2012 Toyota Prius Technical Service Bulletins

461 technical service bulletins (TSBs) are on record for the 2012 Toyota Prius. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10131850Mar 7, 2017Body and structure. TSB: REVISION NOTICE March 07, 2017 Rev1: ? Applicability has been updated to include 2017 model year Toyota vehicles. On some vehicles, when Rapgard? is removed the paint may have a stained appearance. These stains appear to be under the clear coat (repainting this area is NOT necessary). The stain patterns are usually under wrinkles in the Rapgard?.
• 10131786Feb 21, 2017Equipment. TT: This bulletin is regarding best practices when handling navigation systems that use Hard Disc Drive or Micro SD Card memory.
• 10131769Feb 2, 2017Electrical system. TT: A vehicle may arrive to the dealer with a MIL ?ON? condition and P0A80 or P1AC000 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.
• 10152222Jan 23, 2017Electrical system. TT: Some Customers may complain about a Hybrid Vehicle Battery cooling system warning message. This warning message may appear when the HV Battery cooling system loses efficiency due to debris on the filter and or some object obstructing the air inlet.
• 10152210Jan 10, 2017Electrical system. TT: Some Customers may complain about a Hybrid Vehicle Battery cooling system warning message. This warning message may appear when the HV Battery cooling system loses efficiency due to debris on the filter and or some object obstructing the air inlet.
• 10152205Jan 6, 2017Electrical system. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes SB No. T-SB-0101-11. Applicability has been updated to include 2016 ? 2017 model year vehicles. Service Bulletin No. T-SB-0101-11 is Obsolete and any printed versions should be discarded. Be sure to review the entire content of this bulletin before proceeding. When servicing interior electrical switches and components, please note the…
• 10132930Nov 29, 2016Electrical system. TSB: OBSOLETE NOTICE: September 14, 2016: This bulletin is now obsolete. Please see T-SB-0134-16.
• 10132913Nov 16, 2016Engine cooling. TSB: NOTE Service Bulletin No. T-SB-0168-16 ?2ZR-FXE Engine Oil Consumption Inspection Procedure? MUST be performed BEFORE continuing with the procedure in this bulletin. Some 2010 ? 2014 model year Prius PHV, Prius V, and Prius vehicles equipped with the 2ZZ-FXE engine may exhibit engine oil consumption. The piston and piston ring assembly have been changed to reduce the potential for oil consumption. Follow the…
• 10132912Nov 16, 2016Engine cooling. TSB: Some 2010 ? 2014 model year Prius, Prius V, and Prius PHV vehicles equipped with 2ZR-FXE engines may exhibit engine oil consumption. The piston and ring assembly has been redesigned to minimize oil consumption. Use the Inspection Procedure in this bulletin to confirm this condition prior to ANY repairs.
• 10132901Nov 10, 2016Equipment. TSB: REVISION NOTICE November 10, 2016 Rev2: ? Applicability has been updated to include 2016 ? 2017 model year Toyota vehicles. ? Parts Information section has been updated. Some 2004 ? 2017 model year Toyota vehicles may exhibit odors naturally occurring from the HVAC system and/or related environmental factors. Although there is no way to eliminate these odors, follow the General Procedure in this bulletin to…
• 10132899Nov 10, 2016Transmission and drivetrain, Electrical system. Warranty Policy Bulletin: Toyota has received some reports indicating the Intelligent Power Module (IPM) located inside the inverter assembly of the hybrid system may fail.
• 10132898Nov 9, 2016Transmission and drivetrain, Electrical system. Warranty Dealer Package: Warranty Enhancement Program to extend the warranty coverage for repairs related failure of the Intelligent Power Module (IPM). The vehicles covered under this Warranty Enhancement must first have Safety Recall E0E (launched in mid-February, 2014) performed (if applicable).
• 10132642Oct 3, 2016Electrical system. TT: Some customers may experience Bluetooth disconnections or loss of SMS text message functionality on the navigation/audio system with Android phones running OS 4.4 or later. Condition tends to occur to customers who have many previous text messages on their phones.
• 10132641Oct 3, 2016Equipment. 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.
• 10111275Sep 30, 2016Electrical system, Equipment. TSB: Revision Notice: Required Tools and Equipment has been updated to include a NEW USB Drive Map Update. Any Previous printed versions of this bulleting should be discarded. Toyota models equipped with the Premium HDD Navigation (AVN/AW-EMV) System will periodically require an update to the Gracenote® Database. Gracenote® includes detailed information for songs (e.g., Genre, Artist, Song Title, Album Name, etc.).
• 10132624Sep 16, 2016Equipment. TSB: Revision Notice: The Parts information section, and the Required Tools & Equipment section has been updated. Toyota models equipped with the Premium HDD Navigation (AVN/AW-EMV) System require a Special Service Tool (SST) USB drive to update the map, points of interest, Gracenote®, and system software. The SST is used with all vehicles to deliver the update, however a unique Activation Number is required for…
• 10150418Sep 14, 2016Electrical system. TSB: Supersession Notice. 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).
• 10149217Sep 14, 2016Engine. TSB: Supersession Notice. 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).
• 10150407Sep 8, 2016Engine. TSB: Revision Notice: Applicability has been updated to include 2015 Prius PHV, 2015-2016 Prius V, and 2015 Prius Vehicles. The Introduction, Parts Information, Required Tools & Equipment, and Repair Procedure sections have been updated. ECU Part Information and Calibration Information Sections have been added. Any previous printed versions of this bulletin should be discarded. Some 2010 ? 2015 model year Prius…
• 10149046Sep 8, 2016Engine. TSB: Revision Notice: Applicability has been updated to include 2015 Prius PHV, 2015-2016 Prius V, and 2015 Prius Vehicles. The Introduction, Parts Information, Required Tools & Equipment, and Repair Procedure sections have been updated. ECU Part Information and Calibration Information Sections have been added. Any previous printed versions of this bulletin should be discarded. Some 2010 ? 2015 model year Prius…
• 10111643Aug 30, 2016Equipment. TT: Some customers may encounter Bluetooth® connectivity concerns such as: *Difficulty to pair the phone. *Intermittent Bluetooth® failure to connect to the vehicle when first turning on the vehicle. *Various Bluetooth® Audio functions are no longer functioning with customer's phone such as ability to change the track using the steering wheel controls.
• 10111627Aug 23, 2016Electrical system, Equipment. TSB: REVISION NOTICE August 23, 2016 Rev1: Applicability has been updated to include 2015 model year Prius and Prius PHV vehicles. Any previous printed versions of this bulletin should be discarded. Toyota models equipped with the Display Audio Navigation System require a Special Service Tool (SST) USB drive to update the map, points of interest, Gracenote®, and system software.
• 10111614Aug 16, 2016Engine, Engine cooling. Warranty Policy Bulletin (POL16-04): Toyota has received reports of a rough idle and/or rattle noise from the transaxle at cold start due to a sticking Exhaust Gas Recirculation (EGR) Valve in some vehicles. If this occurs, the vehicle may illuminate the check engine light and set diagnostic trouble code (DTC) P0401.
• 10111604Aug 11, 2016Engine cooling. TSB: REVISION NOTICE August 11, 2016 Rev1: Applicability has been updated to include 2016 model year Prius V vehicles. Any previous printed versions of this bulletin should be discarded.
• 10084369Aug 11, 2016Engine, Hybrid propulsion system. Tsb: revision notice august 11, 2016 rev1: applicability has been updated to include 2016 model year prius v vehicles. Any previous printed versions of this bulletin should be discarded.
• 10111577Aug 1, 2016Equipment. TSB: Revision Notice: Introduction has been updated. Any previous printed versions of this bulletin should be discarded.
• 10084301Aug 1, 2016Electrical system, Equipment. Tsb: revision notice: introduction has been updated. Any previous printed versions of this bulletin should be discarded.
• 10145776Jul 21, 2016Equipment. Update on Technician Certification Requirements.
• 10134345Jul 7, 2016Engine cooling. TSB: For vehicles that are used under certain severe operating conditions, the HV Battery Cooling Fan may experience an excessive buildup of dust, lint, or other debris that can reduce the efficiency of the HV Battery Cooling System. HV Battery Cooling Fan maintenance and cleaning should be performed to address this condition.
• 10087882Jul 7, 2016Electrical system, Hybrid propulsion system. Tsb: for vehicles that are used under certain severe operating conditions, the hv battery cooling fan may experience an excessive buildup of dust, lint, or other debris that can reduce the efficiency of the hv battery cooling system. Hv battery cooling fan maintenance and cleaning should be performed to address this condition.
• 10086292Jul 7, 2016Electrical system, Hybrid propulsion system. Tsb: for vehicles that are used under certain severe operating conditions, the hv battery cooling fan may experience an excessive buildup of dust, lint, or other debris that can reduce the efficiency of the hv battery cooling system. Hv battery cooling fan maintenance and cleaning should be performed to address this condition.
• 10134090Jun 16, 2016Engine cooling. Warranty Policy Bulletin (POL16-04): In these vehicles, Toyota has received some reports of a rough idle and/or rattle noise from the transaxle at cold start due to a sticking Exhaust Gas Recirculation (EGR) Valve. If this occurs, the vehicle may illuminate the check engine light and set diagnostic trouble code (DTC) P0401.
• 10134089Jun 16, 2016Engine cooling. Dealer Letter: In these vehicles, Toyota has received some reports of a rough idle and/or rattle noise from the transaxle at cold start due to a sticking Exhaust Gas Recirculation (EGR) Valve. If this occurs, the vehicle may illuminate the check engine light and set diagnostic trouble code (DTC) P0401.
• 10134088Jun 16, 2016Engine cooling. Dealer email: In these vehicles, Toyota has received some reports of a rough idle and/or rattle noise from the transaxle at cold start due to a sticking Exhaust Gas Recirculation (EGR) Valve. If this occurs, the vehicle may illuminate the check engine light and set diagnostic trouble code (DTC) P0401.
• 10106447Jun 16, 2016Engine cooling. Warranty policy bulletin (pol16-04): in these vehicles, toyota has received some reports of a rough idle and/or rattle noise from the transaxle at cold start due to a sticking exhaust gas recirculation (egr) valve. If this occurs, the vehicle may illuminate the check engine light and set diagnostic trouble code (dtc) p0401.
• 10106445Jun 16, 2016Engine cooling. Dealer letter: in these vehicles, toyota has received some reports of a rough idle and/or rattle noise from the transaxle at cold start due to a sticking exhaust gas recirculation (egr) valve. If this occurs, the vehicle may illuminate the check engine light and set diagnostic trouble code (dtc) p0401.
• 10106442Jun 16, 2016Engine cooling. Dealer email: in these vehicles, toyota has received some reports of a rough idle and/or rattle noise from the transaxle at cold start due to a sticking exhaust gas recirculation (egr) valve. If this occurs, the vehicle may illuminate the check engine light and set diagnostic trouble code (dtc) p0401.
• 10134087Jun 15, 2016Engine cooling. Region Letter: In these vehicles, Toyota has received some reports of a rough idle and/or rattle noise from the transaxle at cold start due to a sticking Exhaust Gas Recirculation (EGR) Valve. If this occurs, the vehicle may illuminate the check engine light and set diagnostic trouble code (DTC) P0401.
• 10134086Jun 15, 2016Engine cooling. Region email: In these vehicles, Toyota has received some reports of a rough idle and/or rattle noise from the transaxle at cold start due to a sticking Exhaust Gas Recirculation (EGR) Valve. If this occurs, the vehicle may illuminate the check engine light and set diagnostic trouble code (DTC) P0401.
• 10106419Jun 15, 2016Engine cooling. Region letter: in these vehicles, toyota has received some reports of a rough idle and/or rattle noise from the transaxle at cold start due to a sticking exhaust gas recirculation (egr) valve. If this occurs, the vehicle may illuminate the check engine light and set diagnostic trouble code (dtc) p0401.
• 10106417Jun 15, 2016Engine cooling. Region email: in these vehicles, toyota has received some reports of a rough idle and/or rattle noise from the transaxle at cold start due to a sticking exhaust gas recirculation (egr) valve. If this occurs, the vehicle may illuminate the check engine light and set diagnostic trouble code (dtc) p0401.
• 10142467May 31, 2016Electrical system, Equipment. Warranty Policy Bulletin (POL14-05): Toyota has received some reports indicating the Intelligent Power Module (IPM) located inside the inverter assembly of the hybrid system may fail. This condition is indicated by the hybrid system diagnostic trouble codes (DTCs): P0A94, P324E, P3004, and/or P0A1A. If one or more of these DTCs are detected, various warning lamps on the instrument panel will illuminate and the…
• 10140625May 31, 2016Electrical system, Equipment. Warranty Policy Bulletin (POL14-05): Toyota has received some reports indicating the Intelligent Power Module (IPM) located inside the inverter assembly of the hybrid system may fail. This condition is indicated by the hybrid system diagnostic trouble codes (DTCs): P0A94, P324E, P3004, and/or P0A1A. If one or more of these DTCs are detected, various warning lamps on the instrument panel will illuminate and the…
• 10096872May 31, 2016Electrical system, Hybrid propulsion system. Warranty policy bulletin (pol14-05): toyota has received some reports indicating the intelligent power module (ipm) located inside the inverter assembly of the hybrid system may fail. This condition is indicated by the hybrid system diagnostic trouble codes (dtcs): p0a94, p324e, p3004, and/or p0a1a. If one or more of these dtcs are detected, various warning lamps on the instrument panel will illuminate and the…
• 10142466May 19, 2016Equipment, Electrical system. Dealer Letter: In these vehicles, Toyota has received some reports where the Intelligent Power Module (IPM) located inside the inverter assembly of the hybrid system may fail. This condition is indicated by hybrid system diagnostic trouble codes (DTCs): P0A94, P324E, P3004, and/or P0A1A. If one or more of these DTCs are detected, various warning lamps on the instrument panel will also illuminate and the vehicle…
• 10142464May 19, 2016Equipment, Body and structure. TSB: On some vehicles, when Rapgard? is removed, the paint may have a stained appearance. These stains appear to be under the clear coat (repainting this area is not necessary). The stain patterns are usually under wrinkles in the Rapgard?. These wrinkles sometimes trap water and cause the paint to stain from the trapped moisture, especially on horizontal surfaces, such as the hood, roof, and trunk. Stains can be…
• 10140624May 19, 2016Equipment, Electrical system. Dealer Letter: In these vehicles, Toyota has received some reports where the Intelligent Power Module (IPM) located inside the inverter assembly of the hybrid system may fail. This condition is indicated by hybrid system diagnostic trouble codes (DTCs): P0A94, P324E, P3004, and/or P0A1A. If one or more of these DTCs are detected, various warning lamps on the instrument panel will also illuminate and the vehicle…
• 10140622May 19, 2016Body and structure. TSB: On some vehicles, when Rapgard? is removed, the paint may have a stained appearance. These stains appear to be under the clear coat (repainting this area is not necessary). The stain patterns are usually under wrinkles in the Rapgard?. These wrinkles sometimes trap water and cause the paint to stain from the trapped moisture, especially on horizontal surfaces, such as the hood, roof, and trunk. Stains can be…
• 10096871May 19, 2016Electrical system, Hybrid propulsion system. Dealer letter: in these vehicles, toyota has received some reports where the intelligent power module (ipm) located inside the inverter assembly of the hybrid system may fail. This condition is indicated by hybrid system diagnostic trouble codes (dtcs): p0a94, p324e, p3004, and/or p0a1a. If one or more of these dtcs are detected, various warning lamps on the instrument panel will also illuminate and the vehicle…
• 10096862May 19, 2016Equipment. Tsb: on some vehicles, when rapgard™ is removed, the paint may have a stained appearance. These stains appear to be under the clear coat (repainting this area is not necessary). The stain patterns are usually under wrinkles in the rapgard™. These wrinkles sometimes trap water and cause the paint to stain from the trapped moisture, especially on horizontal surfaces, such as the hood, roof, and trunk. Stains can be…

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