GMC 2007 Sierra - Manual (Page 619)

Scheduled Maintenance
Service Maintenance I Maintenance II
Change engine oil and filter. See Engine Oil (Gasoline Engine) on page 486.
Reset oil life system. See Engine Oil Life System (Gasoline Engine) on
page 489. An Emission Control Service.
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Allison Transmission ® only: Replace external transmission filter at the first
maintenance service performed on the vehicle.
Lubricate chassis components. See footnote #.
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Visually check for any leaks or damage. See footnote (j).
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Inspect engine air cleaner filter or change indicator (if equipped). If necessary,
replace filter. See Engine Air Cleaner/Filter (Gasoline Engines) on page 491.
See footnote (p).
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Rotate tires and check inflation pressures and wear. See Tire Inspection and
Rotation on page 553 and “Tire Wear Inspection” in At Least Once a Month on
page 626.
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Inspect brake system. See footnote (a).
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Check engine coolant and windshield washer fluid levels and add fluid as
needed.
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Perform any needed additional services. See “Additional Required Services” in
this section.
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