Service bulletins for the 2015 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.
329 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
| T-SB-0074-20 | 2020-09-14. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. TSB: Some 2003 ? 2020 model year Prius, Prius C, Prius V; 2006 ? 2019 model year Highlander Hybrid Vehicle; 2007 ? 2020 Camry Hybrid Vehicle; 2013 ? 2020 model year Avalon Hybrid Vehicle; 2016 ? 2020 model year Mirai and RAV4 Hybrid Vehicle; and 2020 model year Corolla Hybrid Vehicles may exhibit a MIL ON condition with Diagnostic Trouble Codes (DTCs) P0A80/P1AC000 and/or P0A7F/P1A8000 stored due to dust or debris buildup in the HV battery cooling fan and/or HV cooling filter. Follow the procedure in this bulletin to address this condition. |
|---|---|
| T-SB-0036-16 | 2020-08-24. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; HYBRID PROPULSION SYSTEM: INVERTER; ENGINE. TSB: Some 2010 - 2015 model year Prius and 2012 - 2017 model year Prius V vehicles may exhibit a MIL ON condition with Diagnostic Trouble Codes (DTCs) P0A94, P324E, P0A1A, and/or P3004, indicating a malfunction has occurred in the inverter assembly with converter. Follow the Repair Procedure in this bulletin to identify the specific components within the inverter assembly with converter that need to be replaced and address this condition. |
| TTT043217 Rev1 | 2018-12-17. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. TT: Some Customers may complain about a Hybrid Vehicle Battery cooling system warning message. This warning message may appear when the HV Battery cooling system loses efficiency due to debris on the filter and or some object obstructing the air inlet. |
| TTT043217 | 2018-12-17. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. TT: Some Customers may complain about a Hybrid Vehicle Battery cooling system warning message. This warning message may appear when the HV Battery cooling system loses efficiency due to debris on the filter and or some object obstructing the air inlet. |
| T-TT-0395-16 | 2018-06-11. 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-0365-15 | 2018-04-23. 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-SB-0013-14 Rev | 2018-04-23. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. 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. |
| T-TT-0365-15 Rev | 2018-04-02. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. TT: A vehicle may arrive to the dealer with a MIL ?ON? condition and P0A80 or P1AC000 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-SB-0025-15 | 2017-08-14. 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-SB-0087-14 Rev | 2017-08-14. Service bulletin. HYBRID PROPULSION SYSTEM; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY. TSB: Prius and Mirai vehicles are equipped with 2 types of batteries: * Hybrid Vehicle (HV) battery * 12-volt auxiliary battery If Prius or Mirai vehicles are put into storage, the state of charge (SOC) of its HV battery and auxiliary battery will gradually decrease. To prevent the auxiliary battery from becoming discharged during storage, proper maintenance is necessary. Please perform the following maintenance service for the HV battery and 12-volt auxiliary battery. NOTE * Before disconnecting the auxiliary battery, confirm the shift lever is in the "P" position and apply the parking brake completely. The shift lever CANNOT be shifted from the "P" position with the 12-volt auxiliary battery disconnected. * If the negative (-) terminal of the auxiliary battery is reconnected, even if the power button is in the "START" mode, the hybrid/fuel cell system may NOT start. In this case, push the "POWER" button and select the "START" mode again to start the hybrid/fuel cell system (the "READY" light is ON). If the hybrid/fuel cell system still does NOT start (the "READY" light is OFF), refer to the Repair Manual. |
| T-SB-0025-15 | 2017-08-14. 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-SB-0013-14 Rev | 2017-08-14. 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. |
| T-SB-0087-14 | 2017-08-01. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY. TSB: Prius and vehicles are equipped with 2 types of batteries: ? Hybrid Vehicle (HV) battery ? 12-volt auxiliary battery If Prius or vehicles are put into storage, the state of charge (SOC) of its HV battery and auxiliary battery will gradually decrease. To prevent the auxiliary battery from becoming discharged during storage, proper maintenance is necessary. Please perform the following maintenance service for the HV battery and 12-volt auxiliary battery. |
| T-TT-0365-15 | 2017-03-28. 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-0363-15 | 2017-03-28. 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-0119-15 | 2017-03-02. 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-SB-0198-11 REV | 2016-12-14. Service bulletin. HYBRID PROPULSION SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. TSB: FOR VEHICLES THAT ARE USED UNDER CERTAIN SEVERE OPERATING CONDITIONS, THE HV BATTERY COOLING FAN MAY EXPERIENCE AN EXCESSIVE BUILDUP OF DUST, LINT, OR OTHER DEBRIS THAT CAN REDUCE THE EFFICIENCY OF THE HV BATTERY COOLING SYSTEM. HV BATTERY COOLING FAN MAINTENANCE AND CLEANING SHOULD BE PERFORMED TO ADDRESS THIS CONDITION. |
| T-TT-0403-16 | 2016-12-14. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; HYBRID PROPULSION SYSTEM. TT: SOME PRIUS PHV CUSTOMERS MAY NOTICE A CHANGE IN THE DISPLAYED EV DISTANCE OR HAVE A CONCERN ABOUT THE HV BATTERY PERFORMANCE BASED ON THIS VALUE. |
| T-SB-0087-14 | 2016-04-12. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. SUMMARY TO BE PROVIDED ON A FUTURE DATE. |
| T-TT-0185-12 | 2015-04-09. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. TOYOTA PRIUS: CUSTOMERS MAY EXPERIENCE A CHANGE IN THE EV DISTANCE DISPLAY OR MAY HAVE CONCERNS REGARDING THE HV BATTERY PERFORMANCE. *LJ |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.