Tow Haul Indicator (Diesel Only)
WARNING: This page is about a different car, the 2004 Ford Pickup, 2004 Ford F550 Super Duty, 2004 Ford F450 Super Duty, 2004 Ford Excursion, and 2004 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
The tow haul indicator illuminates when the tow haul button is pressed on the column-mounted transmission range selector lever. When the vehicle is in the tow mode, the indicator is illuminated by a signal from the powertrain control module (PCM) to inform the operator that the vehicle will not shift into overdrive. When the indicator is illuminated, the vehicle will also provide engine braking and early transmission downshifts when braking on downhill grades.