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Service bulletins for the 2013 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.

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

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Bulletins, newest first
T-TT-0219-132018-04-23. Service bulletin. ELECTRICAL SYSTEM. Some vehicles may exhibit a seat heater "ON" condition when the switch is in the off position.
T-SB-0391-08 Rev2018-04-23. Service bulletin. POWER TRAIN. This bulletin contains general vehicle pulling diagnosis and repair procedures along with specific information to help correct pulling complaints.
T-SB-0033-132018-04-23. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Some customers may inquire about the frequency and power output of the Smart Key/Smart Entry systems used on various models. The Smart Key/Smart Entry systems conform to all applicable FCC rules. This bulletin details the applicable specifications for these systems.
T-TT-0005-102018-04-23. Service bulletin. ENGINE. Starting with 2010 Model Year, Toyota began a gradual transition to the use of synthetic 0W-20 viscosity engine oil. There a re man benefits of this oil.
T-TT-0227-132018-04-23. Service bulletin. EQUIPMENT:MECHANICAL. Some vehicles may exhibit a condition when the fuel door lid cannot be opened when the vehicle is in the unlocked position. Also, it may be able to open when locked.
T-SB-0030-12 Rev2018-04-23. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin is now obsolete. Please see T-SB-0051-13.
T-SB-0051-132018-04-23. Service bulletin. EQUIPMENT:ELECTRICAL. 2012-2013 model year vehicles equipped with a Display Audio Navigation System and Entune (version less than 2.2.0) may exhibit one or more of the following conditions.
T-SB-0039-132018-04-23. Service bulletin. LANE DEPARTURE; VISIBILITY. Some 2013 model year Avalon and Avalon HV vehicles may display a ?Check Blind Spot Monitor System? message on the multi-information display with Diagnostic Trouble Code (DTC) C1AB4 and/or C1AB5 stored. The procedure in this bulletin has been developed to address this condition.
T-SB-0038-132018-04-23. Service bulletin. STRUCTURE. Some 2013 model year Avalon and Avalon HV vehicles may exhibit a condition where the rear sunshade is inoperative and appears to be binding in the package tray. Please follow the process below to address this condition.
ER4 Dealer Lette2018-04-23. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Safety Recall completion is important not only in satisfying government requirements but also is an integral part of our commitment to meet customer expectations of Toyota products. Toyota will be sending Safety Recall Follow-Up Notices to remind owners whose vehicles have not yet had campaign repairs completed. We request your assistance in completing the applicable campaign repairs as owners receive the Follow-Up Notice and contact your dealership. Please note the follow-up activity may cause an increase in your current campaign owner appointments. Toyota will continue with additional follow-up activities in the months to come. Please take this into consideration when analyzing your manpower requirements.
ER4 Region Lette2018-04-23. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Toyota will be sending Safety Recall Follow-Up Notices to remind owners whose vehicles have not yet had campaign repairs completed. Please note the following information for Regional and PD associates.
T-TT-0288-142018-04-23. Service bulletin. ENGINE AND ENGINE COOLING. Prior to installing remanufactured U660 and U760 transaxles, it is necessary to remove the lower oil cooler tube union from the original transaxle case and install it into the reman unit. A NEW O-ring and printed installation instructions are supplied in separate bag with the reman unit. An instruction tag is also affixed to the unit.
ER4 Dealer Lette2018-04-23. Service bulletin. TIRES:TEMPORARY/EMERGENCY SPARE TIRE; VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING. Safety Recall completion is important not only in satisfying government requirements but also is an integral part of our commitment to meet customer expectations of Toyota products. Toyota will be sending Safety Recall Follow-Up Notices to remind owners whose vehicles have not yet had campaign repairs completed. We request your assistance in completing the applicable campaign repairs as owners receive the Follow-Up Notice and contact your dealership. Please note the follow-up activity may cause an increase in your current campaign owner appointments. Toyota will continue with additional follow-up activities in the months to come. Please take this into consideration when analyzing your manpower requirements.
ER4 Region Lette2018-04-23. Service bulletin. TIRES:TEMPORARY/EMERGENCY SPARE TIRE; VISIBILITY:WINDSHIELD WIPER/WASHER:SWITCH/WIRING. Toyota will be sending Safety Recall Follow-Up Notices to remind owners whose vehicles have not yet had campaign repairs completed. Please note the following information for Regional and PD associates.
T-SB-0229-12_Rev2018-04-23. Service bulletin. ELECTRICAL SYSTEM. TSB: REVISION NOTICE November 22, 2017 Rev1: ? Applicability has been updated to include 2014 ? 2018 model year vehicles. Any previous printed versions of this bulletin should be discarded. In the event that a Toyota vehicle becomes submerged in water, many components may be physically damaged. Electrical and electronic components, including wiring harnesses, are particularly susceptible to corrosion and subsequent malfunction. Although any flooding can be damaging, salt water flooding elevates the potential for abnormal conditions and may increase risks due to its highly corrosive and conductive nature. Salt residue also continues to corrode and remain conductive even after a vehicle dries. This bulletin is intended to assist with safe handling and inspection of flood damaged vehicles and to provide basic guidance on likely needed repairs.
T-SB-0133-14_Obs2018-04-23. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). TSB: OBSOLETE NOTICE November 16, 2017: This bulletin is now obsolete. Please see T-SB-0294-17.
T-SB-0012-13 Rev2018-04-02. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. TSB: OBSOLETE NOTICE: September 14, 2016: This bulletin is now obsolete. Please see T-SB-0134-16.
T-SB-0166-162018-04-02. Service bulletin. BACK OVER PREVENTION; STRUCTURE:BODY:DOOR:HINGE AND ATTACHMENTS. TSB: Some 2013 ? 2016 model year Avalon and Avalon HV vehicles may exhibit a rattle noise from the base of the left front door trim during audio playback. Follow the procedure in this bulletin to address this condition.
T-SB-0142-13 Rev2018-04-02. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. TSB: REVISION NOTICE November 10, 2016 Rev2: ? Applicability has been updated to include 2016 ? 2017 model year Toyota vehicles. ? Parts Information section has been updated. Some 2004 ? 2017 model year Toyota vehicles may exhibit odors naturally occurring from the HVAC system and/or related environmental factors. Although there is no way to eliminate these odors, follow the General Procedure in this bulletin to minimize the odors experienced.
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-TT-0296-142018-04-02. Service bulletin. SEATS; STRUCTURE. Tech Tip: During the E0B campaign for MY 13-14 Avalon seat heaters, some of the metal clips attaching the seat back cover to the seat frame may become bent / damaged and no longer allow the seat back cover to fit properly on the frame. Previously, the entire seat back cover assembly (P/N: 71705-07071-A0/B0/C0) had to be replaced to repair the vehicle, now the metal clips are available as a service part.
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-TT-0010-10 Rev2018-04-02. Service bulletin. BACK OVER PREVENTION; ENGINE. Tech Tip: Low battery voltage can contribute to a MIL "ON" condition for P0335 (Crankshaft Position Sensor Circuit) and/or P0340 (Camshaft Position Sensor Circuit) due to inconsistent rotational speed of the engine's crankshaft.
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.

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