light BUICK ROADMASTER 1993 Workshop Manual

. ,. , .. ., , ...
Unskrew .tht$wingnut. From outside the vehicle,,
carefully
pull the taillight assembly away from the body. Press the
bulb housing release lever and turn the housing
1/4.turn counter-clockwise (to the left) to remove it..
To remove the bulb, push it in and rotate it
counterclockwise(to the left).
Reverse
all the steps to reassemble the taillight housing.

Center High Mounted Stop Light
Replacement
Lift up the tailgate window. Unscrew the two screws. Bring down the bulb assembly. Pull a bulb out of.its
retainer and replace. Reverse the,steps to reassemble.
Loading Your Vehi.cIe
proper size, speed rating and recommended inflation
pressures for the tires
on your vehicle. It also gives you
important information about the number
of people that
can be in your vehicle and the total weight that you can
carry.
This weight is called the Vehicle Capacity Weight
and includes the weight of
all occupants, cargo, and all
nonfactory-installed options.
@I OCCUPAN'TS TIRE-LOADING
INF0,RMATlON
.
V:EHICLE CAP, WT.
FRT.. CTR. RR. TOTAL LBS. KG
1
MAX. LOADING & GVWR SAME AS VEHICLE
CAPACITY
WEIGHT XXX COLD TIRE
TIRE SIZE
SPEED PRESSURE
.RTG PSI/KPa
FRT.
RR.
SPA.
IF TIRES ARE HOT, ADD 4PSI/28KPa
SEE OWNER'S 'MANUAL FOR ADDITIONAL
INF0,RMATlON
ll]mp ,$$$#/:::
Two labels on your vehicle show how much weight it
may properly carry. The Tire-Loading Information label
found -on- the rear edge of the driver's door tells you the
Y
MFD BY GENER-At MOTORS CORP
DATE GVWR GAWR FRT GAWR
RR
THIS VEHICLE CONFORMS TO 'ALL APPLI- CABLE US. FE,DE.RAL MOT0.R'
VEH'ICLE
SAFETY, BU.MPER,-AND THiEFT PREVENTI0.N
STANDARD,S IN EFFECT ON THE DATE
OF
MANUFACTURE SHOWN ABOVE.
~i~,l\i$;~!~~!~
The other label is the Certification 'label, found on the'
rear edge of the driver's do,ar. It tells you the gross
weight capacity
of your vehicle, called the GVWR
(Gross Vehicle' Weight Rating). The GVWX includes the.
weight of the vehicle, all occupants, fuel and cargo.
269

Cleaning the Inside of Your Buick using r oam-Type Cleaner on Fabric
Use a vacuum cleaner often to get rid of dust and loose
'dirt. Wipe vinyl with
a clean, damp cloth.
Your Buick dealer has two
GM cleaners - a
solvent-type spot lifter and a foam-type,powdered
'cleaner. They will clean normal spots and stains very well.
:Here are some cleaning tips:
0 Always read the instructions on the cleaner label.
Clean up stains as soon as: you,.cgnm- before they
0 use a clean dotn or sponge, and change to a clean
- area often. A soft brush may be used if stains are
Use soivent-type cleaners in a well-ventilated area
If a ring forms after spot cleaning, clean the entire
se
stubborn..
1.
only, If you use them,
don't saturate the stained area.
area immediately
or it will set.
0 Vacuum and brush the area to remove any loose dirt.
Always clean a whole trim panel or section. Mask surrounding trim along stitch or welt lines.
~ '
Mix Multi-Purpose Powdered 'Cleaner following the
directions on the container label.
.
Use suds only and apply with a clean sponge.
0 Don't saturate the material.
0 Don't rub it roughly; -''
0 As SOOR as you've cleaned the section, use a sponge , *,
to remove the suds.
0 Rinse the section with a clean, wet sponge.
0 Wipe off what's left with a slightly damp paper towel
or cloth. ' ,? I ..
0 Then dry it immediately with an air hose, a hair dryer
or a heat lamp.
Wipe with a clean cloth.
280 7
-

Using Solvent-Type Cleaner on
Fabric
First, see if you have to use solvent-type cleaner at all.
Some sp-ots and stains will clean
off better with just
water and mild soap.
If you need to use it, then:
0
0
Gently scrape excess soil from the trim material with
a clean, dull knife or scraper. Use very. little cleaner,
light pressure and clean cloths (preferably
cheesecloth). Cleaning should start at the outside
of
the stain, “feathering” toward the center. Keep changing to a clean section of the cloth.
When you clean a stain from fabric, immediately dry
the area with an air hose; hair dryer, or heat lamp to
help prevent a cleaning ring. (See the previous
NOTICE.)
1
Special Cleaning Problems I, I.
Greasy or Oily Stains: Like grease, oil, butter,
margarine, shoe polish, coffee with cream, chewing i:
and asphalt. gum, cosmetic creams, vegetable oils, wax crayon, tar
Carefully scrape
off excess stain. 1,
Then follow the solvent-type instructions above. !
Shoe polish, wax crayon, tar and asphalt will stain if
left on a vehicle seat fabric. They should be removed
as soon as possible. Be careful, because the cleaner
will dissolve them and may cause them
to bleed.
Non-Greasy Stains: Like catsup, coffee (black), egg,
fruit, fruit juice, milk,
so& drinks, wine, vomit, urine and
blood.
0 Carefully scrape off excess stain, then sponge the
If a stain remains, follow the foam-type instructions
If an odor lingers after cleaning vomit or urine, treat
I
i
soiled area with cool’water.
above.
, ..:
the area with a waterbaking soda solution:
1 teaspoon (5 ml) of baking soda to 1 cup (250, ml)
of lukewarm water.
- 281

Finally, if needed, clean lightly with solvent-type Care of Safety Belts
cleaner.
Combination Stains: Like candy, ice cream,
mayonnaise, chili sauce and unknown stains.
@ Carefully scrape off excess stain, then clean with
If a stain remains, clean it with solvent-type cleaner.
cool water and allow to dry.
Cleaning Vinyl .or Leather
Just use warm water and a clean cloth.
Rub with a clean, damp cloth to remove dirt. You
may have to do it more than once.
Things
like tar, asphalt and shoe polish will stain if
you don’t get them off quickly. Use a clean.-clQth -and.
solvent-type vinylfleather cleaner.
Cleaning the Top of the Instrument
Panel
Use only mild soap and water to clean the top surtaces
,of the instrument panel. Sprays containing silicones or
.
waxes may cause annoying reflections in the windshield
and even make
it difficult to see through the windshield
under certain conditions.
-
Keep belts clean and dry.
/L CAUTIOC
Do not bleach or dye satety belts. IT you UO, I
may severely weaken them. In a crash they
might not
be able to provide adequate
protection. Clean safety belts only with
mi
soap and lukewarm water.
I
Glass
Glass should be cleaned often. GM Glass Cleaner (GM
Part No. 1050427) or a liquid household! glass cleaner
will remove normal tobacco smoke and dust films.
Don’t use abrasive cleaners on glass, because they may
cause scratches. Avoid placing decals
OR the inside rear
window, since thay may have to be scraped
off later. If
abrasive cleaners are used on the inside of the rear
window, an electric defogger element may be damaged.
Any temporary license should not be attached across the defogger grid.

Fuses and Circuit Breakers
The wiring circuits in your car are protected from short
circuits by a combination of fuses, circuit breakers, and
fusible thermal links in the wiring itself. This greatly
reduces the chance.
of fires caused by electrical
problems.
Be sure to use the correct fuse if you need to replace
one.
If you ever have a problem on the road and don’t
have a spare fuse, you can ‘‘borrow” one of the correct
value. Just pick some feature
of your car that you can
get along without
- like the radio or cigarette lighter -
and use its fuse, if it is of the value you need. Replace it
as soon as you can.
The cover will pull right
off. To put the cover ,hack
on make sure the tabs are
inserted in the front first.

The fuse chart, below, shows how to tell a blown fuse
from a good fuse.
GOOD
FUSE
I
BLOWN
-FUSE
I
GM PARTNO.. ' RATING ' LJ COLOR
12004003 ................... 3 AMP VIOLET
I2004005 ................... 5 AMP TA-N- .
12004006 ................... 7.5 AMP BROWN
12004007 ................... IO AMP . RED
12004008 ................... 15 AMP LIGHT BLUE
12004009 ................... 20 AMP YELLOW
12004010 ................... 25 AMP WHITE
1200401 1 .................... 30 AMP LI'GHT GREEN
Headlights
The headlight wiring is protected by a circuit breaker in
the light switch. An electrical overload will cause the
lights to
go on and off, or in some cases to remain off. If
this happens, have your headlight wiring checked right
away.
Windshield Wipers.
The windsheld wiper motor is protected hy 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 and
not snow, etc., be sure to get 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 or goes
away.
Lumbar Power Seat Controls
If you have the lumbar controls for the power seat, there
is a
10 amp fuse under each seat 'wrapped in tape.
Should your
seat ever not work, this fuse should be
checked.

.Replaceable Light Bul-bs
Application Number
EXTERIOR
Cornering ..........................
Headlight ...... .? . ...................
. 2057
. 9004
Park/Turn ....... ...... .. ................ 2057NA
Side Marker ........................... 194
Underhood ............................ 56 1
REAR
Backup ............................. 2057
High Mounted Stop (Sedan) ............. 1141
High Mounted Stop (Wagon) ............. 577
License .................... , ........... 168
Side Marker (Wagon) ................... 194
Tail (Sedan) ............................ 194
Tail/Stop/Turn ........................ 2057
Application Number .1
1N.TERIOR ILLUMINATION
'1 " . i
.Ashtray . ............................
Door Courtesy .........................
Glovebox ..............................
Instrument Panel .......................
Luggage Compartment ..................
Reading ..............................
Rear Body Pillar Assist Handle : ..........
Roof Rail Courtesy .....................
Courtesy ................... * ..........
1~65
168
563
194
168
9.20 192
194 192
Visor Vanity Mirror .............. TS-14VlCP
5.'r 1 .:e 1 .
A ...

Service Publications
In€ormation on. how to obtain Product Service .-
Publications, Subscriptions and Indexes as described
below
is applicable only in the fifty U.S. states (and the
District
of Columbia) and only for %US and light trucks
,with
GVWR less than. 10,000’pounds (4 536 kg).
In Canada, information pertaining to Product Service
Bulletins and. Indexes can
be obtained by writing to:
General Motors of Canada Limited Service Publications Department
1908 Colonel Sam Dr.
Oshawa,’Ontario LlH
8P7
Buick regularly sends its dea1,ers. useful service bulletins
about Buick products. Buick monitors product
performance
in the field. We then prepare bulletins for
servicing our products better.
Now, you can get these
bulletins
too.
Bulletins cover variQus subjects. Some pertain to the
proper use and care of your vehicle; Same describe
costly repairs. Others describe inexpensive repairs which,
if done on time with the latest parts, may avoid
future costly repairs. Some bulletins tell a technician
how to repair a new or unexpected condition. Others
describe a quicker way to- fix
your vehicle.’ They can
help
a technician service your vehicle better.
Most bulletins apply to conditions affecting
a small
number
of cars or trucks..Your Buick dealer or a
qyalified technician may
have to determine i.f a .specific
bulletin applies to your vehicle.
You can subscribe
to all Buick bulletins. This way you’ll .
get them as they come out. You can wait a while and get
an index to the bulletins. You
can also get individual
bulletins. However, you’ll need the index to identify
them.
322

Acc (Ignition Key Position) ........................ 74
Adding Brake Fluid
.................................. 262
Coolant
.............................. 2 19.222. 257
Electrical Equipment
.......................... 287
Engineoil
................................... 249
Power Steering Fluid
.......................... 260
Transmission Fluid ............................ 254
Windshield Washer Fluid
....................... 261
Additives, Engine Oil
............................. 251
Adjustment, Brake
............................... 169
Adult Safety Belt Usage
............................ 27
AirBag
.......................................... 35
Aircleaner
...................................... 253
Air Conditioner
............................. 127, 132
Air Outlets
..................................... 126
Alcohol, Driving Under the Influence of
.............. 160
Alcohol in Gasoline ..................... ........ 243
Aluminum Wheels, Cleaning
....................... 284
AM Radio Reception
............................. 134
AM Stereo Radio Reception
....................... 135
Antenna Care
................................... 149
Antifreeze
...................................... 257
Antilock Brakes
.................................. 166
Antilock Brake System Warning Light
........... 121, 166
...
Part 9 Index
Anti-Theft Tips ................................... 72
Anti-Theft Feature. Delco
LOC I1 ..................... 147
Appearance Care
................................ 249
Appearance Care and Materials
..................... 286
Armrest. Storage
................................ 112
Ashtrays ........................................ 110
Assist Handles
.............................. 102. 113
Audio Systems
.................................. 134
Automatic Air Conditioning System
................. 129
Automatic Door Locks
............................. 64
Automatic Overdrive
.............................. 79
Automatic Pull-Down Feature
....................... 65
Automatic Transmission
........................... 78
Automatic Transmission Fluid
...................... 254
Automatic Transmission Torque Lock
................ 190
Axle. Rear
..................................... 256
Baby. Holding a
................................. 46
Battery
........................................ 264
Battery Cables. Starting With
....................... 206
Battery Warning Light ............................ 118
Blizzard. If You’re Caught In A
..................... 193
BloodAlcoholLevel
............................. 162
“Blowout”. Tire
................................. 224