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Service bulletins for the 2016 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.

1212 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Only bulletins with component: 12-volt battery are shown. Show all

Bulletins, newest first
PIP4992C2017-08-15. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This Preliminary Information communication provides information to the technician some vehicles may have a drive motor generator, battery control module and cooling fan may become inoperative due to low system voltage. There may have been a charging system message, battery warning lamp or service hybrid system message displayed and may have Diagnostic Trouble Code P0C32 and or P0A7E. If the voltage level drops to a predetermined level approximately 9 direct current volts use Global Diagnostic System 2 to command the battery pack cooling fan motor on to make sure it operates. If the fan does not operate it will need to be replaced. Technician may need to run the vehicle through several drive cycles to ensure that there is not another root cause for the low voltage condition. Technician will need to reprogram the generator control module.
PIC5626B2017-08-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This Preliminary Information communication provides information to the technician about vehicles that have the 12V Battery is discharged with a Service Charging System Message, a Malfunction Indicator Lamp and Red Battery Light on.
PIC4541F2017-08-15. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This Preliminary Information communication provides information to the technician with a diagnostic tip for the OnStar back-up battery failure. Technician may find Diagnostic Trouble Code B1446 or B1447 and the OnStar LED is red. Technician should never disconnect the main vehicle battery or remove the OnStar fuse with the ignition key in any position other than off.
15-06-03-002B2017-08-15. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT. This informational bulletin provides information on Original Equipment Batteries Part Number and ACDelco Replacement Battery Approved Warranty Part Numbers
PIC5520S2017-03-17. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN EASSIST DRIVE MOTOR GENERATOR BATTERY ARE NO LONGER ON PART RESTRICTION. TO ORDER THE EASSIST DRIVE MOTOR GENERATOR BATTERY SECTION CONTACT THE BATTERY SERVICE CENTER IN THE UNITED STATES OR THE ELECTRONIC SERVICE CENTER IN CANADA.
030603004R2016-10-18. Service bulletin. ENGINE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION ON HOW TO TEST A BATTERY AND WHAT IS NEEDED TO WARRANTY A BATTERY.
PIC5520U2016-09-21. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN EASSIST DRIVE MOTOR GENERATOR BATTERY MODULE PARTS RESTRICTION HAS ENDED. TO ORDER THE EASSIST DRIVE MOTOR GENERATOR BATTERY SECTION DEALER WILL NEED TO CALL THE BATTERY SERVICE CENTER.
PIP-53942016-08-24. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT THE EASSIST DRIVE MOTOR GENERATOR BATTERY SECTION ARE NO LONGER ON RESTRICTION AND DOES NOT REQUIRE GENERAL MOTORS TECHNICAL ASSISTANCE CENTER CASE NUMBER.
PIC-4935-E2016-08-17. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO HELP THE DEALERSHIP TECHNICIANS PERFORM A PARASITIC DRAIN TEST FOR THE ONSTAR MODULE. WHEN PERFORMING BATTERY PARASITIC DRAIN TEST, THERE MAY BE SOME CONFUSION AS TO WHAT THE NORMAL POWER CONSUMPTION READING SHOULD BE FROM THE ONSTAR SYSTEM.
SB-15-06-03-001B2016-08-09. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION THAT MAY BE USEFUL ON DIAGNOSING BATTERIES THAT HAVE SET FOR A LONG PERIOD OF TIME AND/OR SET IN COLD WEATHER CLIMATES AND TESTING THOSE BATTERIES.
SB-03-06-03-004Q2016-08-09. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. THIS WARRANTY ADMINISTRATION BULLETIN PROVIDE POLICY INFORMATION ON USING THE EL-50313 MIDTRONICS GR8 BATTERY TESTER/CHARGER FOR DIAGNOSING BATTERY REPLACEMENTS AND MAINTAINING BATTERIES ON NEW VEHICLES IN DEALER INVENTORY.

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