I noticed that whenever i used to exit the ring road from the airport the navigation system would go haywire and would cancel my route (pretty annoying especially when you're coming from islamabad and want to see your average speed and top speed). i asked the honda navigation guy and he asked me to call the navigation company and get a free update. i called the jahur town tracking world office (042111266666) and asked about any update. and they said, yes there's a free update due for june 2013 civics.
you dont need to know the address, just search for "tracking world" in the navigation system and it will direct you to the office. The guys were very helpful there and took just 5 minutes to upgrade the system. the navigation system card was taken out and a new software was added.
result: slightly detailed maps, yet to check it on the ring road.
excellent service so far. i've suffered the honda navigation in my fathers previous car a few years ago and it was a headache (https://www.pakwheels.com/forums/non-wheels-discussions/36373-honda-nav-trak).. that worked for just a few months and was totally useless.