1998 BUICK REGAL wiring

To replace your battery: Trunk
1. Insert a flat object like a dime into the slot on the
back
of the transmitter. Gently pry apart the front
and back.
2. Gently pry the battery out of the transmitter.
3. Put the new battery into the transmitter as
shown on the transmitter (use type CR2032 battery
or equivalent).
4. Put the two halves back together. Make sure the
halves are together tightly
so water won’t get in.
5. Resynchronize and then test the transmitter.
Resynchronizing Your Remote Keyless
Entry Transmitter
After you have changed the battery in your transmitter,
you will need to resynchronize the transmitter.
To do
this, press the LOCK and UNLOCK buttons on the
transmitter together and hold for approximately seven
seconds or until three brief horn chirps are heard. You
will also need to use this procedure
if your vehicle has
lost battery power
for an extended period of time.
It can be dangerous to drive with the trunk open
because carbon monoxide (CO) gas can come into
your vehicle. You can’t see or smell CO.
It can
cause unconsciousness and even death.
If you must drive with the trunk open or if
electrical wiring or other cable connections must
pass through the seal between the body and
the trunk:
Make sure all windows are shut.
0 Tbrn the fan on your heating or cooling
system to its highest speed with the setting
on
VENT. That will force outside air into
your vehicle. See “Comfort Controls” in
the Index.
instrument panel, open them all the
way.
If you have air outlets on or under the
See “Engine Exhaust’’ in the Index.
2-14
ProCarManuals.com

To open the astroroof, push the rear of the switch once
and the astroroof will open to the vent position only.
You will need to open the sunshade by hand.
Push the rear of the switch
a second time and the
astroroof will open the remainder
of the way by itself.
This is the express-open feature.
To close the astroroof, push and hold the front of the
switch until the sunroof motor stops. The sunshade can
only be closed by hand.
Cellular Phone Readiness Package
(If Equipped)
Your vehicle may be equipped with a wiring harness that
will work with a dealer-installed
GM Hughes@ portable
phone. The phone has integrated features with the radio
and car audio speakers. See your dealer for more details.
OnStar System (Option)
Your vehicle has been prewired for dealer installation of
the OnStar System. The following services are available
24 hours a day:
0 Roadside Service with Location
0 Emergency Services Button
0 Remote Door Unlock
Theft Vehicle Tracking
Automatic Notification of Air Bag Deployment
Concierge/Customer Conveniences Services
For more information, contact your dealer.
2-54
ProCarManuals.com

Air Bag Readiness Light
There is an air bag readiness light on the instrument
panel, which shows the air bag symbol. The system
checks the air bag’s electrical system for malfunctions.
The light tells you if there is an electrical problem. The
system check includes the air bag modules, the wiring
and the crash sensing and diagnostic module. For more
information on the air bag system, see “Air Bag” in
the Index.
This light will come
on
when you start your engine,
and it will flash for
a few
seconds. Then
the light
should
go out. This means
the system is ready.
If the air bag readiness light stays on after you start the
engine or comes on when
you are driving, your air bag
system may not work properly. Have your vehicle
serviced right away.
The air bag readiness light should flash for a few
seconds when you turn the ignition key to
RUN. If the
light doesn’t come on then, have it fixed
so it will be
ready
to warn you if there is a problem.
Charging System Light
4
+I
The charging system light
will come on briefly when
you turn on the ignition, as
a check to show you it’s
working. Then it should
go out.
If it stays
on, or comes on while you are driving, you
may have a problem with the charging system. It could
indicate that you have a loose drive belt or another
electrical problem. Have it checked right away. Driving
while
this light is on could drain your battery.
If you must drive a short distance with the light on, be
certain to turn
off all your accessories, such as the radio
and air conditioner.
2-60
ProCarManuals.com

Making Thns
I NOTICE:
Making very sharp turns while trailering could
cause the trailer
to come in contact with the
vehicle. Your vehicle could be damaged. Avoid
making very
sharp turns while trailering.
When you’re turning with a trailer, make wider
turns than normal.
Do this so your trailer won’t strike
soft shoulders, curbs, road signs, trees or other objects.
Avoid jerky or sudden maneuvers. Signal well
in advance.
Turn Signals When Towing a Trailer
When you tow a trailer, your vehicle may need a
different turn signal flasher and/or extra wiring. Check
with your Buick dealer. The green arrows on your
instrument panel will flash whenever you signal a turn
or lane change. Properly hooked up, the trailer lamps
will also flash, telling other drivers you’re about to turn,
change lanes
or stop.
When towing
a trailer, the green arrows on your
instrument panel will flash for turns even
if the bulbs on
the trailer are burned out. Thus, you may think drivers
behind you are seeing your signal when they are not. It’s
important to check occasionally to be sure the trailer
bulbs are still working.
Driving On Grades
Reduce speed and shift to a lower gear before you start
down
a long or steep downgrade. If you don‘t shift
down, you might have to use your brakes
so much that
they would get hot and no longer work well.
On
a long uphill grade, shift down and reduce your
speed to around
45 mph (70 km/h) to reduce the
possibility
of engine and transaxle overheating.
4-39
ProCarManuals.com

Attach T-hook chains in
front of the wheels, into the
slots
of the front shipping
brackets on the cradle (both
sides). Insert the hook from
the inward side of the slot
and not the outward side.
These slots are
to be used when securing to
car-carrier equipment.
NOTICE:
When attaching T-hooks to the shipping slots in
the frame rail, attach them inside of the frame to
avoid damage to the frame or front fascia.
Attach a separate safety
chain around the outboard
end
of each lower
control arm.
I NOTICE:
I
Take care not to damage the brake pipes and
hoses or the
ABS sensor and wiring. I
5-12
ProCarManuals.com

4. Connect the new headlamp assembly to the wiring
harness, making sure the connector tab snaps
into place.
5. Insert the headlamp into the slots in the fascia.
6. Slide the retainers downward until they are
fully seated.
Headlamp Aiming
Your vehicle has a modular headlamp system. These
headlamps have horizontal and vertical aim indicators.
The aim has been optically pre-set at the factory and
should need
no further adjustment.
If your vehicle is damaged in an accident and the
headlamp aim seems to be affected,
see your dealer.
Headlamps on damaged vehicles may require
recalibration of the vertical and horizontal aim by
your dealer.
To check the aim, the vehicle should be properly
prepared as follows:
0
0
0
0
0
0
0
Place the vehicle on a level pad or 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 gas 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.
I I
NOTICE:
To make sure your headlamps are aimed
properly, read all the instructions before
beginning. Failure to follow these instructions
could cause damage to headlamp parts.
6-35
ProCarManuals.com

Dome Lamp
1.
2.
3.
4.
5.
6.
7.
8.
Grasp the front center and rear center positions
of the dome lamp housing and squeeze together until
the housing releases from the base plate.
A
flat-bladed screwdriver may be necessary to pry the
assembly loose.
Lift the plastic locking tab on the electrical
connector and pull the connector from the dome
lamp assembly.
Grasp the bulb housing located in the center
of the
assembly and pull straight up.
Pull the bulb out
of the socket.
Push in a new bulb.
Replace the socket into the dome lamp assembly.
Reconnect the dome lamp assembly to the wiring
harness, making sure the connector tab snaps
into place.
Reposition the dome lamp assembly
to the roof, and
gently push the assembly into the base plate. 1. Turn
on the wipers to the low wipe setting.
For any bulb changing procedure
not listed in this
section, contact your dealer service department.
Windshield Wiper Blade Replacement
6-41
ProCarManuals.com

Electrical System
Add-on Electrical Equipment
1 NOTICE:
Don’t add anything electrical to your vehicle
unless you check with your dealer first. Some
electrical equipment can damage your vehicle and the damage wouldn’t be covered by your
warranty. Some add-on electrical equipment
can keep other components from working as
they should.
Your vehicle has an air bag system. Before attempting to
add anything electrical to your vehicle, see “Servicing
Your Air Bag-Equipped Vehicle” in the Index.
Headlamp Wiring
The headlamp wiring is protected by a circuit breaker in
the underhood electrical center. An electrical overload
will cause the lamps to
go on and off, or in some cases
to remain off. If this happens, have your headlamp
system checked right away.
Windshield Wipers
The windshield wiper motor is protected by a circuit
breaker and a fuse. If the motor overheats due to heavy
snow, etc., the wiper will stop until the motor cools. If
the overload is caused by some electrical problem, have
it fixed.
Power Windows and Other Power Options
Circuit breakers in the fuse panel protect the power
windows and other power accessories. When the current
load is too heavy, the circuit breaker opens and closes,
protecting
the circuit until the problem is fixed.
6-61
ProCarManuals.com