WenmarOpen by Wenmar Pro

Service bulletins for the 2020 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.

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

By type

By component

By trouble code

By topic

Only bulletins with component: Body and frame are shown. Show all

Bulletins, newest first
T-SB-0038-242024-07-06. Service bulletin. STRUCTURE:BODY. To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover. The purpose of the wheel film is to shield the disc brake rotor from weather elements and initial rust before the vehicle is delivered to the customer. Consequently, the film should remain on the wheel for as long as possible. SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. PD017-04. •The entire bulletin has been updated.
T-SB-0035-242024-07-06. Service bulletin. STRUCTURE:BODY. Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere. If these acidic compounds settle on an exposed vehicle, especially the horizontal areas such as the hood, roof, and decklid, significant damage to the painted surfaces can occur. Acid rain damage can typically be identified on vehicles by the presence of stains on the paint surface that resemble hard water spots. Unlike water spots however, acid rain damage cannot be removed by regular washing procedures. Also, because acid rain can etch and soften the paint, normal buffing or polishing repair procedures should not be attempted. This can cause further damage and result in visible depressions in the paint surface. The following are the three major categories of acid rain damage: •Minor damage: requires only buffing to repair. •Moderate damage: usually requires neutralizing, color sanding, and buffing. •Severe damage: extending beyond 1/2 mil of clearcoat on a pearl, metallic, or solid color, requires neutralization, sanding, and repainting. In cases where acid rain damage is minor, neutralization and buffing with a liquid-type paint finessing product may provide an adequate repair. Only specially formulated products outlined in this bulletin should be used for that purpose. Unfortunately, other than minor damage, there is no simple method of determining the actual extent (depth) of acid penetration other than color sanding a representative affected area until there is no visible etching or depressions, followed by measuring the amount of paint removed with either a magnetic or digital-type film thickness gauge. The procedures in this bulletin are intended for use by qualified body/paint technicians and should not be attempted by inexperienced personnel. While the quality and durability of paint on Toyota vehicles is continuously being improved, it remains the dealer’s responsibility to protect and maintain the quality of the vehicle’s paint finish after receipt at the dealership prior to the first sale. To read, While the quality and durability of paint on Toyota vehicles is continuously being improved, it remains the dealer’s responsibility to protect and maintain the quality of the vehicle’s paint finish after receipt at the dealership prior to first sale. Perform frequent vehicle washing, as often as daily, during high heat and humidity periods to minimize the potential for paint damage due to acid rain exposure. This is especially important in geographical areas known for high frequency and concentration of acid rain and industrial fallout.
TSB001221Rev22022-10-17. Service bulletin. STRUCTURE. TSB: Some 2010 ? 2022 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
TSB001221Rev22022-09-15. Service bulletin. STRUCTURE. TSB: Some 2010 ? 2022 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-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-SB-0119-202021-01-25. Service bulletin. BACK OVER PREVENTION:SOFTWARE; STRUCTURE; 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. Follow the process in this bulletin to perform the update.
T-SB-0073-19 Obs2020-08-17. Service bulletin. STRUCTURE:BODY. OBSOLETE NOTICE July 31, 2020: This bulletin is no longer applicable and is now obsolete.
T-TT-0613-202020-06-22. Service bulletin. STRUCTURE; EQUIPMENT. TT: Unibody vehicles commonly have lashing holes on the under body used for securing the vehicle during logistics -The lashing holes are intended to be plugged during Pre-Delivery Service (PDS) -The plugs are: oRequired for anti-corrosion purposes oUsually located in the glove box prior to PDS -The number of plugs may be different based on model and production location
T-SB-0073-192019-07-15. Service bulletin. STRUCTURE; EQUIPMENT. TSB: TMNA Accessory Sales and Marketing has developed a Toyota paint protection film (PPF) decal (treated with a specially developed light adhesive) for 2019 ? 2020 model year Toyota vehicles. The decal comes in two sizes (2.8 in. x 8 in. and 4 in. x 8 in.) for small and large hoods and will be applied to the top of PPF for all series at TLS accessory installation facilities. The decal is intended to stay affixed to the film until delivery detail/wash. Just before customer delivery, follow the procedure in this Service Bulletin to remove the decal and any residue left by the adhesive.

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