Caliper/Knuckle Maintenance Inspection
WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
Courtesy of GENERAL MOTORS CORP.
If the vehicle is operated in a highly corrosive environment, the vehicle may require additional brake service. As necessary, caliper pins and knuckle brake pad abutments should be lubricated at every other tire rotation.