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What is the data trial ?

Members who purchase an eligible Wi-Fi equipped Chevrolet, Buick or GMC vehicle can receive one month trial or 3 GB of 4G LTE data trial; Cadillac vehicle can receive three months trial or 3 GB of 4G LTE data trial * (whichever comes first). OnStar is available on more than 30 GM vehicles. Browse vehicle availability by selecting a brand for details and limitations.

* Data trial service varies with conditions and location. Requires active service plan and paid AT&T data plan. Vehicle must be on or in the accessory position for Wi-Fi to function.