Radio navigation system

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

Chris, they had a few problems with Escalade nav,/radio usually expensive fix and sometimes doesn't last, a lot of people end up going aftermarket.

XL7 not XL-7 (the dash matters big time)
i'll guess its a dash.7
REDUX
in your post you said fuses are good (tested too)
have you checked and reseated the connectors on the OBJECTS that fail>?? (that is free to do)

we now learn many things fail on car,
even HEAD LIGHTS?????
and no statement of what works. in total!
does car drive perfect night and day?????
just a clue here, and win big. huh>?

I can't drive your car and see all those many things failing,& that are. ok .. and what does not fail....

but this car has CAN-bus (or the like)
a NETWORK for sure, and bus structured.

and does not work like some 1990 Vitara.
at all, not even close to same. (forget them...)
it's a BUS system.
each switch you throw sends a command on the bus.
it's failing I bet because of communication errors
that you fail to see because you did not use a real scan tool at the time of failure.
it must be scanned while failing !

cant fix it if its not broke,...(unless you drive
scan and log data. like i do all the time for all intermittent of any kind....)



does it fail engine running?
is running battery voltage at 13.3 to 15vdc
if voltage is low all computers in car will go nuts. (same with your cell phone)
this is a fact and what i check first?
valid battery voltages first.
2nd after fuses, (done already)
then scan it. using a real scan tool
not some relic.
a real tool can see all CAN buss errors
U codes top the list.

P1,p2, p3 and B codes too.... all seen.
failing.

you can buy tools
rent tools
or get the car scanned failing at any ASE shop.
car parts store may have junky or relic tools.
(i can name 10 that are)
some tools only do old federal P0xxx codes. say some old 1996 tool.

try a real shop and win. really
http://www.ase.com/Landing-Pages/Car-Owners/Find-a-Repair-Shop/Shop-Locator.aspx

The only thing that you can do is remove the unit and send it out to a factory approved repair shop, that is it no other choices.

Navigation is hard, isn't it? In Settings where to set the navigation path, before is ok,electrical tester

I have 2010 Porsche Cayenne and Nav screen just goes black and turns back on - sometimes it does it few times a day sometimes its working fine ..any idea?

I have experienced many electical demons with all my British cars. The nav units can and do fail. I had a goofy one this summer and the only way it got fixed was to replace it. The module not the head unit

solved the problem after speaking to the main dealers, disconnected battery for fifteen minutes then reconnected which rebooted system. Range rover say just like your home computer its got glitches so rebooting works, common problem in cold weather.

Sorry, no answer. But you're not alone, my 2006 is displaying the same issues; everything works, just no sound. Used to take a few minutes for the sound to start after turning on car, time increased to point that it the sound just doesn't work at all. Clicking noise is noticable when system is powered on.

Your radio/nav system needs a code. Go the your dealer's parts department , give them the VIN of your car( should be free $0). Punch in the code through the car radio and your radio/nav system should work right away.