GMC Yukon 2007 Owner's Manual page 580

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.
580
Scheduled Maintenance (cont'd)
Service Maintenance I Maintenance II
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