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It means she left with the only working key and it’s letting you know not to drive off without a working key,  Try it with her fob only.  Then check your fob batteries.

Do you know which as built entry to change and the value needed for the 2020 nautilus's double horn honk?

2016 MKX with stuck/clicking/jerking mirror(s).  Been basically living with it. But now, I also have an intermittent parasitic battery drain. Replaced 4 yr old battery...same thing with new battery...sometime 24-48 hours, battery is dead.  Simultaneously with parasitic battery drain, been starting to get a message on the dash at start up "remote battery low, replace soon" (something like that). Now, this has degraded to remote not working at all unless I rest it in it birthing spot to start the car (inside bottom of console).  Could these all be related?

I have a 2015 Lincoln MKX that has a intermittent thumping sound coming from the front of the vehicle while going slow ( under 10 mph ) over gravel or dirt roads. It is not the tires or the brakes. We are getting ready to sell the vehicle and get a new 2024 Ford Ranger and would like to fix it if possible.

Thank you

About 6 months ago my driver's seat heat / AC stopped working. Then a few months after that the rear hatch intermittently stopped working and at the same time that was acting up the side collision detectors would go off at random times. Then I woke up one morning to a completely dead battery. Replaced the battery and the car worked fine for a few days except the drivers seat climate still didn't work.  Then the rear hatch inside sensor thing started up intermittently again. Woke up again this morning to a completely dead battery. Was again able to jumpstart it and again the rear hatch worked once but then stopped working again.  I have no idea if they are all related but I have gone down many rabbit holes to no avail. I have tried disconnecting the battery and touching the positive and negative together to discharge everything to try and reset modules.  Does anybody have any idea what might be going on? I have an appt next week to get it checked out since it seems out of my know how but thought I would check here also.  

Because these are complicated, interconnected systems. It's not something a layman would understand.   However, if the reader understands what the manual refers to, then it may help for them to understand where to start.   Anyway,  DTC stands for Diagnostic Trouble Code(s).  SJB stands for Smart Junction Box. You know it as the fuse panel (although its much, much more than that.) BJB stands for Battery Junction Box, a fused power distribution center  located in the engine compartment.  DSM stands for drivers seat module. This module handles several different, somewhat interconnected systems. For example, when you unlock the door, this module moves the drivers seat back and resets the mirrors, etc. It does this depending one which FOB your unlocking the door with. There are other functions it controls as well.