"Clicking" sound when doors are opened or closed
I have a 2012 SLT2, 4-cylinder, FWD. I have discovered something my dealer has never heard of and knows nothing about, but says it must be normal.
With the engine off, hot or cold, about 15 seconds after opening any door, rear hatch, or hood, a "clicking" sound starts up under the hood and lasts several seconds. The same thing happens again after you close the door, rear hatch, or hood! I have traced the sound with my automotive stethoscope, and found that it is coming from the front transmission cover where their is an electrical connector near the left side of the cover.
This is not causing any problem, but I would really like to know what it is and if, in fact, it IT IS normal. If it is not, I need to get it repaired soon, as the car is still covered under GM's Certified Pre-Owned vehicle warranty.