1996 GMC Yukon Owner's Manual - Page 73

Parking atNight Park in a lighted spot, close all windows and lock your vehicle. Remember to keep your valuables out of sight. Put them in a storage area, or take them with you. New Vehicle "Break-In" NOTICE: Your modern vehicle doesn't need an elaborate "break-in." But it will perform better in the long run if you follow these guidelines: Keep your speedat 55 mph (88 km/h) or 500 miles (804 km). less for the first 0 Don't drive at any one speed fast or slow for the first 500 miles (804 km). Don't make full-throttle starts. Avoid making hard stops for the first 200 miles (322 km) orso. During this time your new brake linings aren't yet broken in. Hard stops withnew linings can mean premature wear and earlier replacement. Follow this breaking-in guideline every time you get new brake linings. 0 Don't tow a trailer during break-in. See "Towing a Trailer" in the Index for more information. Parking Lots If you park in a lot where someone will be watching your vehicle, it's best to lock it up and take your keys. But what if you have to leave your ignition key? What if you have to leave something valuable in your vehicle? 0 Put your valuables in a storage area, like your glove box. Lock all the doors except the driver's. -- -- 0 2-9