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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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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
TSB-0153-132014-03-06. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. TOYOTA: DUE TO DUST OR DEBRIS BUILD UP IN HV BATTERY COOLING FAN, THE MALFUNCTION INDICATOR LAMP (MIL) IS ON AND PROCEDURE REPAIR IS AVAILABLE FOR THIS CONDITION. MODEL 2004-2009 PRIUS. *PE
TSB-0098-132014-03-01. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. TOYOTA: THERE MAY BE AN EXCESSIVE BUILDUP OF DUST, LINT, OR OTHER DEBRIS, THAT CAN REDUCE THE HV BATTERY COOLING FAN EFFICIENCY AND NEED TO BE MAINTAIN AND CLEANED. MODEL 2004-2009 PRIUS. *PE
TC-12-0262013-04-11. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. TOYOTA: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. ON CERTAIN VEHICLES, WHEN VEHICLE'S IGNITION IS TURNED ON, COMBINATION METER DISPLAY FAILS TO ILLUMINATES DURING COLD WEATHER START UP. MODELS 2004-2009 PRIUS. *PE
TSB-0172-092013-02-06. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:WIRING; ELECTRICAL SYSTEM. TOYOTA: AVAILABLE TO CORRECT THE INTERMITTENT CONDITION OF THE COMBINATION METER, THERE IS AN UPDATED ECU METER COMBINATION, TO PREVENT THE LOST/FAILURE OF ILLUMINATION IN COLD WEATHER. REV 1 8/3/11 AND REV 2 10/10/12. MODEL 2004-2009 PRIUS. *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-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
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
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
4416B2005-08-19. Service bulletin. ELECTRICAL SYSTEM. COMBINATION METER REPAIR MANUAL CORRECTION FOR THE 2004 TOYOTA PRIUS. 00400-RM107-5U2. *TT
51082005-07-30. Service bulletin. ELECTRICAL SYSTEM. DIAGNOSTICS FOR THE HYBRID CONTROL SYSTEM. REPAIR MANUAL CORRECTION. 00400-RM107-5U1. *TT
4496B2005-07-29. Service bulletin. ELECTRICAL SYSTEM. REPAIR MANUAL CORRECTION FOR THE ENGINE CONTROL SYSTEM - SFI SYSTEM (1NZ-FXE). 00400-RM107-5U2. *TT
44952005-07-26. Service bulletin. ELECTRICAL SYSTEM. REPAIR INSTRUCTIONS AND DIAGNOSTICS FOR THE SFI SYSTEM. REPAIR MANUAL CORRECTION. 00400-RM107-5U1. *TT
010042004-09-29. Service bulletin. ELECTRICAL SYSTEM. FUEL GAUGE INACCURACY. *TT *TT
040092004-07-08. Service bulletin. ELECTRICAL SYSTEM. SPECIAL SERVICE CAMPAIGN 40D TO REPROGRAM THE ELECTRONIC CONTROL UNITS (ECU). *TT
32962004-05-04. Service bulletin. ELECTRICAL SYSTEM:WIRING. ELECTRICAL WIRING DIAGRAM REPAIR MANUAL CORRECTION. *TT
040022004-03-16. Service bulletin. ELECTRICAL SYSTEM. SPECIAL SERVICE CAMPAIGN ELECTRONIC CONTROL UNIT. *JB
001012003-12-10. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. MAINTENANCE FOR HV AND AUXILIARY BATTERIES AT PORT AND DEALERS. REVISED. *TT

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