Service bulletins for the 2020 Toyota Tundra
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.
159 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| T-TT-0615-20 Rev | 2020-09-14. Service bulletin. ENGINE. TT: The Toyota Quality group is looking to better understand our customers expectation regarding vehicle drivability. Specifically, we are looking at vehicle surge/hesitation condition (inconsistent acceleration) and would like to recover detailed customer voice and vehicle data. |
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| T-TT-0615-20 Rev | 2020-09-14. Service bulletin. EQUIPMENT; ENGINE. TT: The Toyota Quality group is looking to better understand our customers expectation regarding vehicle drivability. Specifically, we are looking at vehicle surge/hesitation condition (inconsistent acceleration) and would like to recover detailed customer voice and vehicle data. |
| T-TT-0553-19 Rev | 2020-08-24. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. TT: The new DCA-8000 Diagnostic Charger may cause your facility?s Ground Fault Circuit Interrupter (GFCI) breaker to trip. A GFCI breaker can be tripped for various reasons, one of the reasons may be related to the DCA-8000. We are investigating this issue to determine the root cause. Other reasons the GFCI breaker may trip ?Circuit demand is too high for GFCI rating ?Worn out GFCI internal contacts ?Improper installation or wiring of GFCI breaker |
| T-SB-0073-19 Obs | 2020-08-17. Service bulletin. STRUCTURE:BODY. OBSOLETE NOTICE July 31, 2020: This bulletin is no longer applicable and is now obsolete. |
| T-TT-0468-17 Rev | 2020-08-17. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. TT: HVAC drain tube is found to be blocked/clogged. |
| T-TT-0552-19 Rev | 2020-08-03. Service bulletin. ENGINE AND ENGINE COOLING. TT: Repairing a 1234YF HVAC system on a gas powered (non-hybrid) Toyota vehicle may require additional compressor oil to complete the repairs. The various 1234YF compressor oils (ND-12, PS-D1, or VC100YF) are available through the Toyota Approved Dealer Equipment website. |
| T-TT-0615-20 Rev | 2020-07-27. Service bulletin. ENGINE. TT: The Toyota Quality group is looking to better understand our customers expectation regarding vehicle drivability. Specifically, we are looking at vehicle surge/hesitation condition (inconsistent acceleration) and would like to recover detailed customer voice and vehicle data. |
| T-TT-0611-20 | 2020-06-22. Service bulletin. EQUIPMENT; ELECTRICAL 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-TT-0606-20 | 2020-05-11. Service bulletin. EQUIPMENT. TT: Due to the challenges caused by the COVID-19 virus threat, some dealers are experiencing reduced traffic into their stores and causing dealer stock to age. Due to this situation, dealers are reminded and recommended to follow the Long-Term Vehicle Storage Guidelines outlined in T-SB-0009-19 and other Service Bulletin publications to ensure customers receive their vehicles in a fresh and well maintained condition Please ensure that both Sales and Service at your dealership are aware of these guidelines and are following the recommended maintenance and storage processes and procedures to ensure the highest customer satisfaction with their new vehicle purchase. |
| T-TT-0537-19_Rev | 2020-05-11. Service bulletin. VISIBILITY; LANE DEPARTURE. TT: The blind spot monitor (BSM) sensor angle inspection is used to confirm that the BSM sensor is within the specified angle before performing axis beam adjustment. When used in conjunction with the repair manual, these BSM tips leverage SSTs and readily available tools to support sensor angle confirmation in varying shop environments. |
| T-SB-0032-20 | 2020-05-11. Service bulletin. EQUIPMENT. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin Nos. PG021-88, PG015-89, PG0015-90, PG002-91, PG002-93, PG005-97, PG007-01, PG007-07, PG006-01, PG004-97, T-SB-0144-08, and T-SB-0304-17. The aforementioned bulletins are obsolete, and any printed versions should be discarded. Replacement certification labels (the vinyl label installed on the driver door or door post) and VIN plates (the metal plate riveted to dashboard) (see Figure 1) for most 1979 ? 2020 model year vehicles may be available provided the requests meet the criteria listed in this Service Bulletin. Follow the Procurement Procedure in this bulletin to request a replacement certification label or VIN plate. |
| T-SB-0042-20 | 2020-05-11. Service bulletin. STRUCTURE. TSB: Some 2018 ? 2020 model year Sequoia and Tundra vehicles equipped with a sliding sunroof or moonroof may exhibit a binding, seizing, or sticking condition when attempting to open or close. In some cases, a clicking noise is present when the sliding sunroof or moonroof is stuck open or closed. This condition may be caused by rusted or seized sliding roof cables. Follow the Repair Procedure in this bulletin to address this condition. |
| T-SB-0030-20 | 2020-04-20. Service bulletin. STRUCTURE. TSB: Some 2007 ? 2020 model year Tundra vehicles may exhibit corrosion or paint blistering on the front and/or rear lower door sill(s). Follow the Repair Procedure in this bulletin to address this condition. |
| T-SB-0161-19_Rev | 2020-04-20. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. Some 2020 model year vehicles equipped with Audio Plus (version 1021) or Premium Audio (version 1021) or earlier may exhibit one or more of the following conditions: ?Barge in function defaulted to OFF ?Limited phone book grammar ?Difficult Hand Free operation ?Abnormal Electronic Owner?s Manual operation ?Music does not automatically resume when using Android Auto? ?Cover art is not displayed ?Vehicle position isn?t sent to Destination Assist server ?System inoperative after using the return button when using voice recognition Some 2020 model year vehicles equipped with Audio Plus (version 1035) or Premium Audio (version 1035) or earlier may exhibit one or both of the following conditions: ?Abnormal screen play while using Apple CarPlay® (primarily during phone calls) ?Poor sound quality during phone calls while using Apple CarPlay® Some 2020 model year vehicles equipped with Audio Plus (version 1047) or Premium Audio (version 1047) or earlier may exhibit one or more of the following conditions: ?USB audio does not resume after ignition cycle ?Intermittent rebooting ?Bluetooth disconnecting during a phone call when using Apple CarPlay® ?Intermittent screen freezing ?Navigation intermittently will not boot up ?Home Screen Audio widget is blank after a Destination Assist call ?Song, artist, or album data missing ?Abnormal clock operation ?Apple CarPlay® intermittently inoperative ?Radio takes a long time to boot up A software update is now available to address these conditions. Follow the Software Update Procedure in this bulletin to update the software. |
| T-SB-0146-19_Rev | 2020-04-20. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Some 2020 model year Tundra vehicles equipped with Audio Plus (version 1186) or earlier may exhibit one or more of the following conditions: ?WiFi intermittently inoperative ?DTC B15DB present ?Changing the Auto Relock Timer setting also changes the Remote 2-Press unlock setting Some 2020 model year Tundra, RAV4, RAV4 Hybrid, Highlander, or Highlander Hybrid vehicles equipped with Audio Plus (version 1210), or Premium Audio (version 1196) or earlier may exhibit one or more of the following conditions: ?Intermittent screen flashing ?Intermittent ?Destination Assist Unavailable? pop-up message ?Intermittent blank screen ?Bluetooth® intermittently disconnects ?Abnormal radio playback after Destination Assist Call ??There is no playable data? pop-up message when using USB Audio ?Unable to answer phone calls when using Apple CarPlay® ?Clock displays the incorrect time ?Intermittent rebooting ??The software version doesn?t correspond? pop-up is intermittently displayed ?Intermittent black screen when using projection navigation ?Abnormal noise after ACC OFF/ON when using AM mode and high volume ??Please connect USB? pop-up message when USB is already connected A software update is now available to address these conditions. Follow the Software Update Procedure in this bulletin to update the software. |
| T-SB-0026-20 | 2020-04-20. Service bulletin. AIR BAGS; FORWARD COLLISION AVOIDANCE. TSB: All 2018 ? 2021 model year Sequoia, Tacoma, and Tundra vehicles and All 2020 ? 2021 model year 4Runner vehicles are equipped with Pre-collision System (PCS) and Dynamic Radar Cruise Control (DRCC) as part of the Toyota Safety Sense (TSS) package. The PCS and DRCC systems are designed to help mitigate a potential collision and maintain a pre-determined traveling distance. It is recommended to disable the PCS and DRCC systems on vehicles that have been modified (ride height, oversized wheels/tires, brush bars, etc.) in a way that potentially disrupts the functionality of these systems. Vehicle owner?s written consent is required before performing the calibration to permanently disable the PCS and DRCC systems. Follow the Repair Procedure in this bulletin to disable the PCS and DRCC systems. |
| Toyota Safety Re | 2020-04-20. Service bulletin. EQUIPMENT. Safety Recall and Service Campaign - Technician Certification Requirements |
| T-SB-0009-19_Rev | 2020-04-13. Service bulletin. EQUIPMENT; SERVICE BRAKES; ELECTRICAL SYSTEM. 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-0008-19_Rev | 2020-04-13. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. TSB: An initialization procedure is required to activate the Entune? 3.0 App Suite Connect for Audio, Audio Plus, and Premium Audio head units before they are used for the first time on new vehicles. The initialization procedure may also be performed under other circumstances, such as following a head unit replacement or after the customer?s personal settings are erased. The initialization procedure requires between 3 and 15 minutes to complete, depending on file size, cellular connection speed, and other factors. Following the initialization procedure, individual Entune? 3.0 apps may periodically update through an over-the-air update system. Updates are optional or mandatory. The update procedure will take approximately 1 minute for each app requiring an update. Follow the Initialization/Update Procedure in this bulletin to perform the initialization and app updates. |
| T-TT-0588-19_Rev | 2020-03-30. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. TT: Some 2020 model year vehicles may display abnormal Safety Connect operation during PDS or after replacement due to DCM activation issues. If there are no DTCs present and after the initial SOS light flashing sequence after ignition on, neither the red nor green light stays on in the overhead console determine if the vehicle is in shipping mode. To determine if a vehicle is experiencing this condition, connect a Techstream and navigate to: Telematics-Data List - ?Telematics Activation Status?. If this value is displayed as ?Shipping?, continue to the Shipping Mode recommendations below, and do not create a TAS case. |
| T-TT-0575-19_Rev | 2020-03-30. Service bulletin. EQUIPMENT:ELECTRICAL. TT: Some new vehicles may experience the SOS/Telematics functions inoperative during Pre-Delivery Inspection or after replacement. The following procedure outlines the process to activate the DCM with the cellular network. |
| T-TT-0588-19_Rev | 2020-03-30. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. TT: Some 2020 model year vehicles may display abnormal Safety Connect operation during PDS or after replacement due to DCM activation issues. If there are no DTCs present and after the initial SOS light flashing sequence after ignition on, neither the red nor green light stays on in the overhead console determine if the vehicle is in shipping mode. To determine if a vehicle is experiencing this condition, connect a Techstream and navigate to: Telematics-Data List - ?Telematics Activation Status?. If this value is displayed as "Shipping", continue to the Shipping Mode recommendations below, and do not create a TAS case. |
| T-TT-0594-20_Rev | 2020-03-30. Service bulletin. EQUIPMENT:ELECTRICAL. TT: Some vehicles equipped with Dynamic Navigation may experience a pop-up message notifying them that their map update service will end soon. The date that is shown could be more than one year in the future. This does not indicate any issues with the vehicle, and is only informing the user of the expiration date. |
| Safety Recall an | 2020-03-30. Service bulletin. EQUIPMENT. Safety Recall and Service Campaign - Technician Certification Requirements |
| T-SB-0095-19_Rev | 2020-03-30. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE. TSB: Pre-Delivery Service (PDS) is a critical step in satisfying our dealership's 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. - Interior cleanliness. - Proper function of mechanical systems. Customer retention and proper maintenance of vehicles are and have always been a major focus for Toyota. To help remind customers that regular service is essential to the proper maintenance of the vehicle, dealers are required to install a service reminder sticker before delivery. By doing this, customers will be reminded to return to your dealership for service. Your current service reminder sticker may be used. (See PDS Check Sheet "Final Inspection and Cleaning.") A new PDS Check Sheet has been developed for the 2020 model year Tundra. Some check points have been added, expanded, or clarified. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.