Seat Memory

DRIVER'S SEAT MEMORY FUNCTION

As with previous systems, the seat memory feature of the SM stores three seat positions for recall. The positions are stored in a non-volatile memory preventing loss of positions if in case the SM or the battery is disconnected.







The additional buttons on the SM (M) provide activation of recording memory position and (1-2-3) for storing or recalling a specific seat setting.

Storing current seat position:
- Seat in desired position,
- Ignition switch in KL R,
- Press the M button until it illuminates
- Within 7 seconds press the 1, 2 or 3 button to store.

The stored position can be recalled at any time by pressing the appropriate memory location button (1-2-3).

MEMORY RECALL MODES OF OPERATION
Depending on current SM input signals via K-Bus, the memory recall operates in two distinctly different modes:
- One-touch mode (TTB),
- or press and hold mode of operation (DTB).

If the following input signal status is current, the SM resets the seat position by a momentary "one touch" of the selected memory button.
- Ignition switch off with the driver's door open, or,
- KL R on, door open or closed

If the following input signal status is current, the SM resets the seat position by a continuous "press and hold" of the selected memory button.
- Ignition switch off with the driver's door closed
- KL 15 on, door open or closed.

DRIVER'S SEAT MEMORY (CAR Memory Influence)
The PM-SM can be encoded to recall a specific seat position for a vehicle user when the GM signals the SM to automatically recall stored positions separate of the 1-2-3 button selections.

This feature is encoded through the car memory function and activated by the key memory function. The PM-SM will monitor the seat position and store it in another area of it's memory when the vehicle is locked with the remote keyless entry system. The GM sends a request to memorize the seat position and store it for FZV key user 1,2,3 or 4.

If another user of the vehicle changes the seat position the PM-SM restores the memory position the next time the specific key is used to unlock the vehicle.

This feature can be further modified to activate the position recall based on the owner's selected activation scenario, for example: The owner can choose to:
- Disable this feature,
- Initiate memory recall when the unlock signal is initially sent before a door is opened.
- Initiate memory recall when the unlock signal is sent but only when the driver's door is opened.

See Car Memory Key Memory for additional information.

POWER SEAT DIAGNOSIS
The PM-SM communicates with the DIS or MoDiC via the K bus - instrument cluster gateway - to the P-bus. The PM-SM monitors the seat motors and circuits as well as it's internal operation. Any detected faults are stored in the PM-SM fault memory and are called up when diagnosing the system with the Fault Symptom diagnostic plan.

The PM-SM also provides status display to the DIS of its input and output control signals as well as component activation.