Navigation not operational
Connections to the navigation system are incorrect.
Check the connections with the navigation system and connect the cables correctly and firmly. .

System not finding GPS satellites
Make sure antenna is plugeed into the SNAV-1 unit
Make sure the antenna is screwed in properly to the SNAV-1, back it out and try again but don't force it

System not tracking movement of vehicle
Make sure antenna is plugeed into the SNAV-1 unit
Make sure the antenna is screwed in properly to the SNAV-1, back it out and try again but don't force it

How do I update the maps?
Refer to the SNAV-1 owners manual

Cannot enter navigation mode
SD Card is not loaded with data
Reload the data and ensure the SD card is in the correct location

There is no voice guidance
The vehicle has deviated from the route
Check the route guidance display on the current position screen
Move back to the route. Search again fora route..

IR remote does not work
Dead battery in remote control - Replace battery

Audio output is audible but the navigation voice guidance is not
The volume is set to “0” under Guide Speaker setting
Adjust the volume under Guide Speaker

All other errors or questions
Refer to the SNAV-1 manual

Unit says it will take 14 hours to get across the street, what needs to be adjusted?
You must set the clock of the Navigation feature , refer to the Navigation section of the manual
for clock adjustments