2008 Dodge Ram 2500 Pickup Owner Manual - Page 330

328 STARTING AND OPERATING HSA (Hill Start Assist) The HSA system is designed to assist the driver in launching a vehicle on an incline. HSA will maintain the level of brake pressure the driver inputs for a short duration once the driver takes his foot off of the brake pedal. If the driver does not apply the throttle during this short duration, the system will release brake pressure and the vehicle will roll down the incline. The system will release brake pressure in proportion to the amount of throttle applied. During operation, Hill Start Assist will activate the brake control system and a clicking noise will occur. If your foot is on the brake pedal during operation you may feel a slight pedal movement. The clicking and pedal movement is normal and both will stop when HSA becomes inactive. WARNING! If the clutch pedal (manual vehicles only) remains depressed during the application of the throttle, the HSA will disengage allowing the vehicle to roll down the incline. This could cause a collision with another vehicle or object. To avoid this, do not apply throttle while depressing the clutch pedal until you are ready to release the clutch. Always remember the driver is responsible for braking the vehicle. HSA Activation Criteria The following criteria must be met in order for HSA to activate: • Vehicle must be stopped • Vehicle must be on a 7% or greater incline