1993 BUICK LESABRE maintenance schedule

I IMPORTANT:
KEEP ENGINE OIL AT THE PROPER
LEVELANDCHANGEAS RECOMMENDED
1
Protection I
Plan I
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.
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* Your Vehicle and the Environment
Proper vehicle maintenance not only helps to keep your
vehicle in good working condition, but also helps the
environment. All recommended maintenance procedures
are important. Improper vehicle maintenance or the
removal of important components can significantly
affect the quality
of the air we breathe. Improper fluid
levels or even the wrong tire inflation can increase the
level of emissions from your vehicle.
To help protect
our environment, and to help keep your vehicle in good
condition, please maintain your vehicle properly.
How This Part is Organized
The remainder of this part is divided into five sections:
“Section
A: Scheduled Maintenance Services” shows
what
to have done and how often. Some of these
services can be complex,
so unless you are technically
qualified and have the necessary equipment,
you should
let your dealer’s service department or another qualified
service center do these
jobs.
A CAUTION:
1. *
._ 1. c
Performing maintenance work on a vehicle can
be dangerous. In trying to do some jobs, you can
be seriously injured.
Do your own maintenance
work only if you have the required know-how and the proper tools and equipment for the
job. If you
have any doubt, have a qualified technician do
the work.
If you are skilled enough to do some work on your
vehicle, you will probably want to get the service
information
GM publishes. You will find a list of
publications and how to get them in this manual. See
“Service Publications’’ in the Index.
“Section
B: Owner Checks and Services” tells you what
should
be checked whenever you stop for fuel. It also
explains what you can easily do to help keep your
vehicle in good condition.
“Section
C: Periodic Maintenance Inspections” explains
important inspe.ctions that your Buick dealer’s service
department or another qualified service center should
perform.
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- .. ~ .. - .

“Section D: Recommended Fluids and Lubricants” lists
some products GM recommends to help keep your
vehicle properly maintained. These products, or their
equivalents, should be used whether you do the work
yourself or have it done.
“Section
E: Maintenance Record” provides a place for
you to record the maintenance performed on your
vehicle. Whenever any maintenance is performed, be
sure to write it down in this section. This will help
you
determine when your next maintenance should be done.
In addition, it is a good idea to keep your maintenance
receipts. They may be needed to qualify your vehicle for
warranty repairs.
Section A: Scheduled Maintenance
Services
Using Your Maintenance Schedules
This section tells you the maintenance services you
should have done and when you should schedule them.
Your Buick dealer knows your vehicle best and wants
you to be happy with it. 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.
These schedules are for vehicles that:
0 carry passengers and cargo within recommended limits. You will find these limits on your vehicle’s
Tire-Loading Information label. See “Loading Your
Vehicle” in the Index.
0 are driven on reasonable road surfaces within legal
driving limits.
0 use the recommended unleaded fuel. See “Fuel” in
the Index.
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Scheduled Maintenance Services Schedule I
Follow Schedule I if your car is MAINLY driven under one .or more of the following conditions:
When most trips are less than 4 miles (6 kilometers).
When most trips are less than 10 miles (16 kilometers) and outside temperatures remain below freezing.
When most trips include extended idling and/or frequent low-speed operation as in stop-and-go traffic.
Towing a trailer.*?
When operating in dusty areas.
Schedule I should also be followed if the car is used for delivery service, police, taxi or other commercial applications.
I I MILES (000) ~ ~ ~~
TO BE SERVICED
Miles (kilometers) or
Scheduled Mzintenance
48 45 42 39
36
33 30 27
24 21 18 15 12 9 6 3 WHEN TO PERFORM (See Explanation of
~ ~~ ~~
Services Following
Schedules I and
11)
Months, Whichever
Occurs First
Item No.
1. Engine Oil & Oil Filter Every 3 000 mi. (5000 km)
Change* or
3 months.
2. Chassis Lubrication Every
other oil change
3. Throttle Body Mounting At 6 000 mi. (10 000 km)
~~
Bolt Torque*
only
4* Tire & Inspection & then every 15 000 mi. (25 000 At 6 000 mi. ( 10 000 km) and
km)
or as necessary
Rotation
5. Engine
Accessory Drive
Every 30 000 mi.
Belt(s) Inspection* (50 000 km) or 24 months.
5 10
e.
e
e
e
20 25
e.
e
KILOMETERS (000)
30 35
me
e
e
40 45
em
e
50 55
me
e
e
282

TO BE SERVICED
(See Explanation of
Scheduled Maintenance
Months, Whichever Services Following
Miles (kilometers) or
WHEN
TO PERFORM
Schedules I and
IIj
I Itern No.
Occurs First
I
7. Transaxle Service See
Explanation
of Scheduled
Maintenance Service
Following Schedules I and
I1
I 8. Spark~Plug ~
Replacement*
I 9. Wire Spark Inspection”?
10. Air Cleaner Filter
I Replacement*? I
Every 30 000 mi
(50 000 km)
11. Fuel Tank, Cap &
I Lines Inspection
MILES (000)
3
39 36 33
30 27
24 21 18 15 12 9 6
KILOMETERS (000)
50 55
0
0
0
0
0
60 65 70 75 80
The services
shown in this schedule up to 48 000 miles (80 000 km) should be performed after 48 000 miles at the same
intervals.
* An Emission Control Service.
The
U.S. Environmental Protection Agency has determined that the failure to perform this maintenance item will not nullify the emission warranty or limit recall liability prior to the completion of
vehicle useful life. General Motors, however, urges that all recommended maintenance services be performed at the indicated intervals and the maintenance be recorded in “Section EMaintenance
Record”.
283

Scheduled Maintenance Services Schedule I1
Follow Schedule I1 ONLY if none of the driving conditions specified in Schedule I apply.
TO BE SERVICED
(See Explanation of
Scheduled Maintenance
Services Following Schedules
I and 11)
Item No.
1. Engine Oil Change"
Oil Filter Change"
2. Chassis Lubrication
3. Throttle Body Mounting Bolt Torque*
4. Tire & Wheel Inspection & Rotation
5. Engine Accessory Drive Belt(s) Inspection"
6. Cooling System Service*
7. Transaxle Service
WHEN TO PERFORM
Miles (kilometers) or
Months, Whichever
Occurs
First
MILES (000)
KILOMETERS (000)
I' I 12.5 I 25
Every
7 500 mi. (12 500 km) or 12 mos. 1.1.
At first and then every other oil change 1.1 ~~ ~
Every 7 500 mi. (12 500 km) or 12 mos.
I I
At 7 500 mi. (12 500 km) only 1.1
At 7 500 mi. (12 500 km) and then every
15
000 mi. (25 000 km) or as necessary
Every
30 000 mi. (50 000 km) or 24 mos.
H-
See Explanation of Scheduled Maintenance
Services Following Schedules
I and I1 I
284

1 I
TO BE SERVICED
(See Explanation of
Scheduled Maintenance Services Following Schedules
I and II)
Item No.
WHEN TO PERFORM
Miles (kilometers) or
Months, Whichever Occurs First
MILES (000)
7.5 45 37.5 30 22.5 15
KILOMETERS (000)
8. Spark Plug Replacement*
9. Spark Plug Wire Inspection*?
0
0 1 1. Fuel Tank, Cap & Lines Inspection*?
0 Every 30 000 mi. (50 000 km) 10. Air Cleaner Filter Replacement*
0
I
The services shown in this schedule up to 45 000 miles (75 000 km) should be performed after 45 000 miles at the same
intervals.
I
* An Emission Control Service.
The
U.S. Environmental Protection Agency has determined that the failure to perform this maintenance item will not nullify the emission warranty or limit recall liability prior IO the completion of vehicle useful life. General Motors, however, urges that all recommended maintenance services be performed at the indicated intervals and the maintenance be recorded in "Section E:Maintenance
Record".

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.
1. Engine Oil and Filter Change* -- Always use SG
Energy Conserving I1 oils of proper viscosity. The
“SG” designation may be shown alone or in
combination with others, such as “SG/CC”,
“SG/CD” or “SF, SG, CC,” 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. If your vehicle has an Engine Oil Life
Monitor, the monitor will show
you when to change
the oil. See “Engine Oil Life Monitor” in the Index.
2. Chassis Lubrication -- Lubricate suspension and
steering linkage. Lubricate the transaxle shift linkage, and parking brake
cable guides, underbody
contact points and linkage.
3. Throttle Body Mounting Bolt Torque* -- Check
the torque of the mounting bolts and/or nuts.
4. 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.
5. Engine Accessory Drive Belt(s) Inspection --
Inspect the belt(s) for cracks, fraying, wear and
proper tension. Replace as needed.
6. 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.
* An Emission Control Service.
3‘ The U.S. Environmental Protection Agency has determined that the failure to perfonn this maintenance item will not nullify the emission warranty or limit recall liability prior to thecompletion of vehicle
useful life. General Motors, however, urges that all recommended maintenance services be performed at the indicated intervals and the maintenance be recorded in “Section E:Maintenance Record”.
286