2021 Lexus ES350 Technical Service Bulletins

71 technical service bulletins (TSBs) are on record for the 2021 Lexus ES350. 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.

• 10235225Feb 14, 2023Equipment. OBSOLETE NOTICE February 14, 2023: This bulletin is now obsolete. Please see L-SB-0007-23
• 10235224Feb 14, 2023Equipment. TSB: Some 2020 ? 2022 model year vehicles equipped with 17CY+ Panasonic Audio (versions less than 1226) and Navigation (versions less than 1225 or 1245 with 20 Teammate) may exhibit one or more of the following conditions: ?Navigation reset while entering a destination. ?Voice command does not recognize Starbucks. ??Unable to establish audio connection? message, and Alexa is unable to resume after Android AutoTM…
• 10230361Dec 7, 2022Equipment. TSB: Some 2018 ? 2022 model year Lexus vehicles equipped with the Enform? 2.0 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 expiration…
• 10227910Nov 10, 2022Suspension. TT: Confirm there is an abnormal noise coming from the front of the vehicle, some customers describe the noise as a roaring type noise. Confirm the vehicle meets the following criteria: ?Mileage is under 5,000 miles ?No previous repairs or accidents ?Noise is due to the left/right/both front hubs and bearings If the vehicle meets the above criteria, please recover the front hubs and bearings and submit a Dealership…
• 10217800Jul 21, 2022Visibility (wipers, defrost, mirrors). TSB: Some 2019 ? 2022 model year ES 300h and ES 350 vehicles and 2021 ? 2022 model year ES 250 vehicles may exhibit a whistle or wind noise from the rear left quarter window. An updated repair process has been created to reduce the possibility of this condition. Follow the Repair Procedure in this bulletin to address this condition
• 10224112Jun 20, 2022Engine cooling. TSB: This Service Bulletin provides a procedure to properly perform the Techstream ?Control the Injection Mode? active test in some 2016 ? 2022 model year Lexus vehicles equipped with an FKS engine
• 10220187Jun 20, 2022Engine cooling. TSB: This Service Bulletin provides a procedure to properly perform the Techstream ?Control the Injection Mode? active test in some 2016 ? 2022 model year Lexus vehicles equipped with an FKS engine
• 10215217Jun 7, 2022Equipment, Body and structure. Technical instructions.
• 10224105Jun 6, 2022Electrical system. TSB: Some 2020 model year ES 350, ES 300h, UX 200, and UX 250h vehicles may exhibit one or more of the following conditions: ?Diagnostic Trouble Code (DTC) B15A804 is present in current or history. ?Red SOS LED stays on after bulb check. ?Lexus App does not accept the activation code. ?Lexus App is inoperative. ?SOS call center does not receive the vehicle?s location in a timely manner. ?Lexus App shows an error 42…
• 10220180Jun 6, 2022Electrical system. TSB: Some 2020 model year ES 350, ES 300h, UX 200, and UX 250h vehicles may exhibit one or more of the following conditions: ?Diagnostic Trouble Code (DTC) B15A804 is present in current or history. ?Red SOS LED stays on after bulb check. ?Lexus App does not accept the activation code. ?Lexus App is inoperative. ?SOS call center does not receive the vehicle?s location in a timely manner. ?Lexus App shows an error 42…
• 10220153May 13, 2022Other or unknown. TT: To improve guest support of telematics connected services features, additional resources have been provided in the Service Lane - Knowledge Center.
• 10214363Apr 18, 2022Brakes. TSB: Some 2021 ? 2022 model year ES 250, and 2019 ? 2022 model year ES 300h and ES 350 vehicles may exhibit a brake squeal/squeak noise from the front brake components. For customers who find these characteristics objectionable, an updated fitting kit is now available as a service part. Follow the Repair Procedures in this bulletin to address this condition
• 10214355Apr 13, 2022Equipment. Lexus Safety Recall and Service Campaign - Technician Certification Requirements 4.13.2022
• 10211805Apr 11, 2022Engine cooling, Equipment, Electrical system. TSB: Some 2020 model year ES 350, ES 300h, UX 200, and UX 250h vehicles may exhibit one or more of the following conditions: ?Diagnostic Trouble Code (DTC) B15A804 is present in current or history. ?Red SOS LED stays on after bulb check. ?Lexus app does not accept the activation code. ?Lexus app is inoperative. ?SOS call center does not receive the vehicle?s location in a timely manner. ?Lexus app shows an error 42…
• 10210382Mar 29, 2022Brakes. TSB: Some 2021 ? 2022 model year ES 250, and 2019 ? 2022 model year ES 300h and ES 350 vehicles may exhibit a brake squeal/squeak noise from the front brake components. For customers who find these characteristics objectionable, an updated fitting kit is now available as a service part. Follow the Repair Procedures in this bulletin to address this conditionme 2021 ? 2022 model year ES 250, and 2019 ?
• 10214348Mar 24, 2022Equipment. TT: Vehicle control apps might not operate as expected at times due to preconditions (normal operating parameters) not being established, vehicle settings and/or network/cellular coverage concerns.
• 10210364Mar 3, 2022Electrical system. TT: Vehicle control apps might not operate as expected at times due to preconditions (normal operating parameters) not being established, vehicle settings and/or network/cellular coverage concerns
• 10209023Feb 24, 2022Air bags. TSB: Some 2005 ? 2022 model year Lexus 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.
• 10209006Feb 9, 2022Equipment. TSB: Some 2020 ? 2022 model year Lexus vehicles equipped with Pioneer Audio (version 1804) or earlier may exhibit one or more of the following conditions: ?Abnormal Bluetooth® Audio Mode transition. ?Difficult radio tune knob operation when selecting audio source. Some 2020 ? 2021 model year Lexus vehicles equipped with Pioneer Audio (version 1799) or earlier may exhibit one or more of the following conditions…
• 10207962Jan 28, 2022Electrical system. TSB: This Service Bulletin includes guidelines meant to help determine whether to repair or replace a wire harness assembly based on damage type. This Service Bulletin should be used in conjunction with the applicable model and model year Electronic Wiring Diagram (EWD) and/or Repair Manual.
• 10207957Jan 20, 2022Equipment, Electrical system. TT: Some guests may experience the inability to activate the Lexus Enform Remote app or the Lexus Enform Remote becoming inoperative when attempting to send commands to the vehicle. To simplify the diagnosis of this system and prevent the unnecessary replacement of parts, please refer to the procedure below.
• 10207952Jan 14, 2022Electrical system, Equipment. TT: Some 19CY LG DCM equipped vehicles may not be able to complete the firmware update due to not having an active account or waived services during the trial.
• 10207945Jan 12, 2022Tires, Wheels, Equipment. POL: This consolidated Tire Warranty Guide contains the complete warranty terms for all brands of ground and spare tires currently in use by Lexus. This information must be kept near the point of vehicle sale and be available to any customer that requests it. Customers can find this information on the Owner?s section of Lexus.com. Dealers can locate a copy of this guide on the Claims Processing & Resource Center in…
• 10203554Oct 15, 2021Equipment. 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.
• 10203550Oct 14, 2021Equipment. OBSOLETE NOTICE October 14, 2021: This bulletin is now obsolete. Please see L-SB-0036-21.
• 10203548Oct 14, 2021Equipment. TSB: Some 2020 model year ES 350, ES 300h, UX 200, and UX 250h vehicles may exhibit one or more of the following conditions: ?Diagnostic Trouble Code (DTC) B15A804 is present in current or history. ?Red SOS LED stays on after bulb check. ?Lexus App does not accept the activation code. ?Lexus App is inoperative. ?SOS call center does not receive the vehicle?s location in a timely manner. ?Lexus App shows an error 42…
• 10202453Sep 3, 2021Forward collision avoidance. TT: When used in conjunction with the Repair Manual, these Blind Spot Monitor, Forward Recognition Camera, and Front Millimeter Wave Radar tips leverage SSTs and readily available tools to support target placement in varying shop environments.
• 10202451Sep 3, 2021Equipment. TSB: Some 2020 ? 2021 model year vehicles equipped with 17CY+ Panasonic Navigation (version 1150) or earlier and Audio (version 1163) or earlier may exhibit one or more of the following conditions: ?Poor map screen touch operation. ?Navigation system reset. ?Climate temperature control difficult to operate. ??Waiting for the Beep? message displayed, voice recognition does not start when pressing the push to talk…
• 10201401Jul 26, 2021Equipment. TSB: Some 2007 ? 2022 model year Lexus vehicles in particular geographic areas may exhibit a condition where the HVAC evaporator drain hose has become obstructed with an insect nest. An insect repellent drain hose tip (ARINIX® Tip) is available to help minimize future occurrences of this environmental condition. For some models, a new drain hose is required to properly fit the ARINIX® Tip. Follow the procedures in…
• 10201394Jul 20, 2021Engine cooling. TSB: This Service Bulletin provides a procedure to properly perform the Techstream ?Control the Injection Mode? active test in some 2016 ? 2021 model year Lexus vehicles equipped with an FKS engine.
• 10201374Jul 12, 2021Equipment. 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.
• 10198149May 24, 2021Equipment. Pol: updates to the 2014-2021 lexus universal flat rate manual
• 10190468Mar 31, 2021Air bags. Lexus Safety Recall and Service Campaign - Technician Certification Requirements
• 10190458Mar 16, 2021Back-over prevention (rear camera), Electrical system. TT: Vehicle control apps might not operate as expected at times due to preconditions (normal operating parameters) not being established, vehicle settings and/or network/cellular coverage concerns.
• 10190457Mar 16, 2021Equipment. 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.
• 10190455Mar 16, 2021Steering, Wheels. TT: Some customers may encounter Bluetooth® connectivity concerns such as: ?Difficulty to pair the phone. ?Intermittent Bluetooth® failure to connect to the vehicle when first turning on the vehicle. ?Various Bluetooth® Audio functions are no longer functioning with customer?s phone such as ability to change the track using the steering wheel controls. These concerns can be caused by changes made on the customer?s…
• 10188916Feb 9, 2021Transmission and drivetrain. TSB: Some 2021 model year ES 350 vehicles equipped with a UA80E transmission may exhibit a whine or grind noise from the transmission. This condition may be caused by an issue with the front carrier assembly pinion shafts. Follow the Repair Procedure in this bulletin to address this condition.
• 10187268Jan 25, 2021Electrical system. TSB: Some 2020 model year ES 350, ES 300h, UX 200, and UX 250h vehicles may exhibit one or more of the following conditions: ?Diagnostic Trouble Code (DTC) B15A804 is present in current or history. ?Red SOS LED stays on after bulb check. ?Lexus App does not accept the activation code. ?Lexus App is inoperative. ?SOS call center does not receive the vehicle?s location in a timely manner. ?Lexus App shows an error 42…
• 10185774Dec 10, 2020Brakes. TSB: Some 2020 ? 2021 model year Lexus vehicles equipped with Navigation (version 1060) or earlier and Audio (version 1060) or earlier may exhibit one or more of the following conditions: ?Display screen distortion/pixilation. ?iOS device would not connect until disconnecting and reconnecting USB cable. ?iOS device would not connect until ACC OFF > ON.
• 10184551Nov 13, 2020Equipment, Electrical system. TT: Some vehicles may experience an issue related to the DCM, the following information is consolidating the available diagnostic information in one document.
• 10182961Oct 30, 2020Equipment, Visibility (wipers, defrost, mirrors). TT: HVAC drain tube is found to blocked/clogged.
• 10183275Oct 20, 2020Back-over prevention (rear camera). 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.
• 10183269Oct 16, 2020Fuel system. TSB: This Service Bulletin provides updated non-electric water pump leak inspection and diagnostic tips for some 2008 ? 2021 model year Lexus vehicles.
• 10182979Oct 9, 2020Equipment. TSB: 2021 model year Lexus vehicles are equipped with driver side floor mat retaining hooks (clips) to secure the floor mat in the correct position. In addition, some models may also utilize retaining hooks (clips) for passenger side and rear seat floor mats.
• 10182970Oct 6, 2020Electrical system. TT: A 12-volt battery discharged and/or dead condition can be due to multiple causes. In order to properly diagnose and determine the root cause it?s important to follow a structured process to identify any contributing issues and determine the proper remedy.
• 10181781Sep 30, 2020Equipment, Electrical system. TSB: Some 2020 model year ES 350, ES 300h, UX 200, and UX 250h vehicles may exhibit one or more of the following conditions: ?Diagnostic Trouble Code (DTC) B15A804 is present in current or history. ?Red SOS LED stays on after bulb check. ?Lexus App does not accept the activation code. ?Lexus App is inoperative. ?SOS call center does not receive the vehicle?s location in a timely manner. ?Lexus App shows an error 42…
• 10181748Sep 11, 2020Electrical system, Equipment. TSB: Some 2021 model year Lexus vehicles are equipped with an eOwner?s Manual (eOM), which is installed into the head unit while the vehicle is in transit. During Pre-Delivery Service (PDS), follow the instructions contained within the Software Confirmation section of this bulletin to ensure that the software is installed correctly. If it is found that the software is not installed correctly, proceed to the…
• 10181747Sep 11, 2020Electrical system, Equipment. TSB: A battery in a stored vehicle is subject to conditions that can reduce its performance and service 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, Lexus does not provide battery warranty coverage for…
• 10181743Sep 9, 2020Electrical system, Equipment. TSB: 2021 model year Lexus vehicles are equipped with factory-installed XM Satellite Radio, including a 90-day free customer trial. As part of the Pre-Delivery Service (PDS) process, ensure that the XM Satellite Radio is activated and ready for use.
• 10181740Sep 8, 2020Wheels, Tires. 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 that the tires remain on the vehicle in the same location and in the same direction of rotation. Follow the Tire Positioning Procedure in this bulletin to ensure that the original tires stay in…

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