Hey, I have a 2012 suburban ltz and I was wondering why everyone I start up and sometimes while driving through stop and go traffic periodically- it will rattle in the rear driver side under the truck. It seems to be this black box behind the driver side wheel well - I’ll include some pics and maybe even a video to better help explain what the issue is - In a block box by the spare tire - what can I do to fix this? Can some simple lubricant work or will it have to be taken apart and fixed?