True very scary thought its bad enough if your engine stops running while your moving if you have power steering its very hard to turn the wheel .
Ever since cars were equipped with processors, they have had a "Safe mode" as a default should a CPU or one of the many sensors die. This would show up on your dashboard as a "Check Engine" or "Service Soon" light. Your car is now not using a processor and your mileage will be terrible, but otherwise safe.