Coined "hill start assist", the new feature is activated when the brake pedal is pressed and the car detects that you are on a slope. Rather than the usual handbrake/clutch gas start, that can sometimes cause you to roll backward on a hill start, the system holds brake pressure for up to 2 seconds, allowing the driver to apply the gas and easeThis "HILL START ASSIST NOT AVAILABLE" warning together both the ABS and traction control lights up, only happens when I had a sudden or hard stop. When I turn off engine and restart it again, the lights goes off as if nothing happens. This only happens a week ago. Didnt have this problem before. The hill start assist was disabled even after two checks by Ford mechanics. Sometimes the "unavailable HSA" message appeared when I brake down in a street. Very strange!!! I made the diagnosis and in my opinion it is a brake imbalance that leads to missing messages on the ABS sensors.
Hill Start Assist (HSA) may. automatically activate when the. vehicle is stopped on a grade. This. feature is designed to prevent the. vehicle from rolling, either forward or. rearward, during vehicle drive off. During the transition from releasing. the brake pedal to accelerating to.
and How Does It Work? Hill start assist is a cool feature found on some modern vehicles to make driving easier in specific terrains. The technology helps you avoid the moment your car may roll slightly between when you take your foot off the brake and move it to the accelerator. StunningTuna. 77 posts · Joined 2017. #9 · Mar 30, 2019. . It is my understanding that hill start assist is exactly that, it helps when pulling away on a hill by slightly delaying the release of the brakes until you have your clutch breaking point. It's not meant to hold you on a hill, that's another system entirely.