We took our van in for a routine oil change. our mechanic noticed that the fuel fill clamp had been rubbing against the brake line that was starting an indentation from the ongoing rubbing. he had seen this happen in another 2012 chevy van, but in that case, the rubbing of the fuel clamp, resulted in a brake in the line, leaking of all brake fluid, causing total loss of braking function & ability to stop vehicle. our mechanic advised us to go to the nearest chevy service center, where they could order the proper parts and fix the issue before something tragic (like total loss of brake function) could happen. i truly believe that this malfunction is not an isolated case and steps should be taken for an immediate recall to check these 2012 vans.