Last week the TCS light was on. My brother-in-law come over to scan it. we go out to the van (2012 Quest) and the lights are off. This past weekend, the TCS light is back on along with the red BRAKE light. I ask him to come scan the car, turn the car on and no lights. WTF? I’ve checked the obvious - buttons being pushed, parking brake not engaged, brake fluid ok. The lights havn’t been back since.