does the 2003 navigator have separate station to put wiper fluid for the rear?
Under the dash on the passenger side to the right of the glove box is a air suspension and fuel cut of switch. It will say which button each is for.
In the front passenger footwell by the kick panel
It's in the trunk, drivers side behind the side panel
In the trunk there is a trap door on the drivers side with the on off button.
Hold the MAX A/C button (far left) and press the DEF button (far right)
On a 1999 lincoln Navigator : If you are asking about the Control - Trac 4x4 system control dial : ( A4WD ) is Automatic 4 wheel drive , if the back wheels " slip " then some of the power is transferred to the front wheels
In the trunk, drivers side panel in front of the suspension switch
I believe that there is a reset switch/button behind the panel on the front passenger side where you turn off the air suspension. Down where the front passengers feet would be. you will have to take off the plastic door step (has the Lincoln symbol on it) in order to take that panel off... You can pop the door step off with a flathead screw driver...
Drivers side inside the trunk a little door that you open and use the on off button.
Inside the trunk drivers side open the door on the side and use the on off button.
The fuel shut off ( inertia ) switch is located in the front passenger's footwell by the kick panel
On the 1998-2002 it is located on the passenger side front up behind the dash board. On the 2003-2006 it is at the rear of the vehicle. Open the rear hatch, behind the driver's side 3rd row seat, on the side wall with the rear AC blower, is an access door, open it, the switch is in there. On the 2007-up the main computer controls the suspension, turning it off is done through the message center.