join with Verizon Wireless to offer video chat and streaming content to automobile passengers. Since 2014 OnStar offers LTE Wi-Fi service on select GM cars. Starting June 14, 2021, the OnStar Guardian app was made available to any driver in the United States or Canada. The Guardian app uses sensors in the phone, such as the accelerometer and the GPS receiver, to provide some traditional OnStar services (e.g., automatic crash notification), regardless of the vehicle in which the user is riding. The Guardian app also serves as the user interface, via Bluetooth, to the OnStar Link plug-in device, if it is installed. OnStar Link is a miniature GPS receiver and 4G LTE IoT interface that plugs into the vehicle's OBD-II connector. It can provide most traditional OnStar services, including a WiFi hotspot (additional data plan required), though not Stolen Vehicle Slowdown, Hands-Free Calling, Turn-by-Turn Navigation, or Send-to-Navigation. Voice communication with an OnStar Advisor requires a Bluetooth-paired cell phone. In September 2021, GM notified owners of certain pre-2015 model-year vehicles in the United States that their factory-installed OnStar equipment will become obsolete and non-functional after December 2022. These vehicles use Verizon Wireless's 2G/3G CDMA network for communication, and Verizon has announced plans to sunset this network. Unlike GM's remedy under similar circumstances for Canadian customers, where the vehicle hardware was updated, customers in the United States will be provided an OnStar Link plug-in at no additional charge. China In December 2009, Shanghai OnStar Telematics Co. Ltd., a joint venture between General Motors, SAIC Group and SGM (Shanghai GM), began offering its services in China. It is available on select Cadillac, Buick and Chevrolet vehicles and China Telecom is the wireless network provider throughout China. The service will be available throughout mainland China and will be first launched in Mandarin Chinese. Mexico In June 2013, OnStar announced its entry to the Mexican market. The first vehicles who obtained the system were the 2014 Chevrolet Cheyenne and the 2014 GMC Sierra. Currently it is available in nearly all of General Motors vehicles available in the country with the Chevrolet Beat, Chevrolet Aveo, Chevrolet Tornado and Chevrolet S10 being the only exceptions. Brazil OnStar is available in Brazil in the Chevrolet vehicles such as the Chevrolet Cobalt, Chevrolet Cruze, Onix, Onix Plus and Chevrolet S-10. Argentina OnStar started operations in Argentina on May 5, 2016, with the 2016 Chevrolet Cruze being the first vehicle