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Service bulletins for the 2013 Buick Regal

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

1884 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
990420002I2023-12-11. Service bulletin. POWER TRAIN:DRIVELINE. Information on Driveline Clunk Noise
990420002H2023-12-11. Service bulletin. POWER TRAIN:DRIVELINE. Information on Driveline Clunk Noise
PC355B2023-12-11. Service bulletin. EQUIPMENT. ACDelco Return Parts Application
14D1152023-12-11. Service bulletin. EQUIPMENT. Please return service inventory of ACDelco part numbers 20964305, 20964306, 20877116, and 20898936 (Date Codes 077 13166 - 077 13228, June 15, 2013?August 16, 2013).
23-NA-1622023-12-09. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; POWER TRAIN. This service bulletin advises the tech of updated Diagnostic procedures in Service Information (SI) to avoid misdiagnosis when addressing a customer concern of Service Rear Axle Message displayed on the Driver information Center (DIC).
PIT5264B2023-12-04. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Canadian Customers Unable To Place Calls And Turn By Turn Inoperative In The United States.
PIT52642023-12-04. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Canadian Customers Unable To Place Calls In The United States
PIT5236B2023-12-04. Service bulletin. ELECTRICAL SYSTEM. OnStar Module Does Not Support All B101D Symptom Codes.
PIT52142023-12-04. Service bulletin. SUSPENSION. GM TAC Support of Vehicle Vibration Complaints.
12238C2023-12-04. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Loss of Battery Charge ? Inspect Generator Control Module
12238B2023-12-04. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. Loss of Battery Charge ? Inspect Generator Control Module
12222B2023-12-04. Service bulletin. POWER TRAIN; EQUIPMENT. Incorrect Material Used for Transmission O-Ring
122122023-12-04. Service bulletin. ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM; UNKNOWN OR OTHER; EXTERIOR LIGHTING:TURN SIGNAL:BULBS. Recall-possible loss of break assist
1308116001A2023-12-04. Service bulletin. EQUIPMENT:ELECTRICAL. Aftermarket ALDL or DLC Interface Devices Causing Multiple Issues
130601003F2023-12-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. Excessive Oil Consumption
130601003E2023-12-04. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Excessive Oil Consumption
130601003D2023-12-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. Excessive Oil Consumption
120941002B2023-12-04. Service bulletin. AIR BAGS; EXTERIOR LIGHTING. Passenger Presence System (PPS) May Command Seat Belt Reminder Chime Passenger Airbag Indicator On When Electronic Devices or Conductive Objects are Placed on Front Passenger Seat
1209410022023-12-04. Service bulletin. AIR BAGS; EXTERIOR LIGHTING. Passenger Presence System (PPS) May Command Seat Belt Reminder Chime Passenger Airbag Indicator On When Electronic Devices or Conductive Objects are Placed on Front Passenger Seat
1200890082023-12-04. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM:PROPULSION SYSTEM:HYBRID MANAGEMENT. High Voltage Battery Section Serviceability - Essential Tool EL-50332
120089002A2023-12-04. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER; EQUIPMENT. Requesting a New Key Code for Customer with Lost or Stolen Keys
110849001M2023-12-04. Service bulletin. EQUIPMENT:ELECTRICAL. Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing (Follow Procedure as Outlined Below)
110849001L2023-12-04. Service bulletin. EQUIPMENT:ELECTRICAL. Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing (Follow Procedure as Outlined Below)
110849001K2023-12-04. Service bulletin. EQUIPMENT:ELECTRICAL. Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing (Follow Procedure as Outlined Below)
110849001J2023-12-04. Service bulletin. EQUIPMENT:ELECTRICAL. Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing (Follow Procedure as Outlined Below)

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.