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Service bulletins for the 2015 Toyota Corolla

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.

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

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Bulletins, newest first
T-TT-0309-14 REV2017-03-24. Service bulletin. EQUIPMENT:ELECTRICAL. TT: 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-SB-0028-142017-03-23. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. "TSB: LONG-TERM OR OFF-SITE STORAGE REQUIRES SPECIAL CARE TO KEEP VEHICLES FACTORY FRESH AND READY FOR DELIVERY. THE FOLLOWING GUIDELINES SHOULD BE PERFORMED TO MINIMIZE VEHICLE COMPONENT/PART DEGRADATION DUE TO EXTENDED VEHICLE STORAGE CONDITIONS. LONG-TERM STORAGE CAN AFFECT A VEHICLE’S SYSTEMS AND COMPONENTS. ANY PROBLEMS THAT ARE FOUND SHOULD BE CORRECTED IMMEDIATELY."
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-TT-0378-152017-03-03. Service bulletin. EQUIPMENT; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. TT: SOME CUSTOMERS MAY EXPERIENCE INTERMITTENT BLUETOOTH DISCONNECTIONS IF THEY TURN OFF BLUETOOTH AUDIO IN THE BLUETOOTH CONNECTION MENU ON AN ANDROID PHONE
T-TT-0375-152017-03-02. Service bulletin. EQUIPMENT. 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.
T-TT-0377-152017-03-02. Service bulletin. EQUIPMENT. TT: SOME CUSTOMERS MAY EXPERIENCE POOR OUTGOING BLUETOOTH SOUND QUALITY, THIS CAN OCCUR FOR VARIOUS REASONS. CURRENT MULTIMEDIA SYSTEMS ARE DESIGNED WITH THE ABILITY TO ADJUST BLUETOOTH SOUND QUALITY TO COMPENSATE FOR ECHO OR EXCESSIVE BACKGROUND NOISE.
T-TT-0374-152017-03-02. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT. "TT: SINCE MY 2011, SEVERAL DIFFERENT UPDATE OR UPGRADE USB SST'S HAVE BEEN ISSUED FOR TOYOTA AUDIO AND NAVIGATION SYSTEM. REFER TO THE CHART BELOW FOR A COMPREHENSIVE LIST OF ALL CURRENT AND PREVIOUSLY ISSUED USB SSTS AND THEIR APPLICABILITY. "
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-TT-0392-16 REV2017-02-23. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. TT: SOME CUSTOMERS MAY EXPERIENCE BLUETOOTH CONNECTION ISSUES AFTER UPDATING THE ANDROID OPERATING SYSTEM TO 5.X.X (LOLLIPOP) OR LATER.
T-TT-0409-162017-01-05. Service bulletin. SERVICE BRAKES. TT: IN SOME MY14 – MY17 COROLLA VEHICLES WITH LESS THAN 10,000 MILES, CUSTOMERS MAY EXPERIENCE A VIBRATION FEELING WHEN BRAKING OR ON DECELERATION. THIS CAN OCCUR AT VARIOUS SPEEDS OR PEDAL APPLICATION FORCES.
T-SB-0015-15 REV2017-01-05. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. 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.26.42) OR ENTUNE™ PREMIUM AUDIO (VERSION AU.26.61) MAY EXHIBIT ONE OR MORE OF THE FOLLOWING CONDITIONS.
T-SB-0080-162017-01-05. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM. TSB: SOME 2014 – 2016 MODEL YEAR COROLLA VEHICLES MAY EXHIBIT A MIL “ON” CONDITION WITH DIAGNOSTIC TROUBLE CODE (DTC) P2610 PRESENT, INDICATING AN ECM/PCM INTERNAL ENGINE OFF TIMER PERFORMANCE CONDITION. THE ENGINE CONTROL MODULE (ECM) LOGIC HAS BEEN MODIFIED TO REDUCE THE POSSIBILITY OF THIS CONDITION. FOLLOW THE REPAIR PROCEDURE BELOW TO ADDRESS THIS CONDITION.
T-SB-0015-15 REV2017-01-05. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. 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.26.61) MAY EXHIBIT ONE OR MORE OF THE FOLLOWING CONDITIONS.
T-TT-0409-162016-12-20. Service bulletin. SERVICE BRAKES. TT: IN SOME MY14 – MY17 COROLLA VEHICLES WITH LESS THAN 10,000 MILES, CUSTOMERS MAY EXPERIENCE A VIBRATION FEELING WHEN BRAKING OR ON DECELERATION. THIS CAN OCCUR AT VARIOUS SPEEDS OR PEDAL APPLICATION FORCES.
T-SB-0015-152016-12-20. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. 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.26.42) OR ENTUNE™ PREMIUM AUDIO (VERSION AU.26.61) MAY EXHIBIT ONE OR MORE OF THE FOLLOWING CONDITIONS.
T-SB-0080-162016-12-20. Service bulletin. HYBRID PROPULSION SYSTEM; ENGINE. TSB: SOME 2014 – 2016 MODEL YEAR COROLLA VEHICLES MAY EXHIBIT A MIL “ON” CONDITION WITH DIAGNOSTIC TROUBLE CODE (DTC) P2610 PRESENT, INDICATING AN ECM/PCM INTERNAL ENGINE OFF TIMER PERFORMANCE CONDITION. THE ENGINE CONTROL MODULE (ECM) LOGIC HAS BEEN MODIFIED TO REDUCE THE POSSIBILITY OF THIS CONDITION. FOLLOW THE REPAIR PROCEDURE BELOW TO ADDRESS THIS CONDITION.
T-SB-0015-15 REV2016-12-17. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. 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.26.61) MAY EXHIBIT ONE OR MORE OF THE FOLLOWING CONDITIONS.
T-SB-0086-162016-11-17. Service bulletin. FUEL/PROPULSION SYSTEM; FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP. TSB: SOME 2014 – 2016 MODEL YEAR COROLLA VEHICLES MAY EXHIBIT A “NO CLICK” AND/OR “NO SPRING RETURN” CONDITION FROM THE FUEL CAP WHEN FULLY SEATED AND SEALED. IN SOME INSTANCES, MIL ON MAY OCCUR WITH DTC P0455, P0456 (GROSS AND SMALL EVAPORATE LEAK). IN SOME VEHICLES THE FUEL FILLER NECK MAY BE OUT OF POSITION LEADING TO THIS CONDITION. FOLLOW THE PROCEDURES IN THIS BULLETIN TO ADDRESS THIS CONDITION.
T-SB-0086-142016-04-12. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
T-SB-003-142016-03-31. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
T-SB-0067-142016-03-31. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
T-TT-0277-132016-03-31. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
T-SB-0043-14 R12016-03-31. Service bulletin. ELECTRICAL SYSTEM. SUMMARY TO BE PROVIDED ON A FUTURE DATE.

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