Originally Posted by Jack G

When you are going to stop the car and shut off the engine always keep your foot on the brake put the transmission into Park (P) and pull up the hand brake, then turn off the engine.
think the clicking sound you are hearing is from the Park locking mechanism in the transmission. The clicking sound is normal but you should always use the parking brake before shutting off the engine especially if you are on a hill. Never shift into Park even if the car is rolling slightly. This will damage the transmission. Check the owners manual.