1997 Buick LeSabre Owner's Manual - Page 215

A CAUTION: L l Using a match near a battery can cause battery gas to explode. People have been hurt doing this, and some have been blinded. a flashlight if Use you need more light. Be sure the battery has enough water. don't You need to add water to the Delco Freedom@ battery installed in every newGM vehicle. But if a battery has filler caps,be sure the right amount of fluid is there.If it is low, add water to take care of that first. If you don't, explosive gas could be present. Battery fluid contains acid that can burn you. Don't get it onyou. If you accidentally get it in your eyes or on your skin, flush the place with water and get medical help immediately. 5. Find the positive (+) and negative (-) terminals on each battery. 6. Check that the jumper cables don't have loose or missing insulation. If they do, you could get a shock. The vehicles could be damaged, too. Before you connect the cables, here are some basic things you should know. Positive (+) will go to positive (+) and negative (-) will go to negative (-) or a metal engine part. Don't connect positive (+) to negative (-) or you'll get a short that would damage the battery and maybe other parts, too. Fans or other moving engine parts can injureyou badly. Keep your hands away from moving parts once the engines are running. 5-5