Ocassionally, when I open the doors/trunk (usually previously locked) I hear a "phssstz" sound for about 1.5 seconds coming from the drivers-side rear of the vehicle. I know this is a normal sound, I just want to know what exactly it is, and if theres anyway to make it quieter or stop. It's not that it bugs me, but when I open the door to let my dog jump in, and it makes the noise, he gets all scared and frightened.
Any ideas?
