This things are garbage... We have them in our MP and a lot of them haven’t even survived their first FTX... Lots of electrical problems like every other Oshkosh vehicle... They’re military “Mercedez Benz” (all the luxury with all the unreliability combined).

The gas cap light will eventually come on again... Its not the gas cap that is bad... Its actually a valve in the engine under the air intake manifold that gets firty and sends that code... All you gotta do is take the valve off, clean it with carb cleaner and code will go away...