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Service bulletins for the 2015 Toyota Highlander

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.

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

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Bulletins, newest first
T-TT-0339-152017-04-07. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT. TT: SOME VEHICLES MAY EXHIBIT AN ERROR MESSAGE WHEN TRYING TO PERFORM A RADIO SOFTWARE UPDATE: "UNABLE TO UPDATE THE SOFTWARE. PLEASE TRY AGAIN LATER." IF THE FOLLOWING SCREEN IS SEEN, FOLLOW THE DIRECTIONS BELOW.
T-TT-0374-15 REV2017-04-07. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT. "TT: SINCE MY 2011, SEVERAL DIFFERENT UPDATE OR UPGRADE USB SSTS HAVE BEEN ISSUED FOR TOYOTA AUDIO AND NAVIGATION SYSTEMS. REFER TO THE CHART BELOW FOR A COMPREHENSIVE LIST OF ALL CURRENT AND PREVIOUSLY ISSUED USB SSTS AND THEIR APPLICABILITY. "
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-0023-162017-04-06. Service bulletin. EQUIPMENT; STRUCTURE:BODY:DOOR. TSB: SOME 2014 – 2015 MODEL YEAR HIGHLANDER AND HIGHLANDER HV VEHICLES MAY EXHIBIT A CONDITION IN WHICH THE POWER BACK DOOR IS INOPERATIVE OR STOPS DURING OPERATION. IN SOME CASES THIS CONDITION MAY BE ASSOCIATED WITH COLD WEATHER. FOLLOW THE REPAIR PROCEDURE IN THIS BULLETIN TO ADDRESS THIS CONDITION.
T-SB-0048-162017-04-05. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. TSB: SOME 2015 MODEL YEAR HIGHLANDER AND HIGHLANDER HV VEHICLES EQUIPPED WITH DUAL FRONT AIR CONDITIONING SYSTEMS MAY EXHIBIT AN INTERMITTENT BUZZING NOISE CONDITION COMING FROM THE CENTER OF THE INSTRUMENT PANEL DURING HVAC OPERATION. THE NOISE OCCURS DURING THE OPERATION OF THE LH AND RH AIR MIX SERVO MOTORS. THE REPAIR PROCEDURE IN THIS BULLETIN HAS BEEN DEVELOPED TO ADDRESS THIS CONDITION.
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-0234-13 REV2017-03-28. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT. TT: SINCE MY 2011, SEVERAL DIFFERENT UPDATE OR UPGRADE USB SSTS HAVE BEEN ISSUED FOR TOYOTA AUDIO AND NAVIGATION SYSTEMS. REFER TO THE CHART BELOW FOR A COMPREHENSIVE LIST OF ALL CURRENT AND PREVIOUSLY ISSUED USB SSTS AND THEIR APPLICABILITY.
T-TT-0344-15 REV2017-03-28. Service bulletin. EQUIPMENT. TT: IPHONE TEXT MESSAGES DO NOT APPEAR ON MULTIMEDIA DIS[PLAY.
T-TT-0360-152017-03-28. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT. TT: CUSTOMERS MAY EXPERIENCE CONNECTIVITY ISSUES WHEN THE FOLLOWING CONDITIONS ARE MET: THE CUSTOMER'S IPHONE IS OPERATING ON IOS9 FIRMWARE. THE CUSTOMER'S IPHONE IS CONNECTED TO THE VEHICLE VIA BLUETOOTH. THE CUSTOMER MAY COMPLAIN OF THE FOLLOWING ISSUES: WHEN RECEIVING TWO INCOMING CALLS SIMULTANEOUSLY, BOTH CALLS ARE ENDED AUTOMATICALLY. ITUNES RADIO APP DOES NOT PLAY VIA BLUETOOTH AUDIO. PODCAST AND AUDIOBOOK MEDIA PLAYBACK IS INOPERATIVE VIA BLUETOOTH AUDIO.
T-TT-0357-152017-03-28. Service bulletin. SUSPENSION; TIRES:TEMPORARY/EMERGENCY SPARE TIRE. TT: SPARE TIRE CARRIER WILL BIND/SEIZE WHEN LOWERING OR RAISING SPARE TIRE OR CABLE WILL NOT FULLY EXTEND WHEN ATTEMPTING TO LOWER SPARE TIRE, THEREFORE MAKING IT DIFFICULT TO REMOVE FROM THE CABLE.
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-TT-0381-162017-03-21. Service bulletin. EQUIPMENT. TECH TIP: SOME CUSTOMERS MAY EXPERIENCE DIFFICULTY PROGRAMMING HOMELINK.
T-TT-0322-15 REV2017-03-21. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. TECH TIP: SOME VEHICLES MAY EXPERIENCE A CONDITION IN WHICH THE DRAIN HOSES FOR THE SUNROOF/MOONROOF ASSEMBLY BECOME KINKED, OR PINCHED. THIS MAY CAUSE WATER LEAKS INTO THE CABIN FROM THE HOUSING ASSEMBLY DRIP TRAYS, OR THE CUSTOMER MAY NOTE WATER STAINS ON THE HEADLINER ASSEMBLY.
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-0315-142017-03-07. Service bulletin. WHEELS. "TT: CHROMETEC (PLASTIC CLAD) WHEELS ARE BEING DAMAGED DURING MOUNTING AND DISMOUNTING OF TIRES. REFER TO PHOTOS BELOW FOR IDENTIFYING PLASTIC AND ALUMINUM PORTIONS OF WHEEL:"
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-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-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.
T-SB-0035-162017-02-23. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT. TSB: SOME 2014 MODEL YEAR APPLICABLE VEHICLES EQUIPPED WITH ENTUNE™ AUDIO (VERSION 010169) / ENTUNE™ AUDIO PLUS (VERSION 010171) / ENTUNE™ PREMIUM AUDIO (VERSION 010185) MAY EXHIBIT ONE OR MORE OF THE FOLLOWING CONDITIONS.
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.

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