Hill Start Assist
WARNING: This page is about a different car, the 2013 Dodge Avenger and 2013 Chrysler 200. However, it is still accessible from the selected car via links, so may be relevant.
The Hill Start Assist (HSA) system is designed to assist the driver when starting a vehicle from a stop on a hill by maintaining the level of brake pressure the driver applied for a short time period after the driver takes his foot off of the brake pedal. Pressure is released as the vehicle starts to move.