External Controls

External Controls

The selector lever cable transfers the transmission operating mode from the selector lever to the automatic transmission. The indicated position of the selector lever is transferred to the transmission through the selector lever mechanism, then to the cable and down to the manual control lever located on the transmission.

Brake Shift Interlock System

The brake shift interlock system prevents moving the selector lever from the PARK position until the brake pedal is applied. The brake shift interlock system consists of a Brake Shift Interlock Actuator (BSIA) mounted on the lower right side of the steering column. When the ignition switch is in the RUN position and the selector lever is in PARK, the BSIA (Brake Shift Interlock Actuator) is energized when the brake pedal is applied. This will allow the selector lever to be moved from the PARK position.

Transmission Control Switch (TCS)

NOTE: On some models the indicator is located on the end of the selector lever and on other models it is located on the instrument panel.

The Transmission Control Switch (TCS) is a momentary contact switch located on the end of the selector lever.

Pushing the TCS (Transmission Control Switch) will either disengage or engage the tow/haul function of the transmission. If tow/haul is disengaged, OFF will illuminate on the indicator.

Tow haul raises shift points to maximize use of engine power, downshifts the transmission Into lower gears while going down hills to utilize engine braking to help slow the vehicle.

Select Shift Transmission (SST)










When the selector lever is in the D position the select shift transmission allows the driver to progressively lock out overdrive gears but keeps the transmission shifting automatically through lower gears. When towing in busy traffic or hilly areas, this prevents the transmission from shift hunting when loads cannot be pulled in overdrive gears.

When the selector lever is moved to the M position the driver has complete control over transmission shifting by manually selecting which gear to operate in. This allows the driver to hold a specific gear for more complete control of your vehicle.

The select shift switch is located on the selector lever and is not serviceable. If a new switch is required install a new selector lever assembly.

The select shift is enabled by pressing the toggle switch located on the selector lever. Once the switch is applied all available gears will be displayed above the PRNDL display. The current gear will be displayed in orange and all other gears will be displayed in ice blue.

When moving the selector lever into the M position all displayed gears on instrument cluster will disappear except the gear the transmission is in. By pressing plus ( + ) on the toggle switch once will shift the transmission to next highest gear. Pressing the minus ( - ) on the toggle switch will shift the transmission to next lowest gear. If downshifting the transmission would cause engine over speed the gear desired will flash then disappear indicating shift was attempted but not achieved.

When select shift is not enabled only the PRNDL will remain displayed and the row above will remain dark.