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Service bulletins for the 2004 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.

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

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Bulletins, newest first
029042004-10-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. MALFUNCTION INDICATOR LAMP ON WITH DIAGNOSTIC TROUBLE CODE P0171 AND/OR P0174 ENGINE RUNNING LEAN. *TT
009042004-09-29. Service bulletin. EQUIPMENT:ELECTRICAL. POWER WINDOW / ROOF INITIALIZATION PROCEDURES. *TT
006042004-07-07. Service bulletin. ELECTRICAL SYSTEM. PERSONAL LIGHT OPERATION. *TT
002042004-05-26. Service bulletin. POWER TRAIN. THE PROPER IDENTIFICATION OF THE 7 SOLENOIDS USED IN THE U151E/U151F TRANSMISSIONS. *TT
005042004-05-26. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. MALFUNCTION INDICATOR LAMP (MIL) ON CONDITION WITH ENGINE MISFIRE DIAGNOSTIC TROUBLE CODE (DTC) P0300, P0301, P0302, P0303, P0304, P0305, OR P0306. *TT
004042004-05-26. Service bulletin. STRUCTURE:BODY:DOOR. SLIDING DOOR RATTLE. *TT
004042004-05-26. Service bulletin. EQUIPMENT:ELECTRICAL. POWER SLIDING DOOR INOPERATIVE. *TT
040052004-05-26. Service bulletin. UNKNOWN OR OTHER. OWNER RENOTIFICATION OF NON-COMPLETED SPECIAL SERVICE CAMPAIGNS AND LIMITED SERVICE CAMPAIGNS. VARIOUS MODLES INCLUDING THE TOYOTA SCION XB MY2004. *TT
002042004-05-05. Service bulletin. SERVICE BRAKES, HYDRAULIC. REAR DISC BRAKE GROAN NOISE. *TT A VIN HAS BEEN ADDED TO THE PRODUCTION CHANGE INFORMATION TABLE. *TT
003042004-05-05. Service bulletin. STRUCTURE:BODY. BACK DOOR STAY LEAK AND COLD WEATHER SHUDDER IMPROVEMENT. *TT
004042004-05-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. MALFUNCTION INDICATOR LAMP (MIL) ON DIAGNOSTIC TROUBLE CODE (DTC) P0010 OR P0020. *TT
001042004-05-05. Service bulletin. ELECTRICAL SYSTEM. MALFUNCTION INDICATOR LAMP (MIL) ON DIAGNOSTIC TROUBLE CODE (DTC) P0748, P0798, P0985 OR P0986. *TT
006042004-05-05. Service bulletin. STRUCTURE:BODY. WINDOW SHADE CLIP FALLING OFF. *TT
001042004-04-22. Service bulletin. UNKNOWN OR OTHER. ZERO POINT CALIBRATION. *MR *TT
003042004-04-22. Service bulletin. STEERING. STEERING INTERMEDIATE SHAFT NOISE. *MR THIS BULLETIN REPLACED PREVIOUS BULLETIN 003-04, DATED FEB 6 2004. *TT
020032004-03-15. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. MALFUNCTION INDICATOR LAMP (MIL) ON CONDITION WITH DIAGNOSTIC TROUBLE CODE (DTC) P0441, P0442 AND/OR P0446. *TT
002032004-03-15. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. OXYGEN SENSOR (O2S) MONITOR THRESHOLD VALUES FOR ALL TOYOTA MODELS FROM 1996 TO 2003 AND VARIOUS 2004 MODELS INCLUDING COROLLA, ECHO AND SCION XA & XB MODELS. *TT
00703R2004-03-10. Service bulletin. POWER TRAIN. ENGINE CONTROL MODULE (ECM) CALIBRATION - SHIFTING ENHANCEMENT. REVISED. *TT
TC002032004-03-08. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. WHENEVER AN AUTOMATIC TRANSMISSION IS REPLACED, OVERHAULED OR INDIVIDUAL COMPONENTS ARE REPLACED, USE THIS PROCEDURE TO CLEAR ENGINE CONTROL MODULE (ECM) LEARNED VALUES TO PREVENT SUBSEQUENT DRIVEABILITY COMPLAINTS. REVISED NOTICE. TUNDRA VEHICLES ADDED. *TT
TC002032004-03-08. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. WHENEVER AN AUTOMATIC TRANSMISSION IS REPLACED, OVERHAULED OR INDIVIDUAL COMPONENTS ARE REPLACED, USE THIS PROCEDURE TO CLEAR ENGINE CONTROL MODULE (ECM) LEARNED VALUES TO PREVENT SUBSEQUENT DRIVEABILITY COMPLAINTS. REVISED NOTICE. T-100 MODELS REMOVED. *TT
007032004-02-17. Service bulletin. POWER TRAIN. ENGINE CONTROL MODULE (ECM) CALIBRATION - SHIFTING ENHANCEMENT. *TT UPDATE. *TT
004032004-02-17. Service bulletin. SERVICE BRAKES, HYDRAULIC. DIAGNOSTIC TROUBLE CODE (DTC) C1234 - YAW RATE SENSOR. *TT
03012004-01-02. Service bulletin. ELECTRICAL SYSTEM:WIRING. THERE MAY BE A RED POWER WIRE FOR POWER LUMBAR SUPPORT THAT IS NOT TIED SECURELY AWAY FROM PARKING BRAKE MECHANISM. *TT
NV009032003-11-07. Service bulletin. STRUCTURE:BODY:DOOR. FRONT DOOR WIND NOISE. REVISED. *TT
003022003-10-24. Service bulletin. EQUIPMENT:ELECTRICAL. DIAGNOSTIC TESTER IMMOBILIZER FUNCTIONS - REVISED. *TT

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