Owner's Manual
Page 467
...Miles (Kilometers) CTS-V Only: Change brake fluid (severe service only). Engine cooling system service (or every five years, whichever occurs first). Inspect engine accessory drive belt. An Emission Control Service. See footnote (p). Inspect other brake parts, including calipers, parking brake, etc. (b)... Visually inspect front and rear suspension and steering system for surface condition. Replace spark plugs. Inspect disc brake pads for wear and rotors for damaged, loose, or missing parts or signs of wear. An Emission Control Service. See footnote (l). ...
...Miles (Kilometers) CTS-V Only: Change brake fluid (severe service only). Engine cooling system service (or every five years, whichever occurs first). Inspect engine accessory drive belt. An Emission Control Service. See footnote (p). Inspect other brake parts, including calipers, parking brake, etc. (b)... Visually inspect front and rear suspension and steering system for surface condition. Replace spark plugs. Inspect disc brake pads for wear and rotors for damaged, loose, or missing parts or signs of wear. An Emission Control Service. See footnote (l). ...