2008 Volvo S60 Owner's Manual - Page 135
2008 Volvo S60 Manual
Page 135 highlights
If your vehicle is equipped with automatic leveling, the rear suspension always retains the correct ride height regardless of the load. When the vehicle is stationary, the rear suspension lowers, which is normal. 146 06 Starting and driving Detachable trailer hitch 1. Ball holder 2. Locking bolt 3. Safety wire attachment 4. Hitch assembly 5. Cotter pin Installing the ball holder 1. If necessary, remove the cotter pin from the locking bolt and slide the locking bolt out of the hitch assembly. 2. Slide the ball holder into the hitch assembly. 3. Align the hole in the ball holder with the one in the hitch assembly. 4. Slide the locking bolt through the hitch assembly/ball holder. 5. Insert the cotter pin in the hole at the end of the locking bolt.