Tom Tom Sat Nav and towing

For those of you that have a standard TomTom sat nav, but are able to use the My Drive app to programme in journeys, my App has just been updated and a new facility has been introduced that enables you to programme in the size and weight of the vehicle etc, essentially the caravan version of software that I can see.  Not yet updated the actual sat nav software but it has told me an update is pending so it may be that you can do it direct on the sat nav as well.  Worth a look.  I have attached a screen shot