Manual Mode Shifting Operation
Electronic Range Select Mode
Electronic Range Select Mode, also known as Manual Mode, allows for the range of gears available. This mode allows the driver to choose the top gear limit of the transmission and is used when driving downhill or towing a trailer to limit the top gear and vehicle speed.
To use this feature:
- Press the L (Low) button located on the front shift console.
- Press the Plus (+) or Minus (-) button located on the front shift console to increase or decrease the gear range available.
When the L (Low) button is pressed, the transmission will shift to a pre-determined lower gear range. The highest gear range available for this pre-determined range is displayed next to L in the Driver Information Center (DIC). The number displayed in the DIC is the highest gear that the transmission will be allowed to operate in. This means that all gears below that number are also available. For example, when 4 is shown next to the L, first (1) through fourth (4) gears are automatically shifted by the transmission. The transmission will not shift into fifth (5) until the plus (+) is pressed or the Drive (D) is selected.
While in manual mode, the K71 Transmission Control Module will prevent shifting to a lower gear range if the engine speed is too high. The driver has a brief period of time to slow the vehicle. If vehicle speed is not reduced within the time allowed, the lower gear range shift will not be completed. You must further slow the vehicle, then press the minus (-) button to attain the desired lower gear range.