2005 BUICK CENTURY maintenance

Scheduled Maintenance
Service MaintenanceIMaintenanceII
Change engine oil and lter. SeeEngine Oil on page 5-13. Reset oil life system.
SeeEngine Oil Life System on page 5-16.An Emission Control Service.••
Visually check for any leaks or damage.See footnote (k).••
Inspect engine air cleaner lter. If necessary, replace lter. SeeEngine Air
Cleaner/Filter on page 5-18.An Emission Control Service. See footnote †.••
Rotate tires and check ination pressures and wear. SeeTires on page 5-53.••
Inspect brake system.See footnote (a).••
Check engine coolant and windshield washer uid levels and add uid
as needed.••
Perform any needed additional services. See “Additional Required Services”
in this section.••
Inspect suspension and steering components.See footnote (b).•
Inspect engine cooling system.See footnote (c).•
Inspect wiper blades.See footnote (d).•
Inspect restraint system components.See footnote (e).•
Lubricate body components.See footnote (f).•
Check transaxle uid level and add uid as needed.•
Replace passenger compartment air lter.See footnote (g).•
Inspect throttle system.See footnote (j).•
6-5

Additional Required Services
The following services should be performed at the rst maintenance service (IorII) after the indicated miles
(kilometers) shown for each item.
Additional Required Services
Service and Miles (Kilometers)25,000
(41 500)50,000
(83 000)75,000
(125 000)100,000
(166 000)125,000
(207 500)150,000
(240 000)
Inspect fuel system for damage
or leaks.••••••
Inspect exhaust system for loose or
damaged components.••••••
Replace engine air cleaner lter.
SeeEngine Air Cleaner/Filter
on page 5-18.An Emission
Control Service.••••••
Change automatic transaxle uid
and lter (severe service).
See footnote (h).•••
Change automatic transaxle uid
and lter (normal service).•
6-6

Maintenance Footnotes
†The U.S. Environmental Protection Agency or the
California Air Resources Board 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 the vehicle’s useful life. We, however,
urge that all recommended maintenance services
be performed at the indicated intervals and the
maintenance be recorded.
(a)Visually inspect brake lines and hoses for proper
hook-up, binding, leaks, cracks, chang, etc. Inspect
disc brake pads for wear and rotors for surface
condition. Inspect other brake parts, including calipers,
parking brake, etc.
(b)Visually inspect front and rear suspension and
steering system for damaged, loose or missing parts
or signs of wear. Inspect power steering lines and hoses
for proper hook-up, binding, leaks, cracks, chang, etc.
(c)Visually inspect hoses and have them replaced
if they are cracked, swollen or deteriorated. Inspect all
pipes, ttings and clamps; replace with genuine
GM parts as needed. To help ensure proper operation,
a pressure test of the cooling system and pressure
cap and cleaning the outside of the radiator and
air conditioning condenser is recommended at least
once a year.(d)Visually inspect wiper blades for wear or cracking.
Replace blade inserts that appear worn or damaged
or that streak or miss areas of the windshield.
(e)Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors and anchorages
are working properly. Look for any other loose or
damaged safety belt system parts. If you see anything
that might keep a safety belt system from doing its
job, have it repaired. Have any torn or frayed safety belts
replaced. Also look for any opened or broken air bag
coverings, and have them repaired or replaced. (The air
bag system does not need regular maintenance.)
(f)Lubricate all key lock cylinders. Lubricate all hinges
and latches, including those for the body doors,
hood, secondary latch, pivots, spring anchor, release
pawl, rear compartment, glove box door and console
door. More frequent lubrication may be required
when exposed to a corrosive environment. Applying
silicone grease on weatherstrips with a clean cloth
will make them last longer, seal better and not stick
or squeak.
(g)If you drive regularly under dusty conditions,
the lter may require replacement more often.
6-8

Normal Maintenance Replacement Parts
Replacement parts identied below by name, part number, or specication can be obtained from your GM dealer.
Normal Maintenance Replacement Parts
Part GM Part NumberACDelco®Part
Number
Engine Air Cleaner/Filter 24508572 A1614C
Engine Oil Filter 25010792 PF47
Passenger Compartment Air Filter 10406026 —
Spark Plugs 12568387 41–101
Windshield Wiper Blades (Hook Type)
22.0 inches (56.0 cm)22143943 8-2221
6-14

Maintenance Record
After the scheduled services are performed, record the date, odometer reading, who performed the service and the
type of services performed in the boxes provided. SeeMaintenance Requirements on page 6-2in this section.
Any additional information fromOwner Checks and Services on page 6-9can be added on the following record pages.
Also, you should retain all maintenance receipts.
Maintenance Record
DateOdometer
ReadingServiced ByMaintenanceIor
MaintenanceIIServices Performed
6-16

Maintenance Record (cont’d)
DateOdometer
ReadingServiced ByMaintenanceIor
MaintenanceIIServices Performed
6-17

Maintenance Record (cont’d)
DateOdometer
ReadingServiced ByMaintenanceIor
MaintenanceIIServices Performed
6-18

Online Owner Center
The Owner Center is a resource for your GM ownership
needs. Specic vehicle information can be found in
one place.
The Owner Center allows you to:
Get e-mail service reminders.
Access information about your specic vehicle,
including tips and videos and an electronic
version of this owner’s manual. (United States only)
Keep track of your vehicle’s service history and
maintenance schedule.
Find GM dealers for service nationwide.
Receive special promotions and privileges only
available to members. (United States only)
Refer to the web for updated information.
To register your vehicle, visit www.MyGMLink.com.
(United States) or My GM Canada within
www.gmcanada.com (Canada).
Customer Assistance for Text
Telephone (TTY) Users
To assist customers who are deaf, hard of hearing, or
speech-impaired and who use Text Telephones (TTYs),
Buick has TTY equipment available at its Customer
Assistance Center. Any TTY user can communicate
with Buick by dialing: 1-800-83-BUICK. TTY users
in Canada can dial 1-800-263-3830.
Customer Assistance Offices
Buick encourages customers to call the toll-free number
for assistance. If a U.S. customer wishes to write to
Buick, the letter should be addressed to Buick’s
Customer Assistance Center.
7-4