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Service bulletins for the 2016 Toyota Mirai

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.

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

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Bulletins, newest first
T-TT-0309-14 Rev2017-08-14. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). 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-0028-142017-08-14. Service bulletin. EQUIPMENT. 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-0026-14 Rev2017-08-14. Service bulletin. TRAILER HITCHES; EQUIPMENT:MECHANICAL; WHEELS. TSB: During the manufacturing process tires are mounted on the vehicle as matched sets to help reduce conditions such as pulling or drifting. If the wheels are replaced or refinished before vehicle delivery, it is important that the tires remain on the vehicle in the same location and in the same direction of rotation. Please refer to the following procedure to ensure that the original tires stay in the same location on the vehicle.
T-SB-0087-14 Rev2017-08-14. 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-TT-0344-152017-08-14. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT:ELECTRICAL. TT: iPhone text messages do not appear on multimedia display.
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-TT-0268-13 REV2017-04-07. Service bulletin. EQUIPMENT. "TT: SOME CUSTOMERS MAY ENCOUNTER BLUETOOTH CONNECTIVITY CONCERNS SUCH AS: • DIFFICULTY PAIRING THE PHONE. • INTERMITTENT BLUETOOTH FAILURE TO CONNECT WHEN FIRST TURNING ON THE VEHICLE. • VARIOUS BLUETOOTH AUDIO FUNCTIONS ARE NO LONGER FUNCTIONING WITH THE CUSTOMER’S PHONE, SUCH AS THE ABILITY TO CHANGE THE TRACK USING THE STEERING WHEEL CONTROLS. THESE CONCERNS CAN BE CAUSED BY CHANGES MADE ON THE CUSTOMER’S PHONE. MAKE SURE TO INQUIRE WITH THE CUSTOMER IF THE CONNECTIVITY CONCERNS OCCURRED AFTER RECEIVING AN OPERATING SYSTEM UPDATE ON THEIR PHONE OR IF THEY HAVE RESTORED THEIR PHONE DATA/SETTINGS RECENTLY."
T-SB-0044-162017-04-04. Service bulletin. EQUIPMENT. 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-SB-0026-14 REV2017-03-30. Service bulletin. TIRES. "TSB: DURING THE MANUFACTURING PROCESS TIRES ARE MOUNTED ON THE VEHICLE AS MATCHED SETS TO HELP REDUCE CONDITIONS SUCH AS PULLING OR DRIFTING. IF THE WHEELS ARE REPLACED OR REFINISHED BEFORE VEHICLE DELIVERY, IT IS IMPORTANT THAT THE TIRES REMAIN ON THE VEHICLE IN THE SAME LOCATION AND IN THE SAME DIRECTION OF ROTATION. PLEASE REFER TO THE FOLLOWING PROCEDURE TO ENSURE THAT THE ORIGINAL TIRES STAY IN THE SAME LOCATION ON THE VEHICLE."
T-TT-0344-15 REV2017-03-28. Service bulletin. EQUIPMENT. TT: IPHONE TEXT MESSAGES DO NOT APPEAR ON MULTIMEDIA DIS[PLAY.
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-0064-15 REV2017-03-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. "TSB: PRE-DELIVERY SERVICE (PDS) IS A CRITICAL STEP IN SATISFYING YOUR DEALERSHIP’S NEW CAR CUSTOMERS. CUSTOMER FEEDBACK INDICATES THE FOLLOWING AREAS DESERVE SPECIAL ATTENTION WHEN PERFORMING PDS: • CAREFUL INSPECTION FOR PAINT CHIPS/SCRATCHES AND BODY DENTS/DINGS. • PROPER OPERATION OF ELECTRICAL ACCESSORIES (INCLUDING INTERIOR LIGHT, CLOCK, AND RADIO RESET). • INTERIOR CLEANLINESS. • PROPER FUNCTION OF MECHANICAL SYSTEMS. A NEW PDS CHECK SHEET HAS BEEN DEVELOPED FOR THE 2016 MODEL YEAR MIRAI. SOME CHECK POINTS HAVE BEEN ADDED, EXPANDED, OR CLARIFIED. BULLETINS ARE AVAILABLE FOR ITEMS IN BOLD TYPE. "
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-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-SB-0124-152017-03-02. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. "A BATTERY IN A STORED VEHICLE IS SUBJECT TO CONDITIONS THAT CAN REDUCE ITS PERFORMANCE AND LIFE. THESE CONDITIONS INCLUDE STORAGE PERIOD, TEMPERATURE, PARASITIC DRAIN, AND BATTERY LOAD. BECAUSE OF THESE FACTORS, BATTERY INSPECTION AND MAINTENANCE ARE REQUIRED IN ORDER TO ENSURE PROPER OPERATION AND OPTIMAL BATTERY LIFE. AS A MATTER OF POLICY, TOYOTA DOES NOT PROVIDE BATTERY WARRANTY COVERAGE FOR DISCHARGED AND/OR FAILED BATTERIES DUE TO LACK OF MAINTENANCE. IT IS THE DEALER’S RESPONSIBILITY TO MAINTAIN THE SPECIFIED STATE OF CHARGE (SOC) OF THE VEHICLE’S BATTERY WHILE IN STOCK AND ASSURE PROPER STATE OF CHARGE (SOC) AT DELIVERY. TO ELIMINATE CUSTOMER SERVICE CONCERNS DUE TO AN UNDERCHARGED BATTERY DURING THE FIRST FEW WEEKS OF OWNERSHIP, ALL DEALERS SHOULD CHECK BATTERY STATE OF CHARGE (SOC) AND RECHARGE, IF NECESSARY, WITHIN 48 HOURS OF DELIVERY TO CUSTOMERS."
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-0009-162017-02-27. Service bulletin. ENGINE AND ENGINE COOLING. TSB: HYDROGEN FUEL CELL POWERED VEHICLES LIKE THE MIRAI USE A SPECIAL HIGH-INSULATION COOLANT DESIGNED TO PREVENT HIGH VOLTAGE GROUND FAULTS AND ASSOCIATED MIL “ON” (MALFUNCTION INDICATOR LIGHT) CONDITION. THIS SPECIAL COOLANT AND SPECIAL WATER MIX MUST BE USED ANY TIME COOLANT IS ADDED TO THE FUEL CELL (FC) COOLING SYSTEM RESERVOIR OR WHEN MAJOR SERVICES PERFORMED ON THE FUEL CELL STACK AND/OR FUEL CELL COOLING SYSTEM. USE OF WATER OR ANY COOLANT OTHER THAN “TOYOTA GENUINE FC STACK COOLANT” COULD RESULT IN DAMAGE TO THE FUEL CELL STACK AND/OR COOLING SYSTEM.
DEN-N3D7B-062017-02-24. Service bulletin. AIR BAGS. THIS COMMUNICATION IS INFORMING TOYOTA OF A DELAMINATION ISSUE WITHIN AN I.C. PRODUCED BY NXP AND ASSEMBLED INTO AIRBAG SENSOR SUPPLIED BY DENSO INTERNATIONAL AMERICA, INC. THIS DELAMINATION ISSUE MANIFESTS ITSELF AS AN OPEN CIRCUIT WITHIN THE SENSOR, CAUSING A DTC TO BE SET ON THE VEHICLE ALONG WITH A DECLARING “AIRBAG” LIGHT.
T-SB-0087-14 REV2017-02-16. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. 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-0064-15 REV2017-01-05. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. TSB: 2016 MIRAI PRE-DELIVERY SERVICE - REV2 THE WARRANTY INFORMATION SECTION HAS BEEN UPDATED. PRE-DELIVERY SERVICE (PDS) IS A CRITICAL STEP IN SATISFYING YOUR DEALERSHIP’S NEW CAR CUSTOMERS. CUSTOMER FEEDBACK INDICATES THE FOLLOWING AREAS DESERVE SPECIAL ATTENTION WHEN PERFORMING PDS: • CAREFUL INSPECTION FOR PAINT CHIPS/SCRATCHES AND BODY DENTS/DINGS. • PROPER OPERATION OF ELECTRICAL ACCESSORIES (INCLUDING INTERIOR LIGHT, CLOCK, AND RADIO RESET). • INTERIOR CLEANLINESS. • PROPER FUNCTION OF MECHANICAL SYSTEMS.
T-SB-0064-15 REV2016-12-19. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. TSB: 2016 MIRAI PRE-DELIVERY SERVICE - REV2 THE WARRANTY INFORMATION SECTION HAS BEEN UPDATED. PRE-DELIVERY SERVICE (PDS) IS A CRITICAL STEP IN SATISFYING YOUR DEALERSHIP’S NEW CAR CUSTOMERS. CUSTOMER FEEDBACK INDICATES THE FOLLOWING AREAS DESERVE SPECIAL ATTENTION WHEN PERFORMING PDS: • CAREFUL INSPECTION FOR PAINT CHIPS/SCRATCHES AND BODY DENTS/DINGS. • PROPER OPERATION OF ELECTRICAL ACCESSORIES (INCLUDING INTERIOR LIGHT, CLOCK, AND RADIO RESET). • INTERIOR CLEANLINESS. • PROPER FUNCTION OF MECHANICAL SYSTEMS.

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