1997 Pontiac Firebird Owner's Manual - Page 210

6. Check that the jumper cables don't haveloose or missing insulation. If they do, you could get a shock. The vehicles could be damaged, too. 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.You don't need to add water to the Delco Freedom' battery installed in every new GM vehicle. But if a battery has filler caps, be sure the right amount of fluid is there. it is low, add water to take care If of that first. If you don't, explosive gas could be present. basic Before you connect thecables, here are some 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 geta short that would damage the battery and maybe otherparts, too. 1 A CAUTION: I Battery fluid contains acid that can burn you. Don't getit on you. If you accidentally get it in your eyes or on your skin, flush the place with water and get medicalhelp immediately. * Fans orother moving engine parts can injure you badly. Keep yourhands away from moving parts once the engines are running.