Features: Strictly follow OE manufacturing standards and the reference OE number is 20925924. 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: 20925924 Color: Black Material: Plastic, Metal, Rubber Frequency: 315MHz Thread Diameter: M8x0.8 Size: 7.5x6.2x2cm / 2.95''x2.44''x0.79''(L*W*H) Fits for for Chevrolet Impala 2006-2007 for Chevrolet Uplander 2008-2009 for GMC Yukon 2007 for GMC Acadia 2007-2008 for Cadillac CTS 2009-2013 for Pontiac Montana 2008 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 .