1. Newly added GM 2021 (Enclave, Encore, Envision, CT4, CT5, CT6, XT4, XT5, XT6, Escalade, Aveo, Blazer, Bolt, Camaro, Cruze, Equinox, Spark, Sierra More than 50 other models) and 2022 (Enclave, Encore, Envision, CT4, CT5, XT4, XT5, XT6, Escalade, Aveo, Blazer, Bolt, Camaro, Cruze, Equinox, Spark, Sierra and more than 40 models) Diagnose version information, read fault code, clear fault code, read data stream, read freeze frame, action test, special functions