Buick Regal 2018-2025 Service Manual / HVAC & Restraints / HVAC - Automatic / Diagnostic Information and Procedures
Buick Regal: Diagnostic Information and Procedures
HVAC COMPONENT REPLACEMENT REFERENCE
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- DTC B0163
- DTC B0163, B0183, or B1405
- DTC B0173, B0178, B0509, B0514 or B3933
- DTC B018A, B048C, B048F, or B1395
- DTC B0183
- DTC B0193
- DTC B0223, B022A, B0233, B023A, B0408, or B0418
- DTC B269A, B269C, or B269D
- DTC B3843
- DTC B393B
- DTC P0532 or P0533
- DTC P0645, P0646, or P0647
- Symptoms - HVAC Systems - Automatic
- Air Conditioning Compressor Malfunction
- Afterblow Enabling
READ NEXT:
DTC B0163
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.
Diag
DTC B0163, B0183, or B1405
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.
Diag
DTC B0173, B0178, B0509, B0514 or B3933
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.
Diag
SEE MORE:
Power Outlets
Power Outlets 12-Volt Direct
Current
The 12-volt power outlets can be
used to plug in electrical equipment,
such as a cell phone or MP3 player.
The vehicle may have accessory
power outlets:
Below the climate controls.
In the cargo area, if equipped.
Open the protective cover to use the
power ou
Parking Brake Actuator Replacement (GNQ)
Removal Procedure
WARNING: Brake Dust Warning
1. Set the park brake in Service Mode.
Manual Method
Change the transmission gear to neutral or park position.
Press and hold the push button start switch for 10 seconds, with the
brake pedal not applied.
This will place the vehicle in Service Mode
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