GTPprix
Full Member
- Joined
- Nov 13, 2011
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- 226
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- Location
- Metro Detroit, MI
- Buick Ownership
- Lacrosse CXS
Unfortunately the old nav radio rules no longer apply with GM Global A cars 🙁
The days of simply reflashing the radio at the dealer level are long gone with Global A Radios. The dealers no longer have the ability to change the VIN in a used radio and the vin actually no longer denotes what kind of vehicle its from. The calibration itself actually controls all of that now.
True they send them to a third party since they no longer have the tools at the dealership to do anything with them like this (I'm one of those rare third parties) I'm also the only third party that can unlock other functions.
We've done quite a few of the Global A Camaro radios but the GM Trucks arent Global A yet they are actually a hybrid radio that still uses the old style GMLAN so they can get away with the old style procedures unfortunately still 🙁
Key points:
1 - If you have a car that did not come with nav from the factory, you will need to re-flash the BCM so that the car "knows" it has navigation. In this case, you will need to make sure you get all the necessary parts that a non-nav car would be missing (IE the proper control panel, screen, and GPS antenna), or else certain features may not work. If your car came with nav and you are simply upgrading to a newer unit, you will just have to have the nav unit programmed with your vehicle's VIN. This will unlock the theftlock (which is a guaranteed issue if you buy a used or salvage unit). Also, the GM "global nav" software is multi-platform, so the VIN tells the unit how to configure itself for the car it's going in (I.E so the unit shows a Cadillac screen in a Cadillac, or a Buick screen in a Buick).
The days of simply reflashing the radio at the dealer level are long gone with Global A Radios. The dealers no longer have the ability to change the VIN in a used radio and the vin actually no longer denotes what kind of vehicle its from. The calibration itself actually controls all of that now.
2 - Most dealers do not have the know-how to do this properly. It's not SOP for GM's tech network...it has to be done "off the books" by a guy who knows how to do that kind of thing. Some are willing to work with you for the learning experience. But in all cases, it's going to be expensive on both the parts end and programming end unless you have friends in the right places.
True they send them to a third party since they no longer have the tools at the dealership to do anything with them like this (I'm one of those rare third parties) I'm also the only third party that can unlock other functions.
This is not a rare thing, if you search the GM truck forums you will see that guys are dropping the 2012 MyLink nav units in their 2007-2011 trucks with little issue (for them it's just a new unit and GPS sensor plus programming). The Camaro guys are figuring this out also, and putting the 2012 -2013 Nav unit in 2010-2011 Camaros that did not have it even as an option.
We've done quite a few of the Global A Camaro radios but the GM Trucks arent Global A yet they are actually a hybrid radio that still uses the old style GMLAN so they can get away with the old style procedures unfortunately still 🙁