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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Engine Air Cleaner/Filter
When to Inspect the Engine Air
Cleaner/Filter
For intervals on changing and
inspecting the engine air cleaner/
filter.
How to Inspect the Engine Air
Cleaner/Filter
Do not start the engine or have the
engine running with the engine air
cleaner/filter housing open. Before
removing the engine air clean
DTC B2590 or B2595
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
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