Buick Regal 2018-2026 Service Manual / General Information / About Manual
Buick Regal: About Manual
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Arrows and Symbols, Acronyms and Units
ARROWS AND SYMBOLS
This service manual uses various symbols in order to describe different
service operations.
Front of Vehicle
View Detail
Ambient Air Mixed with Another Gas or Indicate Tempera
Vehicle, Engine and Transmission ID and VIN Location, Derivative and
Usage
The vehicle identification number (VIN) plate is the legal identifier of the
vehicle. The VIN plate is
located on the upper left corner of the instrument panel (I/P) and can be seen
through the win
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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
Bluetooth antenna (If equipped)
Back up battery (If equipped)
WiFi Hotspot (If equipped)
TTY (Teletyp
Radio Information Display Malfunction (IO5/IO6)
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.
Refer to Diagnostic Procedure Instructions for an overview of each
diagnostic category.
Circuit/Syste
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