Chevrolet Silverado Classic 2007 Owner's Manual page 575

If the vehicle has a center cap with wheel nut
caps, the wheel nut caps are designed to
stay with the center cap after they are
loosened. Remove the entire center cap.
1. If your vehicle has
wheel nut caps,
loosen them
by turning the wheel
wrench
counterclockwise.
If the wheel has a smooth center cap, place
the chisel end of the wheel wrench in the
slot on the wheel, and gently pry it out.
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