ATSG (Automatic Transmission Service Group) is a technical support service and leader in the Automatic Transmission Industry. Since our inception in 1985 by Robert Cherrnay, we have kept his vision to grow, change and revolutionize the industry by leaps and bounds.

Our priority is to focus on how we can better serve the automatic transmission shop and total car care shop owner, their employees, technical professionals by providing unmatched superior technical support, continuous updated bulletins, membership enhancements, turning problems into solutions as well as saving our members time and money to help them get their customers in and out of the shop fully satisfied in a timely manner.