11-28-2012 04:30 PM
I think Garmin's "Lifetime" updates last about 2 months.
12-12-2012 05:05 PM
How long does a "Lifetime" Map and/or Traffic upgrade last?
For as long as such data is available for your unit or your unit reaches end-of-life and is no longer supported by Garmin. That roughly translates to several years.
12-12-2012 05:27 PM