Driver seat and mirror will not retain settings

James,

Here's some sites that will help you...

https://www.google.com/search?q=driver+side+power+seat+on+2003+navigator+not+working

Best to you.

Principles of Operation
The driver seat module (DSM) is on the controller area network (CAN) communication network. To support several vehicle subsystems, the module permits intermodule and diagnostic tool communications.
The DSM controls the memory driver seat and the passenger memory power exterior mirror. This passenger memory power exterior mirror feature allows the driver to program personalized mirror positions. Once the driver stores a mirror position, the driver can recall the setting by pressing the corresponding memory switch or by using a programmed remote keyless entry (RKE) transmitter. For additional information, refer to Section 501-10 .

How to Diagnose Controller Area Network CAN

Driver Seat Module - Memory Seat
The power driver seat, power outside rear view mirrors and power adjustable pedals are controlled by the driver seat module (DSM) only when the vehicle is equipped with the programmable/recall memory option. The DSM is located on the driver seat track.
This system allows automatic positioning of the driver seat to 2 programmable positions.

• A power driver seat position can be stored at any time. The driver must move the seat to the desired position using the driver seat switch assembly. The driver must then depress the memory SET switch which activates the memory SET switch light emitting diode (LED). Within 5 seconds (before the LED goes out), the driver must select a memory position. Memory 1 is selected by depressing memory switch 1. Memory 2 is selected by depressing memory switch 2.
• If no memory switch input is received within the 5-second time limit, the operation is aborted and the memory seat position switch (set switch) LED is turned OFF. This also occurs if one of the following inputs is received during the 5-second programming limit:
  • Driver seat control switch
  • Memory seat position switch (set switch)
  • Power adjustable pedal switch

A programmed seat position can only be recalled when the transmission selector is in PARK or NEUTRAL with the ignition switch in the RUN position. A position may be programmed at any time.

Easy Entry/Easy Exit
The driver power seat easy entry/easy exit feature can be enabled/disabled. Refer to Section 418-01 or the owner's literature.

This may need to be done with a scan tool

I am not sure about changing the name as my 2000 park ave. only indicates driver one or driver two. To reset the memory for seat/ mirror position is rather simple: with the ignition on and the car in park, adjust your seat and mirrors to the desired position. Then press and hold the desired button (driver one or two) until you hear a beep, This is the procedure that works on my 2000 park ave. I hope this helps you.

Check all fuses with a 12 volt test lite

Position items,press set ,then #1 or #2

No owners manual ?

Helm.com --- to buy one

For mirrors you need to move the switch to the side you want

this might be what you're experiencing.......
Park Tilt Mirrors
If the vehicle has the memory
package, the outside mirrors
have a park tilt feature. This feature
automatically tilts the outside
mirrors to a preselected position
when the vehicle is in R (Reverse).
This allows the driver to view the
curb for parallel parking.
The passenger and driver mirrors
return to their original position
when the vehicle is shifted out of
R (Reverse), or the ignition is turned
off or to OFF/LOCK.
This feature can be turned on or
off through the Driver Information
Center (DIC)

The audio system controls are used
to access the personalization
menus for customizing vehicle
features. (DIC)
CONFIG (Configuration):
Press
to access the Configuration
Settings Menu.
MENU / SELECT Knob:
Press the
center of this knob to enter the
menus and select menu items.
Turn the knob to scroll through the
menus.
0
BACK:
Press to exit or move
backwards in a menu.

Sure hope this helps!
Best to you.

The memory seats do have a separate seat module to retain the seat memory. That may be at fault and not the switch

That is probably because the setting for the mirror had been saved in the memory along with the setting for the driver's seat position (if your model has programmable memory for seat position. Set the mirror in the most convenient position and also the driver's seat. Press and hold the MEM button on your driver's seat and press any of the memory numbers. This will store those settings in the memory so that even if someone else alter these setting, the mirror and the seat will be adjusted to the memorised setting when you use the remote to open the car.

The exterior mirrors:

• are controlled by power controls on the LH front door trim panel.
• are of a foldaway design.
• may contain turn signal indicators.
• may be heated when the heated back window glass is activated.
• may have a programmable recall memory option.

Driver Seat Module
The power driver seat and power exterior mirrors are controlled by the driver seat module (DSM) only when the vehicle is equipped with the programmable/recall memory option.
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Power Exterior Mirror Operation
The power exterior mirrors are controlled by the DSM and are operational all the time, whether the ignition switch is on or off. Using the power exterior mirror switch, the driver can adjust the driver and passenger exterior mirrors four ways.
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Visual Inspection Chart Mechanical Electrical

• Exterior mirror(s)
• Interior mirror

• Central junction box (CJB) fuse
• Circuitry
• Exterior mirror control switch
• Exterior mirror motor
• Interior mirror
• Driver seat module (DSM)
• Memory set switch

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1. If the vehicle is equipped with memory exterior mirrors and the concern remains after the inspection, connect the diagnostic tool to the data link connector (DLC) located beneath the instrument panel. Select the vehicle to be tested from the diagnostic tool menu.
   • Check to make sure the program card is correctly installed.
   • Check the connections to the vehicle.
• Check the ignition switch position.

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• The mirrors are inoperative

• Circuitry.
• Central junction box (CJB) fuse.
• Exterior mirror control switch.

1. Set seats to position you want retained in memory
2. Press set button on drivers door
3. Press which memory location to be stored to, 1 or 2