2019 Lexus NX300 Technical Service Bulletins

101 technical service bulletins (TSBs) are on record for the 2019 Lexus NX300. 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.

• 10235219Feb 9, 2023Fuel system. DL: On December 20, 2022, a settlement of claims for certain low pressure fuel pumps was approved by the federal court. The settlement includes Lexus?s agreement to provide a Customer Support Program for certain 2013-2020 model year (MY) vehicles originally equipped with low pressure fuel pumps repaired under Safety Recall 20LA01 or Special Service Campaign 21LC01.
• 10235215Feb 9, 2023Fuel system, Electrical system. TSB: Some 2013 ? 2020 model year Lexus vehicles may exhibit a hard start and/or MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs): ?DTC P0171 and/or P0174 (System Too Lean Bank 1/Bank 2) ?DTC P0087 Fuel Rail / System Pressure ? Too Low Techstream data list analysis may reveal positive fuel trims including a no pressure condition verified by a manual fuel pressure gauge. Follow the…
• 10230363Dec 8, 2022Equipment. OBSOLETE NOTICE December 08, 2022: This bulletin is now obsolete. Please see L-SB-0057-22
• 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…
• 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.
• 10214355Apr 13, 2022Equipment. Lexus Safety Recall and Service Campaign - Technician Certification Requirements 4.13.2022
• 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.
• 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.
• 10207953Jan 18, 2022Equipment, Body and structure, Electrical system. TSB: Some 2018 ? 2020 model year Lexus vehicles with audio (version 1065) or earlier, and navigation (version 1065) or earlier may exhibit one or more of the following conditions: ?Apple CarPlay® intermittently inoperative. ?Voice recognition does not start when ?Waiting for the beep? is displayed. ?Audio does not resume after listening to a voicemail. ?Abnormal screen appearance during Apple CarPlay®. ?Voice…
• 10207945Jan 12, 2022Equipment, Tires, Wheels. 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…
• 10206532Dec 21, 2021Equipment. TSB: Some 2018 ? 2020 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 head unit?s…
• 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.
• 10202458Sep 10, 2021Electrical system. TSB: Some 2018 ? 2020 model year NX 300/300h and 2019 model year UX 200/250h vehicles equipped with a Continental DCM may exhibit one or more of the following conditions: ?SOS button lights inoperative. ?Bluetooth® microphone and voice command inoperative. ?Right front audio speakers are inoperative. ?Connected services inoperative. ?Remote start inoperative. A replacement telematics transceiver assembly is now…
• 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.
• 10202446Sep 1, 2021Equipment. TT: NOTE: This document ONLY applies to 2020 ES & 2020 NX vehicles built before 10/01/2019. (Vehicles built after that date use AT&T WiFi, not Verizon) Head unit telematics services become inoperative after DCM replacement and activation if the guest has an ACTIVE Verizon Wi-Fi pre-paid subscription. Head unit services include Wi-Fi, Destination Assist, Dynamic Navigation, and Dynamic Voice Recognition. Verizon is…
• 10201301Jul 27, 2021Electrical system, Equipment. TSB: Some 2019 ? 2020 model year Lexus vehicles equipped with Pioneer Audio (version earlier than 1102) may exhibit one or more of the following conditions: ?Black CarPlay® Display from Pioneer Audio. ?Low volume from CarPlay® FaceTime audio calls. Some 2019 model year Lexus vehicles equipped with Pioneer Audio (version earlier than 1007) may exhibit one or more of the following conditions: ?Delayed mute operation…
• 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…
• 10201353Jul 6, 2021Transmission and drivetrain. TT: Some 2015-2021 model year vehicles equipped with Dynamic Torque Control AWD system may experience a ?Noise? or ?Abnormal Operation? condition from the rear differential front coupling. In some cases, even an ?AWD System Message? with or without a DTC may be present with or without other conditions present.
• 10198149May 24, 2021Equipment. Pol: updates to the 2014-2021 lexus universal flat rate manual
• 10198133May 13, 2021Equipment. TSB: Some 2018 ? 2020 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 head unit?s…
• 10190468Mar 31, 2021Air bags. Lexus Safety Recall and Service Campaign - Technician Certification Requirements
• 10190467Mar 30, 2021Transmission and drivetrain, Brakes. TSB: Some 2015 ? 2017 model year NX 200t, 2016 ? 2017 model year GS 200t, IS 200t, and RC 200t, 2018 ? 2019 model year GS 300, and 2018 ? 2020 model year IS 300, NX 300, and RC 300 vehicles equipped with an 8AR-FTS engine may exhibit a MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs): ?Cylinder Misfire ? P030000, P030027, P030085, P030100, P030200, P030300, P030400. ?Air-Fuel Ratio…
• 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…
• 10190452Mar 12, 2021Electrical system, Transmission and drivetrain. TSB: Some 2015 ? 2017 NX 200t and 2018 ? 2020 NX 300 model year vehicles may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P125D71 (Fuel Flow Control Valve Performance Actuator Stuck) present. The Multi-Information Display (MID) may tell the customer ?reduced engine power ? take vehicle to nearest dealer.? The Engine Control Module (ECM) (SAE term: Powertrain Control Module/PCM) logic has been…
• 10185787Dec 11, 2020Equipment. OBSOLETE NOTICE December 11, 2020: This bulletin is now obsolete. Please see L-SB-0043-20.
• 10185778Dec 11, 2020Body and structure, Back-over prevention (rear camera), Equipment. TSB: Some 2018 ? 2020 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 head unit?s…
• 10184550Nov 13, 2020Equipment. TT: NOTE: This document ONLY applies to 2020 ES & 2020 NX vehicles built before 10/01/2019. (Vehicles built after that date use AT&T WiFi, not Verizon) Head unit telematics services become inoperative after DCM replacement and activation if the guest has an ACTIVE Verizon Wi-Fi pre-paid subscription. Head unit services include Wi-Fi, Destination Assist, Dynamic Navigation, and Dynamic Voice Recognition. Verizon is…
• 10182961Oct 30, 2020Visibility (wipers, defrost, mirrors), Equipment. TT: HVAC drain tube is found to blocked/clogged.
• 10183291Oct 27, 2020Equipment. TT: NOTE: This document ONLY applies to 2020 ES & 2020 NX vehicles built before 10/01/2020. (Vehicles built after that date use AT&T WiFi, not Verizon) Head unit telematics services become inoperative after DCM replacement and activation if the guest has an ACTIVE Verizon Wi-Fi Pre-Paid subscription. Head unit services include Wi-Fi, Destination Assist, Dynamic Navigation, and Dynamic Voice Recognition. Verizon is…
• 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.
• 10179785Aug 26, 2020Equipment. TSB: Some 2018 ? 2020 model year NX 300/300h and 2019 model year UX 200/250h vehicles equipped with a Continental DCM may exhibit one or more of the following conditions: ?SOS button lights inoperative ?Bluetooth® microphone and voice command inoperative ?Right front audio speakers are inoperative ?Connected services inoperative ?Remote start inoperative A replacement telematics transceiver assembly is now…
• 10179784Aug 26, 2020Transmission and drivetrain, Fuel system, Other or unknown, Electrical system. TSB: Some 2015 ? 2017 NX 200t and 2018 ? 2020 NX 300 model year vehicles may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P125D71 (Fuel Flow Control Valve Performance Actuator Stuck) present. Some vehicles may also enter ?limp mode? and the Multi-Information Display (MID) will tell the customer ?reduced engine power ? take vehicle to nearest dealer.?
• 10179741Aug 26, 2020Equipment, Engine. TSB: Some 2018 ? 2020 model year NX 300/300h and 2019 model year UX 200/250h vehicles equipped with a Continental DCM may exhibit one or more of the following conditions: ?SOS button lights inoperative ?Bluetooth® microphone and voice command inoperative ?Right front audio speakers are inoperative ?Connected services inoperative ?Remote start inoperative A replacement telematics transceiver assembly is now…
• 10179740Aug 26, 2020Electrical system, Transmission and drivetrain, Fuel system, Other or unknown…. TSB: Some 2015 ? 2017 NX 200t and 2018 ? 2020 NX 300 model year vehicles may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P125D71 (Fuel Flow Control Valve Performance Actuator Stuck) present. Some vehicles may also enter ?limp mode? and the Multi-Information Display (MID) will tell the customer ?reduced engine power ? take vehicle to nearest dealer.?
• 10179771Aug 13, 2020Equipment, Electrical system. TT: Panasonic exchange Multimedia Extension Unit (MEU) and Display Control Unit (DCU) parts are shipped with Apple CarPlay software already installed. If the updated MEU (Navigation) or DCU (Radio) exchange part is installed on a vehicle that has never been updated, a software mismatch can occur, and an error message may be displayed.
• 10179727Aug 13, 2020Equipment, Electrical system. TT: Panasonic exchange Multimedia Extension Unit (MEU) and Display Control Unit (DCU) parts are shipped with Apple CarPlay software already installed. If the updated MEU (Navigation) or DCU (Radio) exchange part is installed on a vehicle that has never been updated, a software mismatch can occur, and an error message may be displayed.
• 10179725Aug 13, 2020Equipment, Electrical system. TSB: Some 2018 ? 2020 model year Lexus vehicles with Panasonic navigation (version 1050) or earlier may exhibit one or more of the following conditions: ?The analog clock shows one hour ahead, then immediately adjusts back one hour after ACC ON. ?No Sound and Reset when playing Spotify via Bluetooth Audio. Some 2018 ?
• 10179766Aug 12, 2020Equipment, Electrical system. TSB: Some 2018 ? 2020 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 head unit?s…
• 10179722Aug 12, 2020Equipment, Electrical system. TSB: Some 2018 ? 2020 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 head unit?s…
• 10179697Aug 5, 2020Transmission and drivetrain. TSB: Vehicles may display evidence of a fluid leak or fluid seep from powertrain components. This bulletin explains how to determine the differences between a fluid leak versus a fluid seep. Cases that are determined to be a ?leak? should be repaired accordingly and will be covered under warranty if applicable. Cases that are determined to be a ?seep? should be documented on the repair order and inspected at the…
• 10179694Aug 5, 2020Equipment. TT: HVAC drain tube is found to blocked/clogged.
• 10179601Aug 5, 2020Transmission and drivetrain, Engine. TSB: Vehicles may display evidence of a fluid leak or fluid seep from powertrain components. This bulletin explains how to determine the differences between a fluid leak versus a fluid seep. Cases that are determined to be a ?leak? should be repaired accordingly and will be covered under warranty if applicable. Cases that are determined to be a ?seep? should be documented on the repair order and inspected at the…
• 10179598Aug 5, 2020Equipment. TT: HVAC drain tube is found to blocked/clogged.
• 10178535Jul 24, 2020Visibility (wipers, defrost, mirrors). TT: Some customers/dealers may experience a condition where the front door window glass can easily be scratched when an abrasive product is used to clean the windows.
• 10178788Jul 20, 2020Engine, Electrical system. 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…
• 10177780Jun 23, 2020Wheels. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin Nos. ST004-01, SU001-08, and L-SB-0174-08. The aforementioned bulletins are obsolete, and any printed versions should be discarded. Be sure to review the entire content of this service bulletin before proceeding. This Service Bulletin provides best practice procedures for vehicle pulling complaint, diagnosis, and repair…
• 10176283May 1, 2020Equipment. Safety Recall and Service Campaign - Technician Certification Requirements
• 10174923Apr 23, 2020Equipment. 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 L-SB-0015-20 and other Service Bulletin publications to ensure customers receive their vehicles in a fresh and well maintained condition.

← All problems reported for the 2019 Lexus NX300