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Service bulletins for the 2012 Toyota PRIUS

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.

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

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Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
PG006-01-Obsolet2018-10-15. Service bulletin. EQUIPMENT:OTHER:LABELS; EQUIPMENT. Technical Service Bulletin: OBSOLETE NOTICE: July 31, 2018: This bulletin is now obsolete. Please see T-SB-0304-17.
PG004-97-Obsolet2018-10-15. Service bulletin. EQUIPMENT; EQUIPMENT:OTHER:LABELS. Technical Service Bulletin: OBSOLETE NOTICE: July 31, 2018: This bulletin is now obsolete. Please see T-SB-0304-17.
T-SB-0304-17_Rev2018-08-20. Service bulletin. EQUIPMENT. TSB: REVISION NOTICE July 31, 2018 Rev2: ? The Supersession Notice has been updated. January 11, 2018 Rev1: ? The Supersession Notice has been updated. Any previous printed versions of this bulletin should be discarded. SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin Nos. PG021-88, PG015-89, PG0015-90, PG002-91, PG002-93, PG005-97, PG007-01, PG007-07, PG006-01, PG004-97, and T-SB-0144-08. Service Bulletin Nos. PG021-88, PG015-89, PG0015-90, PG002-91, PG002-93, PG005-97, PG007-01, PG007-07, PG006-01, PG004-97, and T-SB-0144-08 are obsolete and any printed versions should be discarded. Vehicle replacement certification labels (the vinyl label installed on the driver door or door post) and VIN plates (the metal plate riveted to dashboard) may be available from Toyota, provided the request meets one of the criteria listed in this Service Bulletin. Replacement Certification Label and VIN Plate Criteria A replacement certification label and/or VIN plate may be requested if: ? The vehicle was in an accident and the label and/or plate is damaged or attached to a part that will be replaced during the repair. ? The label and/or plate was stolen.
T-SB-0057-182018-08-20. Service bulletin. EQUIPMENT. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0043-14. ? Applicability has been updated to include 2017 ? 2018 model year Toyota vehicles. Service Bulletin No. T-SB-0043-14 is obsolete and any printed versions should be discarded. The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once the system is reset, all previously registered keys will be erased. Follow the procedures in this bulletin to reset a vehicle Immobilizer or Smart Key system. NOTE New security provisions are required to obtain a reset passcode. It is critical to review the instructions for this new process BEFORE attempting to get a passcode in the new system.
T-TT-0442-172018-07-02. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM. TT: Safety Connect is a vehicle option which requires a subscription fee for the system to be active. The first year of service is provided in the vehicle purchase price. Once the subscription has expired the DCM (Telematics Transceiver) will be in an inactive state. In some instances, a DCM may need to be replaced even though the customer is not using the service.
ZF5-T-SB-0036-162018-07-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. TSB: Some 2010 ? 2014 Prius and 2012 ? 2014 Prius V model vehicles may exhibit a MIL ?ON? condition with DTCs P0A94, P324E, P0A1A, or P3004, indicating a malfunction has occurred in the hybrid inverter assembly. To help identify the specific components within the inverter assembly that need to be replaced, follow the steps in this service bulletin to address the condition.
ZE3-Warranty Pol2018-07-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Warranty Policy Bulletin (POL14-05): Toyota has received some reports indicating the Intelligent Power Module (IPM) located inside the inverter assembly of the hybrid system may fail. This condition is indicated by the hybrid system diagnostic trouble codes (DTCs): P0A94, P324E, P3004, and/or P0A1A. If one or more of these DTCs are detected, various warning lamps on the instrument panel will illuminate and the vehicle will enter fail safe mode.
ZE3-Dealer Lette2018-07-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Dealer Letter: In these vehicles, Toyota has received some reports where the Intelligent Power Module (IPM) located inside the inverter assembly of the hybrid system may fail. This condition is indicated by hybrid system diagnostic trouble codes (DTCs): P0A94, P324E, P3004, and/or P0A1A. If one or more of these DTCs are detected, various warning lamps on the instrument panel will also illuminate and the vehicle will enter fail safe mode. Although the Hybrid Inverter assembly is covered by Toyota?s New Vehicle Limited Warranty for 8 years or 100,000 miles (whichever occurs first), we at Toyota care about the customers? ownership experience. Toyota is now extending the warranty coverage for repairs related to failure of the Intelligent Power Module (IPM). Please see the Warranty Enhancement Program Details for additional information.
T-SB-0044-162018-07-02. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; STRUCTURE. TSB: On some vehicles, when Rapgard? is removed, the paint may have a stained appearance. These stains appear to be under the clear coat (repainting this area is not necessary). The stain patterns are usually under wrinkles in the Rapgard?. These wrinkles sometimes trap water and cause the paint to stain from the trapped moisture, especially on horizontal surfaces, such as the hood, roof, and trunk. Stains can be removed by heating the stained surface to remove the trapped moisture.
T-TT-0442-17_Rev2018-06-18. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. TT: Safety Connect is a vehicle option which requires a subscription fee for the system to be active. The trail period of service is provided upon the vehicle purchase. Once the subscription has expired the DCM (Telematics Transceiver) will be in an inactive state. In some instances, a DCM may need to be replaced even though the customer is not using the service. If registration of the replacement DCM part is attempted using the Techstream utility after the account has become inactive, the registration will fail, and messages such as "ATX webserver is Down" or "ATX error" will be displayed.
ZF5-T-SB-0036-162018-06-11. Service bulletin. EQUIPMENT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. TSB: Some 2010 ? 2014 Prius and 2012 ? 2014 Prius V model vehicles may exhibit a MIL ?ON? condition with DTCs P0A94, P324E, P0A1A, or P3004, indicating a malfunction has occurred in the hybrid inverter assembly. To help identify the specific components within the inverter assembly that need to be replaced, follow the steps in this service bulletin to address the condition.
ZE3-Warranty Pol2018-06-11. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Warranty Policy Bulletin (POL14-05): Toyota has received some reports indicating the Intelligent Power Module (IPM) located inside the inverter assembly of the hybrid system may fail. This condition is indicated by the hybrid system diagnostic trouble codes (DTCs): P0A94, P324E, P3004, and/or P0A1A. If one or more of these DTCs are detected, various warning lamps on the instrument panel will illuminate and the vehicle will enter fail safe mode.
ZE3-Dealer Lette2018-06-11. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM. Dealer Letter: In these vehicles, Toyota has received some reports where the Intelligent Power Module (IPM) located inside the inverter assembly of the hybrid system may fail. This condition is indicated by hybrid system diagnostic trouble codes (DTCs): P0A94, P324E, P3004, and/or P0A1A. If one or more of these DTCs are detected, various warning lamps on the instrument panel will also illuminate and the vehicle will enter fail safe mode. Although the Hybrid Inverter assembly is covered by Toyota?s New Vehicle Limited Warranty for 8 years or 100,000 miles (whichever occurs first), we at Toyota care about the customers? ownership experience. Toyota is now extending the warranty coverage for repairs related to failure of the Intelligent Power Module (IPM). Please see the Warranty Enhancement Program Details for additional information.
T-TT-0395-162018-06-11. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT. TT: HV Batteries have liquid filled cell modules, to prevent leakage from cells, it is very important to confirm the proper orientation mark of the DRC.
T-TT-0234-13 Rev2018-04-23. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). TT: Since MY 2011, several different update or upgrade USB SSTs have been issued for Toyota audio and navigation systems. Refer to the chart below for a comprehensive list of all current and previously issued USB SSTs and their applicability.
T-TT-0294-14 Rev2018-04-23. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; FUEL SYSTEM, GASOLINE. TT: Greenhouse Gas Logic (GHC) has been implemented on Toyota A/C Systems to reduce tailpipe emissions. The federal government issues café (Corporate Average Fuel Economy) credits to vehicle manufacturers that implement new technologies that reduce the carbon footprint of the vehicles they produce. GHC Logic technology works by automatically operating the HVAC system in REC mode when certain operating conditions are met, improving the A/C systems cooling efficiency and reducing the vehicle's C02 emissions.
T-TT-0234-13 Rev2018-04-23. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. TT: Since MY 2011, several different update or upgrade USB SSTs have been issued for Toyota audio and navigation systems. Refer to the chart below for a comprehensive list of all current and previously issued USB SSTs and their applicability.
T-TT-0392-162018-04-23. Service bulletin. EQUIPMENT:ELECTRICAL. TT: Some customers may experience Bluetooth connection issues after updating the Android Operating System to 5.x.x (Lollipop) or later.
T-TT-0391-162018-04-23. Service bulletin. EQUIPMENT. TT: When replacing the Hard Disk Drive (HDD) or Navigation Unit (Navi Unit) follow the instructions below.
C0G_Technical In2018-04-23. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. C0G Expired on May 31, 2015.
C0G_Dealer Lette2018-04-23. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. C0G Expired on May 31, 2015.
TTT-0337-15 Rev12018-04-23. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. TT: When updating either the navigation or radio firmware, verify the vehicle applicability BEFORE beginning the update.
T-TT-0365-152018-04-23. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. TT: A vehicle may arrive to the dealer with a MIL ?ON? condition and P0A80 stored in the memory. Some cases have been identified with internal modification done to the HV Battery. Modified or altered parts are not covered under warranty.
T-TT-0363-152018-04-23. Service bulletin. EQUIPMENT:ELECTRICAL. TT: Vehicle may arrive at the dealer with the charger cable not functioning. In some cases the cable is modified internally. NOTE: These types of modifications will void the warranty of the cable and HV Battery.
TTT-0234-13 Rev62018-04-23. Service bulletin. EQUIPMENT:ELECTRICAL. TT: Since MY 2011, several different update or upgrade USB SSTs have been issued for Toyota audio and navigation systems. Refer to the chart below for a comprehensive list of all current and previously issued USB SSTs and their applicability.

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