Service bulletins for the 2019 Toyota Avalon
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.
254 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Electrical system are shown. Show all
| T-SB-0122-20 Rev | 2021-06-21. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); ELECTRICAL SYSTEM. TSB: Some 2017 ? 2018 model year Highlander and Sienna, 2018 model year Camry, and 2019 model year Avalon vehicles with and without the stop and start feature may exhibit a MIL ON condition with Diagnostic Trouble Codes (DTCs) P07407E and/or P27567F. The Engine Control Module (ECM) (SAE term: Powertrain Control Module/PCM) logic has been modified to reduce the possibility of this condition. Follow the Repair Procedure in this bulletin to address this condition. |
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| T-SB-0071-20 Rev | 2021-06-21. 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 Rev | 2021-06-21. 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-SB-0001-21 | 2021-02-16. Service bulletin. AIR BAGS; ELECTRICAL SYSTEM. TSB: Some 2019 ? 2021 model year Avalon and Avalon Hybrid vehicles may exhibit a condition where the driver side and/or passenger side LED parking lights do not fully illuminate when the headlight switch and the engine are on and the vehicle is in reverse. Follow the Repair Procedure in this bulletin to address this condition. |
| T-SB-0122-20 Rev | 2021-02-16. Service bulletin. ELECTRICAL SYSTEM. TSB: Some 2017 ? 2018 model year Highlander and Sienna, 2018 model year Camry, and 2019 model year Avalon vehicles with and without the stop and start feature may exhibit a flex lock-up concern and MIL ON with Diagnostic Trouble Codes (DTCs) P07407E and/or P27567F. Vehicles that have experienced a delay in engagement from R to D will experience flex lock-up concerns from loss of solenoid pressure. The Engine Control Module (ECM) (SAE term: Powertrain Control Module/PCM) logic has been modified to reduce the possibility of this condition. Follow the Repair Procedure in this bulletin to address this condition. |
| T-SB-0122-20 | 2021-01-25. Service bulletin. ELECTRICAL SYSTEM. TSB: Some 2017 ? 2018 model year Highlander and Sienna, 2018 model year Camry, and 2019 model year Avalon vehicles with and without the stop and start feature may exhibit a flex lock-up concern and MIL ON with Diagnostic Trouble Codes (DTCs) P07407E and/or P27567F. Vehicles that have experienced a delay in engagement from R to D will experience flex lock-up concerns from loss of solenoid pressure. The Engine Control Module (ECM) (SAE term: Powertrain Control Module/PCM) logic has been modified to reduce the possibility of this condition. |
| T-SB-0071-18 Rev | 2021-01-25. Service bulletin. ELECTRICAL SYSTEM. TSB: Some 2018 model year Camry and 2019 model year Avalon vehicles equipped with 2GR-FKS (V6) engines may exhibit a MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs): ?P030000 ? Random/Multiple Cylinder Misfire Detected. ?P030027 ? Random/Multiple Cylinder Misfire Detected (Emission) Signal Rate of Change Above Threshold. ?P030085 ? Random/Multiple Cylinder Misfire Detected (Over Temperature) Signal Above Allowable Range. ?P030500 ? Cylinder 5 Misfire Detected. ?P030600 ? Cylinder 6 Misfire Detected. ?P160500 ? Rough Idling. Common characteristics when the misfire occurs are: ?High engine speed (5000 ? 6500 rpm). ?High engine load (100%+). ?Accelerator pedal position at 100%. The Engine Control Module (ECM) (SAE term: Powertrain Control Module/PCM) logic has been modified to reduce the possibility of this condition. Follow the Repair Procedure in this bulletin to address this condition. |
| T-SB-0110-20 | 2020-12-21. 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-0578-19 Rev | 2020-11-23. 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-0047-19 Rev | 2020-09-14. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). TSB: Some 2018 ? 2020 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System require a Special Service Tool (SST) USB flash drive to update the map, points of interest, and system software. The SST is used with applicable vehicles to deliver the update; however, the process for generating license keys differs from previous generations. Before attempting to perform a map update, the head unit?s expiration date must be checked. If the expiration date is still valid, a license key may be generated without the use of an activation card number. Updating the maps without the use of an activation card number is considered an Embedded Navigation Update (refer to pg. 10) and performing this process does not extend the duration of telematic map services. If the head unit?s expiration date is expired, or is expiring within the next 90 days, it should be recommended to the customer to purchase an activation number. Utilizing an activation number will initiate a Dynamic Navigation Update (refer to pg. 4). This Dynamic Navigation Update will perform the Embedded Navigation Update and provide telematic map services for a period of two years from the day that the Dynamic Navigation Update is performed. Activation card numbers are provided in an activation card number pamphlet available through the normal parts ordering system. |
| T-SB-0047-19 Rev | 2020-09-14. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. TSB: Some 2018 ? 2020 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System require a Special Service Tool (SST) USB flash drive to update the map, points of interest, and system software. The SST is used with applicable vehicles to deliver the update; however, the process for generating license keys differs from previous generations. Before attempting to perform a map update, the head unit?s expiration date must be checked. If the expiration date is still valid, a license key may be generated without the use of an activation card number. Updating the maps without the use of an activation card number is considered an Embedded Navigation Update (refer to pg. 10) and performing this process does not extend the duration of telematic map services. If the head unit?s expiration date is expired, or is expiring within the next 90 days, it should be recommended to the customer to purchase an activation number. Utilizing an activation number will initiate a Dynamic Navigation Update (refer to pg. 4). This Dynamic Navigation Update will perform the Embedded Navigation Update and provide telematic map services for a period of two years from the day that the Dynamic Navigation Update is performed. Activation card numbers are provided in an activation card number pamphlet available through the normal parts ordering system. |
| T-SB-0074-20 | 2020-09-14. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN; EQUIPMENT; ELECTRICAL SYSTEM. TSB: Some 2003 ? 2020 model year Prius, Prius C, Prius V; 2006 ? 2019 model year Highlander Hybrid Vehicle; 2007 ? 2020 Camry Hybrid Vehicle; 2013 ? 2020 model year Avalon Hybrid Vehicle; 2016 ? 2020 model year Mirai and RAV4 Hybrid Vehicle; and 2020 model year Corolla Hybrid Vehicles may exhibit a MIL ON condition with Diagnostic Trouble Codes (DTCs) P0A80/P1AC000 and/or P0A7F/P1A8000 stored due to dust or debris buildup in the HV battery cooling fan and/or HV cooling filter. Follow the procedure in this bulletin to address this condition. |
| T-SB-0074-20 | 2020-09-14. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. TSB: Some 2003 ? 2020 model year Prius, Prius C, Prius V; 2006 ? 2019 model year Highlander Hybrid Vehicle; 2007 ? 2020 Camry Hybrid Vehicle; 2013 ? 2020 model year Avalon Hybrid Vehicle; 2016 ? 2020 model year Mirai and RAV4 Hybrid Vehicle; and 2020 model year Corolla Hybrid Vehicles may exhibit a MIL ON condition with Diagnostic Trouble Codes (DTCs) P0A80/P1AC000 and/or P0A7F/P1A8000 stored due to dust or debris buildup in the HV battery cooling fan and/or HV cooling filter. Follow the procedure in this bulletin to address this condition. |
| T-TT-0553-19 Rev | 2020-08-24. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. TT: The new DCA-8000 Diagnostic Charger may cause your facility?s Ground Fault Circuit Interrupter (GFCI) breaker to trip. A GFCI breaker can be tripped for various reasons, one of the reasons may be related to the DCA-8000. We are investigating this issue to determine the root cause. Other reasons the GFCI breaker may trip ?Circuit demand is too high for GFCI rating ?Worn out GFCI internal contacts ?Improper installation or wiring of GFCI breaker |
| T-SB-0160-19 Obs | 2020-08-17. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. TSB: OBSOLETE NOTICE July 23, 2020: This bulletin is now obsolete. Please see T-SB-0071-20. |
| T-SB-0071-20 | 2020-08-17. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0160-19. Service Bulletin No. T-SB-0160-19 is obsolete and any printed versions should be discarded. 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 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. A software update is now available to address these conditions |
| T-SB-0062-20 | 2020-08-03. Service bulletin. ELECTRICAL SYSTEM. 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-SB-0064-18 Rev | 2020-07-27. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; 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 and can never be reused. Another feature, Add/Remove Key, is also available. Once a key is removed, it can never be reused. |
| T-TT-0611-20 | 2020-06-22. Service bulletin. EQUIPMENT; ELECTRICAL 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-TT-0516-18_Rev | 2020-06-22. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. TT: The microphone circuit passes through the DCM before reaching the radio/navigation system. To simplify the diagnosis of the microphone, Safety Connect SOS button lights, and DCM (Data Communication Module/telematics transceiver) inoperative conditions, refer to the procedure below to prevent unnecessary parts replacement. |
| T-SB-0160-19_Rev | 2020-06-15. Service bulletin. ELECTRICAL SYSTEM. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0143-18. Service Bulletin No. T-SB-0143-18 is obsolete and any printed versions should be discarded. 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 G49?Microphone remains on screen after voice recognition failure ?Unable to see text with headlights on (text is same color as 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 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 ?Amazon Alexa inoperative on iOS devices |
| T-SB-0023-20 | 2020-04-13. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. TSB: Some 2019 ? 2020 model year Avalon Hybrid, Camry Hybrid, and RAV4 Hybrid vehicles may exhibit a MIL ON condition with a ?Hybrid System Malfunction? message displayed and one or more of the following DTC(s) that represent an over current between the MG1, MG2, and inverter/PCU: ?P1C5D19 ? Drive Motor "A" Inverter Circuit Current Above Threshold ?P1C5F19 ? Generator Inverter Circuit Current Above Threshold These conditions typically occur on low vehicle mileage (less than 5,000). After an occurrence, the vehicle will be able to run normally with no drivability issues. Follow the Repair Procedure in this bulletin to address these conditions |
| T-TT-0442-17_Rev | 2019-12-16. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; 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 after the initial trial period. Once the subscription has expired the DCM (Telematics Transceiver) 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. If registration of the replacement DCM part is attempted using the Techstream utility after the account has become inactive, the registration will fail, and messages such as ?ATX webserver is Down? or ?ATX error? will be displayed. |
| T-SB-0160-19 | 2019-12-16. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. 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 screen after voice recognition failure ? Unable to see text with headlights on (text is same color as background) |
| T-TT-0553-19 | 2019-09-03. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. TT: The new DCA-8000 Diagnostic Charger may cause your facility?s Ground Fault Circuit Interrupter (GFCI) breaker to trip. A GFCI breaker can be tripped for various reasons, one of the reasons may be related to the DCA-8000. We are investigating this issue to determine the root cause. Other reasons the GFCI breaker may trip ? Circuit demand is too high for GFCI rating ? Worn out GFCI internal contacts ? Improper installation or wiring of GFCI breaker |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.