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Service bulletins for the 2021 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.

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

By type

By component

By trouble code

Bulletins, newest first
T-TT-0672-21 Rev2022-01-18. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. TT: Some 2021-2022 TMMK built vehicles with A25A-FKS/FXS engines may exhibit an oil leak from the No.2 Oil Pan. This issue is currently under investigation
T-SB-0104-212022-01-18. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; ENGINE. TSB: Some 2018 ? 2022 model year Toyota vehicles equipped with an A25A-FKS, A25A-FXS, or M20A-FKS engine may exhibit one or more of the following conditions: ?Milky/Discolored engine oil. ?An ?Oil Pressure Low? warning message on the Multi-information Display (MID). ?A MIL ON condition with Diagnostic Trouble Codes (DTCs) P05202A (Engine Oil Pressure Sensor/Switch "A" Signal Stuck in Range) and/or P052477 (Engine Oil Pressure too low [Severe]). Moisture from blow-by gases condenses and accumulates in the engine oil during short trips in extreme cold weather. When the moisture in the oil freezes, the oil pressure may drop, and the aforementioned warning indicators may display. Follow the procedures in this bulletin to address these conditions.
T-SB-0094-212021-12-13. Service bulletin. STRUCTURE. TSB: Some 2005 ? 2022 model year Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty smell is present. Follow the procedures in this bulletin to remediate the odor and address this condition. The purpose of this service bulletin is to provide general guidelines and procedures for odor remediation. This service bulletin provides a guide on how to prepare the interior of the vehicle prior to an odor remediation being performed, as well as contact information for an approved vendor who will arrange the remediation, and instructions on how to prepare the interior of the vehicle for reassembly once the remediation has been completed. Refer to all model and model year specific Repair Manuals and the EPA (Environmental Protection Agency) website for the most up-to-date safety and precautionary guidelines. This service bulletin is to provide a general overview and direction for the odor remediation process.
T-TT-0673-21 Rev2021-12-13. Service bulletin. SUSPENSION:FRONT:SHOCK ABSORBER. TT: Vehicle has an abnormal noise condition when going over speed bumps or irregular roads. Noise is coming from front shock absorber
T-TT-0673-212021-12-13. Service bulletin. SUSPENSION. TT: Vehicle has an abnormal noise condition when going over speed bumps or irregular roads. Noise is coming from front shock absorber
TTT0672212021-12-13. Service bulletin. ENGINE AND ENGINE COOLING. TT: Some 2021-2022 TMMK built vehicles with A25A-FKS/FXS engines may exhibit an oil leak from the No.2 Oil Pan. This issue is currently under investigation.
T-SB-0035-21 Rev2021-11-15. Service bulletin. EQUIPMENT. TSB: 2022 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-SB-0095-20 Obs2021-11-15. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. OBSOLETE NOTICE October 14, 2021: This bulletin is now obsolete. Please see T-SB-0089-21.
T-SB-0089-212021-11-15. Service bulletin. EQUIPMENT:ELECTRICAL. TSB: Some 2020 model year Camry, Camry Hybrid, Corolla Hatchback, RAV4, and RAV4 Hybrid vehicles may exhibit one or more of the following conditions: ?Diagnostic Trouble Code (DTC) B15A804 is present in current or history. ?Red SOS LED stays on after bulb check. ?Toyota App does not accept the activation code. ?Toyota App is inoperative. ?SOS call center does not receive the vehicle?s location in a timely manner. ?Toyota App shows an error 42 when trying to execute a command. ?Unable to remote start the vehicle with the key fob (if equipped). ?Unable to subscribe to remote services. ?Unable to activate Wi-Fi. ?Destination Assist is inoperative. Some 2020 ? 2021 model year Camry, Camry Hybrid, Corolla Hatchback, RAV4, and RAV4 Hybrid vehicles and some 2021 model year Avalon, Avalon Hybrid, Corolla, Corolla Hybrid, Sienna Hybrid, and Venza Hybrid vehicles may exhibit one or more of the following conditions: ?DTC B15A804 is present in current or history. ?Red SOS LED stays on after bulb check. ?Toyota App is inoperative. ?Unable to subscribe to remote services. ?Unable to activate Wi-Fi. ?Depleted 12V vehicle battery when in IG-OFF. ?Unable to reconnect out of network. A DCM reset and firmware update is now available to address these conditions. Follow the DCM Reset and Firmware Update Procedure in this bulletin to update the firmware.
T-TT-0663-212021-10-25. Service bulletin. LANE DEPARTURE; VISIBILITY. TT: When used in conjunction with the Repair Manual, these Blind Spot Monitor, Forward Recognition Camera, and Front Millimeter Wave Radar tips leverage SSTs and readily available tools to support target placement in varying shop environments.
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-TT-0659-21 Rev2021-09-13. Service bulletin. POWER TRAIN. TT: Some 2014-2021 model year vehicles equipped with Dynamic Torque Control AWD system may experience a ?Noise? or ?Abnormal Operation? condition from the rear differential front coupling. In some cases, even an ?AWD System Message? with or without a DTC may be present with or without other conditions present.
T-SB-0050-212021-09-13. Service bulletin. EQUIPMENT. TSB: Long-term or off-site storage requires special care to keep vehicles factory fresh and ready for delivery. The following guidelines should be performed to minimize vehicle component/part degradation due to extended vehicle storage conditions. Long-term storage can affect a vehicle?s systems and components. Any problems that are found should be corrected immediately.
T-SB-0035-212021-06-21. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. TSB: 2022 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-SB-0034-212021-06-21. Service bulletin. TIRES; WHEELS. TSB During the manufacturing process, tires are mounted on the vehicle as matched sets to help reduce conditions such as pulling or drifting. If the wheels are replaced or refinished before vehicle delivery, it is important that the tires remain on the vehicle in the same location and in the same direction of rotation. Refer to the Tire Positioning Procedure in this bulletin to ensure that the original tires stay in the same location on the vehicle.
Toyota PRO21-UFR2021-06-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. UPDATES TO THE 2014-2021 TOYOTA UNIVERSAL FLAT RATE MANUAL
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-SB-0025-212021-06-21. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. TSB: Some 2020 ? 2021 model year vehicles equipped with Audio, Audio Plus, or Premium Audio (versions 1784) or earlier may exhibit one or more of the following conditions: ?Intermittent blank screen. ?Navigation map update fails. ?Album art inoperative. ?Pause function intermittently inoperative in CD mode. ?Intermittent DTC B15FE present. ?Abnormal energy flow screen appearance on Hybrid models. ?Abnormal phone call operation during Apple CarPlay®. ??No Information? displayed in Information Screen. ?No audio after voice guidance in Android Auto. ?Abnormal charging scheduling operation on RAV4 Prime models. ?Abnormal XM operation when using Apple CarPlay®. Follow the Multimedia Software Update Procedure in this bulletin to install the latest software version.
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.
T-SB-0015-212021-04-19. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. TSB: This Service Bulletin provides a procedure to properly perform the Techstream ?Control the Injection Mode? active test in some 2016 ? 2021 model year Toyota vehicles equipped with an FKS engine.
Toyota Safety Re2021-04-19. Service bulletin. AIR BAGS. Toyota Safety Recall and Service Campaign - Technician Certification Requirements
T-TT-0599-20 Rev2021-04-19. Service bulletin. ELECTRICAL SYSTEM; BACK OVER PREVENTION. TT: Vehicle control apps might not operate as expected at times due to preconditions (normal operating parameters) not being established, vehicle settings and/or network/cellular coverage concerns.
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-0008-212021-03-15. Service bulletin. POWER TRAIN. TSB: Some 2021 model year Avalon, Highlander, and Camry vehicles equipped with UA80E or UA80F transmissions may exhibit a whine or grind noise from the transmission. This condition may be caused by an issue with the front carrier assembly pinion shafts. Follow the Repair Procedure in this bulletin to address this condition.

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