wheel BUICK CENTURY 1999 Workshop Manual

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6-49
NOTICE:
The wrong wheel can also cause problems with
bearing life, brake cooling, speedometer or
odometer calibration, headlamp aim, bumper
height, vehicle ground clearance and tire or tire
chain clearance to the body and chassis.
See ªChanging a Flat Tireº in the Index for
more information.
Used Replacement Wheels
CAUTION:
Putting a used wheel on your vehicle is
dangerous. You can't know how it's been used or
how far it's been driven. It could fail suddenly
and cause an accident. If you have to replace a
wheel, use a new GM original equipment wheel.
Tire Chains
NOTICE:
Use tire chains only where legal and only when
you must. Use only SAE Class ªSº 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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6-55
Cleaning Aluminum Wheels
(If Equipped)
Keep your wheels clean using a soft clean cloth with
mild soap and water. Rinse with clean water. After
rinsing thoroughly, dry with a soft clean towel. A wax
may then be applied.
The surface of these wheels is similar to the painted
surface of your vehicle. Don't use strong soaps,
chemicals, abrasive polishes, abrasive cleaners, cleaners
with acid or abrasive cleaning brushes on them because
you could damage the surface. Do not use chrome polish
on any wheels other than chrome
-plated wheels.
Don't take your vehicle through an automatic car wash
that has silicon carbide tire cleaning brushes. These
brushes can also damage the surface of these wheels.
Cleaning Tires
To clean your tires, use a stiff brush with a tire cleaner.
NOTICE:
When applying a tire dressing always take care to
wipe off any overspray or splash from all painted
surfaces on the body or wheels of the vehicle.
Petroleum
-based products may damage the paint
finish and tires.
Sheet Metal Damage
If your vehicle is damaged and requires sheet metal
repair or replacement, make sure the body repair shop
applies anti
-corrosion material to the parts repaired or
replaced to restore corrosion protection.

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6-57
GM Vehicle Care/Appearance Materials
PART NUMBERSIZEDESCRIPTIONUSAGE
99495423 in. x 25 in.Polishing Cloth ± Wax TreatedExterior polishing cloth
105017216 oz. (0.473 L)Tar and Road Oil RemoverRemoves tar, road oil and asphalt
105017316 oz. (0.473 L)Chrome Cleaner and PolishUse on chrome, stainless steel, nickel, copper and brass
105017416 oz. (0.473 L)White Sidewall Tire CleanerRemoves soil and black marks from whitewalls
105021432 oz. (0.946 L)Vinyl CleanerCleans vinyl tops, upholstery and convertible tops
105042723 oz. (0.680 L)Glass CleanerRemoves dirt, grime, smoke and fingerprints
1052918**8 oz. (0.237 L)Armor All
ProtectantProtects leather, wood, acrylics, Plexiglas
, plastic,
rubber and vinyl
105292516 oz. (0.473 L)Multi-Purpose Interior
CleanerCleans carpets, seats, interior trim, door panels
and floor mats
105292916 oz. (0.473 L)Wheel CleanerSpray on and rinse with water
10529308 oz. (0.237 L)Capture Dry Spot RemoverAttracts, absorbs and removes soils on fabric
123457212.5 sq. ft.Synthetic ChamoisShines vehicle without scratching
1234572512 oz. (0.354 L)Silicone Tire ShineSpray on tire shine
12377964*16 oz. (0.473 L)Finish EnhancerRemoves dust, fingerprints and surface contaminants
12377966*16 oz. (0.473 L)Cleaner WaxRemoves light scratches and oxidation and protects finish
12377984*16 oz. (0.473 L)Surface CleanerRemoves contaminants, blemishes and swirl marks
See your General Motors Parts Department for these products. * For exterior use only.
See ªRecommended Fluids and Lubricantsº in the Index. ** Not recommended for use on instrument panels.

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6-61
Fuse Description
24 Stoplamps
26 Parking Lamps
27 Auxiliary Power Connection
(Power Drop)
-- Hot in ACC and Run
28 Crank Signal
-- Body Control Module,
Cluster, Powertrain Control Modules
29 Ignition Signal
-- HVAC Control Head
30 Brake Transmission Shift Interlock (BTSI)
31 Air Bag
32 Body Control Module
33 Hazard Flashers
34 Not UsedFuse Description
36 Ignition Signal
-- Hot in ACC and
Run
-- Body Control Module
38 Low Blower
39 Anti
-Lock Brakes
40 Turn Signals
41 Radio, HVAC Head, Remote Keyless
Entry, Cluster
42 High Blower
43 Not Used
44 Audio Steering Wheel Controls
45 Wipers

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6-62
Underhood Electrical Center -- Passenger's Side
Some fuses and relays are located in the underhood
electrical center on the passenger's side of the
engine compartment.Fuse Description
1 ABS
2 Starter Solenoid
3 Power Seats, Rear Defog
4 High Blower, Hazard Flasher,
Stoplamps, Power Mirror, Door Locks
5 Ignition Switch, BTSI, Stoplamps,
ABS, Turn Signals, Cluster, Air Bag,
DRL Module
6 Cooling Fan
7 Interior Lamps, Retained Accessory
Power, Keyless Entry, Data Link, HVAC
Head, Cluster, Radio, AUX Power
(Power Drop), Cigarette Lighter
8 Ignition Switch, Wipers, Radio, Steering
Wheel Controls, Body Control Module,
AUX Power (Power Drop), Power
Windows, Sunroof, HVAC Controls,
DRL, Rear Defog Relay

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6-64
Replacement Bulbs
Exterior Lamps Bulb Number
Back
-up 1156. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Center High
-Mounted Stop 3155. . . . . . . . . . . . . . .
Front Parking/Turn Signal 4157NAK. . . . . . . . . . .
Headlamp, High Beam 9005. . . . . . . . . . . . . . . . . .
Headlamp, Low Beam 9006. . . . . . . . . . . . . . . . . . .
Stop/Tail/Turn Signal 3057. . . . . . . . . . . . . . . . . . .
Tail (Applique) 194. . . . . . . . . . . . . . . . . . . . . . . . .
Interior Lamps Bulb Number
Dome Lamp 9425542. . . . . . . . . . . . . . . . . . . . . . .
*For service information on these bulbs, contact your
dealer service department.
Capacities and Specifications
4T60E:
Automatic Transaxle
Pan Removal and Replacement 7.0 quarts (6.7 L). . .
After Complete Overhaul 9.6 quarts (9.2 L). . . . . .
* When draining/replacing converter, more fluid will
be needed.
Cooling System Including
Reservoir 11.6 quarts (10.9 L) . . . . . . . . . . . . . . . . .
Refrigerant (R
-134a),
Air Conditioning*1.88 lbs. (0.85 kg) . . . . . . . . . . .
*See ªAir Conditioning Refrigerantsº later in
this section.
Engine Crankcase
Oil and Filter Change 4.5 quarts (4.3 L). . . . . . . . .
Wheel Nut Torque100 lb
-ft (140 N´m) . . . . . . . . . .
Fuel Tank17.5 gallons (66.2 L) . . . . . . . . . . . . . . . . .
*Note: All capacities are approximate. When adding, be
sure to fill to the approximate level, as recommended in
this manual. See ªRecommended Fluids and Lubricantsº
in the Index.

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6-65 Engine Specifications
Type V6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Displacement 191 CID. . . . . . . . . . . . . . . . . . . . . . . .
Firing Order 1
-2-3-4-5-6 . . . . . . . . . . . . . . . . . . . . . .
Thermostat Temperature 195
F (91
C) . . . . . . . . . . .
Horsepower 160 @ 5200. . . . . . . . . . . . . . . . . . . . . . .
Air Conditioning Refrigerants
Not all air conditioning refrigerants are the same. If the
air conditioning system in your vehicle needs
refrigerant, be sure the proper refrigerant is used. If
you're not sure, ask your dealer.
Normal Maintenance
Replacement Parts
Engine/Air Cleaner Filter AC Type A1208C . . . . .
Passenger Compartment Air Filter 10406026 . . . .
Battery AC Type 600 CCA . . . . . . . . . . . . . . . . . . . .
Engine Oil Filter AC Type PF47 . . . . . . . . . . . . . . . PCV Valve AC Type CV892C . . . . . . . . . . . . . . . . . .
Radiator Cap AC Type RC27 . . . . . . . . . . . . . . . . . .
RKE Batteries Type CR2032 (2) or equivalent . . . .
Spark Plugs
3100 (Code M) V6 AC Type 41
-940 . . . . . . . . . . . .
Gap: 0.060 inches (1.52 mm) . . . . . . . . . . . . . . . . . .
Wiper Blade
Type Hook. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Length 22 inches (56 cm). . . . . . . . . . . . . . . . . . . . .
Vehicle Dimensions
Wheelbase 109.0 inches (276.9 cm). . . . . . . . . . . . . .
Tread (Front) 62.0 inches (157.6 cm). . . . . . . . . . . . .
Tread (Rear) 61.1 inches (155.3 cm). . . . . . . . . . . . . .
Overall Length 194.6 inches (494.2 cm). . . . . . . . . . .
Overall Width 72.7 inches (184.5 cm). . . . . . . . . . . . .
Overall Height 56.6 inches (143.8 cm). . . . . . . . . . . .

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7-19 Throttle System Inspection
Inspect the throttle system for interference or binding,
and for damaged or missing parts. Replace parts as
needed. Replace any components that have high effort
or excessive wear. Do not lubricate accelerator and
cruise control cables.
Brake System Inspection
Inspect the complete system. Inspect brake lines and
hoses for proper hook
-up, binding, leaks, cracks,
chafing, etc. Inspect disc brake pads for wear and rotors
for surface condition. Also inspect drum brake linings
for wear and cracks. Inspect other brake parts, including
drums, wheel cylinders, calipers, parking brake, etc.
Check parking brake adjustment. You may need to have
your brakes inspected more often if your driving habits
or conditions result in frequent braking.

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8-5 Canada
General Motors of Canada Limited
Customer Communication Centre, 163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
1-800-263-3777 (English)
1-800-263-7854 (French)
1-800-263-3830 (For Text Telephone devices (TTYs))
Roadside Assistance: 1-800-268-6800
All Overseas Locations
GMODC - Customer Communication Centre
169-007
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
Telephone: 905-644-4112
Fax: 905-644-4866
Caribbean Numbers
1-800-496-9992 (English) Puerto Rico
1-800-496-9993 (Spanish) Puerto Rico
1-800-751-4135 (English) Dominican Republic
1-800-751-4136 (Spanish) Dominican Republic
1-800-496-9994 U.S. Virgin Islands
1-800-389-0009 Bahamas
1-800-534-0122 Bermuda, Barbados, Antigua & B.V.I.If toll free service is not available in the Caribbean,
call Puerto Rico 1-787-763-1315.
GM Mobility Program for Persons
with Disabilities
This program, available to
qualified applicants, can
reimburse you up to $1,000
toward aftermarket driver or
passenger adaptive
equipment you may require
for your vehicle (hand
controls, wheelchair/scooter
lifts, etc.).
This program can also provide you with free resource
information, such as area driver assessment centers and
mobility equipment installers. The program is available
for a limited period of time from the date of vehicle
purchase/lease. See your dealer for more details or call
the GM Mobility Assistance Center at 1
-800-323-9935.
Text telephone (TTY) users, call 1
-800-833-9935.
GM of Canada also has a Mobility Program. Call
1
-800-GM-DRIVE (463-7483) for details. TTY users
call 1
-800-263-3830. When calling from the United
States, please dial 1
-905-644-3063.

9-
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9-1
Section 9 Index
A
dding Equipment to the Outside of Your Vehicle 6-3 . . . . .
Air Bag
How Does it Restrain 1
-24 . . . . . . . . . . . . . . . . . . . . . . . . . .
How it Works 1-22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Location 1-22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Readiness Light 1-21, 2-51 . . . . . . . . . . . . . . . . . . . . . . . . .
Servicing 1-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System 1-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
What Makes it Inflate 1-23 . . . . . . . . . . . . . . . . . . . . . . . . . .
What Will You See After it Inflates 1-24 . . . . . . . . . . . . . . .
When Should it Inflate 1-23 . . . . . . . . . . . . . . . . . . . . . . . . .
Air Conditioning 3-3, 3-6, 3-8 . . . . . . . . . . . . . . . . . . . . . . . .
Air Conditioning Refrigerants 6-65 . . . . . . . . . . . . . . . . . . . . .
Alarm, Instant 2-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alignment and Balance, Tire 6-48 . . . . . . . . . . . . . . . . . . . . . .
Aluminum Wheels, Cleaning 6-55 . . . . . . . . . . . . . . . . . . . . . .
AM-FM Stereo 3-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AM-FM Stereo with Cassette Tape and Compact
Disc Player with Automatic Tone Control 3-21 . . . . . . . . . .
AM-FM Stereo with Cassette Tape Player 3-14 . . . . . . . . . . .
AM-FM Stereo with Cassette Tape Player and
Automatic Tone Control 3-17 . . . . . . . . . . . . . . . . . . . . . . . .
Antenna
Backglass 3
-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diversity 3-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fixed Mast 3-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Antifreeze 6
-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Anti-Lock
Brake System Warning Light 2-53, 4-7 . . . . . . . . . . . . . . . .
Brakes 4-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using 4-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Anti-Theft, Radio 3-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appearance Care 6-50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appearance Care Materials 6-57 . . . . . . . . . . . . . . . . . . . . . . .
Arbitration Program 8-3, 8-4 . . . . . . . . . . . . . . . . . . . . . . . . . .
Armrest, Front Storage 2-44 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Armrest, Rear Storage 2-44 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ashtrays 2-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Astroroof 2-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio Controls, Steering Wheel Touch Control 3-29 . . . . . . .
Audio Equipment, Adding 3-30 . . . . . . . . . . . . . . . . . . . . . . . .
Audio Systems 3-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio Systems, Tips 3-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Auto-Down Window 2-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic
Headlamp Control 2
-39 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overdrive (
)2-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Door Locks 2-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transaxle Check 7-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transaxle Fluid 6-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transaxle Operation 2-20 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transaxle PARK (P) Mechanism Check 7-17 . . . . . . . . . . .