The interior lights flicker. The alarm system activates on its own. There is a build up of water on the passenger's side. The water puddles under the back seat of the passenger's side. The latch that opens the entire hatch will not work. Please give me step by step instructions on how to repair. I am not the most handy person around the engine. This is my son's first car and this is something that we hopefully can do together. Thanks!