Abstract: A transmission shift tower selector lever assembly has a base member slidably supporting a bracket. A shift lever is pivotally mounted on the bracket and linearly movable therewith to the Drive, Neutral and Reverse transmission operation positions. A lock-out lever pivotally mounted on the bracket is connectible with the shift lever to prevent pivoting thereof relative to the bracket during linear movement of the bracket between the Drive and Reverse transmission positions. The lock-out lever pivots during movement of the bracket between the Reverse and Park positions to free the shift lever for pivotal movement relative to the bracket and base member to establish the Park position. A Park/Lock lever is pivotally mounted on the base member and is engaged by the bracket when the bracket and shift lever are moved between the Drive and Reverse positions. The Park/Lock lever is disengaged therefrom during movement between the Reverse and Park positions to permit pivoting of the Park/Lock lever on the base member.

Abstract: A floor mounted transmission shift control has a shift lever with a pushbutton mechanism for releasing the detent mechanism so that shifting from the Park position can be accomplished. The Park/Lock lever is pivotally mounted on the shift control assembly and has one end thereof connected through a lost motion mechanism with the detent pushbutton mechanism and the other end thereof connected with an ignition lock control cable. The one end of the Park/Lock lever is normally not aligned with the pivot axis of the shift lever but is alignable therewith by the operation of the pushbutton mechanism. The ignition lock control cable prevents pivoting of the Park/Lock lever unless the vehicle ignition is unlocked thus preventing shifting from the Park position when the ignition lock control cable is held stationary. The alignment between the shift lever axis and the one end of the Park/Lock lever reduces the loading on the shift lever during manual change to and from the Park position.

Abstract: A floor mounted transmission control movable to a plurality of operating modes for controlling an automatic transmission has a lock rod controlled by a steering column mounted ignition lock and switch control which prevents the release of a detent mechanism thereby prohibiting movement of the transmission control from the "Park" mode unless the ignition switch has been moved from the "Lock" position. The connection between the ignition switch and the lock rod is by way of a flexible cable. The manual control detent mechanism has a stop member associated therewith which prevents the lock rod from performing its function and the ignition switch from being moved to the "Lock" position until the "Park" mode is selected by the operator.