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Service bulletins for the 2020 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.

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

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Bulletins, newest first
T-SB-0080-19 Rev2021-09-13. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. TSB: Some 2006 ? 2022 model year Toyota 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 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 handling and installation of this optional service part.
T-SB-0047-20 Obs2021-09-13. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. OBSOLETE NOTICE July 09, 2021: This bulletin is now obsolete. Please see T-SB-0051-21.
T-SB-0051-212021-09-13. Service bulletin. EQUIPMENT:ELECTRICAL. TSB: Some 2019 model year RAV4 and RAV4 Hybrid and 2018 ? 2020 model year Sienna vehicles equipped with Audio Plus (version 1010) or Premium Audio (version 1010) or earlier may exhibit one or more of the following conditions: ?Toyota apps fail to download. ?Bluetooth® is unable to automatically connect after key cycle. ?Abnormal microphone operation. ?Sirius XM® antenna disconnection history Diagnostic Trouble Code (DTC) B15FE. ?No outgoing voice during phone calls when using Apple CarPlay®. ?Incoming calls incorrectly show on the multi-information display (MID) when using Apple CarPlay®. ?CAN networking DTC B1321. ?Volume inoperative after using Siri®. ?Unable to adjust the treble audio setting. ?Song information flickering. ?Unable to select Sirius XM® music genre by voice recognition. ?Noise when hanging up call on handset. ?Transferred contacts do not match the number of handset contacts. ?Sirius XM® sound slow to start. ?Abnormal Toyota apps and Scout Operation Some 2020 model year Prius and Prius Prime, 2019 model year RAV4 and RAV4 Hybrid, and 2018 ? 2020 model year Sienna vehicles equipped with Audio Plus (version 1195), Premium Audio (version 1195), or Navigation (version 1035) or earlier may exhibit one or more of the following conditions: ?Unable to play audio source after incoming call. ?Software enhancements. ?Intermittent rebooting. ?Unable to register Bluetooth® devices from Bluetooth® Audio Mode. ?Unable to pair Android? devices after Google? apps update. ?Unable to access camera diagnosis system. ?USB audio does not resume. ?Intermittent Bluetooth® disconnection. ?Abnormal voice recognition operation. ?Phone call history does not update. ?Bluetooth® loses connection after USB connection is made. ?Clock not displayed on the map screen. ?Intermittent phone ringing with no incoming phone call.
Toyota PRO21-UFR2021-06-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. UPDATES TO THE 2014-2021 TOYOTA UNIVERSAL FLAT RATE MANUAL
T-SB-0071-20 Rev2021-06-21. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ELECTRICAL SYSTEM. TSB: Some 2019 model year Avalon and Avalon Hybrid vehicles equipped with Entune? Audio Plus (version 1002) or Entune? Premium Audio (version 1002) or earlier may exhibit one or more of the following conditions: ?Incorrect GPS date and time. ?Abnormal Bluetooth® operation. ?Abnormal Wi-Fi operation. ?Microphone remains on the screen after voice recognition failure. ?Unable to see text with headlights on (text is the same color as the background). Some 2019 ? 2020 model year Toyota vehicles equipped with Entune? Audio (version 1007), Entune? Audio Plus (version 1011), or Entune? Premium Audio (version 1011) or earlier may exhibit one or more of the following conditions: ?Phone does not auto-connect on startup. ?Intermittent black screen. ?Apple CarPlay® home screen widget turns white when USB flash drive is disconnected. ?Abnormal phone book sorting. ?Unable to see DCM Status when in dark red or dark blue modes. ?XM no signal banner appears at all times. ??Check antenna,? ?ID Displaying,? or ?Seeking? always displays on XM mode. ?Unable to switch Bluetooth® devices. ?Apps button is inactive in the voice recognition hint screen when using Apple CarPlay®. ?Incorrect Spanish translations. ?Voice recognition is not canceled during a phone call. ?Low Easy Speak volume. ?Voice recognition ?Web Search? is inoperative. ?Entune? apps are inoperative and ?When it is safe and legal to do so, please ensure your Entune? App Suite application is running and logged in on your phone? pop-up appears. ?Download screen appears even though nothing is being downloaded. ?Intermittent partially white screen. ?Screen intermittently locked. ?Text goes off the edge of the screen. ?Screen is black for 10 seconds after shifting out of Reverse when using Apple CarPlay® A software update is now available to address these conditions. Follow the Software Update Procedure in this bulletin to update the softwa
T-TT-0611-20 Rev2021-06-21. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). TT: To assist with the early detection and early resolution of audio related concerns, it may be requested as part of the remanufactured head unit return to recover MMR data from the head unit. The following steps are instructions on how to retrieve the data from the system and are only to be used when requested by audio suppliers, FTS, and/or FPEs.
T-PG007-012021-06-14. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Replacement vin plates.
T-PG002-912021-06-14. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Product general information.
Toyota Safety Re2021-04-19. Service bulletin. AIR BAGS. Toyota Safety Recall and Service Campaign - Technician Certification Requirements
T-TT-0636-20 Rev2021-04-19. Service bulletin. BACK OVER PREVENTION; SERVICE BRAKES. TT: Some Toyota vehicles installed with Toyota Complete Maintenance Care (TCMC) brake pads may exhibit a groan or squeak noise in various driving conditions.
T-SB-0012-212021-04-19. Service bulletin. SEATS. TSB: Some 2010 ? 2021 model year Toyota vehicles may exhibit paint stains after the removal of Rapgard?. The paint stains may appear to be under the clear coat but are usually under wrinkles in the Rapgard?. The wrinkles may trap water and cause the paint to stain from the trapped moisture, especially on horizontal surfaces such as the hood, roof, and trunk. Follow the Repair Procedure in this bulletin to address this condition.
T-SB-0149-19 Rev2021-03-15. Service bulletin. STRUCTURE. TSB: Some 2017 ? 2021 model year Prius Prime vehicles may exhibit corrosion on the back door sub-assembly steel reinforcement panel visible below the opener switch and rear camera. Follow the Repair Procedure in this bulletin to address this condition.
T-SB-0032-20 Rev2021-03-15. Service bulletin. EQUIPMENT. TSB: Replacement certification labels (the vinyl label installed on the driver door or door post) and VIN plates (the metal plate riveted to dashboard) (see Figure 1) for most 1979 ? 2021 model year vehicles may be available provided the requests meet the criteria listed in this Service Bulletin. Follow the Procurement Procedure in this bulletin to request a replacement certification label or VIN plate.
T-TT-0636-202021-02-16. Service bulletin. BACK OVER PREVENTION; SERVICE BRAKES. TT: Some Toyota vehicles installed with Toyota Complete Maintenance Care (TCMC) brake pads may exhibit a groan or squeak noise in various driving conditions.
T-TT-0636-202021-02-01. Service bulletin. SERVICE BRAKES, HYDRAULIC. TT: Some Toyota vehicles installed with Toyota Complete Maintenance Care (TCMC) brake pads may exhibit a groan or squeak noise in various driving conditions.
T-SB-0047-20 Rev2021-01-25. Service bulletin. EQUIPMENT:ELECTRICAL:AUX AUDIO JACK/PLUG. TSB: Some 2019 model year RAV4 and RAV4 Hybrid and 2018 ? 2020 model year Sienna vehicles equipped with Audio Plus (version 1010) or Premium Audio (version 1010) or earlier may exhibit one or more of the following conditions: ?Toyota apps fail to download. ?Bluetooth® is unable to automatically connect after key cycle. ?Abnormal microphone operation. ?Sirius XM® antenna disconnection history Diagnostic Trouble Code (DTC) B15FE. ?No outgoing voice during phone calls when using Apple CarPlay®. ?Incoming calls incorrectly show on the multi-information display (MID) when using Apple CarPlay®. ?CAN networking DTC B1321. ?Volume inoperative after using Siri®. ?Unable to adjust the treble audio setting. ?Song information flickering. ?Unable to select Sirius XM® music genre by voice recognition. ?Noise when hanging up call on handset. ?Transferred contacts do not match the number of handset contacts. ?Sirius XM® sound slow to start. ?Abnormal Toyota apps and Scout Operation.
T-SB-0112-202020-12-21. Service bulletin. EQUIPMENT:ELECTRICAL. TSB: Some 2018 ? 2020 model year Sienna (XLE, Limited); 2019 model year Avalon, Avalon Hybrid, Corolla Hatchback, Highlander (Platinum only), Highlander Hybrid (Platinum only), RAV4, and RAV4 Hybrid; and 2020 model year Corolla, Corolla Hybrid, Prius (excluding Limited), and Prius Prime (excluding XLE, LTD) vehicles equipped with Safety Connect may exhibit one or more of the following conditions: ?SOS button lights are inoperative ?Bluetooth® microphone and voice command are inoperative ?Right front audio speakers are inoperative ?Connected services are inoperative ?Remote start is inoperative A replacement telematics transceiver assembly is now available to address these conditions. Follow the Repair Procedure in this bulletin to address these conditions.
T-SB-0110-202020-12-21. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. TSB: This bulletin includes basic procedures for performing an at battery rescue charge on high voltage (HV) Ni-MH and Li-ion batteries. This bulletin should be used in conjunction with the applicable model and model year Repair Manual while performing the battery rescue charge. The GRX-5100 should be used wherever the Repair Manual references the Toyota Hybrid System (THS) charger.
T-TT-0631-202020-11-30. Service bulletin. EQUIPMENT. TT: NOTE: This document only applies to certain audio packages for the following vehicles. 2019 C-HR (Audio Plus & Premium Only) 2020 Prius (Audio Only) 2020 Prius Prime (Audio Plus Only) Head unit telematics services become inoperative after DCM replacement and activation if the guest has an ACTIVE Verizon Wi-Fi Pre-Paid subscription. Head unit services include Wi-Fi, Destination Assist, Dynamic Navigation, and Dynamic Voice Recognition. Verizon is not able to transfer the Pre-Paid subscription to the new DCM automatically. As a result, the guest is unable to use their head unit telematics services. At this time if the DCM is replaced and activated before confirming the guests Wi-Fi subscription status, this may require Verizon?s IT to perform a manual fix on the customer?s account.
T-TT-0628-202020-11-30. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS. TT: HVAC drain tube is found to be blocked/clogged.
T-SB-0047-20 Rev2020-11-30. Service bulletin. BACK OVER PREVENTION. TSB: Some 2019 model year RAV4 and RAV4 Hybrid and 2018 ? 2020 model year Sienna vehicles equipped with Audio Plus (version 1010) or Premium Audio (version 1010) or earlier may exhibit one or more of the following conditions: ?Toyota apps fail to download. ?Bluetooth® is unable to automatically connect after key cycle. ?Abnormal microphone operation. ?Sirius XM® antenna disconnection history Diagnostic Trouble Code (DTC) B15FE. ?No outgoing voice during phone calls when using Apple CarPlay®. ?Incoming calls incorrectly show on the multi-information display (MID) when using Apple CarPlay®. ?CAN networking DTC B1321. ?Volume inoperative after using Siri®. ?Unable to adjust the treble audio setting. ?Song information flickering. ?Unable to select Sirius XM® music genre by voice recognition. ?Noise when hanging up call on handset. ?Transferred contacts do not match the number of handset contacts. ?Sirius XM® sound slow to start. ?Abnormal Toyota apps and Scout Operation. Some 2020 model year Prius and Prius Prime, 2019 model year RAV4 and RAV4 Hybrid, and 2018 ? 2020 model year Sienna vehicles equipped with Audio Plus (version 1195), Premium Audio (version 1195), or Navigation (version 1035) or earlier may exhibit one or more of the following conditions: ?Unable to play audio source after incoming call. ?Software enhancements. ?Intermittent rebooting. ?Unable to register Bluetooth® devices from Bluetooth® Audio Mode. ?Unable to pair Android? devices after Google? apps update. ?Unable to access camera diagnosis system. ?USB audio does not resume.?Intermittent Bluetooth® disconnection. ?Abnormal voice recognition operation. ?Phone call history does not update. ?Bluetooth® loses connection after USB connection is made. ?Navigation inoperative. ?Microphone disconnected pop-up message. ?Clock not displayed on the map screen. ?Intermittent phone ringing with no incoming phone call.
T-SB-0062-20 Rev2020-11-30. Service bulletin. EQUIPMENT:ELECTRICAL. TSB: Some 2004 ? 2020 model year Hybrid vehicles may exhibit an excessive buildup of dust, lint, or debris in the HV battery intake filter or cooling fan. The condition could reduce the efficiency of the HV battery cooling system. Perform the procedures outlined in this bulletin to address this condition.
T-TT-0578-19 Rev2020-11-23. Service bulletin. STEERING; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. 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. 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-SB-0158-18 Rev2020-11-23. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. 2020 model year Toyota vehicles are equipped with driver side floor mat retainers to secure the floor mat in the correct position. In addition, some models may also utilize retainers for passenger side and rear seat floor mats. During Pre-Delivery Service (PDS), follow the appropriate Installation Procedure to attach the driver side, and if applicable, the passenger side and rear seat floor mats to the vehicle carpet using the floor mat retainers. If installation instructions are included in the floor mat kit, place the instructions in the vehicle?s glove box for customer reference.
T-TT-0621-202020-09-14. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS. TT: Any HVAC repair requiring reassembly of the quick connect fitting between the suction hose sub-assembly and the suction pipe sub-assembly located at the top right of the engine compartment.

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