Features: Strictly follow OE manufacturing standards and the reference OE number is 13172567, 13354312. The mainly function is to monitor tire internal pressure and allow you know the tire condition. High level of accuracy and sensitivity, enhance safety of your vehicle. A aftermarket replacement, directly replace your old one. This is non-OEM product! Specification: OE Number: 13172567, 13354312 Color: Green Material: Plastic, Metal, Rubber Frequency: 433MHz Thread Diameter: M8x0.8 Size: 7.4x3.8x2.2cm / 2.91''x1.5''x0.87''(L*W*H) Fits for for SAAB 9-3 2003-2007 for SAAB 9-5 2003-2007 for SATURN for ASTRA 2008-2009 Package Included:1 x Tire Pressure SensorHow to Install and Use: Step 1: Remove the tire and the tire pressure sensor/valve; (the whole tire needs to be removed) Step 2: Install the newly purchased product; Step 3: After the product is installed, please stop the vehicle and turn off the engine for about 20 minutes, and keep the remote control key 5 meters away from the vehicle; Step 4: Start the vehicle and keep the vehicle running at a speed of more than 25 km/h for 5 to 10 minutes, then the product should be matched; Step 5: If the temperature is low, such as, below 0°C, the matching time may be longer, which is normal, please wait patiently for the matching. If you still have problems, please .