Nav Firmware Update - DVD Set GM# 15943724

ECha3 said:

As known by many owners of 2005-7 STS with Navigation (RPO YQ4) the clock fix firmware circa 2020 breaks Voice Recognition & various other functions depending on steering wheel button layout. This is the fix available on the web at https://tis2web.akamai.gm.com/radio/STS_GPS_MY_08_Fix.zip. It did fix the clock issue, but as I am informed the GPS date/time format has since been corrected, I'd like to restore my cars to the previous version.

I was running a second generation firmware (NAVI OFC15) distributed to dealers upon request in 2007 to improve Bluetooth, VR performance, etc. I want to try re-installing that Nav Firmware Update but my dealer no longer has the required DVD Set GM# 15943724 as described in TSB 05-08-126-001A & Doc# 1889058.

Anyone have a DVD set that I might get a copy?

I'll try another dealer, but I'm not optimistic. Anyone able to help?

Thank you in advance,

Charlie Smith
Charlie, what version of software is 15943724? Will this allow you to use the last Navigation disc 23286274 Ver 10.0
There is a dealer in Connecticut that has the 2 disc. I'm trying to update my firmware so I can use the last map update listed above.
Thanks,
Bob

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