Pontiac Grand Prix 2007 Owner's Manual page 481

Generally, it is recommended that your first
service be Maintenance I, your second service be
Maintenance II, and that you alternate
Maintenance I and Maintenance II thereafter.
However, in some cases, Maintenance II may be
required more often.
Maintenance I — Use Maintenance I if the
CHANGE OIL SOON message comes on within
10 months since the vehicle was purchased
or Maintenance II was performed.
Change engine oil and filter. See Engine Oil on page 356. Reset oil life system.
See Engine Oil Life System on page 359. An Emission Control Service.
Visually check for any leaks or damage. See footnote (k).
Inspect engine air cleaner filter. If necessary, replace filter. See Engine Air
Cleaner/Filter on page 361. See footnote (m).
Rotate tires and check inflation pressures and wear. See Tire Inspection and
Rotation on page 420 and "Tire Wear Inspection" in At Least Once a Month on
page 487.
Inspect brake system. See footnote (a).
Check engine coolant and windshield washer fluid levels and add fluid as
needed.
Perform any needed additional services. See "Additional Required Services" in
this section.
Maintenance II — Use Maintenance II if the
previous service performed was Maintenance I.
Always use Maintenance II whenever the message
comes on 10 months or more since the last
service or if the message has not come on at all
for one year.
Scheduled Maintenance
Service Maintenance I Maintenance II
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