1. Open the lower cover
2. Push the parking handle in and down.
3. Release off the cable (it is almost similar to releasing bicycle brake cable)
That's it. It is very straight forward.

How to take the lower cover off?
1. unscrew all screws 2, 3, 4 (two of them), 5, 6 and 7.
2. you do not need to open the nut.
3. Lower the cover by pushing downward
4. pull the cover towards screw number 5 to release the vent inside screw number 3.
DONE.

Hope it explains.