Buick Regal Owners & Service Manuals

Buick Regal: OnStar Services

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 Emergency

Emergency Services require an active, OnStar service plan (excludes Basic Plan). With Automatic Crash Response, built-in sensors can automatically alert a specially trained OnStar Advisor who is immed

 Navigation

OnStar navigation requires a specific OnStar service plan. Press to receive Turn-by-Turn directions or have them sent to the vehicle's navigation screen, if equipped. Turn-by-Turn Navigation 1. Pres

 Connections

The following OnStar services help with staying connected. Ensuring Security Change the default passwords for the Wi-Fi hotspot and myBuick mobile application. Make these passwords different fro

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 DTC B257C or B257D

Diagnostic Instructions Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach. Diagnostic Procedure Instructions provides an overview of each diagnostic category. DTC Descriptors D

 Specifications, Schematic and Wiring Diagrams

Specifications TEMPERATURE VERSUS RESISTANCE - INTAKE AIR TEMPERATURE S TEMPERATURE VERSUS RESISTANCE - ENGINE COOLANT TEMPERATURE SENSOR ALTITUDE VERSUS BAROMETRIC PRESSURE IGNITION SYSTEM SPECIFICATIONS FASTENER SPECIFICATIONS Single Use Non-Threaded Fasteners/Components NOTE: All fasteners/c

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