If there's one car manufacturer I'd blindly trust with my safety that's Volvo. Their cars might not be the most reliable, or the most exciting, or the most luxurious, or the most innovative, but when it comes to safety they're the point of reference.
I can't find the article right now, but I believe it was Volvo the one that wanted to use Baidu's self-driving platform. The chances for any Chinese software to come pre-backdoored are too high for me to take a chance like this with a self-driving car over which I'd probably have little to no control if it was taken over by hackers.
All self-driving cars are going to be security nightmares. But yeah, it's better for it not to have a built-in backdoor in addition to the normal set of security flaws.