Electric4Me wrote:I'd love to hear more about any concerns about the air bag butt pressure sensor and the seat heater. I'm also not sure what the seat back has to do with that.
Neither do I.
That is, I don't know how these systems work or how precise they are but I think they can be affected.
Specifically my concern comes from two sources.
1) We have an Acura TL on which the passenger seat heater does not heat the back (only the bottom) and I think MDXs of the same model year behaved the same. Somewhere I found an explanation stating that the heater could interfere with a side airbag sensor so they intentionally disconnected it. The sensor in question is the one that turns the airbag off under certain conditions such as when an child's head is in the way. Now Acura has apparently figured out a way around this because the latest models of TL and MDX now heat the entire seat from what I have observed.
2) Then there are the bottom seat pressure sensors, which detect when an occupant of sufficient weight is in the seat, again turning off the airbag if the occupant is too light. Some DIY installation guides specifically tell you to cut around these sensors if they are visible just beneath the cloth where the airbag goes. Others say have the sensor zeroed out or provide instructions to the effect. Realistically I do not see how the weight of a thin piece of material would matter in this case but I suppose there could be other factors like the added insulation or heat from the material.
As I said, I know very little about these systems so I was curious if anyone on the forum has more knowledge or has had professional seat heater installation advice, etc. If you say you've noticed no adverse effects such as the side airbag light coming on mysteriously, good to know!