Hi, when ever I drive it on a hilly road it seems it knocks it into fail safe. It doesn’t like hills at all. Yet tows my horses with no problem what so ever. I visit my sister once a month and I have to go over the west penine moor. It’s that same road every time. No I can usually switch it off then back on and it’s fine but this time it remained in failsafe and I had to crawl it home. It drives lovely until I use this road. I cannot get my head around it so I took it to my mechanic who plugged it in an those codes are what came up