Those of you who have air suspension please remember to turn off the "self leveling" feature any time your working under your car or changing a tire. You can refer to your manual for instructions. I posted this many times because I learned my lesson the hard way using the OEM jack to fix a rear tire. I forgot to disable this feature and as a result slightly damaged the rocker panel as the jack completely slipped out of its socket as soon as I started lifting the car. At least I didn't have the chance to take the wheel off or it would have been a costly repair.