1996 Buick Riviera Owner's Manual - Page 237

When you-put-the back ctn, turn it to the right cap until you hear at least three clicks. Makesure you fully install the cap. I NOTICE: I you need a new cap, be sure get the right f to. type. Your dealer can one for you. I you get .get f the wrong type, it may not fitor.have proper venting, and your fuel tank and emissions system might be damaged. up An electric fanunder thehood can start and injure you even whenthe engineis not running. Keep hands, clothingand tools away from.any underhood electric fan. Things thatburn can get un hot engine-parts anc start a fire:These includeliquids like gasoline, oil, coolant, brake fluid, windshield washer and other fluids, and'plastic rubber. You or others or could be burned.Be careful not to drop or spill things that-will burn onto engine. a hot 6-8