tire that must always face outward when
mounted on a vehicle.
Kilopascal (kPa):The metric unit for air pressure.
There are 6.9 kPa’s to one psi.
Light Truck (LT-Metric) Tire:A tire used on light duty
trucks and some multipurpose passenger vehicles.
5-66

Fuses Usage
CRUISE Cruise Control
Blank Not Used
CLSTR Instrument Panel Cluster
LTR Cigarette Lighter
STOP LAMPS Stoplamps
ONSTAR OnStar
®
PRK/LGHT Parking Lamps
Blank Not Used
CRNK SIG,
BCM, CLSTRCrank Signal, Body Control Module,
Cluster, Powertrain Control Module
HVACIgnition Signal, Heating, Ventilation
and Air Conditioning Control Head
BTSI (REGAL) Shifter Lock Solenoid
AIR BAG Air Bag
BCM PWR Body Control Module
HAZRD Hazard Warning Flashers
Fuses Usage
LH HTD SEAT Driver’s Heated Seat
Blank Not Used
BCM ACCYIgnition Signal: Hot in ACCESSORY
and RUN, Body Control Module
Blank Not Used
LOW BLWER Low Blower
ABS Anti-Lock Brakes
TRN SIG Turn Signals, Cornering Lamps
RADIO, HVAC,
RFA, CLSTR
ALDLRadio; Heating Ventilation, and Air
Conditioning Head; Remote Keyless
Entry, Cluster
HI BLWR High Blower
RH HTD SEAT Passenger’s Heated Seat
STR/WHL
CNTRLAudio Steering Wheel Controls
WPR Windshield Wipers
5-100

Underhood Fuse Block
Some fuses and relays are located in the underhood
fuse block on the passenger’s side of the vehicle in the
engine compartment. SeeEngine Compartment
Overview on page 5-12for more information on location.
Fuses Usage
1 Anti-Lock Brake System
2 Starter Solenoid
3Power Seats, Rear Window
Defogger, Heated Seats
4High Blower, Hazard Flasher,
Stoplamps, Power Mirror, Door
Locks
5Ignition Switch, BTS Shifter Lock
Solenoid, Stoplamps, Anti-Lock
Brake System, Turn Signals,
Cluster, Air Bag, Daytime Running
Lamps Module
6 Cooling Fan
7Retained Accessory Power (RAP),
Remote Keyless Entry, Data Link,
Heating, Ventilation and Air
Conditioning Head, Cluster, Radio,
Cigarette Lighter
8Ignition Switch, Windshield Wipers,
Radio, Steering Wheel Controls,
Body Control Module, Power
Windows, Sunroof; Heating,
Ventilation and Air Conditioning
Controls; Daytime Running Lamps,
Rear Window Defogger Relay
5-101

Maintenance Footnotes
†The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to
the completion of the vehicle’s useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the
maintenance be recorded.
(a)Visually inspect brake lines and hoses for proper
hook-up, binding, leaks, cracks, chang, etc. Inspect
disc brake pads for wear and rotors for surface
condition. Inspect other brake parts, including calipers,
parking brake, etc.
(b)Visually inspect front and rear suspension and
steering system for damaged, loose or missing parts or
signs of wear. Inspect power steering lines and
hoses for proper hook-up, binding, leaks, cracks,
chang, etc.
(c)Visually inspect hoses and have them replaced if they
are cracked, swollen or deteriorated. Inspect all pipes,
ttings and clamps; replace with genuine GM parts as
needed. To help ensure proper operation, a pressure test
of the cooling system and pressure cap and cleaning the
outside of the radiator and air conditioning condenser is
recommended at least once a year.(d)Visually inspect wiper blades for wear or cracking.
Replace blade inserts that appear worn or damaged
or that streak or miss areas of the windshield.
(e)Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors and anchorages
are working properly. Look for any other loose or
damaged safety belt system parts. If you see anything
that might keep a safety belt system from doing its
job, have it repaired. Have any torn or frayed safety belts
replaced. Also look for any opened or broken air bag
coverings, and have them repaired or replaced. (The air
bag system does not need regular maintenance.)
(f)Lubricate all key lock cylinders. Lubricate all hinges
and latches, including those for the body doors,
hood, secondary latch, pivots, spring anchor, release
pawl, rear compartment, glove box door, console
door and any folding seat hardware. More frequent
lubrication may be required when exposed to a corrosive
environment. Applying silicone grease on weatherstrips
with a clean cloth will make them last longer, seal
better and not stick or squeak.
(g)If you drive regularly under dusty conditions, the
lter may require replacement more often.
6-7

Recommended Fluids and
Lubricants
Fluids and lubricants identied below by name, part
number or specication may be obtained from your
dealer.
Usage Fluid/Lubricant
Engine OilEngine oil which meets GM
Standard GM6094M and displays
the American Petroleum Institute
Certied for Gasoline Engines
starburst symbol. To determine the
proper viscosity for your vehicle’s
engine, seeEngine Oil on
page 5-16.
Engine Coolant50/50 mixture of clean, drinkable
water and use only
DEX-COOL
®Coolant. SeeEngine
Coolant on page 5-26.
Hydraulic Brake
SystemDelco Supreme 11 Brake Fluid or
equivalent DOT-3 brake uid.
Windshield
Washer SolventGM Optikleen
®Washer Solvent.
Power Steering
SystemGM Power Steering Fluid (GM Part
No. U.S. 89021184, in Canada
89021186).
Usage Fluid/Lubricant
Automatic
TransaxleDEXRON®-III Automatic
Transmission Fluid.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474).
SuperchargerSupercharger Oil (GM Part No. U.S.
12345982, in Canada 10953513).
SeeSupercharger Oil on page 5-21.
Hood Latch
Assembly,
Secondary
Latch, Pivots,
Spring Anchor
and Release
PawlLubriplate Lubricant Aerosol (GM
Part No. U.S. 12346293, in Canada
992723) 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).
Weatherstrip
ConditioningDielectric Silicone Grease (GM Part
No. U.S. 12345579, in Canada
992887).
6-12