Where do you connect the negative cable when jump starting a 2002 buick lesabre custom?

On a 2002 Buick LeSabre Custom, or any car for that matter, you should connect the negative jump cable to an unpainted metal surface on the dead battery's engine block or a substantial grounded metal part of the chassis. Avoid connecting it directly to the negative battery terminal if possible. Connecting to the engine block or chassis reduces the risk of sparks near the battery, which could ignite flammable gases.