2012 Ford F350 Super Duty Owner Guide 4th Printing - Page 297

Driving The RSS detects obstacles up to 6 feet (2 meters) from the rear bumper with a decreased coverage area at the outer corners of the bumper, (refer to the figures for approximate zone coverage areas). As you move closer to the obstacle, the rate of the tone increases. When the obstacle is less than 10 inches (25.0 cm) away, the tone will sound continuously. If the RSS detects a stationary or receding object further than 10 inches (25.0 cm) from the side of the vehicle, the tone will sound for only three seconds. Once the system detects an object approaching, the tone will sound again. While receiving a warning the radio volume may be reduced to a predetermined level. After the warning goes away, the radio will return to the previous volume. The RSS may have reduced performance or an increased chance of false detection if the tailgate is not locked and in the upright position. If the tailgate is down, the RSS tone may be heard intermittently or continuously. The tone may also be heard if items in the truck bed protrude rearward outside the bed. The RSS automatically turns on when the gearshift lever is placed in R (Reverse) and the ignition is on. A control in the message center allows the driver to disable the system. Refer to Message center in the Instrument Cluster chapter for more information. Note: If the system cannot be turned off, refer to MyKey™ restricted features in the Locks and Security chapter for more information. Note: If your vehicle is equipped with a fully integrated electronic trailer brake controller (TBC) and a trailer with electric trailer brakes is connected to your vehicle, the RSS will be disabled. When the vehicle is shifted into reverse, the message center display will remain in the Rear Park Aid Off selection. For more information on the TBC, refer to the Tires, Wheels and Loading chapter. 297 2012 F-250/350/450/550 (f23) Owners Guide, 4th Printing USA (fus)