I had the dvd player/radio /cd player replaced in my 2007 Yukon, the cd player would not read discs, the dealership ordered a new radio & now the dvd player reads disc region error & will not play any of my dvds however, the old unit would play the same discs. The unit does not have navigation built in.

The CD/DVD unit has a microprocessor in it that has to 'talk' to the radio and control system elsewhere so if it is not working, neither will the radio.

have you tried to use a cleaning disc to clean the laser eye that reads the discs?

I had the error code no. 1 in my 2007 Toyota Camry Hybrid. It has the CD radio unit with JBL system. It will not eject the CD, or play it. I removed the entire radio/CD unit and replaced it with a used excellent unit bought off of ebay for $100, and the replacement works fine. However the replacement is also 7 years old. Therefore I would not be surprised if it failed again. Prior to the error 1 I had intermittent error 3 codes, which had the same effect: no playing of the CD, unable to eject, and unable to insert other CDs. Sometimes the error codes would go away, and the function would be normal. But once it started, I think it was on a downhill path. A new replacement is nearly $2000. Used are about $100 to $200 or more depending on the seller and condition of the unit. Youtube has videos on how to replace the unit which only requires simple tools: it is not difficult but takes about 45 minutes to an hour. If you do it you have to put the car in gear to move the gear shift gate, which requires the car to be on, so you should have the parking brake on for safety. One alternative is to send your unit to a repair company but that might cost more than simply replacing the unit. Good luck!

I know what this is, when you changed your battery you reset your in dash cd player. Shuting off the security code. you need to take it to a shop or at the worst your local Dealership and they can reset the security code on your radio and it should work proper again. This is an anti theft device that disables the deck if it is removed from the dash Or from power. Hope that helps.

It looks like a newer DVD is available at http://gmnavdisc.navigation.com. I don't know if a newer DVD is available at Ebay, but you could check.

Hi i have the same issue same 2004 model year. Its reads...
"Unable to read data, Check if map DVD is Correct"....what? I cant play a dvd but it plays all my cds so far. Can someone please help me with this problem!!! Any Solutions?

Subject: Radio With Six Disc CD Changer Does Not Recognize Loaded CD And Displays An "INITIALIZING" Message, CD Will Not Play, CD Cannot Be Ejected, Or Disc Icon Does Not Illuminate (Reprogram Radio)
Models:
2005-2006 Chevrolet Avalanche, Suburban, Tahoe
2005-2007 Chevrolet Colorado, Express, Silverado Classic, TrailBlazer
2005-2006 GMC Yukon, Yukon XL
2005-2007 GMC Canyon, Envoy, Savana, Sierra Classic
2005-2006 HUMMER H2 with Six Disc CD Changer Equipped Audio System (RPO UC6)
Condition
Some customers may comment on any of the following conditions:
• The CD loaded in the radio will not play.
• The CD loaded in the radio will not eject.
• The disc icon on the radio will not illuminate.
• The radio displays an "INITIALIZING" message for approximately 30 seconds after vehicle start up.
Important: Do not attempt to play CDs with paper labels on them in this CD player. The labels may warp or wrinkle and jam the CD player mechanism. Refer to the Compact Disc Care and Cleaning procedure (Document ID# 1656123) in SI for more information.
Technicians are to reprogram the radio with new operating software using the following procedure:
1. If the radio has a CD(s)2008 General will be necessary to reset the radio and remove them
before the radio is reprogrammed. Remove and reinstall the radio fuse to reset the radio and then eject the CD(s). If cycling the power to the radio does not allow the CD(s) to be removed, the radio may have another failure that will not be corrected by the reprogramming procedure that follows. Refer to the Diagnostic Starting Point - Entertainment procedure in SI to begin your diagnosis of this failure to eject CDs concern before reprogramming the radio.
2. Reprogram the radio using the Service Programming System (SPS) with the latest software available on TIS2WEB. Refer to the SPS procedures and the Radio Programming and Set procedure in SI for more information. As always make sure your Tech 2® is updated with the latest software version.
3. Verify proper operation of the radio and make sure that all CDs can be ejected.

Hope helps (remember to rate this).

you may have to use needle nose pliers to pull them out or remove the radio and open it up and remove them also take a look at the drive belt it may have broke, there are many electrionic places that will repair it if you remove it and take it to them, most of the one i run into broke a belt or 2cds were jamed inside it.

Did you ever get an answer? I have the same problem on my 2007. The dealer told me it's a design flaw and that's how it's supposed to work.

We had the same issue with our 2007 Yukon Denali XL. Died on us twice after sitting for short periods of time; once we watched a DVD with the engine off and battery died within 10 minutes. The dealership kept it overnight to troubleshoot why the battery died so quickly. They said the radio was "pulling" too much from the battery. (They supposably fixed it) But again a few days later the battery died again after sitting overnight. We brought it back to the dealership and they brought in a GMC "expert" to replace the entire DVD/CD/Navigation system. They also replaced our battery with a much larger battery, similar to the ones that GMC puts in there diesel trucks. They had our Denali for 5 days, but it appears to be fixed now.
Getting it fixed correctly wasn't without headaches, but it was all covered under warranty, including the battery. And they are updating the nav w/ the new edition disc as well for no charge.