Chevrolet 2006 Silverado 1500 Pickup Owner's Manual page 501

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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