2012 Chevrolet Impala Owner's Manual - Page 198
2012 Chevrolet Impala Manual
Page 198 highlights
9-14 Driving and Operating { WARNING Things inside the vehicle can strike and injure people in a sudden stop or turn, or in a crash. . WARNING (Continued) . 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: . Do not leave an unsecured child restraint in the vehicle. Secure loose items in the vehicle. Do not leave a seat folded down unless needed. Put things in the cargo area of the vehicle. In the cargo area, put them as far forward as possible. Try to spread the weight evenly. Never stack heavier things, like suitcases, inside the vehicle so that some of them are above the tops of the seats. (Continued) . . . 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. 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. .