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Service bulletins for the 2014 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.

432 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
TT-0307-14 Rev22017-08-14. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. TT: Some customers may encounter various Bluetooth connectivity concerns after upgrading to iOS 8.0 and later. Conditions typically experienced include inability to pair the iPhone to the system, poor sound quality during phone calls placed through the audio/navigation system, and the inability to place a hands free phone call using the audio/navigation system.
T-TT-0337-152017-08-14. 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-SB-0101-11 Rev2017-08-14. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM. TSB: When servicing interior electrical switches and components, please note the precautions in this bulletin to avoid damaging electrical components and switches. Many lubricants, cleaners, and automotive chemicals contain silicone or other compounds that may contaminate electrical contacts, and therefore increase electrical resistance and decrease switch performance. The use of any cleaners or fluids may increase the risk of further damage to electrical components.
T-SB-0025-152017-08-14. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. TSB: While a vehicle is in inventory, the battery is subject to conditions that can reduce its performance and life. Batteries can become discharged due to an extended storage period, temperature, parasitic drain, or while demonstrating vehicle features and benefits in the sales process. Battery inspection and maintenance are required in order to ensure proper operation and optimal battery life. As described in this bulletin, operating the engine for 30 minutes after 60 days in storage and every 30 days thereafter will help to maintain battery State of Charge (SOC). This process supplements other movements of the vehicle as it is staged, and has specific restrictions on how maintenance is to be done. Also described in this bulletin are 2 other approved methods for maintaining battery State of Charge.
T-TT-0344-152017-08-14. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:SOFTWARE. TT: iPhone text messages do not appear on multimedia display.
T-SB-0013-14 Rev2017-08-14. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. TSB: Some 2013 - 2015 model year Prius vehicles may exhibit a MIL "ON" condition with Diagnostic Trouble Code (DTC) P0A80 stored due to dust or debris buildup in the HV Battery Cooling Fan. Use the following Repair Procedure to address this condition.
ZE3_WEP_Dealer D2017-08-01. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Electronic Communication: In our continuing efforts to ensure the best in customer satisfaction, Toyota is announcing a Warranty Enhancement Program to extend the warranty coverage for repairs related to failure of the Intelligent Power Module (IPM). The vehicles covered under this Warranty Enhancement must first have Safety Recall E0E (launched in mid-February, 2014) performed (if applicable).
ZE3_WEP_Dealer L2017-08-01. Service bulletin. ELECTRICAL SYSTEM; HYBRID PROPULSION SYSTEM: INVERTER. Dealer Letter: In our continuing efforts to ensure the best in customer satisfaction, Toyota is announcing a Warranty Enhancement Program to extend the warranty coverage for repairs related failure of the Intelligent Power Module (IPM). The vehicles covered under this Warranty Enhancement must first have Safety Recall E0E (launched in mid-February, 2014) performed (if applicable). 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).
ZE3_WEP_Publishe2017-08-01. Service bulletin. HYBRID PROPULSION SYSTEM: INVERTER; ELECTRICAL SYSTEM. Region Letter: In our continuing efforts to ensure the best in customer satisfaction, Toyota is announcing a Warranty Enhancement Program to extend the warranty coverage for repairs related to failure of the Intelligent Power Module (IPM). The vehicles covered under this Warranty Enhancement must first have Safety Recall E0E (launched in mid-February, 2014) performed (if applicable). 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-0133-142017-08-01. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM:SOFTWARE. TSB: Toyota models equipped with the Premium HDD Navigation (AVN/AW-EMV) System require a Special Service Tool (SST) USB drive to update the map, points of interest, Gracenote®, and system software. The SST is used with all vehicles to deliver the update, however a unique Activation Number is required for each vehicle. Activation Numbers are provided in an Activation Card Number (ACN) pamphlet available through the normal parts ordering system.
T-SB-0006-13 Rev2017-08-01. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM:SOFTWARE. TSB: Toyota models equipped with the Premium HDD Navigation (AVN/AW-EMV) System will periodically require an update to the Gracenote Database. Gracenote includes detailed information for songs (e.g., Genre, Artist, Song Title, Album Name, etc.) The Gracenote update will be included on the "USB Drive Navigation Map Update" SST. A Gracenote update must be performed before a Navigation Map Update. A Navigation Map Update is not required to complete the Gracenote update.
T-TT-0309-142017-08-01. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). Tech Tip: Some customers may experience Bluetooth disconnections or loss of SMS Text Message Functionality on the navigation/audio system with Android phones running OS 4.4 or later. Condition tends to occur to customers who have many previous text messages on their phones.
T-TT-0307-142017-08-01. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). Tech Tip: Customer complains of carious Bluetooth connectivity concerns after upgrading to iOS 8.0 and later. Conditions typically experienced include inability to pair the iPhone to the system, poor sound quality during phone calls placed through the audio/navigation system, and the inability to place a hands free phone call using the audio/navigation system.
T-SB-0092-14 Rev2017-08-01. Service bulletin. HYBRID PROPULSION SYSTEM: INVERTER; ELECTRICAL SYSTEM. TSB: The purpose of this general information Service Bulletin is to inform the market that sub-component diagnosis and replacement is now available for the Hybrid Inverter with Converter assembly equipped on 2010 - 2015 model year Prius and 2012 - 2015 model year Prius V vehicles.
T-SB-0013-14 REV2017-06-12. Service bulletin. ELECTRICAL SYSTEM; HYBRID PROPULSION SYSTEM. TSB: SOME 2013 – 2015 MODEL YEAR PRIUS VEHICLES MAY EXHIBIT A MIL “ON” CONDITION WITH DIAGNOSTIC TROUBLE CODE (DTC) P0A80 STORED DUE TO DUST OR DEBRIS BUILDUP IN THE HV BATTERY COOLING FAN. USE THE FOLLOWING REPAIR PROCEDURE TO ADDRESS THIS CONDITION.
ZF5_T-SB-0036-162017-04-05. Service bulletin. HYBRID PROPULSION SYSTEM: INVERTER; ELECTRICAL SYSTEM. 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 POL2017-04-04. Service bulletin. ELECTRICAL SYSTEM; HYBRID PROPULSION SYSTEM: INVERTER. 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 LETTE2017-04-04. Service bulletin. HYBRID PROPULSION SYSTEM: INVERTER; 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-0365-152017-03-28. Service bulletin. 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-0363-152017-03-28. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES. 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.
T-SB-0012-13 REV2017-03-21. Service bulletin. ENGINE; ELECTRICAL SYSTEM. "TSB: FLASH REPROGRAMMING ALLOWS THE ECU SOFTWARE TO BE UPDATED WITHOUT REPLACING THE ECU. FLASH CALIBRATION UPDATES FOR SPECIFIC VEHICLE MODELS/ECUS ARE RELEASED AS FIELD-FIX PROCEDURES DESCRIBED IN INDIVIDUAL SERVICE BULLETINS. THIS BULLETIN DETAILS THE TECHSTREAM ECU FLASH REPROGRAMMING PROCESS AND OUTLINES USE OF THE TECHNICAL INFORMATION SYSTEM (TIS) AND THE CALIBRATION UPDATE WIZARD (CUW). FLASH CALIBRATION UPDATES CAN ONLY BE APPLIED TO THE VEHICLE/ECU COMBINATION FOR WHICH THEY ARE INTENDED. ECUS HAVE INTERNAL SECURITY THAT WILL NOT ALLOW THEM TO BE PROGRAMMED WITH ANOTHER ECU’S INFORMATION."
T-SB-0119-152017-03-02. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. TSB: THIS BULLETIN INCLUDES BASIC PROCEDURES FOR PERFORMING A RESCUE CHARGE ON NI-MH HIGH VOLTAGE (HV) BATTERIES. THIS BULLETIN SHOULD BE USED IN CONJUNCTION WITH THE REPAIR MANUAL WHILE PERFORMING RESCUE CHARGE. THE GRX-5100 SHOULD BE USED WHEREVER THE REPAIR MANUAL REFERENCES THE TOYOTA HYBRID SYSTEM (THS) CHARGER.
T-TT-0385-162017-03-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. "TECH TIP: THIS TECH TIP IS BEING PROVIDED TO BRING ATTENTION TO THE NEW LOCATION OF THE ENTUNE/NAV/MAP UPDATE AND UPGRADE USB DIRECTORY. CLICK ON THE TIS TAB, DIAGNOSTICS TAB, TELEMATICS TAB, AND THE DOCUMENT IS NOW LOCATED UNDER THE REFERENCE DOCUMENTS SECTIONS. THIS CHANGE HAS OCCURRED TO HELP SPEED UP THE UPDATING PROCESS OF THIS DOCUMENT. "
T-SB-0036-162017-02-27. Service bulletin. HYBRID PROPULSION SYSTEM: INVERTER; ELECTRICAL SYSTEM. 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.
T-TT-0395-162017-02-23. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. 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.

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