L/D Push Button

L/D Push Button in MFL: US vehicles are equipped with the L mode (limiting function) which allows the driver to suppress certain shifts (ascending or descending steep grades).





Starting from position D, the limitation mode is selected by pressing the L/D push button. Initially, the current gear is retained and the vehicle will not upshift to a higher gear.

The system returns to the automatic mode by pressing the L/D button again or pressing the selector lever to position D.

Example: Position D is engaged and the gearbox is in 4th gear. After pressing the L/D push button in the MFL, 4th gear is retained and is the upper limit. Gears 1 through 4 will be shifted automatically when the vehicle is driven.

There are two push buttons integrated in the steering wheel facing the driver (ten and two o'clock position as shown above). The limitation stages are manually downshifted by pressing either of these buttons when the L mode is selected. It is not possible to upshift the limitation stages. There is no forced upshift when reaching the maximum engine speed.

When the L mode is selected, the indicator in the instrument cluster will illuminate to indicate L1 through L6.

Impermissible shift requests, such as a down shift that will cause the engine to exceed the maximum speed are suppressed by the transmission control module and are indicated only temporarily in the instrument cluster.