Do you recall my post about Mr Dick Van Dykes headaches due to his Titanium implants? Thats caused by amplification of EM radiation, most likely from cell phones.
Those wireless sensors emit more EM radiation than people are already exposed to. If you have an electric car thats even more EM radiation exposure in addition to cellular, wireless, and bluetooth.
In same cases, combination of EM radiation leads to metal failure, known as the Hutchison Effect. This is all stuff I warn about over at the Tesla board in addition to it causing SUA/thermal runaway.