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Service bulletins for the 2011 Toyota Sienna

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.

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

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Bulletins, newest first
T-SB-0041-132016-04-12. Service bulletin. ENGINE. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
T-SB-0147-142016-03-31. Service bulletin. SEATS. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
T-SB-0152-142016-03-31. Service bulletin. SEATS. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
T-SB-0192-112016-03-31. Service bulletin. SEATS. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
T-SB-0180-122016-03-31. Service bulletin. SEATS. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
T-SB-0045-142016-03-31. Service bulletin. SERVICE BRAKES. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
TC15-0142015-08-31. Service bulletin. SEATS. THIS TSB CONTAINS A OWNER LETTER. SEE DOCUMENT SEARCH BUTTON: TOYOTA 2011 SIENNA : BULLETIN INFORMATION INVOLVING INSTRUCTIONS FOR INSTALLMENT OF THE 3RD ROW BACK SEAT. *LJ
TC-14-0342014-12-16. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. TOYOTA: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. AN ENHANCEMENT WARRANTY PROGRAM, ON CERTAIN VEHICLES, HAS BEEN ANNOUNCED TO PROVIDE WARRANTY COVERAGE FOR REPAIRS RELATING TO LEAKAGE OR SEEPAGE ENGINE OIL COOLER PIPE. MODEL 2007-11 SIENNA, 2008-11 HIGHLANDER, 2009-11 VENZA, 2011 HIGHLANDER HYBRID. *PE
PSD-TC-14-0142014-08-27. Service bulletin. EQUIPMENT. TOYOTA: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. A PROGRAM ERROR, IN DRIVING SUPPORT ECU, HAS RADAR SENSOR PRE-COLLISION SYSTEM (PCS) INACTIVE 10 SECONDS OR MORE, WHILE STOPPED, WILL FAIL TO REACTIVATE PRE-COLLISION BRAKING. MODEL 2011-2014 SIENNA. *PE
TSB-0041-132014-03-05. Service bulletin. ENGINE. TOYOTA: ON CERTAIN VEHICLES, A KNOCK OR RATTLE NOISE, COMING FROM ENGINE COMPARTMENT, IS HEARD DURING A COLD SOAK STARTUP, AND THE CONDITION LASTS APPROXIMATELY ONE SECOND. MODEL YEARS 2009-2012 CAMRY, HIGHLANDER, SIENNA, VENZA, RAV4. *PE
TSB-004-13-A2013-12-07. Service bulletin. ENGINE. TOYOTA: THERE IS A KNOCKING OR RATTLING NOISE COMING FROM ENGINE COMPARTMENT, FOR A SHORT PERIOD OF TIME, AFTER A COLD SOAK STARTUP. MODEL 2010-2012 CAMRY, 2009-2013 HIGHLANDER, VENZA, 2009-2012 RAV4, 2011-2013 SIENNA. *PE
TSB-0172-122012-12-11. Service bulletin. AIR BAGS. TOYOTA: AN INTERMITTENT EXHIBITION OF SRS LAMP ON WITH DIAGNOSTIC TROUBLE CODE (DTC) B1821 AND/OR B1826 CONDITION. IMPROVEMENT TO TERMINAL CRIMPING OF SIDE AIR BAG TO ADDRESS SITUATION. MODEL 2011-2012 SIENNA.
TSB-0087-122012-08-21. Service bulletin. VEHICLE SPEED CONTROL:ACCELERATOR PEDAL. TOYOTA: ACCELERATOR PEDAL SENSOR ASSEMBLY INFORMATION REGARDING THE INSPECTION, REMOVAL, AND INSTALLATION, IF LUBRICATION OR OIL, IS APPLIED. *PE
TSB-0095-122012-08-04. Service bulletin. SEATS:MID/REAR ASSEMBLY. TOYOTA: IN SOME VEHICLES, WHEN MOVING SEAT FROM STOWED POSITION TO UPRIGHT, 3RD ROW MAUL SEATBACK FAILS TO LOCK IN PLACE. *PE
T-SB-0055-122012-05-16. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS; ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR. TOYOTA: CHARGING SYSTEM INOPERATIVE. SOME ENGINES MAY EXHIBIT INSUFFICIENT CHARGING PERFORMANCE FROM THE ALTERNATOR. AN UPDATED PULLEY ASSEMBLY IS AVAILABLE TO ADDRESS THIS CONDITION. *JS
TSB-0182-112012-02-01. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. TOYOTA: SOME VEHICLES MAY EXHIBIT AN INTERMITTENT CONDITION WHEN STARTING VEHICLE WHERE BY THE LEFT OR RIGHT SIDE HEADLAMP WILL NOT ILLUMINATE. *PE
TSB-020-112012-01-24. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE. TOYOTA: ON SOME VEHICLES, THE ENGINE OIL COOLER PIPES MAY EXHIBIT AN OIL SEEPAGE. INFORMATION HAS BEEN PROVIDED REGARDING THIS ISSUE. *PE
TSB-0122-112011-12-17. Service bulletin. AIR BAGS; SEATS. TOYOTA: INFORMATION PROVIDED FOR REPLACING THE SEAT COVERS FOR VEHICLES EQUIPPED WITH SIDE AIRBAGS. *PE
TSB-0044-112011-07-07. Service bulletin. STRUCTURE:BODY:DOOR. TOYOTA: THE SIDE POWER SLIDING DOOR OPENS PARTIALLY OR MAKES A POP NOISE WHEN OPENING WITH THE OUTSIDE HANDLE. 2011 SIENNA. *RM
TSB-0086-10 REV12011-04-25. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. TOYOTA: FLOOR MAT INSTALLATION DURING PDS. VEHICLES EQUIPPED WITH DRIVER'S SIDE FLOOR MAT RETAINING CLIPS TO SECURE THE FLOOR MAT IN CORRECT POSITION. *PE
TSB-0064-102010-11-01. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. TOYOTA: TECHSTREAM ECU FLASH REPROGRAMMING PROCEDURE. 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. MODEL YEARS FROM 2001-2011. *PE
SB-0130-102010-09-17. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). TOYOTA: ENGINE/HYBRID SYSTEM. ENGINE CONTROL. SOME VEHICLES MAY EXHIBIT A MIL ON CONDITION WITH DIAGNOSTIC TROUBLE CODE (DTC) P0456 STORED IN THE ENGINE CONTROL MODULE OR ECM (SAE TERM:POWERTRAIN CONTROL MODULE/PCM). *PE

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