Transmission Control Indicator Lamp (TCIL)
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 TCIL is used along with the Tow/Haul Switch. The TCIL is located near the end of the shift lever and will illuminate the graphics "Tow/Haul ON" when the Tow/Haul switch has been pressed. The PCM controls the operation of the TCIL. The PCM may also flash the TCIL on/off to alert the driver that a transmission operational error has occurred when certain faults in monitored sensors, solenoids or other transmission components are detected.