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Service bulletins for the 2014 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.

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

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
T-TT-0262-132018-04-02. Service bulletin. ENGINE. Due to the improved performance and durability of 0w-20 synthetic oil, Toyota has extended the oil change intervals to 10,000 miles for most vehicles that require this oil. With this change, the following should be noted
T-TT-0262-132018-04-02. Service bulletin. ENGINE. Starting with the 2010 Model Year, Toyota began a gradual transition to the use of synthetic 0w-20 viscosity engine oil. There are multiple benefits of this oil. Due to the improved performance and durability of 0w-20 synthetic oil, Toyota has extended the oil change intervals to 10,000 miles for most vehicle that require this oil.
T-TT-0432-17_Rev2018-04-02. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. TT: Rev2 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. Refer to the information below to address this issue.
T-SB-0033-142018-04-02. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS. Some vehicles in particular geographic areas may exhibit a condition where the HVAC Evaporator Drain Hose has become obstructed with an insect nest. An insect repellent drain hose tip (ARINIX® Tip) is now available to help minimize future occurrences of this environmental condition. For some models, a new drain hose is required to properly fit the ARINIX® Tip. Follow the procedures in this bulletin for proper handling and installation of this optional service part.
LSC E0P Technica2018-04-02. Service bulletin. ENGINE AND ENGINE COOLING. Technical Instructions: LSC Expired on June 30, 2017. Technical Instructions for Limited Service Campaign E0P. HV Coolant Hose Clearance. Certain 2014 Model Year Highlander HV.
T-SB-0050-152017-08-14. Service bulletin. ENGINE; FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY. TSB: Some 2011 - 2015 model year Highlander HV vehicles may exhibit a condition of MIL "ON" with DTC(s) P2111 and/or P0A0F after a cold soak. Follow the Repair Procedure in this bulletin to address this condition.
T-TT-0262-13 Rev2017-08-14. Service bulletin. ENGINE AND ENGINE COOLING. TT: Starting with 2010 Model Year, Toyota began a gradual transition to the use of synthetic 0w-20 viscosity engine oil. There are multiple benefits of this oil. Due to the them improved performance and durability of 0w-20 synthetic oil, Toyota has extended the oil change intervals to 10,000 miles for most vehicles that require this oil.
T-TT-0262-13 Rev2017-08-14. Service bulletin. ENGINE AND ENGINE COOLING. TT: Starting with 2010 Model Year, Toyota began a gradual transition to the use of synthetic 0w-20 viscosity engine oil. There are multiple benefits of this oil. Due to the them improved performance and durability of 0w-20 synthetic oil, Toyota has extended the oil change intervals to 10,000 miles for most vehicles that require this oil.
T-SB-0050-152017-08-14. Service bulletin. ENGINE. TSB: Some 2011 - 2015 model year Highlander HV vehicles may exhibit a condition of MIL "ON" with DTC(s) P2111 and/or P0A0F after a cold soak. Follow the Repair Procedure in this bulletin to address this condition.
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-SB-0085-162017-01-05. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT:APPLIANCE:AIR CONDITIONER. TSB: SOME 2014 – 2015 MODEL YEAR HIGHLANDER VEHICLES MAY EXHIBIT A CONDITION WHEN THE A/C SYSTEM IS TURNED ON, IT MAY TAKE A LONGER THAN EXPECTED AMOUNT OF TIME UNTIL IT BEGINS TO BLOW COOL AIR. UNDER CERTAIN CONDITIONS A/C COOLING IS DELAYED 90 SEC. – 120 SEC. AN UPDATED A/C COMPRESSOR AND A/C AMPLIFIER ARE AVAILABLE TO ADDRESS THIS CONDITION. FOLLOW THE PROCEDURE IN THIS BULLETIN TO ADDRESS THIS CONDITION.
T-SB-0074-162017-01-04. Service bulletin. ELECTRICAL SYSTEM; ENGINE. TSB: SOME 2014 – 2015 MODEL YEAR HIGHLANDER VEHICLES MAY EXHIBIT A MIL “ON” CONDITION WITH DIAGNOSTIC TROUBLE CODE (DTC) P2610 (ECM/PCM ENGINE OFF TIMER PERFORMANCE) PRESENT. THE ENGINE CONTROL MODULE (ECM) LOGIC HAS BEEN MODIFIED TO REDUCE THE POSSIBILITY OF THIS CONDITION. PLEASE FOLLOW THE REPAIR PROCEDURE BELOW TO ADDRESS THIS CONDITION.
TC-14-0172014-09-02. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS. TOYOTA: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. LIMITED SERVICE CAMPAIGN (LSC), ON SOME VEHICLES, DUE TO AN INCORRECT POSITIONING OF TWO COOLANT HOSES ATTACHED TO HEATING SYSTEM WATER PUMP, ALLOWING CONTACT TO STEERING INTERMEDIATE SHAFT. MODEL 2014 HIGHLANDER. *PE

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