Where is the reset button for a 2001 ford ranger 4.0 L. engine automatic transmission?

The reset button for a 2001 Ford Ranger with a 4.0L engine and automatic transmission is typically located on the transmission itself, near the transmission pan. It may also be found on the driver's side, just above the transmission oil pan. If you're having trouble locating it, refer to the owner's manual for specific diagrams and locations.