Buick Regal 2018-2026 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:
Wipers and Washers
SPECIFICATIONS
FASTENER SPECIFICATIONS
Reusable Threaded Fastener Tightening Specifications
NOTE:
All fasteners listed in this table can be reused after removal.
SCHEMATIC WIRING DIAGRAMS
WIPER/WASHER WIRING SCHEMATICS
Controls
Wipers
Washers
Engine Heater
The engine coolant heater,
if available, can help in cold weather
conditions at or below -18 ВєC (0 ВєF)
for easier starting and better fuel
economy during engine warm-up.
Plug in the coolant heater at least
four hours before starting the
vehicle. An internal thermostat in
the plug-end of the c
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