Black plate (6,1)Cadillac XTS Owner Manual (GMNA-Localizing-U.S./Canada-7707485) -2015 - CRC - 10/31/1414-6 OnStarVehicle DiagnosticsOnStar Vehicle Diagnostics canperform a vehicle check everymonth. It will check the engine,transmission, antilock brakes, andother major vehicle systems. It alsochecks the tire pressures, if thevehicle is equipped with the TirePressure Monitoring System. If anOn-Demand Diagnostics check isneeded, press Q, and an Advisorcan run a check.OnStar AdditionalInformationTransferring ServicePress Q to request account transfereligibility information. The Advisorcan assist in canceling or removingaccount information.Selling/Transferring theVehicleCall 1-888-4-ONSTAR immediatelyto terminate your OnStar services ifthe vehicle is disposed of, sold,transferred, or if the lease ends.Reactivation for SubsequentOwnersPress Q and follow the prompts tospeak to an Advisor as soon aspossible. The Advisor will updatevehicle records and explain theOnStar service options available.How OnStar Service WorksAutomatic Crash Response,Emergency Services, Crisis Assist,Stolen Vehicle Assistance, VehicleDiagnostics, Remote Door Unlock,Roadside Assistance, Turn-by-TurnNavigation, and Hands-Free Callingare available on most vehicles. Notall OnStar services are availableeverywhere or on all vehicles. Formore information, a full descriptionof OnStar services, systemlimitations, and OnStar terms andconditions:. Call 1-888-4-ONSTAR(1-888-466-7827).. See www.onstar.com (U.S.).. See www.onstar.ca (Canada).. Call TTY 1-877-248-2080.. Press Q to speak with anAdvisor.OnStar services cannot work unlessthe vehicle is in a place whereOnStar has an agreement with awireless service provider for service