My ASEAN Free GPS Map Project

hi all ..
need to help , when i need to input coordinates , my garmin nuvi 1375t did't see coordinates icon ..
how to fix this problem , tq

Dear Sir,
I don't have a Nuvi1375T to check, but I am sure the owner's manual will show how to input search data in Lat/Long format.
I found a manual at this link.
http://static.garmin.com/pumac/nuvi_110 ... 400_OM.pdf