You have had the front 2 tyres changed, I would check the sensors there. Was the light on when you picked it up?
Certainly you would need to reset the tyre pressure sensor as the tyre diameter will have changed and it is measured by wheel rotations.
The sensor obviously affects traction control , ABS and Tyre pressure indication so its extremely likely to be that.
I would disconnect the wiring to each sensor and fault check it as you do so.
Also you should check the cabling to them.