Teucer

We've only had our LBX for a few days (first Lexus). Whilst we're really enjoying it there seems to be an issue with the SatNav: it doesn't appear to know about the London congestion zone. Even with "Avoid toll roads" checked it is still routing us through the zone. Am I missing something obvious, or is this a real issue? Also, I tried to update the map and I get "Problem with map update. Please contact your dealer".