As a counter point, the Toyota ECU in those Camry's occasionally accelerated uncontrollably had asserts and what not. When they fired the system rebooted. Fro

As a counter point, the Toyota ECU in those Camry's occasionally accelerated uncontrollably had asserts and what not. When they fired the system rebooted. From memory it took about a second to boot, so usually the driver didn't notice. Apparently it did that on a regular basis as it was overloaded, and sometimes it failed to meet deadlines. The acceleration problem was caused by noise flipping bits in the RAM the operating systems used to store state data. (The Toyota code was most immune to this because they duplicated their state by storing it in two different places, always compared on read and if it was different rebooted. But the OS was provided the the chip manufacturer, NEC which was a black box to Toyota - and it wasn't as conservative.) On rare occasions a bit flip would take out the watch dog process and the cruise control just after it decided to accelerate, and occasionally if that happened everyone in the vehicle died. Toyota blamed the deaths all sorts of things for a while - the driver, the carpet, third party accelerator pedals. Which to my mind was fair enough. They like everybody else had no idea what was causing it, but they knew their monitor / reboot if out of spec kludge worked very well so it was unlikely to be the ECU.