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.

• 10109491Sep 30, 2014Electrical system, Equipment. TSB: 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 each vehicle. Activation Numbers are provided in an Activation Card Number (ACN) pamphlet available through the…
• 10109490Sep 30, 2014Electrical system, Equipment. TSB: 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.) The Gracenote update will be included on the "USB Drive Navigation Map Update" SST. A Gracenote update must be performed before a Navigation Map Update. A Navigation Map…
• 10109399Sep 30, 2014Equipment. TSB: September 30, 2014: This bulletin is now obsolete. Please see T-SB-0133-14.
• 10057072Sep 15, 2014Electrical system. Toyota prius: customers may experience a change in the ev distance display or may have concerns regarding the hv battery performance.
• 10056127Sep 15, 2014Seats. Toyota: see document search button for owner letter. The non toyota seat heater system, installed as gst, on certain vehicles, fail due to wiring connectors and seat heater can turn off and not work. Model 2012-2014 prius v.
• 10109604Aug 22, 2014Transmission and drivetrain, Electrical system. Electronic Communication: In our continuing efforts to ensure the best in customer satisfaction, Toyota is announcing a Warranty Enhancement Program to extend the warranty coverage for repairs related to 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).
• 10109587Aug 19, 2014Equipment. Tech Tip: Since MY 2011, several different update or upgrade USB SSTs have been issued for Toyota audio and navigation systems.
• 10109602Aug 14, 2014Electrical system, Hybrid propulsion system. Dealer Letter: In our continuing efforts to ensure the best in customer satisfaction, Toyota is announcing a 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).
• 10109551Aug 14, 2014Hybrid propulsion system. TSB: The purpose of this general information Service Bulletin is to inform the market that sub-component diagnosis and replacement is now available for the Hybrid Inverter with Converter assembly equipped on 2010 - 2014 model year Prius vehicles.
• 10062390Aug 14, 2014Equipment. Summary to be provided on a future date.
• 10061315Aug 14, 2014Equipment. Summary to be provided on a future date.
• 10109596Aug 13, 2014Electrical system, Hybrid propulsion system. Region Letter: In our continuing efforts to ensure the best in customer satisfaction, Toyota is announcing a Warranty Enhancement Program to extend the warranty coverage for repairs related to 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).
• 10057090Aug 13, 2014Equipment. Toyota: prius hybrid 2010-2014 warranty has been extended for intelligent power module(ipm) for the following vehicles. See document search button for owners letter.
• 10132742Jul 29, 2014Electrical system, Visibility (wipers, defrost, mirrors). Tech Tip: Tips for writing a DPR (Dealer Product Report) on manufacturing issues for windows and windshields.
• 10132715Jul 25, 2014Equipment. 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.
• 10132741Jul 8, 2014Engine. Tech Tip: Starting with the 2010 Model Year, Toyota began a gradual transition to the use of synthetic 0w20 viscosity engine oil. There are multiple benefits of this oil including: Reduced friction and wear on engine surfaces, Improved fuel economy, Reduction in waste oil stream (in vehicles approved for 10,000 mile oil change intervals), Reduced maintenance cost (in vehicles approved for 10,000 mile oil change…
• 10132708Jul 7, 2014Equipment. 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.
• 10132740Jul 1, 2014Equipment. Tech Tip: When replacing the Hard Disk Drive (HDD) or Navigation Unit (Navi Unit) follow the instructions below:
• 10132762Jun 12, 2014Electrical 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).
• 10055507Jun 4, 2014Electrical system. Some 2012-2014 model year prius v have a diagnostic trouble code (dtc) poa80 or poa7f due to dust build up in the battery cooling fan. 06/04/14
• 10132815May 21, 2014Fuel system, Equipment. Tech Tip: Greenhouse Gas Logic (GHG) has been implemented on Toyota A/C Systems to reduce tailpipe emissions. The Federal government issues CAFÉ (Corporate Average Fuel Economy) credits to vehicle manufacturers that implement new technologies that reduce the carbon footprint of the vehicles they produce.
• 10132814May 14, 2014Air bags, Electrical system. Tech Tip: Safety Connect is a vehicle option which requires a subscription fee for the system to be active. The first year of service is provided in the vehicle purchase price. Once the subscription has lapsed the DCM will be in an inactive state. In some instances, a DCM may need to be replaced even though the customer is not using the service.
• 10131826Apr 28, 2014Engine cooling. Some vehicles in particular geographic areas may exhibit a condition where the HVAC Evaporator Drain Hose has become obstructed with an insect nest. An insect repellent drain hose tip (ARINIX® Tip) is now available to help minimize future occurrences of this environmental condition. For some models, a new drain hose is required to properly fit the ARINIX® Tip. Follow the procedures in this bulletin for proper…
• 10133719Apr 23, 2014Equipment. In late April 2014, Toyota will be mailing an update to the Owner?s Manual for certain 2010 through 2013 Model Year Prius Plug-in Hybrid Vehicles (PHV) and certain 2012 through 2013 RAV4 Electric Vehicles (EV). Sample Owner Letter labels are provided below for your reference.
• 10131824Apr 22, 2014Other or unknown. This bulletin is no longer applicable and is now obsolete.
• 10133729Mar 12, 2014Engine cooling. Some 2010 ? 2015 model year Prius, 2012 ? 2015 Prius PHV, and 2012 ? 2016 Prius V vehicles equipped with a 2ZR-FXE engine may exhibit a MIL ?ON? condition with Diagnostic Trouble Codes (DTCs) P2111 (Throttle Actuator Control System) and P0A0F (Engine Failed to Start) present when ambient temperatures are below 23 F (?5 C). The intake manifold assembly has been improved to address this condition.
• 10131933Feb 28, 2014Equipment. Customer complains of Bluetooth connectivity concerns such as: Difficulty to pair phone, Intermittent Bluetooth failure to connect to the vehicle when first turning on the vehicle. 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 they have restored their…
• 10131908Feb 20, 2014Engine cooling. 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.
• 10042888Feb 20, 2014Engine cooling, Electrical system. Toyota: bulletin providing information on the maintenance and cleaning of excessive dust, lint, and/or other debris that could buildup on hv battery cooling fan that reduces efficiency of the system. *pe model 2010-2013 prius. Updated 5/14/14.
• 10131927Feb 4, 2014Engine. Starting with the 2010 Model Year, Toyota began a gradual transition to the use of synthetic 0w-20 viscosity engine oil. There are multiple benefits of this oil. Due to the improved performance and durability of 0w-20 synthetic oil, Toyota has extended the oil change intervals to 10,000 miles for most vehicle that require this oil.
• 10131902Feb 4, 2014Equipment. 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. The SST is used with all vehicles to deliver the update, however a unique Activation Number is required for each vehicle. Activation Numbers are provided in an Activation Card Number (ACN) pamphlet available through the normal parts…
• 10131952Jan 27, 2014Equipment. Some 2012 model year vehicles equipped with a Display Audio Navigation System and Entune? (version less than 2.1.0) may exhibit one or more of the following conditions:
• 10131951Jan 23, 2014Tires. Toyota vehicles are equipped with either conventional or run-flat tires. Sometimes punctures may occur as a result of contact with road debris or other hazards. If a puncture occurs, it may be possible to repair the tire and return it to service. With a conventional tire it is not possible to drive for an extended amount of time with the tire at low pressures as damage to the tire may occur.
• 10131961Jan 14, 2014Air bags. Toyota vehicles are equipped with Supplemental Restraint Systems (SRS), including various airbags and in some models, seat belt pre-tensioners, to help reduce the risk of injury in a collision. If a customer expresses any concerns that the SRS airbags or pre-tensioner devices did not perform as expected (including an unintended deployment event), please follow the steps in the recommendations section below.
• 10132010Dec 23, 2013Equipment. The customer is unable to delete their call history or contacts from the Denso GEN7 Navigation System. The ?delete? soft button on the multi-information display is greyed out and not selectable.
• 10062075Dec 23, 2013Equipment. Summary to be provided on a future date.
• 10131993Dec 19, 2013Visibility (wipers, defrost, mirrors). This bulletin is now obsolete. Please see T-SB-0185-13.
• 10131988Dec 19, 2013Visibility (wipers, defrost, mirrors). The following procedures are recommended during routine maintenance or in the event of a customer concern for wiper performance.
• 10132064Nov 18, 2013Other or unknown. This bulletin is no longer applicable and is now obsolete.
• 10054852Nov 18, 2013Electrical system. Toyota: there is a build up of debris, dust in hv battery cooling fan, and the malfunction indicator lamp (mil) on and a repair procedure is provided. Model 2012-2014 prius v.
• 10132058Nov 6, 2013Equipment. Use the following procedures to check and/or update the software version of Entune/Navigation for Non-HDD Type units.
• 10132057Nov 6, 2013Equipment. Applicability has been updated to include 2014 model year Avalon, Avalon HV, Camry, Camry HV, Prius, Prius C, Prius PHV, Prius V, Venza vehicles. Vehicle equipped with a Display Audio Navigation System and Entune (version less than 2.1.0) may exhibit one or more of the following conditions. Vehicle orientation slow to update after vehicle start up. Five Bing results are not all displayed on the map.
• 10132056Nov 6, 2013Equipment. This bulletin is now obsolete. Please see T-SB-0163-13 .
• 10061636Nov 6, 2013Equipment. Summary to be provided on a future date.
• 10132055Nov 4, 2013Seats, Air bags, Equipment. Beginning in 1998, Toyota introduced side airbags as optional equipment. Toyota does NOT recommend replacement of original seat covers with non-Toyota leather or other seat cover materials on vehicles due to the following: Seat covers NOT recommended by Toyota may affect side airbag performance, in general or in part, during an accident. Modifications that negatively affect side airbag performance can result in…
• 10054192Oct 31, 2013Electrical system. Toyota: an excessive build up of dust, lint, or other debris, in hv battery cooling fan, under severe operating conditions, that reduces efficiency of hv battery cooling system, in some vehicles, and cleaning and maintenance would address this condition. Model 2012-2014 prius v.
• 10132135Oct 24, 2013Equipment, Electrical system. 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 they have restored their phone data/settings recently.
• 10062070Oct 24, 2013Equipment. Summary to be provided on a future date.
• 10132136Oct 23, 2013Visibility (wipers, defrost, mirrors). The appearance of spots in tempered glass (when viewed at certain angles) is the result of the heat treating and quick quenching process during manufacturing.
• 10132134Oct 23, 2013Equipment. Some vehicles equipped with Display Audio may exhibit a condition where the touch screen is inoperative.

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