It would be simple.
1. Raise the car (Ramps would work)
2. Drain the oil
3. Loosen the I think it's 2 but could be 4 small torx bolts
4. Unplug the sensor and put in the new one.
5. Refill with oil
I haven't done mine yet and my sensor is bad but it's pretty straight forward. The sensor itself is the expensive part I think ranging upwards to $90.00 plus the oil you need probably best to change out on your next oil change.