2008 Buick LaCrosse Owner's Manual - Page 323

CAUTION: (Continued) Battery fluid contains acid that can burn you. Do not get it on you. If you accidentally get it in your eyes or on your skin, flush the place with water and get medical help immediately. Do not connect positive (+) to negative (−), or you will get a short that would damage the battery and maybe other parts too. And do not connect the negative (−) cable to the negative (−) terminal on the dead battery because this can cause sparks. 5. Check that the jumper cables do not 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 (+) or to a remote positive (+) terminal if the vehicle has one. Negative will go to a heavy, unpainted metal engine part or to a remote negative (−) terminal if the vehicle has one. Notice: If you connect a negative cable to the Engine Control Module (ECM), ECM mounting bracket or any cables that attach to the ECM bracket, you may damage the ECM. Attach the negative cable to a heavy, unpainted metal engine part, other than the ECM, ECM bracket or cables attached to the ECM bracket. 3.8L V6 Engine shown, 3.6L V6 Engine similar 5-53