2008 Nissan Xterra Towing Capacity

Trim	Braked Towing Capacity
X 4dr 4x2	2,273kg / 5,011lb~
S - Built Out as of 2/5/08 4dr 4x2	2,273kg / 5,011lb~
S - Built Out as of 2/5/08 4dr 4x4	2,273kg / 5,011lb~
Off Road 4dr 4x4	2,273kg / 5,011lb~
SE 4dr 4x4	2,273kg / 5,011lb~

How much can the 2008 Nissan Xterra tow?

As you can see from the table of towing capacity readings above, all of the trims that are mentioned can tow a braked trailer up to 2273kg (or 5,011lb~).

What does braked towing capacity mean?

When the manufacturer states that a towing capacity is "braked" they are referring to brakes being fitted to the trailer that the car is towing.

At least one of the axles on the trailer that the vehicle is towing must have brakes fitted and controlled by the car if they describe the capacity as "braked".