Why is the cruise control light flashing in my Subaru Forester?

So I’m mulling over the idea of buying a used Tesla from a guy I know. He said he’s pretty certain that the old Model 3 he’s trying to unload has cruise control. When I asked if it has the Autopilot driver-assist tech package installed on it, he said no. Is he full of it?

Will I be allowed to use a personal check to make a downpayment on my car? I don’t know what kind of payment options most dealerships have, but I try to use checks for large purchases because I like to keep track in my checkbook. Do car dealerships take checks?

"Do I need another plan or should I add it to my car insurance? My new Honda Fit offers roadside assistance with the warranty."