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Home >> Buick >> 2019 >> Encore Base >> Repair and Diagnosis >> Accessories & Equipment >> Anti-Theft Systems >> Keyless Entry System And Remote Functions >> Description and Operation >> KeyPass System Description and Operation >> Customer Owned Vehicle (RPO BOX)

Customer Owned Vehicle (RPO BOX)

KeyPass is a remote vehicle entry and control system that allows an operator to use a mobile device, such as a smartphone, as a virtual vehicle key, incorporating select functions associated with a traditional vehicle key. KeyPass communication between the vehicle and the mobile device uses Bluetooth Low Energy. Bluetooth Low Energy operates in the 2.400 - 2.4835 GHz frequency band and utilizes frequency hopping to counteract narrowband interference issues. The vehicle is equipped with a K183 UHF Short Range Low Energy Remote Control Access Transceiver and four B342 UHF Short Range Low Energy Control Access Transceivers. The K183 UHF Short Range Low Energy Remote Control Access Transceiver is a control module that communicates with the vehicle on Low Speed GMLAN and also communicates with each B342 UHF Short Range Low Energy Control Access Transceiver via LIN in a master/slave orientation. The B342 UHF Short Range Low Energy Control Access Transceivers are short range transceivers, able to transmit and receive information with a mobile device via Bluetooth Low Energy, located strategically around the perimeter of the vehicle to ensure complete coverage of the vehicle. The K183 UHF Short Range Low Energy Remote Control Access Transceiver is also a Bluetooth Low Energy transceiver and monitors the interior of the vehicle. The K183 UHF Short Range Low Energy Remote Control Access Transceiver is typically located in the interior of the vehicle, in a centralized location such as the center console, to ensure maximum interior coverage. The B342 UHF Short Range Low Energy Control Access Transceivers are located on the vehicle exterior, typically near each vehicle corner, to maximize approach detection coverage of the vehicle's exterior, up to 70 m (230 ft).

To use the KeyPass system, a mobile device must first be paired with the vehicle. Refer to the vehicle owner's manual for instructions on pairing a mobile device for KeyPass use. A paired device can be used to lock/unlock doors, remote vehicle starting, honk horn, and visual display for vehicle information. In operation, the vehicle uses the K73 Telematics Communication Interface Control Module and the OnStar system to communicate with the OnStar enterprise center. OnStar acts as a bridge, connecting the vehicle to the KeyPass enabled device over cellular through the OnStar enterprise center. If an active remote request is made or visual display for vehicle information is requested from the KeyPass device, communication occurs with the OnStar enterprise center over cellular data, which will then communicate with the vehicle and the active request will be requested to the vehicle or the desired information will be relayed back to the KeyPass device.