Cold Climate Operation

In low ambient temperatures, there may be an increased time delay for the transmission to select neutral. To prevent the transfer box changing range before the transmission has selected neutral, the transfer box ECU contains software to delay the range change.

The transfer box ECU receives a transmission fluid temperature message on the CAN. If this temperature is 5°C (41°F) or below, the transfer box ECU initiates a nominal delay in the range change to allow the transmission to engage neutral. The delay period is dependent on transmission fluid temperature.