Hitch retrofit

[BeachBoy]

Orbit can flash ECUs but not all the ECUs are tested and validated.  The hard part finding the correct SBL and Data and Exe vbf files.   Drop an email to support maybe they can help you. 

But if they cannot you still have a solution. 
Here is the installation instructions for XC60 T5.  The SW part number you need is 30644823 and it's around $40. If you are living in US, you can get VIDA subscription and install the software yourself.  It should detect and give you correct software in the HW changes TAB.  
If you are not living in US, just visit the VOLVO service, they should be able install the software since it is an optional official accessory. 
Just remember to revert back to original settings before either of the two options above.  If you do the official way you do not need to disconnect the ECU every time you visit the service.  If you don't disconnect the module and just revert back the changes to original,  you might ran into issue (blocking the car) with the Volvo service depending on the VOLVO policies in the country you are living in because VIDA will report the new module you installed.

Once the module is activated (on any car) that should not be an issue.
My car has a used module (so initiated on a different car) and I revert to OEM at dealer visit (hitch stops working but I do not have any of the errors mentioned here). They didn't say anything (yet).

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