I removed the dash panel myself with the help of my son and few helpful hints from Ryan at Cool Tech LLC (thanks Ryan!), not a difficult job at all but does require patience and know where to place your fingers and give a slight tug to dis-engage the retaining clips. I'm no expert by any means but I found the following helpful:
Pull back and slightly out of the way the weather strips next to the lower side of the lower dash panel (no need to remove it).
Dis-engage the passenger side lower clips first (note 1: don't remove the panel, just a slight tug to dis-engage the lower clips, have someone you trust hold the panel against gravity)
Dis-engage the driver side second (same as note 1 above) and work your way to the right and towards the area above the radio and keep going towards the passenger side until all clips are dis-engaged.
I found the section above the radio to be easier to dis-engage using the method above, again make sure you have someone holding for support as this area is the thinnest and prone to de-form or break.
The most nerve racking part is removing the metal supporting panel as the clips are hanging to what looks like a cardboard box material, and these 3 clips push away from you (towards the front of the car) to dis-engage (two hands for each clips, one to hold on the non metal part and one to push the panel away from the non metal part (see picture below). Apparently my lower dash panel have an expiration date :rofl. (picture below as well).
I don't see how the passenger side airbag module can be removed without removing the lower dash panel. I went as far as I want to go and will leave the rest to the dealer's tech. One note: The passenger side air bag module's retaining 2 bolts are a pain to get to so hopefully the tech have some surgical tools to access them. :cheers