the instructions are funny, somthing like put seat belt on, wait 3 seconds remove seat belt, put it back on and off 10 times, wait 5 seconds plug it in to the rear seat belt, remove 28 times, open hood, open trunk/hatch start car, unplug seatbelt close trunk/hatch close hood, turn off car, jack up car on driver side, drain oil. that's just the driver side, the passenger side is a bit more tricky.