2003 Cadillac CTS Owner's Manual - Page 92

New Vehicle "Break-In" NOTICE: Your vehicle doesn't need an elaborate "break-in." But it will perform better in the long run if you follow these guidelines for the first 500 miles (805 km): D Don't drive at any one speed -- fast or slow. D Do not exceed 70 mph (113 km/h). D Don't make full-throttle starts, also refrain from using the full throttle while driving. If these procedures are not followed your engine, axle or other parts could be damaged. D Avoid making hard stops for the first 200 miles (322 km) or so. During this time your new brake linings aren't yet broken in. Hard stops with new linings can mean premature wear and earlier replacement. Follow this breaking-in guideline every time you get new brake linings. Don't tow a trailer during break-in. See "Towing a Trailer" in the Index for more information. Ignition Positions With the key in the ignition switch, you can turn the key to four different positions. 2-24