Theory Of Operation

The Fold Stow System is made up of the Fold Stow Module (FSM), 3rd Row Stow Motors, 3rd Row Seat Recliner Motors, 3rd Row Seat Headrest Motors, Rear Power Folding Seat Latches, D-Pillar Power Folding Seat Switch, 3rd Row Seat Recliner Switches, and 3rd Row Seat Latch Switches. The FSM controls and monitors the function of the third row seats in the Fold, Stow, and Normal positions and the seat backrest angle in either the forward or rearward direction. The FSM receives Fused B+ directly from the Power Distribution Center (PDC). The FSM is also equipped with an obstacle detection system to allow for safe operation.

The 3rd Row Seat Stow Motors are directly powered by the FSM and contain hall-effect position sensors that provide input to the FSM for seat position (Fold, Stow, Normal) and motor speed. These functions can be commanded separately to any seat position (Fold, Stow, Normal) or seat location (left, right, both). These functions only operate with the vehicle in park and the liftgate open.

The 3rd Row Seat Recliner Motors are directly powered by the FSM and contain hall-effect position sensors that provide input to the FSM for the seat backrest angle in either a forward or rearward direction. Each 3rd row seat backrest can be moved in a forward or rearward direction and is controlled separately by its corresponding switch based on the seat location (left or right).

Each 3rd row seat (left, right) also has a 3rd Row Seat Headrest Motor that moves automatically to a position dependent on which seat position (Fold, Stow, Normal) is commanded by the FSM.