2012 Jeep Wrangler Owner Manual - Page 424

422 STARTING AND OPERATING The system will only work if the intended direction of the vehicle and vehicle gear match. For example, if the intended direction is forward up a hill and the vehicle is in DRIVE (automatic transmission equipped vehicle), and the activation criteria are met, HSA will activate. HSA On Manual Transmission Vehicles The system will work in REVERSE, forward gears, and NEUTRAL on manual transmission equipped vehicles. The system does not recognize NEUTRAL on manual vehicles, thus it will hold the vehicle on an incline for a short period while in NEUTRAL, regardless of clutch HSA On Automatic Transmission Vehicles position. To prevent this, do not attempt to roll down a The system will work in REVERSE, and all forward gears hill simply by putting the transmission in NEUTRAL and on vehicles equipped with an automatic transmission. letting gravity act on the vehicle, as the HSA will prevent The system will not activate if the vehicle is placed in the vehicle from rolling. Instead, use the appropriate gear NEUTRAL. for moving in the desired direction. Towing With HSA HSA will provide assistance when starting on a grade when pulling a trailer.