1997 Buick Riviera Owner's Manual - Page 269

Vehicle Storage If you're not going to drive your vehicle25 days for (-) or more, takeoff the black, negative cable from the battery. This will help keep your battery from running down. E Batteries have acid that can burn you and gas that can explode.You can be badly hurt if you aren't careful. See "Jump Starting" in the Index for tipson working around a battery without getting hurt. Contact your dealer to learn how to prepare your vehicle for longer storage periods. Also, for your audio system, see "Theft-Deterrent Feature" in the Index. To be sure the vent hose (A) is properly attached, the vent hose connectors(B) must be securely reattached to the vent outlets (C) on each sidethe battery, and the of vent assembly grommet(D) must be secured to the floor Pan (E). 6-32