Make the entire chunk of text all caps. Put the chunk of text in a separate paragraph and use a special-notice format. Use a different color. Bold is used. Italics is used.
All caps is used.
This is standard practice. Caps should be limited to separately orderable products as much as possible. Bold, and the capitalization style used on the key top. Italics, and the capitalization style used on the key top. All caps, and the capitalization style used on the key top.