2010 Dodge Ram 1500 Regular Cab Owner Manual - Page 394

392 STARTING AND OPERATING EVIC Equipped Vehicles HSA is a Customer Programmable Feature on a EVIC equipped vehicle. If you wish to turn off the HSA feature, refer to "Customer Programmable Features/Electronic Vehicle Information Center (EVIC)" in "Understanding Your Instrument Panel" for further information. Electronic Stability Program (ESP) - If Equipped The ESP system enhances directional control and stability of the vehicle under various driving conditions. ESP corrects for oversteering or understeering of the vehicle by applying the brake of the appropriate wheel to assist in counteracting the oversteer or understeer condition. ESP OFF Switch Engine power may also be reduced to help the vehicle ESP uses sensors in the vehicle to determine the vehicle maintain the desired path. path intended by the driver and compares it to the actual path of the vehicle. When the actual path does not match the intended path, ESP applies the brake of the appropriate wheel to assist in counteracting the oversteer or understeer condition.