Although this isn't specific to our 80's Buicks, it is to some modern day vehicles. I have known that hacking into a vehicles computer network has been possible with the wireless technology, I didn't think anyone would be able to do it. Well some people did and they were able to take control of vehicle components that are computer controlled and on the various networks, CAN and Flex-Ray. Although the OEM and other global automakers are switching over to new safety standard that is supposed to help prevent such things from happening.
https://www.impomag.com/news/2013/0.../hackers-find-weaknesses-car-computer-systems
https://www.impomag.com/news/2013/0.../hackers-find-weaknesses-car-computer-systems