jshot00

I insert the nav disc and the msg comes up please insert Navigation disc. Tried both slots! same msg, Any ideas on what is going wrong?

4SUMERZ

If your DVD for the Nav is not scratched, then it could be that the DVD player laser lens is dirty. Try running a DVD cleaner through the slot, and then retry the Nav DVD. Those can be bought at amazon, or stapples, or just about anywhere including Walmart, etc.
Hopefully, that will solve the issue.

EVRose

Or you could try a can of compressed air shot into the slot.

Cybernetic Medic

Before you try "fixing" the NAV/DVD unit I would try the disk in someone else's NAV just to be sure it's not just a bad disc.

Gearhead Jim

Almost every time I insert a new nav disc (each year), I get the same message.

Step one is to just sit back and wait a minute, usually the message goes away by itself.
Occasionally, I have to eject it and re-insert, then wait another minute.

If you still have the problem, the suggestions above are worth considering.

CSixDude

Ive had this problem. Tried compressed air with no luck. Tried to see if unit could be taken apart and lens manually cleaned but found it was almost impossible to get the unit disassembled far enough to access the laser lens. Gave up and dealer replaced entire unit. The said they have seen lots of problems with them and the same unit is used in other GM vehicles like Cadillac etc. It costs about $1200 for a new one. The replacement they put in didn't even last 2 months before it did the same thing. They put a third one in that was supposed to be an "upgraded" unit and it has worked good ever since.

I wish this unit used internal memory instead of DVD. Optical storage access in a vehicle is just asking for trouble.

Eritosthenes

If the shot of canned air doesn't work and you're sure the DVD is OK, try disconnecting the battery "+" terminal and wait 10 minutes. Resetting all C6 controllers like this sometimes works miracles. (You will have to re-register both driver and passenger windows after you reconnect the battery.)

jshot00

Mine is an 08 but I do have extended warranty!!

RC4G

Is it a valid OEM navigation DVD disk? Where was it purchased?

If you purchased anywhere else than from gm.navigation.com or a genuine GM dealer then you have most likely purchased a pirated DVD copy.

Kent1999

Copies are a shot in the dark... sometimes they work, and sometimes they don't, depending on disc quality, how they were burned, etc etc.

jshot00

Got it from GM

CSixDude

The problem isn't the disc, it's the Nav unit. GM has upgraded it 3 or 4 times already to try to fix issues reading discs. If you have an extended warranty I'd highly recommend getting the dealer to replace the Nav unit before your warranty expires. The have a diagnostic test they will run on it and they will replace it if it fails. Make sure they get the newest part number when they replace it because they have several part numbers in the system.

CSixDude

Johnny - By the way, I'd recommend you take it to Moritz Chevrolet on the west side of Ft Worth, near 820 and Camp Bowie. They do a lot of C6 work and are probably the best service center in the whole metroplex.

4SUMERZ

I have found in the past, that when I used Nero Express and Verbatim CR-R to make MP3's, that they would work flawlessly. Just a few months ago, using the same process (Default on Nero Express) and Verbatim CD-R, the CD started to skip, and freeze up. A store bought Audio CD would work OK. I was thinking maybe the laser lens was a bit dirty, so I used air in a can, and a CD cleaner, and it seemed to work on the MP3 CD...for awhile, then the same thing happened, skip and freeze up. Just for fun, I tried another copy program, IMGBurn, with a Verbatim CD-R, and it hasn't missed a beat, works great again.
I'm not sure why the copy using Nero Express suddenly won't work as it did, so it remains a mystery.

Now, I have used IMGBurn with Verbatim DVD+R-DL to make a copy of the original NAV DVD, and that has always worked A-OK for the past 2 updates.
It appears that IMGBurn is the go to copy program for the C6 Radio (for now) Maybe the next IMGBurn program update will **** that up as well.