WenmarOpen by Wenmar Pro

Service bulletins for the 2014 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.

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

By type

By component

By trouble code

By topic

Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
TTT-0337-15 Rev12018-04-23. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. TT: When updating either the navigation or radio firmware, verify the vehicle applicability BEFORE beginning the update.
T-TT-0365-152018-04-23. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. 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.
TTT-0234-13 Rev62018-04-23. Service bulletin. EQUIPMENT:ELECTRICAL. 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.
TTT-0344-15 Rev12018-04-23. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. TT: iPhone text messages do not appear on multimedia dis[play.
T-TT-0360-152018-04-23. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. TT: Customers may experience connectivity issues when the following conditions are met: The customer's iPhone is operating on iOS9 firmware. The customer's iPhone is connected to the vehicle via Bluetooth. The customer may complain of the following issues: When receiving two incoming calls simultaneously, both calls are ended automatically. iTunes Radio app does not play via Bluetooth audio. Podcast and Audiobook media playback is inoperative via Bluetooth audio.
T-SB-0159-142018-04-23. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; STRUCTURE:BODY:ROOF AND PILLARS. TSB: Some 2013 ? 2014 model year Avalon and Avalon HV vehicles may exhibit a condition where the headliner is sagging or loose along the rear edge of the moon roof opening and there is a noticeable gap between the headliner and sun shade. This is due to the force of the headliner being greater than the strength of the Dual Lock? fasteners/adhesive which causes them to separate, allowing the headliner to sag in this area. Use the following Repair Procedure to address this condition.
T-SB-0157-142018-04-23. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. TSB: Some 2013 ? 2014 model year Avalon and Avalon HV vehicles equipped with a rear window sunshade may exhibit a condition in which the sunshade rises with no switch input in high ambient temperatures. Follow the Repair Procedure in this bulletin to address this condition.
SST Requirements2018-04-23. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. SSTs are key elements to provide your customers with swift and accurate repairs resulting in superior customer satisfaction.
T-SB-0026-132018-04-23. Service bulletin. EQUIPMENT:ELECTRICAL. If the hybrid vehicle is put into storage, the state of charge (SOC) of its HV battery and auxiliary battery will gradually decrease. To prevent the auxiliary battery from becoming discharged during storage, proper maintenance is necessary.
T-SB-0023-132018-04-23. Service bulletin. EQUIPMENT. 2014 model year vehicles are equipped with driver?s side floor mat retaining clips to secure the floor mat in the correct position. In addition, some models may utilize retaining clips for passenger side and rear seat floor mats as well. Follow the appropriate installation procedure to attach the driver?s side, and if applicable, the passenger?s side and rear seat floor mats to the vehicle carpet using the floor mat retaining clips during Pre-Delivery Service (PDS).
T-SB-0021-132018-04-23. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. 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-0020-132018-04-23. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Some 2014 model year vehicles are equipped with a Smart Key system, which allows the customer to enter and start the vehicle without using a mechanical key. To ensure the system is operating properly, the Smart Key functions (Smart Entry and Smart Start) should be inspected during Pre-Delivery Service (PDS). The following inspection procedure has been developed to confirm the proper operation of the Smart Key system prior to vehicle delivery.
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-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-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-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-SB-0294-172018-04-02. Service bulletin. EQUIPMENT. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes SB No. T-SB-0133-14. ? The Parts Information, Required Tools & Equipment, and On-Vehicle Navigation Update sections have 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 vehicle. Activation numbers are provided in an Activation Card Number pamphlet available through the normal parts ordering system.
T-SB-0108-15_Rev2018-04-02. Service bulletin. EQUIPMENT. TSB: REVISION NOTICE October 11, 2017 Rev2: ? The Required Tools & Equipment section has been updated to include a NEW USB drive map update. SUPERSESSION NOTICE The information contained in this bulletin supersedes SB No. T-SB-0006-13. Toyota models equipped with the Premium HDD Navigation (AVN/AW-EMV) system will periodically require an update to the Gracenote® database. Gracenote® includes detailed information for songs (genre, artist, song title, album name, etc.). The Gracenote® update will be included on the USB Drive Navigation Map Update SST. A Gracenote® update MUST be performed BEFORE a Navigation Map update. A Navigation Map update is NOT required to complete the Gracenote® update.
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-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.

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