If equipped, this vehicle has a comprehensive, in-vehicle system that can connectto a live Advisor for Emergency, Security, Navigation, Connection, and DiagnosticServices.
The OnStar system status light is next to the OnStar buttons. If the status lightis:
Solid Green: System is ready.Flashing Green: On a call.Red: Indicates a problem.Press Q or call 1-888-4-ONSTAR (1-888-466-7827) to speak to an Advisor.
Press = to:
Make a call, end a call, or answer an incoming call.Give OnStar Hands-Free Calling voice commands.Give OnStar Turn-by-Turn Navigation voice commands. Requires the available Directionsand Connections service plan.Press Q to connect to a live Advisor to:
Verify account information or update contact information.Get driving directions. Requires the available Directions and Connections serviceplan.Receive On-Demand Diagnostics for a check of the vehicle’s key operating systems.Receive Roadside Assistance.Press the OnStar Emergency button > to get a priority connection to an Emergency Advisor available 24/7 to:
Get help for an emergency.Be a Good Samaritan or respond to an AMBER Alert.Get assistance in severe weather or other crisis and evacuation routes.Power Brake Booster Vacuum Sensor Replacement (LEA) Hydraulic Brakes Brake Booster
Removal ProcedureWith the engine OFF, apply and release the brake pedalseveral times until the brake pedal becomes firm to deplete thepower vacuum brake booster vacuum reserve.Disconnect the power brake booster vacuum sensor electricalconnector.Remove the power brake booster vacuumsensor-(1)-from th ...