XC90 towbar coding
 

Does any software changes need to be done for a 2017 XC90 when fitting a towbar? I am trying to decide the best way to go, either to get something like a witter with dedicated 13pin electrics and fit it myself, or get a company to do it some saying including coding, or to get a second hand volvo model from ebay and fit that myself.

You need to add a "trailer module" with the electrics and that needs a software update on the car to recognise it.

You can get generic lighting modules for some models but the Volvo system is by far the best as it alters the traction control settings etc. when towing. If you're just going to be towing a small trailer to the tip then a generic kit should be okay but if you are towing big heavy stuff or caravans, you are much better off with the proper Volvo set up.

Some dealers sell the new Volvo wiring kits on ebay, there's no reason why you couldn't fit a second hand towbar and a new kit yourself and then get your dealer to program it.

thanks, is this the module you are referring too?
https://www.ebay.co.uk/itm/2016-MK2-...Condition=3000

Yes I think so... if that's off a Mk2 XC90 than that's the one...

Following on from this topic, if I were to purchase a second hand, genuine Volvo electrically deployable tow bar and fit it myself, would there be any additional coding required, or is the genuine tow bar just a ‘plug and play’?

No problem fitting the used towbar but it will need a electrics kit and a new trailer module and software added at the dealer .
all instructions here;

https://accessories.volvocars.com/en...CC-515637/2017