2003 Toyota Sienna TSBs
17 Sienna Technical Service Bulletins
Technical Service Bulletins, or TSBs for short, are notifications made directly by Toyota to help automotive technicians diagnose and repair commonly reported Sienna problems. Interested in how this information is collected? Read more about TSBs.
Recent 2003 Sienna TSBs
STEERING
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Description: STEERING ANGLE SENSOR CALIBRATION. *TT *JB
SERVICE BRAKES, HYDRAULIC
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Description: REAR BRAKE DRUM SQUEAL NOISE. *TT
ENGINE AND ENGINE COOLING:ENGINE
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Description: 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 DE
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Description: MALFUNCTION INDICATOR LAMP ON DIAGNOSTIC TROUBLE CODE P0420. *TT
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Description: MALFUNCTION INDICATOR LAMP ON WITH DIAGNOSTIC TROUBLE CODE P0446 (EVAPORATIVE EMISSION CONTROL SYSTEM VENT CONTROL MALFUNCTION) (ONLY). *TT
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Description: ENGINE BANK 1 AND BANK 2 A/F AND 02 IDENTIFICATION. VARIOUS TOYOTA MODELS. *TT
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Description: MALFUNCTION INDICATOR LAMP (MIL) ON CONDITION WITH DIAGNOSTIC TROUBLE CODE (DTC) P0441, P0442 AND/OR P0446. *TT
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Description: MALFUNCTION INDICATOR LAMP ON WITH DIAGNOSTIC TROUBLE CODE P0440, P0441 AND/OR P0446 STORED. *TT
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Description: MALFUNCTION INDICATOR LAMP ON WITH DIAGNOSTIC TROUBLE CODE P0440, P0441 AND/OR P0446 STORED. *TT
POWER TRAIN
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Description: A541E TRANSMISSION SOLENOID IDENTIFICATION. *TT
ELECTRICAL SYSTEM
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Description: CHARGING IMPROVEMENT AT IDLE. REVISED. *TT
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Description: CHARGING IMPROVEMENT AT IDLE. *TT
STRUCTURE:BODY
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Description: SUNVISOR LOOSE OR HAS DIFFICULTY HOLDING POSITION. *TT
STRUCTURE:BODY:DOOR
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Description: POWER SLIDING DOOR CABLE ADJUSTMENT PROCEDURE. *KB
TIRES:TEMPORARY/EMERGENCY SPARE TIRE
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Description: TOYOTA SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. IN COLD WEATHER WHERE SALT IS USED, THE SALT CAN CORRODE THE SPARE TIRE CARRIER CABLE. 1998-2020 SIENNA. *RM
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Description: SPARE TIRE CARRIER OPERATION. VARIOUS MODLELS INCLUDING THE 2004 LANDCRUISER AND 4 RUNNER. *TT
EQUIPMENT:ELECTRICAL:AIR CONDITIONER
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Description: COUNTERMEASURES TO THE AIR CONDITIONER (A/C) MAGNETIC CLUTCH RELAY FOR A/C LIGHT FLASHING (INOPERATIVE A/C) ISSUES ON SOME VEHICLES EQUIPPED WITH A MAGNETIC CLUTCH COMPRESSOR. *TT