Reverse Automatic Braking (RAB) uses four rear bumper mounted sonar sensors to detect objects when moving between 1 and 9 mph in reverse. RAB uses the Rear-Vision Camera image to display colored proximity alerts when an object is detected.. In this video I show you how Subaru's RAB (Reverse Auto Braking) safety feature works on the Subaru Forester and Subaru Outback. The Subaru Forester Reverse.
Understanding Subaru Reverse Automatic Braking Subaru Reverse Automatic Braking (RAB) is a driver assistance feature designed to enhance safety by providing an additional line of defense to protect the vehicle from rear-end collisions and accidents.. It's a major inconvenience to find out that there's something wrong with your car. Whether you own a Subaru or any other vehicle, discovering that something isn't functioning properly makes the entire process of driving less enjoyable and more stressful.