2007 Ford F250 Special Off-Road Package Supplement 1st Printing - Page 24

Tires, Wheels and Loading DDM Displays current CTIS status and alerts. 1. TERRAIN display: • HY (Highway) for operation on improved surfaces • CC (Cross Country) for operation on secondary roads • SS (Sand) for operation on sand, trails and unimproved surfaces • E (Emergency) for selection of extremely low tire pressures to help free stuck vehicle or to traverse bad terrain Dashes displayed in DDM Terrain display • CTIS system fault • CTIS has shut off at least one channel due to fault tolerance • System may periodically check to see if fault still exists • Operation may be allowed on unaffected channels • Check tires for proper pressure and get service at earliest opportunity 2. LOAD bar graph display: • Off: Unloaded • On: Loaded 3. Channel display: • FRT: Front axle • RR: Rear axle When the terrain channel is flashing, the CTIS is working to achieve pressures that are appropriate with the indicated terrain or checking pressure. When the terrain channel is solid, the tires are at the appropriate pressure, the CTIS is in maintenance mode and the wheel valves are closed. 4. OVERSPEED • Flashing or buzzer activated: Vehicle speed has exceeded the programmed speed limit for the current tire pressure. 24