How can I tell what is on my Tow Package?

[MarkWilson]

I just bought a 2005 XC70 that has a trailer hitch. How can I determine if it has a brake hookup, transmission cooler and what the towing capacity is? My seller did not know. The tow package came with the car and my seller bought it new. I'm a newbie to this forum. I think it is fantastic.Thanks!

[sjonnie]

Your Volvo only has a class II hitch, capacity 3500lbs. Doubt it has either of the above accessories. An electric trailer brake controller would be wired into the stop light switch circuit located under the dash. The transmission cooler will be plumbed into the transmission oil cooling circuit.