Way back in 2004, GM discovered that some of their cars had a bad ignition switch that would turn off for literally no reason, cutting power to anti-lock brakes, power steering, and airbags. Your car powering down out of nowhere may not seem as dangerous as, say, it suddenly bursting into flames, but it has led to the deaths of at least 13 people since these cars have been on the road ... and GM, in the grand tradition of "if we ignore this, maybe it will go away," didn't initiate a recall until 2014. Now they're embroiled in approximately all the lawsuits, have recalled millions of vehicles, and s**t-canned a dozen or so people in the process.
Incidentally, some GM cars do have that "suddenly bursting into flames" problem we mentioned, as one man found out when he got a recall letter half an hour before his car immolated itself.
"And you didn't immediately leave it in a ditch?! You irresponsible bastard."
Other recall letters weren't so timely. In their effort to spam everyone who might have ever touched a faulty ignition switch, GM ended up sending recall notices to people who have already died as a result of said ignition switches. A GM rep was quick to apologize to the re-traumatized families, which was almost certainly followed by a pregnant pause before he asked, "So you won't be bringing the car in, right?"