2006 Pontiac GTO Owner's Manual - Page 76

Starting and Operating Your Vehicle New Vehicle Break-In Notice: Your vehicle does not need an elaborate break-in. But it will perform better in the long run if you follow these guidelines: Ignition Positions The key can be turned to one of three positions while in the ignition switch. • Keep your speed at 55 mph (88 km/h) or less for the first 500 miles (805 km). • Do not drive at any one constant speed, fast or slow, for the first 500 miles (805 km). Do not make full-throttle starts. Avoid downshifting to brake, or slow, the vehicle. A (LOCK): This is the only position from which you can insert or remove the key. When the key is inserted and is in this position, the radio, wipers, and accessory power outlet will continue to work until the key is removed. Once the key is removed these accessories will turn off. By selecting the ON switch on the radio these accessories will continue to work for one hour or until either door is opened. If the key is left inserted in this position, a chime will sound when the driver's door is opened to remind you the key has been left in the ignition. If the key is left in the ignition, it can drain the battery. Make sure to remove the key when leaving the vehicle. • Avoid making hard stops for the first 200 miles (322 km) or so. During this time your 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. Following break-in, engine speed and load can be gradually increased. 2-16