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Service bulletins for the 2006 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.

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

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
T-SB-0012-13 Rev2018-04-02. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. TSB: OBSOLETE NOTICE: September 14, 2016: This bulletin is now obsolete. Please see T-SB-0134-16.
T-SB-0012-13 Rev2018-04-02. Service bulletin. 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-TT-0086-112018-04-02. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ENGINE. TechTip: Condition - 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.
T-TT-0092-11 Rev2018-04-02. Service bulletin. SEATS; ELECTRICAL SYSTEM. Some customers may complain that the Rear Seat Entertainment (RSE) system is inoperative if they have misplaced the parental passcode for the system.
T-TT-0118-11 Rev2018-04-02. 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-0268-132018-04-02. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM. 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 they have restored their phone data/settings recently.
T-TT-0092-11 Rev2018-04-02. Service bulletin. ELECTRICAL SYSTEM. Some customers may complain that the Rear Seat Entertainment (RSE) system is inoperative if the have misplaced the parental passcode for the system.
T-TT-0365-15 Rev2018-04-02. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. TT: A vehicle may arrive to the dealer with a MIL ?ON? condition and P0A80 or P1AC000 stored in the memory. Some cases have been identified with internal modification done to the HV Battery. Modified or altered parts are not covered under warranty.
T-SB-0162-13_Rev2018-02-21. Service bulletin. HYBRID PROPULSION SYSTEM; ELECTRICAL SYSTEM. TSB: REVISION NOTICE January 05, 2018 Rev1: ? Applicability has been updated to include 2012 ? 2017 Camry HV and Prius C, 2015 ? 2017 Prius V, 2006 ? 2017 Highlander HV, 2010 ? 2016 Prius, and 2016 ? 2017 RAV4 HV model year vehicles. ? The Repair Procedure section has been updated. Any previous printed versions of this bulletin should be discarded. Some 2006 ? 2017 Highlander HV, 2010 ? 2016 Prius, 2012 ? 2017 Camry HV, Prius C and Prius V, and 2016 ? 2017 RAV4 HV model year vehicles used under certain severe operating conditions may exhibit an excessive buildup of dust, lint, or other debris in the HV battery cooling fan, which can reduce the efficiency of the HV battery cooling system. Follow the Repair Procedure in this bulletin to address this condition.
T-SB-0101-11 Rev2017-08-14. Service bulletin. ELECTRICAL SYSTEM. TSB: When servicing interior electrical switches and components, please note the precautions in this bulletin to avoid damaging electrical components and switches. Many lubricants, cleaners, and automotive chemicals contain silicone or other compounds that may contaminate electrical contacts, and therefore increase electrical resistance and decrease switch performance. The use of any cleaners or fluids may increase the risk of further damage to electrical components.
T-TT-0268-13 Rev2017-08-14. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM:SOFTWARE. TT: Some customers may encounter Bluetooth® connectivity concerns such as: * Difficulty to pair the phone. * Intermittent Bluetooth® failure to connect to the vehicle when first turning on the vehicle. * Various Bluetooth® Audio functions are no longer functioning with customer's phone such as 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-0101-11 Rev2017-08-14. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM. TSB: When servicing interior electrical switches and components, please note the precautions in this bulletin to avoid damaging electrical components and switches. Many lubricants, cleaners, and automotive chemicals contain silicone or other compounds that may contaminate electrical contacts, and therefore increase electrical resistance and decrease switch performance. The use of any cleaners or fluids may increase the risk of further damage to electrical components.
T-TT-0362-152017-03-28. Service bulletin. ELECTRICAL SYSTEM; ENGINE. 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.
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-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-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-0198-11 REV2017-01-05. Service bulletin. ELECTRICAL SYSTEM; HYBRID PROPULSION SYSTEM. TSB: FOR VEHICLES THAT ARE USED UNDER CERTAIN SEVERE OPERATING CONDITIONS, THE HV BATTERY COOLING FAN MAY EXPERIENCE AN EXCESSIVE BUILDUP OF DUST, LINT, OR OTHER DEBRIS THAT CAN REDUCE THE EFFICIENCY OF THE HV BATTERY COOLING SYSTEM. HV BATTERY COOLING FAN MAINTENANCE AND CLEANING SHOULD BE PERFORMED TO ADDRESS THIS CONDITION.
TMS-NTC-132142016-03-31. Service bulletin. ELECTRICAL SYSTEM. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
TSB-0047-092009-03-18. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. TOYOTA: MULTIPLE WARNING LIGHTS ILLUMINATED, VEHICLE NOT SHIFTING FROM PARK TO DRIVE, AND OTHER ACCESSORIES BECOMING INOPERATIVE AFTER VEHICLE HAS COLD SOAKED IN SUBFREEZING AMBIENT AIR TEMPERATURES. *PE UPDATED 9/23/09. *PE
016052005-08-12. Service bulletin. ELECTRICAL SYSTEM. MAINTENANCE FOR HYBRID VEHICLE BATTERY AND AUXILIARY BATTERY. *TT

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