Chevrolet TrailBlazer 2007 Owner's Manual page 519

Change engine oil and filter. See Engine Oil on page 398. Reset oil life system.
See Engine Oil Life System on page 404. An Emission Control Service.
Visually check for any leaks or damage. See footnote (j).
Inspect engine air cleaner filter. If necessary, replace filter. See Engine Air
Cleaner/Filter on page 406. See footnote (k).
Rotate tires and check inflation pressures and wear. See Tire Inspection and
Rotation on page 460 and "Tire Wear Inspection" in At Least Once a Month
on page 524.
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.
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 transmission fluid level and add fluid as needed. See footnote (g).
Scheduled Maintenance
Service Maintenance I Maintenance II
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