Page 405 of 455

6-60
Finish Damage
Any stone chips, fractures or deep scratches in the finish
should be repaired right away. Bare metal will corrode
quickly and may develop into a major repair expense.
Minor chips and scratches can be repaired with touch
-up
materials available from your dealer or other service
outlets. Larger areas of finish damage can be corrected
in your dealer's body and paint shop.
Underbody Maintenance
Chemicals used for ice and snow removal and dust
control can collect on the underbody. If these are not
removed, accelerated corrosion (rust) can occur on
the underbody parts such as fuel lines, frame, floor
pan and exhaust system even though they have
corrosion protection.At least every spring, flush these materials from the
underbody with plain water. Clean any areas where mud
and other debris can collect. Dirt packed in closed areas
of the frame should be loosened before being flushed.
Your dealer or an underbody car washing system can
do this for you.
Chemical Paint Spotting
Some weather and atmospheric conditions can create a
chemical fallout. Airborne pollutants can fall upon and
attack painted surfaces on your vehicle. This damage
can take two forms: blotchy, ringlet
-shaped
discolorations, and small irregular dark spots etched into
the paint surface.
Although no defect in the paint job causes this, Buick
will repair, at no charge to the owner, the surfaces of
new vehicles damaged by this fallout condition within
12 months or 12,000 miles (20 000 km) of purchase,
whichever occurs first.
Page 412 of 455
6-67
Underhood Fuse Block
This fuse block is located in the engine compartment, on
top of the windshield washer fluid reservoir.
See ªEngine Compartment Overviewº in the Index for
more information on location.
The fuses marked spare are available if a replacement
fuse is needed.
To remove the cover, press the two tabs in and lift up
the cover.Mini Fuses Usage
1 Fuel Pump
2 Air Conditioning
Compressor Clutch
3 Horn
4 Engine Controls
- Emissions
and Sensors
5 Power Control Module
(PCM)
- Battery Power
Page 414 of 455
6-69
J-Style Fuse Usage
38 Spare
39 Engine Cooling Fan
40 Engine Cooling Fan
41 Main Battery Fuse for Retained
Accessory Power Relay and
Accessory Relay
42 Main Battery Fuse for Heated
Seats, Air
43 Spare
44 Spare
45 Main Battery Fuse for Power
Outlets, Level Control,
Power Seats and Mirrors and
Body computer
46 Spare
47 Main Battery Fuse for HVAC
Blower and Ignition 3 relay
48 Main Battery fuse for Ignition
Switch, Radio, Heads
-Up Display,
Remote Keyless Entry (RKE),
Instrument Cluster, Air
Conditioning and Body ComputerMaxi Breaker Usage
49 Spare
Micro Relay Usage
50 Horn
51 Fuel Pump
52 Air Conditioning Clutch
53 Daytime Running Lamps (DRL)
54 Low
-Beam Headlamps
55 Parking Lamps
56 High
-Beam Headlamps
57 Fog Lamps
Mini Relay Usage
58 Starter Relay
59 Cooling Fan
60 Ignition 1 Relay
61 Cooling Fan
62 Cooling Fan
63 Air Pump
Page 416 of 455

6-71
Capacities and Specifications
The following approximate capacities are given in
English and metric conversions.
Please refer to ªRecommended Fluids and Lubricantsº
in the Index for more information.
Automatic Transaxle
Pan Removal
and Replacement 7.4 quarts (7.0 L). . . . . . . . . . . . .
Complete Overhaul 10.0 quarts (9.5 L). . . . . . . . . .
AWD Automatic Transaxle
Pan Removal
and Replacement 8.7 quarts (8.3 L). . . . . . . . . . . . .
Complete Overhaul 10.8 quarts (10.3 L). . . . . . . . . Rear Axle
Differential Capacity 2.1 quarts (1.9 L). . . . . . . . . .
Transfer Case Fluid Capacity 0.6 pints (290 ml). . . . .
Cooling System With A/C 9.6 quarts (9.1 L). . . . . . .
Engine Oil with Filter 4.5 quarts (4.3 L). . . . . . . . . .
Fuel Capacity 18.5 U.S. gallons (70.0 L). . . . . . . . . .
Wheel Nut Torque 100 lb
-ft (140 N´m) . . . . . . . . . . .
All capacities are approximate. When adding, be sure
to fill to the appropriate level, as recommended in
this manual.
Engine Specifications
Engine VIN Code E. . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Type V6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Firing Order 1
-2-3-4-5-6 . . . . . . . . . . . . . . . . . . . . . .
Page 421 of 455

7-4
Part A: Scheduled
Maintenance Services
Using Your Maintenance Schedule
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
vehicles, maintenance needs vary. You may need more
frequent checks and replacements. So please read the
following and note how you drive. If you have any
questions on how to keep your vehicle in good
condition, see your dealer.This part tells you the maintenance services you should
have done and when you should schedule them. If you
go to your dealer for your service needs, you'll know
that GM
-trained and supported service people will
perform the work using genuine GM parts.
The proper fluids and lubricants to use are listed in
Part 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.
This schedule is for vehicles that:
carry passengers and cargo within recommended
limits. You will find these limits on your vehicle's
Certification/Tire label. See ªLoading Your Vehicleº
in the Index.
are driven on reasonable road surfaces within legal
driving limits.
use the recommended fuel. See ªFuelº in the Index.
Page 423 of 455

Scheduled Maintenance
7-6Engine Oil and Chassis Lubrication
Scheduled Maintenance
Change engine oil and filter as indicated by the GM
Oil Life System (or every 12 months, whichever
occurs first). Reset the system. Your vehicle has a
computer system that lets you know when to change the
engine oil and filter. This is based on engine revolutions
and engine temperature, and not on mileage. Based on
driving conditions, the mileage at which an oil change
will be indicated can vary considerably. For the oil life
system to work properly, you must reset the system
every time the oil is changed.When the system has calculated that oil life has been
diminished, it will indicate that an oil change is
necessary. A change engine oil message will come on.
Change your oil as soon as possible within the next two
times you stop for fuel. It is possible that, if you are
driving under the best conditions, the oil life system
may not indicate that an oil change is necessary for over
a year. However, your engine oil and filter must be
changed at least once a year and at this time the system
must be reset. It is also important to check your oil
regularly and keep it at the proper level.
If the system is ever reset accidentally, you must change
your oil at 3,000 miles (5 000 km) since your last oil
change. Remember to reset the oil life system whenever
the oil is changed. See ªOil Life Systemº in the Index
for information on resetting the system.
An Emission Control Service.
Lubricate chassis components with each engine oil and
filter change. Lubricate the suspension, steering linkage,
transaxle shift linkage and the underbody contact points
and linkage.
Page 433 of 455

7-16
Part B: Owner Checks and Services
Listed in this part are owner checks and services which
should be performed at the intervals specified to help
ensure the safety, dependability and emission control
performance of your vehicle.
Be sure any necessary repairs are completed at once.
Whenever any fluids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown
in Part D.
At Each Fuel Fill
It is important for you or a service station attendant to
perform these underhood checks at each fuel fill.
Engine Oil Level Check
Check the engine oil level and add the proper oil
if necessary. See ªEngine Oilº in the Index for
further details.Engine Coolant Level Check
Check the engine coolant level and add DEX
-COOL
coolant mixture if necessary. See ªEngine Coolantº in
the Index for further details.
Windshield Washer Fluid Level Check
Check the windshield washer fluid level in the
windshield washer tank and add the proper fluid if
necessary. See ªWindshield Washer Fluidº in the Index
for further details.
At Least Once a Month
Tire Inflation Check
Make sure tires are inflated to the correct pressures.
Don't forget to check your spare tire. See ªTiresº in the
Index for further details.
Cassette Deck Service
Clean cassette deck. Cleaning should be done every
50 hours of tape play. See ªAudio Systemsº in the
Index for further details.
Page 438 of 455

7-21
Part C: Periodic
Maintenance Inspections
Listed in this part are inspections and services which
should be performed at least twice a year (for instance,
each spring and fall). You should let your dealer's
service department or other qualified service center
do these jobs. Make sure any necessary repairs are
completed at once.
Proper procedures to perform these services may be
found in a service manual. See ªService and Owner
Publicationsº in the Index.
Steering, Suspension and Front Drive Axle
Boot and Seal Inspection
Inspect the front and rear suspension and steering
system for damaged, loose or missing parts, signs of
wear or lack of lubrication. Inspect the power steering
lines and hoses for proper hook
-up, binding, leaks,
cracks, chafing, etc. Clean and then inspect the
drive axle boot seals for damage, tears or leakage.
Replace seals if necessary.
Exhaust System Inspection
Inspect the complete exhaust system. Inspect the body
near the exhaust system. Look for broken, damaged,
missing or out
-of-position parts as well as open seams,
holes, loose connections or other conditions which could
cause a heat build
-up in the floor pan or could let
exhaust fumes into the vehicle. See ªEngine Exhaustº in
the Index.
Fuel System Inspection
Inspect the complete fuel system for damage or leaks.
Engine Cooling System Inspection
Inspect the hoses and have them replaced if they are
cracked, swollen or deteriorated. Inspect all pipes,
fittings and clamps; replace as needed. Clean the outside
of the radiator and air conditioning condenser. To help
ensure proper operation, a pressure test of the cooling
system and pressure cap is recommended at least once
a year.