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Service bulletins for the 2012 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.

1749 on file from NHTSA, as of 2026-10-19.

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By component

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
11-08-49-001D2018-04-16. Service bulletin. ELECTRICAL SYSTEM. This technical bulletin provides a procedure to turn the transport mode on/off message that is displayed in the DIC and/or battery light is flashing.
PI0663C2018-04-16. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This preliminary informational bulletin provides information on updating software for the navigation radio for loss of GPS signal, low fuel, XM volume, audio button functionality, not able to set clock.
PI09242018-04-02. Service bulletin. ELECTRICAL SYSTEM:WIRING: REAR COMPARTMENT/TRUNK. This preliminary information bulletin provides recomandations for Intermitent Unwanted Trunk Opening While Vehicle is Parked Concern.
03-06-03-004I2018-04-02. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This informational bulletin provides information for warranty codes that are generated by EL-50313 midtronics GR8 battery tester/charger.
13-00-89-0082018-04-02. Service bulletin. ELECTRICAL SYSTEM:WIRING. This informational bulletin provides information for GM wiring repair.
PIP5180B2018-03-12. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY. This Preliminary Information communication provides information to the technician about vehicles that have hard start, extended crank, or black smoke from the exhaust when starting. Technician will need to perform fuel quality test, spark test, and a compression test. Technician should also install a vacuum gauge prior to cold start and watch needle for signs of a sticking valve.
PIP4670E2018-03-12. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about a no start or another concern after swapping an Engine Control Module or other modules from one vehicle to another. The Global Architecture electrical system associated with these vehicles does not allow controller swaps between vehicles.
PIT5119D2018-01-22. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that the keyless entry is inoperative. Technician should inspect the ignition key cylinder door sticks in the up position. If the door is found open do not replace the ignition key cylinder, use a Lubriplate type of lubrication spray and lubricate the ignition key cylinder door. Insert the tip of the key in and out to verify the door of the cylinder is not sticking.
PIT54682018-01-22. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This Preliminary Information communication provides information to the technician about a connectivity concern with Bluetooth after phone software is updated or after any vehicle updates for the radio or Human Machine Interface has taken place. Technician should delete all Bluetooth pairings and then reboot the Bluetooth device and the vehicle. After the vehicle and radio is booted back up repair the Bluetooth device.
PIT54642018-01-22. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that the incoming caller ID may no longer be available or displayed after the Canada OnStar upgrade. Dealer should communicate to the customer that we apologize for this inconvenience and that General Motors is working on a solution for this concern.
PIC5650D2018-01-16. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, and/or B3935. Technician should not replace any parts for this concern. If unable to duplicate the concern ask if the customer uses any Radio Frequency Identification Devices when the concern is present. Dealer should also direct their customers to the appropriate section in the Owner manuals that references that the device complies.
PIC5491K2018-01-16. Service bulletin. ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicles that have an OnStar system that will not power up. Technician should turn off the ignition and cancel retained accessory power. After the vehicle has powered down remove power to the OnStar module for five minutes. After the power has been removed for five minutes, if the OnStar system is working release the vehicle. If the OnStar system is still inoperative continue with published Service Information diagnostics.
PI0799A2017-12-22. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL. This preliminary informational bulletin adds the 2014 - 2016 model years to cleaning information to correct a customer concern of seeing a white film/residue on the IP pad and/or door trim panels.
15-NA-0302017-12-22. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides information to dealership personnel on the use of non-GM approved battery chargers and booster packs.
15-06-03-001A2017-12-22. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin provides information that may be useful in diagnosing/testing batteries that have set for a long period of time and/or set in cold weather climates to correct a customer concern of symptoms that include, but not limited to, a slow or no crank condition that may be caused by a discharged battery.
PI0663F2017-12-22. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM:SOFTWARE. This preliminary bulletin provides information to reprogram the navigation radio software to correct the customers concern of multiple Radio concerns.
PI13812017-12-22. Service bulletin. ELECTRICAL SYSTEM. This preliminary informational bulletin provides a procedure to reprogram the HPCM to correct the customer concern of a no charge, jump start and/or vehicle stalling.
100089005D2017-12-22. Service bulletin. ELECTRICAL SYSTEM:WIRING. This warranty informational bulletin advised the technician that when performing a wiring repair, more information is required.
030846004M2017-12-22. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin provides information on part restriction and ordering process information for onstar vehicle communication interface modules.
100844004C2017-12-22. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin provides information on USB command and control multimedia player interface/list of supported devices.
PI0745C2017-12-22. Service bulletin. ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS. This preliminary informational bulletin provides a procedure on how to correctly check and adjust fuses within the instrument panel fuse block for concerns with components fused through the instrument panel fuse block
PI0663A2017-12-22. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This preliminary informational bulletin provides a procedure to reprogram the navigation radio for concerns regarding Loss of GPS Signal, Low Fuel, XM Volume, Audio Button Functionality, Not Able to Set Clock, Factory Settings Option Inoperable, Radio Display Information May Not Match
080846004A2017-12-22. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin provides information regarding the aftermarket device interference with onstar diagnostic service.
17-NA-2442017-12-22. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. This informational bulletin provides information on Information on How to Prevent Inadvertent Vehicle Starting from Key Fob or OnStar Mobile Application and where to locate the information for future use.
11-08-49-001V2017-12-22. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This technical bulletin provides information on Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing and the procedures to turn the transport mode message on and off.

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