replacing rear brake pads on 2002 Buick LeSabre

There is only one bolt on the caliper to remove. The other pin is not a bolt. Is this model made such that once the removable bolt is removed that the caliper can then be tilted to remove the pads? The other question I have is,is the piston the type that can be compressed using a C clamp or is it the screw type needing a special tool? Thanks for you help

Asked by for the 2002 Buick LeSabre
here a repair guide for your buick and looks like its the piston style caliper
1 more answer
Remove the lower bolt, rotate the caliper upward, take out pads etc, rotate down,
grease caliper bolt with high temp silicon and reinstall.