Smart Car TPMS Tire Pressure Monitoring System Auto Security Alarm For Toyota Rav4 Xa50 2019 2020 2021 2022 2023 Fit:For Toyota Rav4 Xa50 2019 2020 2021 2022 2023 Scan the QR code below to view the installation steps Entering calibration menu. 1. Leave the car in park mode , start it and select tire presure monitor menu. Stop the car pressing the startop button. Wait 5 seconds and then start the car normally ( press the brake + start button ). Wait until pressure menu is visible , then repeat step 1 3-5 times until instead of seeing tire pressures you see - - - displayed for each wheel. 2. One of the wheel positions will be highlighted in orange. Deflate the wheel until the pressure is read on the display ( tire pressure should be decreased with at least .2 bar ) . Be sure to wait several seconds to see wether the tire pressure is decreased on the display , sensors do not send pressure instantly. If nothing happens , you should deflate the wheel further. If you deflated enough , another wheel will be highlighted . Continue until all wheel pressures are displayed . Enjoy your calibrated display. Please note: Your car must have a tire pressure sensor in order to use our product, otherwise the product cannot be used, thank you This product only displays Kpa, not displays Psi Note: Please make sure it is fit your car before you purchase,if you are not sure,please contact us,thanks How to distinguish whether tire pressure can be installed About Feedback: Your good feedback is important for us.If you are satisfied with our product and service,please give us five star positive feedback.If you are have any question with our product ,please contact us first but not open dispute.We will try to help you solve the problem.Thank you very much for your support.