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Service bulletins for the 2012 Honda Civic

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.

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

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

Bulletins, newest first
ABOM121820209012021-01-05. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Dealer Message - Today, December 18, 2020, American Honda is announcing a warranty extension for certain 2012-2015 Civic Hybrid vehicles. This warranty extension covers the intelligent inverter unit (IIU) to address possible concerns of various warning lights turning on and diminishing electric motor power, braking or steering assistance control. American Honda is extending the warranty coverage of the IIU to 15 years from the original date of purchase or 150,000 miles, whichever comes first.
A20-0302020-12-23. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; EQUIPMENT. "Service Bulletin - The Motor Power Inverter (MPI), also known as the Intelligent Inverter Unit (IIU), may fail over time due to a defective solder joint. This failure may result in one or more of the following DTC(s): -P1440 (MPI Module Output Circuit Malfunction) -P1437 (MPI Module Short Circuit) -P15A5 (Motor Current Sensor Circuit Malfunction) -P0A78 (MPI Module Internal Circuit Malfunction) -P0AE1 (Bypass Contractor Malfunction) -P0A3C (Motor Control Module (MCM) Overheating) -P0A3F (Motor Rotor Position Sensor Circuit Malfunction) -P0DA8 (MPI Module Voltage Malfunction) -P1634 (MPI Module Signal Circuit Malfunction) -P0AEE (MPI Internal Circuit Malfunction) -P0A27 (High Voltage Contactor Stays Activated) American Honda is extending the warranty coverage of the motor power inverter (MPI) on these vehicles to 15 years from the original date of purchase or 150,000 miles, whichever comes first."
Service Bulletin2018-03-05. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Service bulletin - The customer states the vehicle did not start due to a low state of battery charge. The vehicle?s battery sensor monitors battery condition and the PCM determines charging mode. Based on the sulfation of the battery and customer driving habits, the PCM may not select the correct charge mode.
Service Bulletin2018-02-21. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Service bulletin - A new replacement IMA battery will require an update to the IMA battery software. If the IMA battery is being replaced on the affected models, please check and install the latest version of the IMA battery software as needed.
Service Bulletin2018-02-12. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Service bulletin - The customer states the vehicle did not start due to a low state battery charge. The vehicle?s battery sensor monitors battery condition and the PCM determines charging mode. Based on the sulfation of the battery and customer driving habits, the PCM may not select the correct charge mode.
DLR MSG - RFV -2017-09-27. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; FUEL SYSTEM, GASOLINE. Dealer message - American Honda (AHM) is investigating certain 2012-2013 Civics with a complaint of an inaccurate fuel gauge. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
A17-0232017-06-30. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. SERVICE BULLETIN - DUE TO AN IMPROPER PCM CALIBRATION, UNDER CERTAIN CONDITIONS AFTER STARTING THE ENGINE THE PCM CANNOT PROPERLY ADJUST THE AIR-FUEL RATIO. AS A RESULT, VEHICLE EMISSIONS MAY EXCEED APPLICABLE STANDARDS.
A13-0442016-12-20. Service bulletin. ELECTRICAL SYSTEM. SERVICE BULLETIN -THE MIL COMES ON WITH DTC P0128 (COOLING SYSTEM MALFUNCTION) STORED. THE THERMOSTAT JIGGLE VALVE MAY INTERMITTENTLY STICK OPEN AND CAUSE THE PCM TO STORE DTC P0128.
SB-13-0692013-10-17. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. HONDA: DESCRIPTION OF THE UPDATE FOR HFL (HFT) CONTROL UNITS. DESCRIPTION OF TOOLS AND EQUIPMENT, UPDATING TIPS AND PRECAUTIONS, AS WELL AS HONDA CONTACT INFORMATION. *JS
SB-13-0172013-04-22. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. HONDA: ODOMETER, TRIP COMPUTER, FUEL RANGE, AND FUEL ECONOMY STATUSES ARE NOT VISIBLE ON THE I-MID DISPLAY. THIS CAN BE FIXED WITH A SOFTWARE UPDATE. *KB
SB-13-02002013-04-18. Service bulletin. AIR BAGS; ELECTRICAL SYSTEM:WIRING. HONDA: SOME SRS REPLACEMENT PARTS WERE INCORRECT, BECAUSE OF PRODUCTION OF WIRING HARNESSES AND CONNECTORS, FROM CONTINENTAL AND TRW SUPPLIERS, THAT ARE THE SAME BUT HAVE DIFFERENT SENDING SIGNAL WAYS BETWEEN IMPACT SENSORS AND SRS UNIT. MODELS 2011-2012 CIVIC, CR-V. *PE
SB-12-0022012-03-06. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY; ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR. HONDA: ON SOME MODEL VEHICLES, THERE IS AN ALTERNATOR/STARTER TESTER (AST) MODULE CAPABLE OF TESTING ALTERNATORS, INSTALLED ON GR8 DIAGNOSTIC BATTERY STATION. *PE
SB-11-0512011-10-03. Service bulletin. STEERING: STEERING WHEEL/HANDLE BAR; ELECTRICAL SYSTEM:SOFTWARE. HONDA: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. STEERING WHEEL AUDIO CONTROL SOFTWARE UPDATE. *PE UPDATED 11/28/11. *PE UPDATED 5/3/2012. *JS

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