Service bulletins for the 2012 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.
340 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| T-TT-0362-15 | 2018-04-23. Service bulletin. ENGINE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. TT: The vehicle may be difficult to start or have an abnormally low or rough idle after the battery has been disconnected or power to the Engine ECM has been interrupted. |
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| T-TT-0360-15 | 2018-04-23. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. 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-0324-15 | 2018-04-23. Service bulletin. POWER TRAIN; ENGINE. TechTip: Condition: Engine No Start and/or Poor Engine Power DTCs set immediately after performing service on the Inverter such as SSC D0M for IPM replacement or Inverter Assembly Installation. |
| T-TT-0381-16 | 2018-04-23. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Tech Tip: Some customers may experience difficulty programming HomeLink. |
| TSB-0012-13 Rev2 | 2018-04-23. Service bulletin. ENGINE; ELECTRICAL SYSTEM:SOFTWARE. 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-0091-12 Rev | 2018-04-23. Service bulletin. STRUCTURE:BODY:DOOR. Some 2008-2012 model year Highlander and Highlander HV vehicles may exhibit a condition where the Power Back Door does no close properly. The Back Door may get to the fully closed position and then reverse to the open position. In cases where the Power Back Door does not close, a pop or clunk noise may also be heard when the back door latch reaches the striker during the power close function. |
| T-SB-0187-12 | 2018-04-23. Service bulletin. STRUCTURE:BODY. Toyota vehicles are equipped with either conventional or run-flat tires. Sometimes punctures may occur as a result of contact with road debris or other hazards. If a puncture occurs, it may be possible to repair the tire and return it to service. With a conventional tire it is not possible to drive for an extended amount of time with the tire at low pressures as damage to the tire may occur. With run-flat tires, due to reinforced sidewalls, it is possible to drive for up to 100 miles (160 km) at speeds less than 55 mph (90 km/h) with little or no damage to the tire. |
| T-TT-0005-10 Rev | 2018-04-23. Service bulletin. ENGINE. Starting with the 2010 MY, Toyota began a gradual transition to the use of synthetic 0w-20 viscosity engine oil. |
| T-TT-0005-10 Rev | 2018-04-23. Service bulletin. ENGINE. Starting with the 2010 MY, Toyota began a gradual transition to the use of synthetic 0w-20 viscosity engine oil. |
| SET Airbag Senso | 2018-04-23. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This communication pertains to a current safety recall being conducted by the Southeast Toyota Distributors LLC (SET). TMS is sending this communication for informational purposes in the event you are contacted by a customer covered by this recall. |
| T-TT-0118-11 Rev | 2018-04-23. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. technicians should confirm the following key points to minimize the potential for future MIL "ON" concerns after HV Battery Replacement. |
| T-TT-0213-13 | 2018-04-23. Service bulletin. AIR BAGS. Toyota vehicles are equipped with SRS, including various airbags and in some models, seat belt pre-tensioners, to help reduce the risk of injury in a collision. If a customer expresses any concerns that the SRS airbags or pretensioner devices did not perform as expected, please follow the steps in the recommendations section below. |
| T-SB-0064-10 Rev | 2018-04-23. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin is now obsolete. Please see T-SB-0012-13. |
| T-SB-0012-13 | 2018-04-23. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. 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 TIS and the CUW. |
| T-SB-0064-10 Rev | 2018-04-23. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. 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. |
| Recall Follow Up | 2018-04-23. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Toyota will be sending Safety Recall Follow-up notices to remind owners whose vehicles have not yet had campaign repairs completed |
| Recall Follow Up | 2018-04-23. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Toyota will be sending Safety Recall Follow-up notices to remind owners whose vehicles have not yet had campaign repairs completed |
| SST Requirements | 2018-04-23. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SSTs are key elements to provide your customers with swift and accurate repairs resulting in superior customer satisfaction. |
| T-TT-0226-13 | 2018-04-23. Service bulletin. ELECTRICAL SYSTEM. The customer is having difficulty changing the multi-display screen from Day Mode. If the multi-display screen is set to Day Mode when the headlights are on, the setting we be memorized when the engine is turned off. |
| T-TT-0223-13 | 2018-04-23. Service bulletin. STEERING: STEERING WHEEL/HANDLE BAR. The vehicle will not start or ready-on and the steering wheel lock is engaged so that the steering wheel may only be turned very little from side-to-side. |
| T-SB-0034-13 | 2018-04-23. Service bulletin. STEERING: STEERING WHEEL/HANDLE BAR. Some 2008 ? 2013 model year Highlander and Highlander HV vehicles may exhibit a clunk, pop, or knock-type noise when turning the steering wheel left or right. A new intermediate shaft has been developed to address this condition. Use the following repair procedure to remove and replace the steering intermediate shaft. |
| T-SB-0391-08 Rev | 2018-04-23. Service bulletin. POWER TRAIN. This bulletin contains general vehicle pulling diagnosis and repair procedures along with specific information to help correct pulling complaints. |
| T-SB-0033-13 | 2018-04-23. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Some customers may inquire about the frequency and power output of the Smart Key/Smart Entry systems used on various models. The Smart Key/Smart Entry systems conform to all applicable FCC rules. This bulletin details the applicable specifications for these systems. |
| T-TT-0005-10 | 2018-04-23. Service bulletin. ENGINE. Starting with 2010 Model Year, Toyota began a gradual transition to the use of synthetic 0W-20 viscosity engine oil. There a re man benefits of this oil. |
| T-SB-0041-13 | 2018-04-23. Service bulletin. ENGINE. Immediately following a cold soak startup, some 2009 ? 2013 model year vehicles equipped with 1AR-FE or 2AR-FE engines may exhibit a brief knock/rattle noise from the engine compartment for approximately one second. Follow the repair procedure below to address this condition. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.