Radio clock problem

[blazzinbird]

yesterday I unhooked the battery to replace a air bag sensor. Replaced that and got everything hooked back up. Got in the Denali and noticed my clock showed ‘:’ no numbers. I tried to go in and adjust the time, and I hear a beep, but still no numbers.

It is a 08 Yukon Denali with navigation touch screen radio.

Everything thing else works but the clock, and it’s driving my wife crazy.

 

[blazzinbird]

Ran by the stealer today. The service manager who also happens to be my friend told me to disconnect the battery and touch the leads together for 5 seconds to reset the computer. The clock uses a logic circuit he said.

 

[Tonyrodz]

Ran by the stealer today. The service manager who also happens to be my friend told me to disconnect the battery and touch the leads together for 5 seconds to reset the computer. The clock uses a logic circuit he said.

Did it work?

 

[blazzinbird]

I’ll know tonight wife has it at work.

 

[blazzinbird]

Now I’m worried it will lock the radio

 

[bfourman]

Mine did the same. Some interweb searching came up with this link, I used the first code and on page 2 of options it let me set the clock. When I exited the menu I had to adjust because I didn’t get the GMT conversion right but it worked.

http://www.tahoeforum.com/showthread.php?t=9520&page=1

 

[blazzinbird]

So magically after a few days it started working again.

 

[PatDTN]

I was going to post about losing the time on my 2009 Tahoe LTZ when I replaced my truck's battery a week ago. I've driven a fair bit since then and still no clock so I'll try the secret keypad trick in a few minutes.

 

[PatDTN]

This worked for me but I thought I'd point out that reading is fun duh mental. First try when I exited the menu my clock showed 2:58 which is 5 hours too early. 5 rang a bell and I went back in to read at the top of the screen to set the time GMT. Doh. Add 5 hours since Eastern Time is GMT -5.

Thanks for all y'all do.

 

[blazzinbird]

So our clock is showing now, but it isn’t changing times. You have to press the time on the screen and the time updates. So annoying.

 

[PatDTN]

Mine is back working although I know it's a minute or so off only because I didn't set it right.

Pat in Tennessee

 

[blazzinbird]

We left our house Christmas Eve time wa 8:31. When we got to Chicago 4 hours away it was 8:31. Time travel lol

 

[blazzinbird]

Mine did the same. Some interweb searching came up with this link, I used the first code and on page 2 of options it let me set the clock. When I exited the menu I had to adjust because I didn’t get the GMT conversion right but it worked.

http://www.tahoeforum.com/showthread.php?t=9520&page=1

So update I followed the link, and boom everything is working again.

 

[KATfishing]

I need to do this... 08 Yukon Denali -- Shop replaced my starter. Same thing, everything back but the clock!!! I too get the ":" and nothing but beeps. So glad you all have found a solution. THANK YOU! I'll try it first thing in the morning

 

[KATfishing]

OK - I couldn't wait until the morning... This worked like a charm. In case the link is ever broken:
- Press "MENU" button on the right.
- On screen, touch "Display" at the top.
- Touch and hold finger in the lower left corner of the screen for about 5 seconds... key pad should display.
- Enter 295660 to get diagnostic menu.
- For clock, go to second screen and select "Time"... Select and enter time info in GMT. Time will appear in GMT. This means you need to convert your time to GMT, not vice versa. I am in the CST zone, so GMT is 6 hours ahead. If it is 5 p.m. CST, I actually need to set the time for 11 p.m. GMT so that when I exit the menu and the navigator finds my location, that my time is correct. It doesn't allow you to pick anything other than GMT zone in the diagnostic menu, which is why you must enter your current time converted TO GMT in this menu.Press "Set." (For me, this didn't exit the menu. I wasn't sure it had even actually set after I pressed it, but I exited by pressing the hard Audio button to get back to normal menus).

THANK YOU AGAIN TO THE OTHERS WHO HELPED US OUT. This is a great one for the archive!

 

[bojified]

Worked perfect. My clock display disappeared after replacing my negative battery cable for a new one. I have had the battery disconnected several times before but had not encountered this issue.
Instructions in link were right on. Now printed and in my console.
Thanks!

 

[90PROFX]

Just found myself in this same situation........NO CLOCK, after a battery run down. I'll try this today and report back........2011 Tahoe LS

 

[90PROFX]

I love this site.................Issue fixed, thank you for sharing this info. Obviously, a dealer secret since it's something more than a simple fix requiring a code.

 

[dnt1010]

Wow this forum is amazing. I had disconnected my 12V to replace the Hybrid battery pack in my 09 Tahoe this last weekend. NO time display when I hooked everything back up. Touched Menu button then Display button then touched bottom in left corner of screen for 5 seconds and entered code 295660 that opened up the menu I went to "set time" on 2nd page and entered the date info and my local time (adjusted from GMT to CST) "AWESOME" Worked like a charm. It was very tempting to mess with some of the other settings but I resisted LOL.