Page 257 of 308

Fuse Block
Amp Description
1.
2.
10
10
3. 20
4.
2s
5. IO
6. 15
7. 15
8. 1s
9. 20
10.
1s
11. 5
12. 1s
13. 15 Radio
& Clock, Steering
Wheel Radio Switches.
Headlight Switch, Air Bag Diagnostic Module, ABS
Lamp Driver Module, Daytime Running Lamps
Module (w/DRL), TCC/Brake Switch, Cruise
Control Cut-Out Switch, Instrument Cluster, Chime
Module, Rear Defogger Timer Relay
A/C HI Blower Relay
Wipermasher Switch
Turn Signal Flasher
TCC/Brake Switch, Hazard Flasher
Vanity Mirror, Lights, I/P Compartment Light,
Courtesy Lights, Trunk Courtesy Light,
Dome/Reading Lights, Cigar Lighter.
Air Bag Diagnostic Module
Power Door Locks, Remote Keyless Entry System
Cigar Lighter
Theft Deterrent Decoder Module
Heater, Vent A/C Solenoid Box, A/C LO Blower
Relay
Chime Module, Electronic Brake Control Module.
Theft Deterrent Decoder Module, Radio, Passive
Restraint Timer Relay, Low Oil Level Module
1s.
Amp Description
14. 15 Air Temperature Valve Motors, Instrument Cluster,
Daytime Running Lights Module (w/DRL), HVAC
Control Assembly, Multi-Function Lever, Heated
Oxygen Sensor
#2, Passenger Temperature Control
Electrical Center
#2, ABS Relay
16. 10 Antenna Relay, Outside Mirror Control, Front
Window/Door Lock Switches, Front Door Handle
Switches
17.
Not Used
18. 5 Air Bag Diagnostic Module
5 Electronic Brake Control Module, Underhood
n
CTSY ARBGl DRLKS
@m@
ClLTR VATS HVAC
This fuse panel is inside the
glove
box. Pull the cover
down to access the
fuses.
Some spare fuses and a fuse
puller are included.
255
ProCarManuals.com
Page 259 of 308

15
20
15
IS
1s
' 1s
Electrical Center
Passenger Side - Underhood
Amp Description
Minifuse
1. Not Used
2. Remote Trunk Release
3. Powertrain Control Module (PCM), Fuel
Pump/Oil Pressure Switch, Fuel Pump Relay.
Fan Control
#I Relay
Switch (w/VIN
M only)
(DEGR), Heated Oxygen Sensor,
Fan Control
#2 Relay, A/C Compressor
Relay
(VIN M only)
Relay
(VIN L only)
Crankshaft Position Sensor, Camshaft
Position Sensor
Flow (MAF) Sensor
(VIN L only)
4. Automatic Transaxle, Transaxle Range
5. Generator. Digital Exhaust Recirc'ulation
6. Cruise Control Module. A/C Compressor
7. Fuel Injectors, High Resolution 24X
8. IS Powertrain Control Module (PCM), Mass Air
9. 1s Electronic Ignition (E1)-Control Module
10. 60 I/P Fuse Block, Courtesy Fuse. C/Ltr Fuse.
11. 60 Fdn Control #I Relay
Maxifuse
Elec. Fuse, ACC Fuse
Description
12.
13.
Relay
14.
1s.
16.
17.
18
60 Passenger Side Underhood Electrical Center
and
I/P Fuse Block: Blower Fuse. Stop Fuse.
Door Locks Fuse
Fan Control
#2 Relay and Component
Center: Rear Defog Circuit Breaker, Power
ACC Circuit Breaker 60
Fuel Pump
A/C Compressor
Fan Control
#2 - Secondary Cooling Fan
(Passenger
Side)
Fan Control #I - Primary Cooling Fan
(Driver Side)
Not Used
~~~~~ ~
[I [I
Erlmm
~~~
TCC ENG EMlS CRUISE
F/INJN
ECM IGN ELEK IGN
257
ProCarManuals.com
Page 263 of 308

Capacities and Specifications
Engine Code L (L27) 3.8L V-6 SF1
Belt Tensions -
Automatically controlled by an idler pulley.
Tension adjustment should never be necessary.
Cooling System Capacity -
11.1 quartsl10.5 liters
Crankcase Capacity -
Oil change without filter change -
4 quarts/3.8 liters
Oil change with filter change -
4.5 quarts/4.25 liters
*Air Conditioning Capacity -
R134A 2.0 lbs. (0.9 kilograms)
Fuel Tank Capacity -
16.5 gallons/62.7 liters
Transaxle -
Automatic Overdrive - Drain & Refi 11 -
6 quarts/5.7 liters
Maintenance Item Part Numbers -
Air Filter - A925C
Fuel Filter
- GF579
Oil Filter
- PF47
PCV Valve
- CV892C
Radiator Cap
- RC27
Spark Plug
- 4 1-60 1, GAP 0.060”
* 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 Buick dealer. For additional
information, see your “Warranty and Owner Assistance Information” booklet.
261
ProCarManuals.com
Page 264 of 308

Capacities and Specifications
Engine Code M (LS2) 3.1L V-6 MFI
Belt Tensions -
Automatically controlled by an idler pulley.
Tension adjustment should never be necessary.
Cooling System Capacity -
11.8 quartsll0.7 liters
Crankcase Capacity -
Oil change w/o filter change -
4 quarts/3.8 liters
Oil change with filter change
-
4.5 quarts/4.25 liters
*Air Conditioning Capacity -
R134A - 2.0 lbs. (0.9 kilograms)
Fuel Tank Capacity -
16.5 gallons/62.7 liters
Transaxle -
Automatic Overdrive - Drain & Refill -
6 quarts/5.7 liters
Maintenance Item Part Numbers -
Air Filter - A 1 129C
Fuel Filter - GF48 1
Oil Filter - PF5 1
PCV Valve - CV892C
Radiator Cap
- RC27
Spark Plug
- R44LTS, GAP 0.045”
* 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 Buick dealer. For additional
information, see your “Warranty and Owner Assistance Information” booklet.
262
ProCarManuals.com
Page 266 of 308

I
IMPORTANT:
KEEP ENGINE OIL
AT THE PROPER
LEVEL AND CHANGE AS
RECOMMENDED
Protection
Plan
Have you purchased the GM Protection Plan? The
Plan supplements
your new vehicle warranties. See
your Buick dealer for details.
Introduction
A Word About Maintenance
We at General Motors want to help you keep your
vehicle
in good working condition. But we don’t know
exactly how you’ll drive it. You may drive very short
distances only a few times a week. Or you may drive
long distances all the time in very hot, dusty weather.
You may use your vehicle in making deliveries. Or you
may drive
it to work, to do errands or in many other
ways.
Because of all the different ways people use their
GM
vehicles, maintenance needs vary. You may even need
more frequent checks and replacements than you will
find
in the schedules in this part. So please read this part
and note how you drive. If you have any questions on
how-to keep your vehicle
in good condition, see your
Buick dealer, the place many
GM owners choose to
have their maintenance work done. Your dealer can be
relied upon to use proper parts and practices.
264
ProCarManuals.com
Page 270 of 308
Scheduled Maintenance Services Schedule I
Follow Schedule I if your car is MAINLY driven under one or more of the following conditions:
0 When most trips are less than 4 miles (6 kilometers).
0 When most trips are less than 10 miles (16 kilometers) and outside temperatures remain below freezing.
0 When most trips include extended idling and/or frequent low-speed operation as in stop-and-go traffic.
0 Towing a trailer."? '
0 When operating in dusty areas.
I
Schedule I should also be followed if the car is used for delivery service, police, taxi or other commercial applications.
TO BE SERVICED
(See Explanation of
Scheduled Maintenance
Services Following Schedules
I and 11)
Item No.
1. Engine Oil & Oil Filter
Change"
2. Chassis Lubrication
3. Tire & Wheel Inspection &
Rotation
4. Engine Accessory Drive
Belt(s) Inspection*
5. Cooling System Service*
268
ProCarManuals.com
Page 272 of 308
Scheduled Maintenance Services Schedule I1
I Follow Schedule II ONLY if none of the driving conditions specified in Schedule I apply. I
TO BE SERVICED
(See Explanation of
Scheduled Maintenance
Services Following
Schedules
I and IIj
Item No.
1. Engine Oil Change*
Oil Filter Change*
2. Chassis Lubrication ,_ . .
I 3. Tire & Wheel Inspection & Rotation
I MILES /OOO)
WHEN TO PERFORM
Miles (kilometers) or ,Months, Whichever
I Occurs First
12.5
Every 7 500 mi. (12 500 km) or 12 mos. a
~ At first and then every other oil change a
1 Every 7 500 mi. (12 500 km) or 12 mos. 0
I
At 7 500 mi. (12 500 km) and then every
15 000 mi. (25 000 km) or as necessary
4. Engine Accessory Drive Belt(s) Inspection*
5. Cooling System Service* Every 30
000 mi. (50 000 km) or 24 mos.
KILOMETERS (000)
270
ProCarManuals.com
Page 274 of 308

Explanation of Scheduled Maintenance
Services
Below are explanations of the services listed in Schedule
I and Schedule 11.
The proper fluids and lubricants to use are listed
in
Section D. Make sure whoever services your vehicle uses
these. All
parts should be replaced and all necessary
repairs done before you or anyone else drives the vehicle.
NOTE: To determine your engine’s displacement and
code, see “Engine Identification”
in the Index.
1.
Engine Oil and Filter Change* -- Always use SH or
SG Energy Conserving I1 oils of proper viscosity. The
“SH” or “SG” designation may be shown alone or in
combination with others, such as “SH/CD,” “SH, SG,
CD,” “SG/CD” etc.
To determine the preferred
viscosity for your vehicle’s engine (e.g., SAE 5W-30-
or SAE 10W-30), see “Engine Oil” in the Index.
2. Chassis Lubrication -- Lubricate the transaxle shift
linkage, parking brake cable guides, underbody
contact points and linkage. If your vehicle is
equipped with grease fittings, lubricate the
suspension and steering linkage. 3.
4.
5.
Tire
and Wheel Rotation and Inspection -- For
proper wear and maximum tire life, rotate your tires
following the instructions
in this manual. See “Tires,
Inspection
& Rotation” in the Index. Check the tires
for uneven wear or damage. If you see irregular or
premature wear, check the wheel alignment. Check
for damaged wheels also.
Engine Accessory Drive Belt(s) Inspection -- Inspect
the belt(s) for cracks, fraying, wear and proper tension.
Replace as needed. (Belts can have small cracks
in
individual ribs without affecting performance).
Cooling System Service* -- Drain, flush and refill
the system
with new or approved recycled coolant
conforming to GM Specification
1825M. Keep
coolant at the proper mixture as specified. See
“Coolant”
in the Index. This provides proper freeze
protection, corrosion inhibitor level and engine
operating temperature.
Inspect hoses and replace if they are cracked, swollen
or deteriorated. Tighten screw-type hose clamps.
Clean the outside of the radiator and air conditioning
condenser. Wash the pressure cap and neck.
272
ProCarManuals.com