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Service bulletins for the 2011 Toyota Sequoia

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.

257 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
ZG6_ Region Lett2018-04-02. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. Region Letter: Toyota has received a number of reports regarding Air Injection Pumps and Air Switching Valves in certain 2011 Model Year Tundra and Sequoia Vehicles. In these reports, customers have indicated concerns regarding the illumination of the check engine light (Malfunction Indicator Light) due to moisture/water in the Air Injection Pumps and/or Air Switching Valves.
ZG6_ Region Emai2018-04-02. Service bulletin. ENGINE AND ENGINE COOLING. Region Email: Toyota has received a number of reports regarding Air Injection Pumps and Air Switching Valves in certain 2011 Model Year Tundra and Sequoia Vehicles. In these reports, customers have indicated concerns regarding the illumination of the check engine light (Malfunction Indicator Light) due to moisture/water in the Air Injection Pumps and/or Air Switching Valves.
T-TT-0051-102018-04-02. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM; EQUIPMENT:APPLIANCE:AIR CONDITIONER. If a customer states there is an unpleasant odor in the vehicle from the HVAC system, there are various factors that may be involved.
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-SB-0152-132018-04-02. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. Some vehicles may exhibit a condition where there is a lack of cooling from the A/C system. An A/C Line Retainer (Piping Clamp) may have become unlatched and caused a refrigerant leak. Follow the procedure in this bulletin to address this condition.
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.
ZG6_Toyota POL172017-08-15. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT ADAPTIVE/MOBILITY. Warranty Policy Bulletin: Toyota has received reports of customer concerns regarding the illumination of the check engine light due to moisture/water in the Air Injection Pumps and/or Air Switching Valves.
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-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."
TTT-1177-112012-01-25. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. TOYOTA: SOME VEHICLES MAY EXHIBIT MIL ON CONDITION (CRANKSHAFT POSITION CORRELATION BANK 1/BANK 2 SENSOR B) AFTER ENGINE AREA ROOM REPAIRS. THESE ARE 3UR AND 1UR EQUIPPED VEHICLES. *PE

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