2018 Toyota Avalon Technical Service Bulletins

178 technical service bulletins (TSBs) are on record for the 2018 Toyota Avalon. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10131671Jan 9, 2018Equipment. Safety Recall and Service Campaign - Technician Certification Requirements
• 10129202Jan 4, 2018Equipment. Safety Recall and Service Campaign - Technician Certification Requirements
• 10127066Dec 21, 2017Electrical system. TSB: Some customers may complain of the inability to use certain functions of the navigation/infotainment system while the vehicle is in motion. The following software update modifies the system functionality while the vehicle is in motion, improving customer experience. New software is available to address the following: ? Phone keypad unlocked while vehicle is in motion ? Contact list unlocked while vehicle is in…
• 10133654Nov 22, 2017Electrical 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…
• 10146519Nov 14, 2017Brakes. TSB: Some 2015 ? 2018 model year Toyota vehicles may exhibit brake vibration due to improper lug nut torque. Brake vibration can occur at any time if improper torque is applied to lug nuts. Even one lug nut over or under torqued can cause vibration.
• 10123430Oct 30, 2017Equipment. TSB: REVISION NOTICE October 30, 2017 Rev1: * Applicability has been updated to include 2018 model year vehicles. SUPERSESSION NOTICE The information contained in this bulletin supersedes SB No. T-SB-0012-13. Flash reprogramming allows the Electronic Control Unit (ECU) software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are released as field-fix procedures…
• 10123420Oct 27, 2017Body and structure. TSB: Vehicle replacement certification labels (the vinyl label installed on the driver door or door post) and VIN plates (the metal plate riveted to dashboard) may be available from Toyota, provided the request meets one of the criteria listed in this Service Bulletin.
• 10132410Jul 20, 2017Air bags, Equipment. TSB: REVISION NOTICE July 20, 2017 Rev1: Applicability has been updated to exclude 2007 ? 2017 model year Avanza vehicles. Some hazardous material treatment and handling regulations at the state and local level define the pre-disposal deployment of airbag and pre-tensioner assemblies as hazardous material treatment. Hazardous material treatment may require special training, certification or licensing in certain…
• 10115272Jul 7, 2017Equipment. TSB: An initialization procedure is required to activate the Entune App Suite Connect for Entune 3.0 Audio, Entune 3.0 Audio Plus and Entune 3.0 Premium Audio head units before they are used for the first time on new vehicles. The initialization procedure may also need to be performed under other circumstances, such as following a head unit replacement or after the customer's personal settings are erased.
• 10115264Jul 6, 2017Equipment. TSB: When a maintenance alert occurs, a message displays on the head unit with the "Call Dealer" button. It is important to program the dealer contact information into the head unit to ensure that the customer can schedule service.
• 10132358Jun 12, 2017Electrical system, Body and structure. TSB: Pre-Delivery Service (PDS) is a critical step in satisfying our new car customers. Customer feedback indicates the following areas deserve special attention when performing PDS: ? Careful inspection for paint chips/scratches and body dents/dings. ? Proper operation of electrical accessories (including interior light, clock, and radio reset). ? Interior cleanliness. ? Proper function of mechanical systems. A…
• 10132357Jun 12, 2017Equipment. TSB: 2018 Avalon/Avalon HV Pre-Delivery Service (PDS) Check Sheet
• 10132356Jun 12, 2017Electrical system. TSB: Some 2018 model year Avalon and Avalon HV vehicles have had the short pin removed at the assembly plant and temporarily stored in the engine compartment relay block to minimize battery discharge during transportation and storage. Follow the procedures in this bulletin to reinstall the short pin into its original location and confirm that all related Diagnostic Trouble Codes (DTCs) are cleared during…
• 10142506Apr 19, 2017Equipment, Electrical system. TT: 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 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.
• 10142502Apr 12, 2017Equipment. TT: During previous air conditioning service, leakage prevention agent (A/C stop leak) may have been added to the A/C system. Adding stop leak products to the A/C system is not a recommended or approved Toyota repair process. During A/C service, moisture enters the A/C system, and can react with the previously added A/C stop leak, forming a gelatinous substance. The gel substance that forms can cause the A/C…
• 10131893Mar 27, 2017Engine cooling. TT: Rev2 Some Customers may complain about a Hybrid Vehicle Battery cooling system warning message. This warning message may appear when the HV Battery cooling system loses efficiency due to debris on the filter and or some object obstructing the air inlet. Refer to the information below to address this issue.
• 10131860Mar 8, 2017Electrical system. TSB: Hybrid vehicles are equipped with 2 types of batteries: ? Hybrid Vehicles (HV) battery. ? Auxiliary (12V) battery. 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.
• 10131849Mar 6, 2017Equipment. 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 system and components. Any problems that are found should be corrected immediately.
• 10131746Mar 3, 2017Electrical system. TSB: A battery in a stored vehicle is subject to conditions that can reduce its performance and life. These conditions include storage period, temperature, parasitic drain, and battery load. Because of these factors, battery inspection and maintenance are required in order to ensure proper operation and optimal battery life. As a matter of policy, Toyota does not provide battery warranty coverage for discharges…
• 10131739Mar 1, 2017Tires. 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 the tires remain on the vehicle in the same location and in the same direction of rotation. Refer to the following procedure to ensure that the original tires stay in the same location on the…
• 10131790Feb 22, 2017Equipment. TSB: 2018 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…
• 10131786Feb 21, 2017Equipment. TT: This bulletin is regarding best practices when handling navigation systems that use Hard Disc Drive or Micro SD Card memory.
• 10131771Feb 8, 2017Equipment. TSB: Some 2018 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 using the following procedure during Pre-Delivery Service (PDS).
• 10152222Jan 23, 2017Electrical system. TT: Some Customers may complain about a Hybrid Vehicle Battery cooling system warning message. This warning message may appear when the HV Battery cooling system loses efficiency due to debris on the filter and or some object obstructing the air inlet.
• 10152210Jan 10, 2017Electrical system. TT: Some Customers may complain about a Hybrid Vehicle Battery cooling system warning message. This warning message may appear when the HV Battery cooling system loses efficiency due to debris on the filter and or some object obstructing the air inlet.
• 10145776Jul 21, 2016Equipment. Update on Technician Certification Requirements.
• 10197476May 4, 2001Equipment. Replacement vin plates.
• 10197473Jan 18, 1991Equipment. Product general information.

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