Thank you for that definitive answer. I failed somehow to spot the answer in this thread. To confuse me further, with R13 in place I have recently had Waze behaving correctly with one particular combination of Waze, GM and AA. Then it stopped working with a later combination of updates. As an aside to this thread, my current combinations of software versions, on the car cause LKA to be active on initial power up, but on applying the footbreak, it turns itself off. I'm hoping that updating to R16 won't leave me LKA active. The QC of the cars software is lamentable.