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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
T-SB-0043-14 Rev2017-08-14. Service bulletin. EQUIPMENT:ELECTRICAL. TSB: The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once the system is reset, all previously registered keys will be erased. Follow the procedures in this bulletin to reset a vehicle Immobilizer or Smart Key system. NOTE: There are new security provisions required to obtain a Reset Pass-Code. It is critical that the instructions for this new process are reviewed BEFORE attempting to get a Pass-Code in the new system.
T-TT-0303-142017-08-01. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; HYBRID PROPULSION SYSTEM. Tech Tip: When a DTC is detected by the HV Battery ECU, the HV Control ECU will automatically store a P3000, Information Code 123 ?HV Battery Control System Malfunction? DTC. The purpose of the P3000/123 is to capture the state of the Hybrid Control System when the HV Battery ECU DTC sets. It does not indicate a malfunction of the HV Control ECU.
T-TT-0307-142017-08-01. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). Tech Tip: Customer complains of carious Bluetooth connectivity concerns after upgrading to iOS 8.0 and later. Conditions typically experienced include inability to pair the iPhone to the system, poor sound quality during phone calls placed through the audio/navigation system, and the inability to place a hands free phone call using the audio/navigation system.
T-SB-0006-11 Rev2017-08-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES; POWER TRAIN. TSB: World Standard (WS) Automatic Transmission Fluid (ATF) was introduced to reduce maintenance costs and increase the mileage between scheduled maintenance checks. Here are some important tips when working with ATF-WS in Toyota vehicles requiring it's use.
T-TT-0268-13 REV2017-04-07. Service bulletin. EQUIPMENT. "TT: SOME CUSTOMERS MAY ENCOUNTER BLUETOOTH CONNECTIVITY CONCERNS SUCH AS: • DIFFICULTY PAIRING THE PHONE. • INTERMITTENT BLUETOOTH FAILURE TO CONNECT WHEN FIRST TURNING ON THE VEHICLE. • VARIOUS BLUETOOTH AUDIO FUNCTIONS ARE NO LONGER FUNCTIONING WITH THE CUSTOMER’S PHONE, SUCH AS THE ABILITY TO CHANGE THE TRACK USING THE STEERING WHEEL CONTROLS. THESE CONCERNS CAN BE CAUSED BY CHANGES MADE ON THE CUSTOMER’S PHONE. MAKE SURE TO INQUIRE WITH THE CUSTOMER IF THE CONNECTIVITY CONCERNS OCCURRED AFTER RECEIVING AN OPERATING SYSTEM UPDATE ON THEIR PHONE OR IF THEY HAVE RESTORED THEIR PHONE DATA/SETTINGS RECENTLY."
T-TT-0365-152017-03-28. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. TT: A VEHICLE MAY ARRIVE TO THE DEALER WITH A MIL “ON” CONDITION AND P0A80 STORED IN THE MEMORY. SOME CASES HAVE BEEN IDENTIFIED WITH INTERNAL MODIFICATION DONE TO THE HV BATTERY. MODIFIED OR ALTERED PARTS ARE NOT COVERED UNDER WARRANTY.
T-TT-0362-152017-03-28. Service bulletin. ELECTRICAL SYSTEM; ENGINE. TT: THE VEHICLE MAY BE DIFFICULT TO START OR HAVE AN ABNORMALLY LOW OR ROUGH IDLE AFTER THE BATTERY HAS BEEN DISCONNECTED OR POWER TO THE ENGINE ECM HAS BEEN INTERRUPTED.
T-TT-0381-162017-03-21. Service bulletin. EQUIPMENT. TECH TIP: SOME CUSTOMERS MAY EXPERIENCE DIFFICULTY PROGRAMMING HOMELINK.
T-SB-0012-13 REV2017-03-21. Service bulletin. ENGINE; ELECTRICAL SYSTEM. "TSB: 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. THIS BULLETIN DETAILS THE TECHSTREAM ECU FLASH REPROGRAMMING PROCESS AND OUTLINES USE OF THE TECHNICAL INFORMATION SYSTEM (TIS) AND THE CALIBRATION UPDATE WIZARD (CUW). FLASH CALIBRATION UPDATES CAN ONLY BE APPLIED TO THE VEHICLE/ECU COMBINATION FOR WHICH THEY ARE INTENDED. ECUS HAVE INTERNAL SECURITY THAT WILL NOT ALLOW THEM TO BE PROGRAMMED WITH ANOTHER ECU’S INFORMATION."
T-SB-0119-152017-03-02. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. TSB: THIS BULLETIN INCLUDES BASIC PROCEDURES FOR PERFORMING A RESCUE CHARGE ON NI-MH HIGH VOLTAGE (HV) BATTERIES. THIS BULLETIN SHOULD BE USED IN CONJUNCTION WITH THE REPAIR MANUAL WHILE PERFORMING RESCUE CHARGE. THE GRX-5100 SHOULD BE USED WHEREVER THE REPAIR MANUAL REFERENCES THE TOYOTA HYBRID SYSTEM (THS) CHARGER.
T-TT-0395-162017-02-23. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. TT: HV BATTERIES HAVE LIQUID FILLED CELL MODULES, TO PREVENT LEAKAGE FROM CELLS, IT IS VERY IMPORTANT TO CONFIRM THE PROPER ORIENTATION MARK OF THE DRC.
PG002-042016-06-22. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
TC13-0192016-04-12. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
T-TT-0051-102016-04-12. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
T-SB-0187-122016-04-12. Service bulletin. TIRES. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
T-SB-0186-132016-04-12. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
T-TT-0303-142016-03-31. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
PG002-042016-03-31. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
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
TTT-0213-132013-04-17. Service bulletin. AIR BAGS; SEAT BELTS:FRONT:WARNING LIGHT/DEVICES. TOYOTA: IN A COLLISION, TO HELP REDUCE INJURIES, WITH SEAT BELT PRE=TENSIONERS AND SUPPLEMENTAL RESTRAINT SYSTEMS (SRS), ITS POSSIBLE THAT THE DEVICES MAY OR MAY NOT PERFORM AS EXPECTED WITH UNINTENDED DEPLOYMENT. MODEL YEARS 1990-2013. MODELS VARIOUS MODELS. *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-0174-122012-12-13. Service bulletin. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE; SERVICE BRAKES, AIR:ANTILOCK; SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE; SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT. TOYOTA: INSTRUMENT PANEL ILLUMINATES WITH MALFUNCTION OF ABS/VSC, MIL ON AND BRAKE WARNING LIGHTS, RESULTING IN OVERLY SENSITIVE MONITORING LOGIC WITHOUT ANY ABS/VSC SYSTEM ISSUE. MODELS 2007-2011 CAMRY; 2004-2009 PRIUS. *PE UPDATED 8/26/14. *PE
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

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