Scheduled Maintenance - Buick 2003 Century Owner's Manual

Scheduled Maintenance
The services shown in this schedule up to 100,000 miles
(166 000 km) should be repeated after 100,000 miles
(166 000 km) at the same intervals for the life of
this vehicle. The services shown at 150,000 miles
(240 000 km) should be repeated at the same interval
after 150,000 miles (240 000 km) for the life of this
vehicle.
See Part 6: Owner Checks and Services on page 6- 10
and Part C: Periodic Maintenance Inspections on
page 6-14.
Footnotes
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The
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E.nvir~r?men!~! Protectim Agmcy
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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
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be reccrece.
@ Whenever the tires are rotated, the Tire Inflation
Monitor System must be reset.
+
A good time to check your brakes is during tire
rotation. See Brake System Inspection on page 6-15.
Engine Oil Scheduled Maintenance
Change engine oil
and
filter as indicated by the
GM Oil Life SystemTM (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.
6-5