GPS has lost it's memory, adress book and recent trips

The GPS is not accurate with your location which means the time on the GPS is incorrect.

This required an Update

could be a simulation settings was still ON mode, thats why it will not do tracking your way point.

Yes this is a little confusing!! It is set from the Nav window. Depress Nav and scroll down to clock.

Depress clock and you can daylight savings option or set clock

Hope this helps?

Other Jeep Radios
1. Press the MENU hard-key on the right side of the
radio.
2. Then press the System Setup soft-key to get to the
System Setup menu.

Set the Time
1. Press the time soft-key in the lower left corner of the
screen.
The minutes are set by the GPS system.
2. Press the Set Time Zone soft-key to change to the
desired time zone.
3. Press the Daylight Savings soft-key to switch Daylight
Savings on or off.
It is possible to set up your own time (ahead or behind
actual GPS time), by pressing the USER CLOCK soft-key.
NAVIGATION 15

I have nav in my 2015 Cherokee. To adjust gps volume, I press the arrow to make it talk, and adjust the gps volume while she is talking. Then the volume defaults back to the radio. See if that works for you. Hopefully the nav is the same.

read the operator guide yet?

it cant the radio is bad

If its an after market GPS then it shouldn't matter. your GPS is junk

That is very possible.

If your GPS is not finding any address, then the most likely cause is that the wrong country map is loaded or the map is corrupted as finding an address does not rely on getting any satellite signals (your GPS should at least show your home location or the last known position on the 'correct' map): I suggest that you look at your specific GPS user manual to find how to check that you have the correct map loaded: if it is the case, then find the instruction on how to 'reset' your GPS as its software may be corrupted.
Hope it helps.

Car-Part.com
GPS/TVscreen/info center
L and L Auto Parts, Inc. USA-NC(Grover) Request_Quote 1-704-487-7401 / 1-800-289-5474

Hope that helps.