cooling BUICK LESABRE 2001 Owner's Guide

6-51
Each new wheel should have the same load-carrying
capacity, diameter, width, offset and be mounted the
same way as the one it replaces.
If you need to replace any of your wheels, wheel bolts
or wheel nuts, replace them only with new GM original
equipment parts. This way, you will be sure to have the
right wheel, wheel bolts and wheel nuts for your vehicle.
CAUTION:
Using the wrong replacement wheels, wheel bolts
or wheel nuts on your vehicle can be dangerous.
It could affect the braking and handling of your
vehicle, make your tires lose air and make you
lose control. You could have a collision in which
you or others could be injured. Always use
the correct wheel, wheel bolts and wheel nuts
for replacement.
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.

6-64
Minifuse Usage
10 Left High
-Beam Headlamp
11 Ignition 1
12 Not Used
13 Transaxle
14 Cruise Control
15 Direct Ignition System
16 Injector Bank #2
17 Not Used
18 Not Used
19 Powertrain Control Module Ignition
20 Oxygen Sensor
21 Injector Bank #1
22 Auxiliary Power
23 Cigarette Lighter
24 Fog Lamps/Daytime Running Lamps
25 Horn
26 Air Conditioner ClutchMicro Relays Usage
27 High-Beam Headlamp
28 Low
-Beam Headlamp
29 Fog Lamps
30 Daytime Running Lamps
31 Horn
32 Air Conditioner Clutch
33 HVAC Solenoid
Mini Relays Usage
34 Accessory
35 Air Pump
36 Starter 1
37 Cooling Fan 2
38 Ignition 1
39 Cooling Fan Series/Parallel
40 Cooling Fan 1

6-65
Maxibreaker Usage
41 Starter
MaxiFuses Usage
42 A.I.R.
43 ABS
44 Air Pump B
45 Air Pump A
46 Cooling Fan 2
47 Cooling Fan 1
Spare Fuses Usage
48 Spare
49 Not Used
50 Not Used
51 Not Used
52 Not Used
53 Fuse PullerRemoving the Rear Seat Cushion
NOTICE:
The battery and main fuse blocks are located
under the rear seat cushion. The battery's
ground terminal and some relay wires are
exposed. To help avoid damage to the battery
and wires, be careful when removing or
reinstalling the seat cushion. Do not remove
covers from covered parts. Do not store anything
under the seat, as objects could touch exposed
wires and cause a short.
To remove the rear seat cushion:
1. Pull up on the front of the cushion to release the
front hooks.
2. Pull the cushion up and out toward the front of
the vehicle.

6-70
Replacement Bulbs
Front Exterior Lamps Bulb Number
Cornering Lamps 3157. . . . . . . . . . . . . . . . . . . . . . . .
Halogen Headlamps
Low Beam 9006. . . . . . . . . . . . . . . . . . . . . . . . . . . .
High Beam 9005. . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking/Turn Signal Lamps 3157. . . . . . . . . . . . . . . .
Rear Exterior Lamps Bulb Number
Back
-Up Lamps 3057. . . . . . . . . . . . . . . . . . . . . . . . .
Tail 194. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tail/Stop/Turn Signal Lamps 3357. . . . . . . . . . . . . . .
For service information on other bulbs, contact your
dealer's service department.
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.
Capacities
Transaxle
Pan Removal
and Replacement 7.4 quarts (7.0 L). . . . . . . . . . .
After Complete Overhaul 10.0 quarts (9.5 L). . . . .
Engine Cooling System 10.0 quarts (9.5 L). . . . . . . .
Crankcase (Engine Oil with
Filter Change) 4.5 quarts (4.3 L). . . . . . . . . . . . . .
Fuel Tank 18.5 U.S. gallons (70.0 L). . . . . . . . . . . . .
Air Conditioning Refrigerant See refrigerant charge. . . .
label under the hood.
All capacities are approximate. When adding, be sure
to fill to the appropriate level, as recommended in this
manual. Recheck fluid level after filling.
Wheel Nut Torque
100 1b-ft (140 N´m)

Scheduled Maintenance
7-6
Short Trip/City Intervals
Every 60,000 Miles (100 000 km): Engine Accessory
Drive Belt Inspection.
Every 100,000 Miles (166 000 km): Spark Plug Wire
Inspection. Spark Plug Replacement. Automatic
Transaxle Service (normal conditions).
Every 150,000 Miles (240 000 km): Cooling System
Service (or every 60 months, whichever occurs first).
These intervals only summarize maintenance services.
Be sure to follow the complete scheduled maintenance
on the following pages.
Long Trip/Highway Definition
Follow this scheduled maintenance only if none of
the conditions from the Short Trip/City Scheduled
Maintenance are true. Do not use this schedule if the
vehicle is used for trailer towing, driven in a dusty area
or used off paved roads. Use the Short Trip/City
schedule for these conditions.
Driving a vehicle with a fully warmed engine
under highway conditions causes engine oil to break
down slower.

Scheduled Maintenance
7-7
Long Trip/Highway Intervals
Every 7,500 Miles (12 500 km): Engine Oil and Filter
Change (or every 12 months, whichever occurs first).
Tire Rotation.
Every 15,000 Miles (25 000 km): Passenger
Compartment Air Filter Replacement (if equipped).
Every 30,000 Miles (50 000 km): Engine Air Cleaner
Filter Replacement.
Every 50,000 Miles (83 000 km): Automatic Transaxle
Service (severe conditions only).
Long Trip/Highway Intervals
Every 60,000 Miles (100 000 km): Engine Accessory
Drive Belt Inspection.
Every 100,000 Miles (166 000 km): Spark Plug Wire
Inspection. Spark Plug Replacement. Automatic
Transaxle Service (normal conditions).
Every 150,000 Miles (240 000 km): Cooling System
Service (or every 60 months, whichever occurs first).
These intervals only summarize maintenance services.
Be sure to follow the complete scheduled maintenance
on the following pages.

Short Trip/City Scheduled Maintenance
7-19
100,000 Miles (166 000 km)

Inspect spark plug wires.
An Emission Control Service.

Replace spark plugs.
An Emission Control Service.

Change automatic transaxle fluid and filter if the vehicle is mainly driven
under one or more of these conditions:
± In heavy city traffic where the outside temperature regularly reaches
90
F (32
C) or higher.
± In hilly or mountainous terrain.
± When doing frequent trailer towing.
± Uses such as found in taxi, police or delivery service.
If you haven't used your vehicle under severe service conditions listed
previously and, therefore, haven't changed your automatic transaxle fluid,
change both the fluid and filter.
150,000 Miles (240 000 km)
Drain, flush and refill cooling system (or every 60 months since last service,
whichever occurs first). See ªEngine Coolantº in the Index for what to use.
Inspect hoses. Clean radiator, condenser, pressure cap and neck. Pressure test
cooling system and pressure cap.
An Emission Control Service.
ACTUAL
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE

Long Trip/Highway Scheduled Maintenance
7-26
100,000 Miles (166 000 km)

Inspect spark plug wires.
An Emission Control Service.

Replace spark plugs.
An Emission Control Service.

Change automatic transaxle fluid and filter if the vehicle is mainly driven
under one or more of these conditions:
± In heavy city traffic where the outside temperature regularly reaches
90
F (32
C) or higher.
± In hilly or mountainous terrain.
± When doing frequent trailer towing.
± Uses such as found in taxi, police or delivery service.
If you haven't used your vehicle under severe service conditions listed
previously and, therefore, haven't changed your automatic transaxle fluid,
change both the fluid and filter.
150,000 Miles (240 000 km)
Drain, flush and refill cooling system (or every 60 months since last service,
whichever occurs first). See ªEngine Coolantº in the Index for what to use.
Inspect hoses. Clean radiator, condenser, pressure cap and neck. Pressure test
the cooling system and pressure cap.
An Emission Control Service.
ACTUAL
SERVICED BY:MILEAGE
DATE
ACTUAL
SERVICED BY:MILEAGE
DATE

7-32 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.
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. Inspect other brake parts,
including calipers, parking brake, etc. You may need to
have your brakes inspected more often if your driving
habits or conditions result in frequent braking.