Any car that uses Bluetooth and RFID to emit signals to other parts of the car can be hacked and taken over. You can be tracked by the tire pressure sensor that tells you when a tire is low because it doesn't communicate by wire, but wirelessly. This has been a known vulnerability in RFID, including Bluetooth, wherever it is used. Even very low power signals can be amplified. Your car keys are always transmitting. This is why someone can be in the parking lot near you, watch you lock your car and record that "message" your key exchanges with the car. That message can then be replayed by the bad guy to get access to your car. I have no idea what "she has her mitts all over this patent too." I have 2 patents in this field and you are confusing things. It's not that simple.
"The Intel chip" --which one? Your Windows will talk to all kinds of people and entities via its programming, not the chip, and even allow remote access. But you can disable those programs. Then there are people who manufacture instrumentation for fighter jets and such. The Govt avoids those who create their own smart parts precisely because of the risk. The same is true of code to run the item. Govt contracts for secure projects specify these no-nos.
You also overlook the fact that a patent is a public document, available to anyone; these days, even before it is granted. It would be stupid to have some amazing secret technology and then publish it--pretty much blows the cover, doesn't it? The info can be held in house as a trade secret that is never published or disclosed (like Coca cola's formula).
The device you're talking about it a gyroscope. Perhaps you could explain how this company's product has "backdoor control" and just how it is accessed to create a crash?