fusion2013 Posted March 13, 2013 Share Posted March 13, 2013 The navigation system in my current car uses dead reckoning when in a tunnel, parking garage, etc. Does the My Ford Touch navigation system use dead reckoning when satellites are not available? 1 Quote Link to comment Share on other sites More sharing options...
JSKershaw Posted March 13, 2013 Share Posted March 13, 2013 I know for a fact it does. I have been in the parking garage at work and it uses the last known location to start plotting a route. Works well and then once it gets a signal it will recalculate your route. I have not had any problems with my GPS picking up a signal within 30 secs. 1 Quote Link to comment Share on other sites More sharing options...
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