1998 BUICK CENTURY battery

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5-5
CAUTION:
Using a match near a battery can cause battery
gas to explode. People have been hurt doing this,
and some have been blinded. Use a flashlight if
you need more light.
Be sure the battery has enough water. You don't
need to add water to the ACDelco Freedom

battery installed in every new GM vehicle. But
if a battery has filler caps, be sure the right
amount of fluid is there. If it is low, add water to
take care of that first. If you don't, explosive gas
could be present.
Battery fluid contains acid that can burn you.
Don't get it on you. If you accidentally get it in
your eyes or on your skin, flush the place with
water and get medical help immediately.
5. Check that the jumper cables don't have loose or
missing insulation. If they do, you could get a shock.
The vehicles could be damaged too.
Before you connect the cables, here are some basic
things you should know. Positive (+) will go to
positive (+) and negative (
-) will go to a metal
engine part. Don't connect positive (+) to
negative (
-) or you'll get a short that would
damage the battery and maybe other parts too.
CAUTION:
Fans or other moving engine parts can injure you
badly. Keep your hands away from moving parts
once the engine is running.

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5-6
6. Connect the red positive (+) cable to the
remote positive (+) terminal of the vehicle
with the dead battery.
7. Don't let the other end
touch metal. Connect it
to the positive (+)
terminal of the good
battery. Use a remote
positive (+) terminal if
the vehicle has one.
8. Now connect the
black negative (
-) cable
to the good battery's
negative (
-) terminal.

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Don't let the other end touch anything until the next step.
The other end of the negative cable doesn't go to the dead
battery. It goes to a heavy unpainted metal part on the
engine of the vehicle with the dead battery.
9. Attach the cable at least 18 inches (45 cm) away
from the dead battery, but not near engine parts that
move. The electrical connection is just as good
there, but the chance of sparks getting back to the
battery is much less.
10. Now start the vehicle with the good battery and run
the engine for a while.11. Try to start the vehicle with the dead battery.
If it won't start after a few tries, it probably
needs service.
12. Remove the cables in reverse order to prevent
electrical shorting. Take care that they don't touch
each other or any other metal.
A. Heavy Metal Engine Part
B. Good Battery
C. Dead Battery

6-
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Section 6 Service and Appearance Care
Here you will find information about the care of your vehicle. This section begins with service and fuel information,
and then it shows how to check important fluid and lubricant levels. There is also technical information about your
vehicle, and a part devoted to its appearance care.
6
-2 Service
6
-3 Fuel
6
-5 Filling Your Tank
6
-8 Filling a Portable Fuel Container
6
-8 Checking Things Under the Hood
6
-11 Engine Oil
6
-15 Engine Air Cleaner/Filter
6
-17 Supercharger Oil
6
-18 Automatic Transaxle Fluid
6
-20 Radiator Pressure Cap
6
-21 Engine Coolant
6
-25 Windshield Washer Fluid
6
-26 Brakes
6
-29 Battery
6
-31 Bulb Replacement6
-39 Tires
6
-47 Appearance Care
6
-48 Cleaning the Inside of Your Vehicle
6
-51 Cleaning the Outside of Your Vehicle
6
-54 Underbody Maintenance
6
-54 Chemical Paint Spotting
6
-55 GM Vehicle Care/Appearance Materials
6
-56 Vehicle Identification Number (VIN)
6
-57 Electrical System
6
-61 Removing the Rear Seat Cushion
6
-66 Replacement Bulbs
6
-66 Capacities and Specifications
6
-67 Air Conditioning Refrigerants
6
-67 Normal Maintenance Replacement Parts

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3800 Supercharged V6 (L67) Engine
When you open the hood on the 3800 Supercharged engine, here's what you will see:
A. Windshield Washer
Fluid Reservoir
B. Remote Positive
Battery Terminal
C. Radiator Pressure CapD. Engine Oil Dipstick
E. Oil Fill Cap
F. Automatic Transaxle
Fluid DipstickG. Brake Master Cylinder
H. Engine Coolant Recovery Tank
I. Air Cleaner

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6-29 Replacing Brake System Parts
The braking system on a vehicle is complex.
Its many parts have to be of top quality and work well
together if the vehicle is to have really good braking.
Your vehicle was designed and tested with top
-quality
GM brake parts. When you replace parts of your braking
system
-- for example, when your brake linings wear
down and you have to have new ones put in
-- be sure
you get new approved GM replacement parts. If you
don't, your brakes may no longer work properly. For
example, if someone puts in brake linings that are wrong
for your vehicle, the balance between your front and
rear brakes can change
-- for the worse. The braking
performance you've come to expect can change in many
other ways if someone puts in the wrong replacement
brake parts.
Battery
Your new vehicle comes with an ACDelco Freedom

battery. When it's time for a new battery, we recommend
an ACDelco Freedom battery. Get one that has the
replacement number shown on the original battery's label.The battery is located under the rear seat cushion. To
access the battery, see ªRemoving the Rear Seat
Cushionº in the Index. You don't need to access the
battery to jump start your vehicle. See ªJump Startingº
in the Index.
CAUTION:
A battery that isn't properly vented can let
sulfuric acid fumes into the area under the rear
seat cushion. These fumes can damage your rear
seat safety belt systems. You may not be able to
see this damage, and the safety belts might not
provide the protection needed in a crash. If a
replacement battery is ever needed, it must be
vented in the same manner as the original
battery. Always make sure that the vent hose
is properly reattached before reinstalling the
seat cushion.

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To be sure the vent hose (A) is properly attached, the
vent hose connectors (B) must be securely reattached to
the vent outlets (C) on each side of the battery, and the
vent assembly grommet (D) must be secured to the floor
pan (E).
Vehicle Storage
If you're not going to drive your vehicle for 25 days
or more, remove the black, negative (
-) cable from
the battery. This will help keep your battery from
running down.
CAUTION:
Batteries have acid that can burn you and gas
that can explode. You can be badly hurt if you
aren't careful. See ªJump Startingº in the Index
for tips on working around a battery without
getting hurt.
Contact your dealer to learn how to prepare your vehicle
for longer storage periods.
Also, for your audio system, see ªTheft
-Deterrent
Featureº in the Index.

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Fuse Usage
1 Air Conditioning Compressor
2 Not Used
3 Not Used
4 Horn
5 Not Used
6 Not Used
7 Cooling Fan #2
8 Cooling Fan #3
9 Cooling Fan
10 ABS Main
11 ABS Pump Motor
12 Not Used
13 Horn
14 Not UsedRemoving the Rear Seat Cushion
To access the battery and main fuse boxes, the rear seat
cushion must be removed. You may wish to have your
dealer do this for you.
NOTICE:
The battery and main fuse boxes are located under
the rear seat cushion. The battery's ground
terminal and some relay wires are exposed. To help
avoid damage to the battery and wires, be careful
when removing or reinstalling the seat cushion. Do
not remove covers from covered parts. Do not store
anything under the seat, as objects could touch
exposed wires and cause a short.