A:AnswerIf you don’t know the PIN or the security location where the PIN was set, the device will need to be sent to Garmin for service. Contact Garmin Product Support for further assistance: http://www.garmin.com/us/support/contact >JF
A:AnswerNo. This model does not have bluetooth. The ones with bluetooth can connect to smart phone app SmartLink, probably through that you can send maps (not sure though).
A:AnswerNo, the nuvi 57LM doesn’t include any truck specific routing. The Garmin dēzl™ series includes detailed maps for North America that also include truck-related restrictions – like bridge heights, sharp curves, weight limits and more – and related information for most major roads and highways. >JF
A:AnswerYes, the Nüvi 57lm includes the "Where I've Been" app. It allows you to view a record of the device's travel history. It will display your routes on the map as well as places you've stopped. "Where I've Been" will display only up to the last ten hours driven. >JF
A:AnswerNo, the nuvi 57LM doesn’t include any truck specific routing. The Garmin dēzl™ series includes detailed maps for North America that also include truck-related restrictions – like bridge heights, sharp curves, weight limits and more – and related information for most major roads and highways. >JF