Turbostig

Hey everyone, we use our G6ET to tow a double horse float, does the job no worries. Only thing is it could probably do with some airshocks but not sure waht that will do to the ride quality. On a side note I have had a brake kit installed as well and ever since we keep getting 2 warnings comming onthe dash every now and then, even witht the trailer not connected, any ideas anyone? Cheers Turbostig