Technical Service Bulletins (TSBs) for the 2015 Prius c are official communications between Toyota & their dealerships that describe processes for troubleshooting or fixing certain common problems. All vehicle manufacturers are required by U.S. law to make their TSBs available to the public.

    ENGINE (PWS)

    • TSB #T-SB-0012-13 REV

      Date Announced:
      JAN 15, 2015
      NHTSA ID:
      #10096036

      "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. Read More »

    HYBRID POWERTRAIN: INVERTER

    • TSB #T-TT-0397-16

      Date Announced:
      MAY 24, 2016
      NHTSA ID:
      #10096908

      TT: SOME CUSTOMERS MAY COMPLAIN ABOUT A MIL ?ON? WITH A P0A80 DTC. IN THESE CASES, THE HV BATTERY WOULD NEED TO BE REPLACED. ALONG WITH THE HV BATTERY REPLACEMENT, THE COOLING SYSTEM FILTER WILL NEED EITHER CLEANING OR REPLACEMENT. Read More »

    HYBRID PROPULSION SYSTEM

    • TSB #T-SB-0198-11 REV

      Date Announced:
      JUL 07, 2016
      NHTSA ID:
      #10086292

      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. Read More »

    • TSB #T-SB-0198-11 REV

      Date Announced:
      JUL 07, 2016
      NHTSA ID:
      #10087882

      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. Read More »

    ELECTRICAL SYSTEM

    • TSB #T-SB-0015-15 REV

      Date Announced:
      JUL 25, 2016
      NHTSA ID:
      #10087907

      TSB: REV2 THE REQUIRED TOOLS & EQUIPMENT SECTION HAS BEEN REMOVED. THE NEW SOFTWARE VERSION INFORMATION CHART HAS BEEN UPDATED. SOME 2014 MODEL YEAR COROLLA VEHICLES EQUIPPED WITH ENTUNE? AUDIO (VERSION BU.26. Read More »

    • TSB #T-SB-0015-15 REV

      Date Announced:
      JUL 14, 2016
      NHTSA ID:
      #10087831

      TSB: REV1 THE INTRODUCTION AND THE SOFTWARE VERSION SECTIONS HAVE BEEN UPDATED. SOME 2014 MODEL YEAR COROLLA VEHICLES EQUIPPED WITH ENTUNE? AUDIO (VERSION BU.26.42) OR ENTUNE? PREMIUM AUDIO (VERSION AU.26. Read More »

    • TSB #T-SB-0198-11 REV

      Date Announced:
      JUL 07, 2016
      NHTSA ID:
      #10087882

      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. Read More »

    • TSB #T-TT-0399-16

      Date Announced:
      JUN 09, 2016
      NHTSA ID:
      #10099947

      TT: MULTIMEDIA SYSTEMS RESET PROCEDURE SHOULD BE PERFORMED WHEN THE MULTIMEDIA SYSTEM NO LONGER RESPONDS OR REBOOTS ITSELF. Read More »

    • TSB #T-TT-0397-16

      Date Announced:
      MAY 24, 2016
      NHTSA ID:
      #10096908

      TT: SOME CUSTOMERS MAY COMPLAIN ABOUT A MIL ?ON? WITH A P0A80 DTC. IN THESE CASES, THE HV BATTERY WOULD NEED TO BE REPLACED. ALONG WITH THE HV BATTERY REPLACEMENT, THE COOLING SYSTEM FILTER WILL NEED EITHER CLEANING OR REPLACEMENT. Read More »

    • TSB #T-TT-0395-16

      Date Announced:
      MAY 11, 2016
      NHTSA ID:
      #10092768

      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. Read More »

    • TSB #T-TT-0392-16 REV

      Date Announced:
      MAY 04, 2016
      NHTSA ID:
      #10092684

      TT: SOME CUSTOMERS MAY EXPERIENCE BLUETOOTH CONNECTION ISSUES AFTER UPDATING THE ANDROID OPERATING SYSTEM TO 5.X.X (LOLLIPOP) OR LATER. Read More »

    • TSB #T-TT-0385-16

      Date Announced:
      FEB 25, 2016
      NHTSA ID:
      #10093361

      "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. Read More »

    • TSB #T-SB-0119-15

      Date Announced:
      DEC 02, 2015
      NHTSA ID:
      #10093479

      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. Read More »

    • TSB #T-SB-0087-14 REV

      Date Announced:
      SEP 01, 2015
      NHTSA ID:
      #10092018

      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 ... Read More »

    • TSB #T-SB-0012-13 REV

      Date Announced:
      JAN 15, 2015
      NHTSA ID:
      #10096036

      "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. Read More »

    ELECTRICAL SYSTEM:12V/24V/48V BATTERY

    • TSB #T-SB-0198-11 REV

      Date Announced:
      JUL 07, 2016
      NHTSA ID:
      #10086292

      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. Read More »

    • TSB #T-SB-0119-15

      Date Announced:
      DEC 02, 2015
      NHTSA ID:
      #10093479

      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. Read More »

    • TSB #T-TT-0365-15

      Date Announced:
      SEP 25, 2015
      NHTSA ID:
      #10096566

      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. Read More »

    • TSB #T-SB-0087-14

      Date Announced:
      AUG 11, 2014
      NHTSA ID:
      #10061713

      SUMMARY TO BE PROVIDED ON A FUTURE DATE. Read More »

    ELECTRICAL SYSTEM:SOFTWARE

    • TSB #T-SB-0015-15

      Date Announced:
      JUL 25, 2016
      NHTSA ID:
      #10086767

      TSB: REV2 THE REQUIRED TOOLS & EQUIPMENT SECTION HAS BEEN REMOVED. THE NEW SOFTWARE VERSION INFORMATION CHART HAS BEEN UPDATED. SOME 2014 MODEL YEAR COROLLA VEHICLES EQUIPPED WITH ENTUNE? AUDIO (VERSION BU.26. Read More »

    • TSB #T-SB-0015-15 REV

      Date Announced:
      JUL 14, 2016
      NHTSA ID:
      #10086507

      TSB: REV1 THE INTRODUCTION AND THE SOFTWARE VERSION SECTIONS HAVE BEEN UPDATED. SOME 2014 MODEL YEAR COROLLA VEHICLES EQUIPPED WITH ENTUNE? AUDIO (VERSION BU.26.42) OR ENTUNE? PREMIUM AUDIO (VERSION AU.26. Read More »

    • TSB #T-SB-0015-15 REV

      Date Announced:
      JUL 14, 2016
      NHTSA ID:
      #10087831

      TSB: REV1 THE INTRODUCTION AND THE SOFTWARE VERSION SECTIONS HAVE BEEN UPDATED. SOME 2014 MODEL YEAR COROLLA VEHICLES EQUIPPED WITH ENTUNE? AUDIO (VERSION BU.26.42) OR ENTUNE? PREMIUM AUDIO (VERSION AU.26. Read More »

    TIRES

    • TSB #T-SB-0026-14 REV

      Date Announced:
      SEP 15, 2015
      NHTSA ID:
      #10096708

      "TSB: DURING THE MANUFACTURING PROCESS TIRES ARE MOUNTED ON THE VEHICLE AS MATCHED SETS TO HELP REDUCE CONDITIONS SUCH AS PULLING OR DRIFTING. Read More »

    EQUIPMENT

    • TSB #T-SB-0015-15

      Date Announced:
      JUL 25, 2016
      NHTSA ID:
      #10086767

      TSB: REV2 THE REQUIRED TOOLS & EQUIPMENT SECTION HAS BEEN REMOVED. THE NEW SOFTWARE VERSION INFORMATION CHART HAS BEEN UPDATED. SOME 2014 MODEL YEAR COROLLA VEHICLES EQUIPPED WITH ENTUNE? AUDIO (VERSION BU.26. Read More »

    • TSB #T-SB-0015-15 REV

      Date Announced:
      JUL 25, 2016
      NHTSA ID:
      #10087907

      TSB: REV2 THE REQUIRED TOOLS & EQUIPMENT SECTION HAS BEEN REMOVED. THE NEW SOFTWARE VERSION INFORMATION CHART HAS BEEN UPDATED. SOME 2014 MODEL YEAR COROLLA VEHICLES EQUIPPED WITH ENTUNE? AUDIO (VERSION BU.26. Read More »

    • TSB #T-SB-0015-15 REV

      Date Announced:
      JUL 14, 2016
      NHTSA ID:
      #10086507

      TSB: REV1 THE INTRODUCTION AND THE SOFTWARE VERSION SECTIONS HAVE BEEN UPDATED. SOME 2014 MODEL YEAR COROLLA VEHICLES EQUIPPED WITH ENTUNE? AUDIO (VERSION BU.26.42) OR ENTUNE? PREMIUM AUDIO (VERSION AU.26. Read More »

    • TSB #T-SB-0044-16

      Date Announced:
      MAY 19, 2016
      NHTSA ID:
      #10096862

      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). Read More »

    • TSB #T-TT-0395-16

      Date Announced:
      MAY 11, 2016
      NHTSA ID:
      #10092768

      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. Read More »

    • TSB #T-TT-0392-16 REV

      Date Announced:
      MAY 04, 2016
      NHTSA ID:
      #10092684

      TT: SOME CUSTOMERS MAY EXPERIENCE BLUETOOTH CONNECTION ISSUES AFTER UPDATING THE ANDROID OPERATING SYSTEM TO 5.X.X (LOLLIPOP) OR LATER. Read More »

    • TSB #T-TT-0374-15 REV

      Date Announced:
      MAR 08, 2016
      NHTSA ID:
      #10097055

      "TT: SINCE MY 2011, SEVERAL DIFFERENT UPDATE OR UPGRADE USB SSTS HAVE BEEN ISSUED FOR TOYOTA AUDIO AND NAVIGATION SYSTEMS. Read More »

    • TSB #T-TT-0385-16

      Date Announced:
      FEB 25, 2016
      NHTSA ID:
      #10093361

      "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. Read More »

    • TSB #T-TT-0375-15

      Date Announced:
      DEC 07, 2015
      NHTSA ID:
      #10093567

      TT: FOR CUSTOMER CONCERNS OF NO OR POOR OUTGOING SOUND FROM THE BLUETOOTH SYSTEMS THERE ARE DIAGNOSTICS IN THE REPAIR MANUAL WHICH CAN BE PERFORMED TO DIAGNOSE THE CONDITION. Read More »

    • TSB #T-TT-0378-15

      Date Announced:
      DEC 07, 2015
      NHTSA ID:
      #10093681

      TT: SOME CUSTOMERS MAY EXPERIENCE INTERMITTENT BLUETOOTH DISCONNECTIONS IF THEY TURN OFF BLUETOOTH AUDIO IN THE BLUETOOTH CONNECTION MENU ON AN ANDROID PHONE Read More »

    • TSB #T-TT-0374-15

      Date Announced:
      DEC 01, 2015
      NHTSA ID:
      #10093540

      "TT: SINCE MY 2011, SEVERAL DIFFERENT UPDATE OR UPGRADE USB SST'S HAVE BEEN ISSUED FOR TOYOTA AUDIO AND NAVIGATION SYSTEM. Read More »

    • TSB #T-TT-0377-15

      Date Announced:
      DEC 01, 2015
      NHTSA ID:
      #10093563

      TT: SOME CUSTOMERS MAY EXPERIENCE POOR OUTGOING BLUETOOTH SOUND QUALITY, THIS CAN OCCUR FOR VARIOUS REASONS. Read More »

    • TSB #T-TT-0234-13 REV

      Date Announced:
      SEP 21, 2015
      NHTSA ID:
      #10096561

      TT: SINCE MY 2011, SEVERAL DIFFERENT UPDATE OR UPGRADE USB SSTS HAVE BEEN ISSUED FOR TOYOTA AUDIO AND NAVIGATION SYSTEMS. Read More »

    • TSB #T-TT-0344-15 REV

      Date Announced:
      SEP 15, 2015
      NHTSA ID:
      #10096555

      TT: IPHONE TEXT MESSAGES DO NOT APPEAR ON MULTIMEDIA DIS[PLAY. Read More »

    • TSB #T-SB-0087-14 REV

      Date Announced:
      SEP 01, 2015
      NHTSA ID:
      #10092018

      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 ... Read More »

    EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

    • TSB #T-SB-0015-15 REV

      Date Announced:
      JUL 14, 2016
      NHTSA ID:
      #10087831

      TSB: REV1 THE INTRODUCTION AND THE SOFTWARE VERSION SECTIONS HAVE BEEN UPDATED. SOME 2014 MODEL YEAR COROLLA VEHICLES EQUIPPED WITH ENTUNE? AUDIO (VERSION BU.26.42) OR ENTUNE? PREMIUM AUDIO (VERSION AU.26. Read More »

    • TSB #T-TT-0378-15

      Date Announced:
      DEC 07, 2015
      NHTSA ID:
      #10093681

      TT: SOME CUSTOMERS MAY EXPERIENCE INTERMITTENT BLUETOOTH DISCONNECTIONS IF THEY TURN OFF BLUETOOTH AUDIO IN THE BLUETOOTH CONNECTION MENU ON AN ANDROID PHONE Read More »

    EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)

    • TSB #T-TT-0399-16

      Date Announced:
      JUN 09, 2016
      NHTSA ID:
      #10099947

      TT: MULTIMEDIA SYSTEMS RESET PROCEDURE SHOULD BE PERFORMED WHEN THE MULTIMEDIA SYSTEM NO LONGER RESPONDS OR REBOOTS ITSELF. Read More »

    • TSB #T-TT-0374-15 REV

      Date Announced:
      MAR 08, 2016
      NHTSA ID:
      #10097055

      "TT: SINCE MY 2011, SEVERAL DIFFERENT UPDATE OR UPGRADE USB SSTS HAVE BEEN ISSUED FOR TOYOTA AUDIO AND NAVIGATION SYSTEMS. Read More »

    • TSB #T-TT-0374-15

      Date Announced:
      DEC 01, 2015
      NHTSA ID:
      #10093540

      "TT: SINCE MY 2011, SEVERAL DIFFERENT UPDATE OR UPGRADE USB SST'S HAVE BEEN ISSUED FOR TOYOTA AUDIO AND NAVIGATION SYSTEM. Read More »

    • TSB #T-TT-0234-13 REV

      Date Announced:
      SEP 21, 2015
      NHTSA ID:
      #10096561

      TT: SINCE MY 2011, SEVERAL DIFFERENT UPDATE OR UPGRADE USB SSTS HAVE BEEN ISSUED FOR TOYOTA AUDIO AND NAVIGATION SYSTEMS. Read More »

    EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL