Hill Start Aid

Eaton transmissions are equipped with a Hill Start Aid (HSA) feature to prevent the vehicle from rolling while on grades steeper than 3 percent and allow for a controlled launch. A grade sensor is used to determine when to engage the feature.

HSA is 'on' by default. It can be turned off by pressing and releasing the override switch on the dash (see Chapter 4 ). HSA will turn back on after the first successful launch.

When the vehicle is stopped on a grade greater than 3 percent and in a forward mode or reverse, depress the service brakes then release them. The vehicle will begin to move after 3 seconds, and the clutch will perform partial engagements to slow the vehicle motion. Either step on the brake or apply the throttle to continue negotiating the grade.