I know with my Jeep Wrangler both the 4 and 6 cyl are rated at 2000 lbs. The old bodied style Cherokees with the 6 cyl is rated at 6000 lbs.

Like edyavno said they are limited by wheelbase and weight of the vehicle.

Wranglers range between 3105 to 3316 lbs (curb weight) and a wheelbase length of 93.4 inches.

The VX weighs 3955 lbs with a wheelbase of 91.8 inches.

So I based on assumption the VX would be around 2000 lbs as these two vehicles are very similar.

That's not to say that the VX can't tow more I would just be very careful and a good set of trailer brakes maybe advised.

JAFO