(4L) Operation

(4L) provides electronically locked four-wheel drive power to both the front and rear wheels for use on low traction surfaces but does so with an additional gear reduction for increased torque multiplication. Intended only for off-road applications such as deep sand, steep grades or pulling heavy objects. (4L) does not engage when your vehicle is moving above 3 mph (5 km/h); this is normal and should be no reason for concern.

Shifts to and from (4L) can only be made below 3.1 mph (5 km/h) the clutch pedal fully applied. When performing this shift, wait until the 4x4 Shift in Progress message disappears in the IPC before releasing the clutch pedal. If the vehicle speed or clutch pedal position is not within parameters, the message center will indicate the necessary action needed to complete the shift. In (4L):

• The ATCM sends a (4L) mode status to the AWD module via the GWM.
• The shift motor positions the ball ramp device to completely apply the clutch.
• The shift motor positions the reduction sleeve connecting the planetary carrier and output shaft
• (4L) is displayed in the message center.

The start in gear feature is available in (4L). Start in gear allows the driver to restart the engine and launch the vehicle after stalling in (4L).