I have a 2018 XF 35t. Bought used with 126k in March 2024. I encounted the odd electrical issue but it has gotten a lot worse in the last 2 months. It use to only be the auto start/stop mo functikningandthe radio would reset while driving.I thought it might have to do with the battery being original. I also backed into a co worker in March 2025. Only visible damage to the car was the rear valance around the exhaust tips loose.

Here is what I’m encountering now.

No cruise control

Doors unlock at speed over 60km/h

Special modes no available cause error for all forward facing sensors

Driver widow goes down but when attempting to bring up get error on dash drivers door open, interior light turns on and window only goes up 1/2in. Need to release switch and then attempt again. This continues until window all the way up.

Drivers seat will go up and down and back normally bit when trying to love forward get same issues as window going up.

When drivers seat warmer turned on get same dash and light issue as drivers window.

I changed the battary to one from Canadian tire that was same rating/size and type needed.

Colision centre scanned car but did not get any faults relating to drivers door issues.

Insurance company says issues not related to crash and won’t inestigate further.

So my question is, is there a module near driver seat that would give this type or problems? Is there on on the trunk?

I have not pulled any panels yet. I have checked the connectors on the truck around the battery and fuse panel.

 

What's the car's history? What state/city did it come from? Maybe flood damage? It may sound like overkill but I'd go through every connector, look for corrosion and clean it if found, use some good electrical contact cleaner and lubricant (like DeoxIT) when reconnecting. Pull on the wires to the connector on both sides to make sure they are seated properly. Just to be safe I'd disconnect the negative terminal of the battery while doing this.

 

It came from southern Ontario Toronto area. Carfax didn't show and reported accident. Was going to take a day and start driver area and then at the rear of the car and check all connectors.