Buick Regal Owners & Service Manuals

Buick Regal: Description and Operation

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 OnStar Description and Operation (UE1 with IOB/IO6)

This OnStar system consists of the following components: Telematics communication interface control module OnStar three button assembly Microphone Cellular antenna Navigation antenna Blueto

 OnStar Description and Operation (UI3)

The Emergency Road Assistance Global Navigation Satellite System (ERA GLONASS) consists of the following components: Telematics communication interface control module Telematics two button assembl

 OnStar Description and Operation (UE1 without IOB/IO6)

This OnStar system consists of the following components: Telematics communication interface control module OnStar three button assembly Microphones Cellular antenna Navigation antenna Back

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 Symptoms - Displays and Gauges

NOTE: The following steps must be completed before using the symptom diagnostic tables. 1. Before using the symptom diagnostic tables, perform the Diagnostic System Check - Vehicle in order to determine that there are no DTCs set, and that the control modules can communicate via the serial data li

 DTC P2725, P2729, or P2730

Diagnostic Instructions Perform the Diagnostic System Check prior to using this diagnostic procedure: Refer to Diagnostic System Check - Vehicle Review the description of Strategy Based Diagnosis: Refer to Strategy Based Diagnosis An overview of each diagnostic category can be found here: R

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