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Service bulletins for the 2004 Toyota PRIUS

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.

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

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Bulletins, newest first
SB-1201202012-02-02. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE. TOYOTA: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. INFORMATION REGARDING WATER PUMP REPLACEMENT, ON SOME ELECTRIC HYBRID VEHICLES, WHICH CAUSES SLOWNESS OF THE PUMP ACTUATION. *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-0042-112011-07-07. Service bulletin. ELECTRICAL SYSTEM:WIRING; AIR BAGS. TOYOTA: 2004-2009 PRIUS. THE AIRBAG LIGHT IS ON WITH TWO POSSIBLE TROUBLE CODES STORED. THERE IS A PROBLEM WITH A WIRE HARNESS. *RM
SB-0306-08 REV 22011-05-26. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. TOYOTA: MALFUNCTION LIGHT IS ON WITH TWO INTERNAL TROUBLE CODES. IT IS A PROBLEM WITH THE TRANSAXLE ASSEMBLY. 2004-2008 PRIUS. *RM
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
TSB-0163-082010-11-01. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM; FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY. TOYOTA: FUEL TANK AND FUEL GAUGE DIAGNOSTIC TIPS. METER/GAUGE/DISPLAY. THE DESIGN AND OPERATIONAL CHARACTERISTICS OF THE BLADDER TANK AND FUEL GAUGE SYSTEM. DIAGNOSTIC TIPS FOR THE FOLLOWING CUSTOMER CONCERNS ARE ALSO INCLUDED. *PE
SB-0397-09 REV12010-06-30. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. TOYOTA: VEHICLE INTERIOR: INTERIOR PANELS/TRIM TO IMPROVE SERVICEABILITY OF THE FLOOR CARPET GROMMET (FLOOR CLAMP RETAINER), A NEW SERVICE PART HAS BEEN DEVELOPED WHICH ALLOWS THE FLOOR CARPET GROMMET TO BE REPLACED SEPARATELY FROM THE CARPET ASSEMBLY. MODELS INCLUDE AVALON, CAMRY, CAMRY HV, PRIUS, TACOMA AND TUNDRA. *PE.
TSB-0166-092009-09-23. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. TOYOTA: SOME VEHICLES MAY EXHIBIT A M.I.L. ON CONDITION WITH ONE OF MORE OF THE FOLLOWING DIAGNOSTIC TROUBLE CODES (DTCS): P0AC0; P0A1F; P0A7F; P0AFA (HYBRID BATTERY PACK/SYSTEM). IMPROVEMENTS HAVE BEEN MADE TO THE HV ECU AND BATTERY ECU HARDWARE TO CORRECT THESE CONDITIONS. *PE
TSB-0088-082008-09-12. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; ENGINE AND ENGINE COOLING:ENGINE. TOYOTA: ENGINE CONTROL: SOME CUSTOMERS MAY REPORT A M.I.L. ON CONDITION THAT OCCURS AFTER OPERATING THE VEHICLE FOR EXTENDED TIMES IN READY ON MODE WITH THE TRANSAXLE IN THE PARK POSITION. *PE
T-SB-0030-082008-06-05. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS:HIGH/LOW BEAM DIMMER SWITCH. HID HEADLIGHT SYSTEM - DIAGNOSTIC TIPS. *NJ UPDATED 6/17/08. *NJ
002072007-07-06. Service bulletin. UNKNOWN OR OTHER. TECHSTREAM ECU FLASH REPROGRAMMING PROCEDURE. *KB
045062007-06-15. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. MALFUNCTION INDICATOR LAMP ON WITH DTC P0AA6 OR P3009, INFORMATION CODES 526 AND 613. *KB
058062006-11-16. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. MASTER, HYBRID, AND M.I.L. "ON" DTC P0A94, INFORMATION CODE 588. *KB
004062006-05-19. Service bulletin. ELECTRICAL SYSTEM. AUTOMATIC HEADLIGHT LEVELING SYSTEM WARNING LIGHT ON OR FLASHING. *TT
060032006-04-21. Service bulletin. AIR BAGS. SPECIAL SERVICE CAMPAIGN (SSC) - 60B (SAFETY RECALL) (SUPPLEMENTAL RESTRAINT SYSTEM (SRS) AIRBAG REPLACEMENT). DUE TO IMPROPER ASSEMBLY OF THE AIRBAG INFLATOR, WHICH IS INCORPORATED INTO THE SRS AIRBAG ASSEMBLY (SIDE AIRBAG, CURTAIN SIDE AIRBAG OR DRIVER KNEE AIRBAG), SOME INFLATORS WERE PRODUCED WITH AN INSUFFICIENT AMOUNT OF THE HEATING AGENTS NECESSARY FOR PROPER AIRBAG DEPLOYMENT. *TT
063052006-01-19. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. M.I.L. ON DTC P0300, P0301, P0302, P0303, OR P0304. *TT
017052006-01-19. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. MALFUNCTION INDICATOR LAMP (MIL) ON WITH DIAGNOSTIC TROUBLE CODE (DTC) P0AA6 OR P3009, INFORMATION CODES 526 & 614. *TT
05222005-11-19. Service bulletin. ELECTRICAL SYSTEM. SPECIAL SERVICE CAMPAIGN (SSC) - 50P TO REPROGRAM THE ECM SYSTEM WHICH MAY CAUSE SOME OR ALL OF THE WARNING LIGHTS TO ILLUMINATE: MASTER, HYBRID SYSTEM, ENGINE, VEHICLE STABILITY CONTROL, AND BRAKE. *TT
5080B2005-09-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE MECHANICAL - ENGINE (1NZ-FXE). 00400-RM107-5U2. 00400-RM113-0U2. 00400-RM110-5U2. *TT
5090B2005-09-02. Service bulletin. FUEL SYSTEM, OTHER. FUEL - FUEL SYSTEM (1NZ-FXE). REPAIR MANUAL CORRECTION. 00400-RM113-0U2. 00400-RM107-5U2. *TT
45862005-09-02. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. DIAGNOSTICS - HYBRID CONTROL SYSTEM. REPAIR MANUAL CORRECTION. 2005 PRIUS. 00400-RM113-0U1. 2004 PRIUS 00400-RM107-5U1. *TT
4416B2005-08-19. Service bulletin. ELECTRICAL SYSTEM. COMBINATION METER REPAIR MANUAL CORRECTION FOR THE 2004 TOYOTA PRIUS. 00400-RM107-5U2. *TT
050042005-08-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE OIL SPECIFICATIONS. *TT
00400107512005-08-17. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. REPAIR MANUAL CORRECTION. *SC
024052005-08-17. Service bulletin. ENGINE AND ENGINE COOLING. MIL ON DTC P1121. *SC

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