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Service bulletins for the 2014 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.

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

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Bulletins, newest first
T-TT-0424-162018-04-02. Service bulletin. WHEELS:LUGS/NUTS/BOLTS/STUDS. TT: Front Brake Vibration Key Points: * Issue can occur at any time if improper torque is applied on lug nuts * Over time, even one lug nut over or under torqued, can cause a vibration issue * When lug nuts are over torqued, this causes the rotor to have a runout out condition which can lead to brake vibration concerns * Brake vibration issues can occur at parking lot to highway speeds * Brake vibration issues can occur at light to moderate braking * Tightening lug nuts in a star pattern method during the torqueing process will assure that even/equal pressure is applied across the rotor hub surface * Torque sticks/wrenches should be used to apply accurate torque values when tightening * Do Not use impact guns/ratchets to completely run lug nuts up to the wheel surface
T-SB-0147-162018-04-02. Service bulletin. POWER TRAIN; BACK OVER PREVENTION. TSB: Some 2013 ? 2015 Prius PHV, Prius and 2013 ? 2016 Prius V vehicles may exhibit a vibration due to rough idle and/or tapping noise from the HV transaxle at cold start. The check engine light may also illuminate with (DTC) P0300, P0301, P0302, P0303, P0304 (Random/Multiple Cylinder Misfire Detected). The Engine Control Module/ECM (SAE Term: Powertrain Control Module/PCM) logic has been modified to reduce the possibility of this condition occurring. Follow the Repair Procedure in this bulletin to address this condition.
T-TT-0294-142018-04-02. Service bulletin. FUEL SYSTEM, GASOLINE; EQUIPMENT:APPLIANCE:AIR CONDITIONER. 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. GHG Logic technology works by automatically operating the HVAC system in REC mode when certain conditions are met, improving the A/C system cooling efficiency and reducing the vehicle's CO2 tailpipe emissions.
T-TT-0293-142018-04-02. Service bulletin. AIR BAGS; ELECTRICAL SYSTEM:SOFTWARE. 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.
T-SB-0012-13 Rev2018-04-02. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. 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-TT-0246-13 Rev2018-04-02. Service bulletin. VISIBILITY; ELECTRICAL SYSTEM. Tech Tip: Tips for writing a DPR (Dealer Product Report) on manufacturing issues for windows and windshields.
T-TT-0262-13 Rev2018-04-02. Service bulletin. ENGINE. 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 intervals). Due to the improved performance and durability of 0w20 synthetic oil, Toyota has extended the oil change intervals to 10,000 mile for most vehicles that require this oil. With this change, the following should be noted: The 2TR-FE (4Runner/Tacoma) and the 3UR-FBE (Flex Fuel Tundra/Sequoia) are the exceptions to this new change interval program; these engines have not been approved for the 10,000 mile interval at this time. A 5,000 mile oil change interval is still required for these vehicles. Also, the Flex Fuel 3UR-FBE requires a 2,500 mile interval when operated on E85 50% of the time or more. Only Toyota vehicles in which 0w20 oil is mandatory (except for the 2TR-FE & 3UR-FBE Engines) have been approved for extended oil change intervals. Vehicles in which 0w-20 is an option to 5w20 (or 5w30) will continue to require 5,000 mile change intervals, even if 0w20 oil is used. In case of vehicles with 10,000 mile oil change intervals, the 5,000 mile service interval has not been eliminated. The traditional 5,000 mile maintenance procedures (such as tire rotation) will continue to be required, and the fluid levels (including engine oil) will need to be checked and adjusted at this time. If the vehicle operation meets the standard criteria for "Special Operating Conditions" such as: driving off-road, on dirt roads, towing a trailer, making repeated short trips under 32 degrees F, or extensive idling, the engine oil must be replaced at 5,000 mile intervals, regardless of oil used.
T-TT-0180-12 Rev2018-04-02. Service bulletin. EQUIPMENT. Tech Tip: When replacing the Hard Disk Drive (HDD) or Navigation Unit (Navi Unit) follow the instructions below:
T-SB-0043-14 Rev2018-04-02. Service bulletin. EQUIPMENT:ELECTRICAL:ANTI-THEFT DEVICES. 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.
T-SB-0043-142018-04-02. Service bulletin. EQUIPMENT:ELECTRICAL:ANTI-THEFT DEVICES. 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.
T-TT-0453-17-Rev2018-04-02. Service bulletin. EQUIPMENT. TT: Previously, an error message was received when performing DCM activation initiated by Techstream. This condition has been remedied, and DCM activation utilizing Techstream can now be resumed.
T-TT-0309-14 Rev2018-04-02. Service bulletin. ELECTRICAL 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.
T-TT-0365-152018-04-02. Service bulletin. EQUIPMENT. 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-SB-0133-14 Rev2018-04-02. Service bulletin. EQUIPMENT. 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 each ehicle. Activation Numbers are provided in an Activation Card Number (ACN) pamphlet available through the normal parts ordering system. Use the process described in this bulletin to perform the update.
T-TT-0234-13 Rev2018-04-02. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). TT: Since MY 2011, several different update or upgrade USB SSTs have been issued for Toyota audio and navigation systems. Refer to the chart below for a comprehensive list of all current and previously issued USB SSTs and their applicability.
T-TT-0294-14 Rev2018-04-02. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. TT: Greenhouse Gas Logic (GHC) 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. GHC Logic technology works by automatically operating the HVAC system in REC mode when certain operating conditions are met, improving the A/C systems cooling efficiency and reducing the vehicle's C02 emissions.
T-TT-0234-13 Rev2018-04-02. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). TT: Since MY 2011, several different update or upgrade USB SSTs have been issued for Toyota audio and navigation systems. Refer to the chart below for a comprehensive list of all current and previously issued USB SSTs and their applicability.
T-TT-0293-14 Rev2018-04-02. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). TT: 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.
T-SB-0163-13 Rev2018-04-02. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). TSB: Use the following procedures to check and/or update the software version of Entune/Navigation for Non-HDD Type units.
T-TT-0453-172018-04-02. Service bulletin. EQUIPMENT:ELECTRICAL. TT: An error message is received when performing DCM activation initiated by Techstream. This is a known condition and will be remedied in the near future. Please discontinue DCM activations utilizing Techstream until further notice.
T-SB-0218-17_Rev2018-04-02. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; AIR BAGS. TSB: REVISION NOTICE July 20, 2017 Rev1: Applicability has been updated to exclude 2007 ? 2017 model year Avanza vehicles. Some hazardous material treatment and handling regulations at the state and local level define the pre-disposal deployment of airbag and pre-tensioner assemblies as hazardous material treatment. Hazardous material treatment may require special training, certification or licensing in certain areas. TMS recommends that dealership personnel carefully review and follow ALL local and state regulations, and where necessary, contract with Environmental Protection Agency (EPA) Licensed Hazardous Waste Transportation and Disposal facilities.
T-TT-0118-11 Rev2018-04-02. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. Technicians should confirm the following key points to minimize the potential for future MIL "ON" concerns after HV battery replacement.
T-TT-0234-132018-04-02. Service bulletin. EQUIPMENT. Since MY 2011, several different update or upgrade USB SSTs have been issued for Toyota audio and navigation systems. Refer to the chart below for a comprehensive list of all current and previously issued USB SSTs and their applicability.
T-PG006-00 Obsol2018-04-02. Service bulletin. EQUIPMENT:OTHER:LABELS. This bulletin is now obsolete. Please see T-SB-0054-13.
T-SB-0054-132018-04-02. Service bulletin. EQUIPMENT. California (CA), Federal (FED), and 50 State Certified emission control underhood labels (emission labels) may be obtained through your dealership?s Parts Department utilizing standard replacement parts ordering procedures. Follow the guidelines outlined in this bulletin to ensure proper label application.

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