The problem they found was with an item known as an Illumination module which controls all the lighting in the car.

This box apparently sits behind the headlight switch.

There was a problem with this box and apparently was detected as a problem with the BAS system. Something to do with the brake lights being part of the BAS system and since the brake lights are controlled by the lighting module, the problem was detected by the BAS system.

More details are coming from my mechanic when we next sit down for a unrushed chat over lunch.

Sorry to hear about your "rattling" problem, Texex91.

Check to make sure it's not the multi-purpose tool rattling. I have heard that some dealers put the tool in the compartment where the TireFit is in but there really isn't a molded holder for it there, so it might rattle.

But the fin shouldn't affect that apart from perhaps higher speed causing more vibrations, so I'm probably not guessing right.

BTW, I did get a "Thank you for your patience" gesture from Chrysler Customer Assistance. So again, my salutes and "A+" for effort on all parties involved when the going got tough.