Cars typically have a resonant frequency around 200Hz because of their cabin dimensions. Although there is no frequency marker on the EQ sliders, it is likely the bass slider. This range typically needs reduction, but you have it maxed. Hard to know if Tesla notch filtered it out, but this could be the source of why you think the bass was crapping out in certain ranges. Also adding boost to every slider is counter productive. I would recommend taking the bass slider down close to 0 and trying again.