How do you change the timing belt on a 1995 Buick Riviera?

To change the timing belt on a 1995 Buick Riviera, first disconnect the battery and remove any components obstructing access to the timing belt cover. Then, remove the timing belt cover, ensuring you align the timing marks on the crankshaft and camshaft to maintain proper timing. Next, loosen the tensioner and remove the old timing belt, replacing it with a new one while ensuring proper tension. Finally, reassemble the components, recheck the timing, and reconnect the battery.