However, it appears many in the collision repair industry and the insurance companies reimbursing them had relied on the presence of a dashboard “idiot light” to determine whether electrical systems were functioning properly. Mechanics have been scanning vehicle for years, and some OEM repair procedures note the procedure’s necessity. GM customer care and aftersales general manager John Eck in August had signaled such a position was coming. 1 auto producer, on Friday issued a position statement requiring all collision repairers to scan vehicles before and after every repair.