Acid may leak from the battery at the cable connections, resulting in corrosion on the battery cable ends and in the battery tray. A Leaking battery should be replaced and the cables thoroughly cleaned or replaced if necessary.
Car Problem Reports
Oldsmobile Cutlass Corrosion on Battery Cable Ends
Oldsmobile Cutlass Problem
Model Year Affected: 1999
Visitor, 1999 Oldsmobile Cutlass, 232,854 mi
greenish yellow build up on battery and battery tray just started about 6 motnhs ago and seems to be happening pretty quickly on the build up just scraped a chunk of the battery cable end last week