2010 Buick LaCrosse Owner's Manual - Page 237

Driving and Operating WARNING (Continued) . 8-17 Do not leave an unsecured child restraint in the vehicle. When you carry something inside the vehicle, secure it whenever you can. Do not leave a seat folded down unless you need to. Starting and Operating New Vehicle Break-In Notice: The vehicle does not need an elaborate break-in. But it will perform better in the long run if you follow these guidelines: . . can be used. Vehicle speeds above 110 km/h (68 mph) should be limited to five minutes per use. Avoid making hard stops for the first 322 km (200 miles) or so. During this time the new brake linings are not 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. Do not tow a trailer during break-in. See Driving Characteristics and Towing Tips on page 8‑54 for the trailer towing capabilities of your vehicle and more information. . . Do not drive at any one constant speed, fast or slow, for the first 805 km (500 miles). Do not make full-throttle starts. Avoid downshifting to brake or slow the vehicle. During the first 1 000 km (600 miles), avoid using more than moderate acceleration in lower gears and avoid vehicle speeds above 110 km/h (68 mph). Between the first 1 000 km (600 miles) and 5 000 km (3,000 miles), heavy acceleration in lower gears . . . Following break‐in, engine speed and load can be gradually increased.