For Lexus IS NX NX200t NX300h Series Car TPMS Tire Preure Monitoring System Auto Tire Preure Display Security Alarm Please note: Your car must have a tire preure sensor in order to use our product, otherwise the product cannot be used, thank youPlease make sure it is fit your car before you purchase,if you are not sure,please contact us,thanksEntering calibration menu.1. Leave the car in park mode , start it and select tire presure monitor menu. Stop the car preing the startop button. Wait 5 seconds and then start the car normally ( pre the brake + start button ). Wait until preure menu is visible , then repeat step 1 3-5 times until instead of seeing tire preures you see - - - displayed for each wheel.2. One of the wheel positions will be highlighted in orange. Deflate the wheel until the preure is read on the display ( tire preure should be decreased with at least .2 bar ) . Be sure to wait several seconds to see wether the tire preure is decreased on the display , sensors do not send preure instantly. If nothing happens , you should deflate the wheel further. If you deflated enough , another wheel will be highlighted . Continue until all wheel preures are displayed . Enjoy your calibrated display.