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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 Manual Shift Detent Lever and Park Pawl Removal

Park Components Removal Park Components Removal Manual Shift Detent Bolt Automatic Transmission Control Lever Detent Spring Manual Shift Detent Lever Spring Park Pawl Lockout Pin Park Pawl Shaft Park Pawl Spring Park Pawl Park Pawl Actuator Bracket Bolt Park Pawl Pin Spring Guide Sleeve

 DTC P2122, P2123, P2127, P2128, or P2138

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 provide an overview of each diagnostic category. DTC Descriptors DTC P2122

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