Buick Regal 2018-2025 Service Manual / Accessories and Equipment / Power Seats / Diagnostic Information and Procedures
Buick Regal: Diagnostic Information and Procedures
- DTC B1405, B1825, B2355, B2365, or B2375 (Driver Seat)
- DTC B1405, B1825, B2355, B2365, or B2375 (Passenger Seat)
- DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 (Driver Seat)
- DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 (Passenger Seat)
- DTC B183B or B183C
- DTC B2755 or B2765
- DTC B3920
- DTC B392B
- DTC B392C
- Symptoms - Power Seats
- Lumbar/Bolster/Massage Malfunction (AVK without AF6 or AVU without AKE)
- Lumbar/Bolster/Massage Malfunction (AL9 or AT9)
- Memory Seat Feature Malfunction
- Power Folding Seat Malfunction
- Power Seat Malfunction (Driver or Passenger without Memory A44 or A45)
- Power Seat Malfunction (Driver Seat with Memory A45)
- Power Seat Malfunction (Passenger Seat with Memory A44)
READ NEXT:
DTC B1405, B1825, B2355, B2365, or B2375 (Driver Seat)
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 B1405, B1825, B2355, B2365, or B2375 (Passenger Seat)
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 B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 (Driver Seat)
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:
Rear Wheel Bearing and Hub Replacement (AWD)
Removal Procedure
1. Remove the rear tire and wheel assembly.
2. Rear Wheel Speed Sensor - Remove.
3. Rear Wheel Drive Shaft@Rear Wheel Bearing and Hub Assembly - Separate.
Rear Wheel Drive Shaft Replacement - Left Side
Rear Wheel Drive Shaft Replacement - Right Side
4.
Rear Brake Rotor(1) -
Transmission Fluid Cooler Flow Test and Flushing (AF50-8)
Special Tools
DT - 45096 TransFlow Cooler Flush Machine
DT - 45096 - 30 TransFlow Adapter
For equivalent regional tools, refer to Special Tools.
GM studies indicate that plugged or restricted transmission oil coolers and
pipes cause insufficient
transmission lubrication and elevated operating
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