2018 Lexus IS 300 Technical Service Bulletins

116 technical service bulletins (TSBs) are on record for the 2018 Lexus IS 300. 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.

• 10235220Feb 9, 2023Air bags, Brakes. 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 2015-2020 model year (MY) vehicles that were not previously involved in a Safety Recall or Special Service Campaign related to the low pressure fuel pump.
• 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, 2023Electrical system, Fuel 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…
• 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
• 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.
• 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…
• 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.
• 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.
• 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
• 10190467Mar 30, 2021Brakes, Transmission and drivetrain. 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…
• 10190455Mar 16, 2021Wheels, Steering. 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…
• 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.
• 10181738Sep 8, 2020Equipment, Electrical system. TSB: Some 2016 ? 2020 model year Lexus vehicles with navigation (version less than A1##8020) may exhibit one or more of the following conditions: ?Pink or purple flashing navigation screen. ?Black or blank navigation screen. ?Navigation reset or rebooted intermittently.
• 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…
• 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…
• 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…
• 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
• 10174925Apr 24, 2020Suspension. TSB: Some 2017 ? 2019 model year Lexus vehicles may exhibit one or more of the following conditions: ?Uneven temperature or air flow between the vents ?Little or no air flow from the vent(s) ?Improper MODE control function Some vehicles may also exhibit one or more of the following Diagnostic Trouble Codes (DTCs): ?B1441 ? Air Mix Damper Control Servo Motor Circuit (Front Passenger Side Lower Air Mix) ?B1442 ? Air…
• 10174907Apr 15, 2020Equipment. TT: After performing a battery test using the DCA-8000 battery diagnostic charger and the battery health has been considered a ?Good? condition, the DCA will automatically enter a post-test charging mode. In the post-test charging mode, the DCA analyzes the current state of charge of the battery and automatically begins to charge the battery to a fully charged condition, 100% state of charge. The time required to…
• 10174889Apr 6, 2020Equipment. TSB: OBSOLETE NOTICE April 06, 2020: This bulletin is now obsolete. Please see L-SB-0008-20. Replacement Certification Labels and VIN Plates
• 10174888Apr 6, 2020Equipment. TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin Nos. L-SB-0048-08, PG007-07, PG016-01, PG015-01, PG004-97, PG003-97, PG003-93, PG002-90, L-SB-0048-08, PG007-07, PG016-01, PG015-01, PG004-97, PG003-97, PG003 93, and PG002-90. The aforementioned bulletins are obsolete, and any printed versions should be discarded.
• 10173986Mar 26, 2020Equipment. TT: In certain cases of leaking air conditioning systems, the root cause of the leak is inadvertently overlooked, causing a repeat repair. To improve customer satisfaction and repair A/C system leaks in one dealer visit, Toyota has developed a set of guidelines for evaluating A/C system components.
• 10173971Mar 19, 2020Engine cooling. TT: Some vehicles may continue to experience abnormal blend door noise when changing the HVAC temperature setting after the air conditioner radiator assembly (evaporator case) was replaced for the same condition.
• 10173803Mar 10, 2020Brakes. TSB: Some 2013 ? 2020 model year Lexus AWD F Sport and non-F Sport model vehicles may exhibit a squeal/squeak noise from the front brake pads. For customers who find this characteristic objectionable, an updated shim kit is now available as a service part.
• 10173798Mar 9, 2020Brakes. TSB: Some 2014 ? 2020 model year IS350, 2016 ? 2017 model year IS200t, and 2018 ? 2020 model year IS300 may exhibit a squeal/squeak noise from the front brake pads. This is only applicable on 2WD F Sport vehicles. This condition may be present at city, highway, and/or parking lot speeds. For customers who find this characteristic objectionable, an updated front brake pad kit and shim kit are available.
• 10173793Mar 9, 2020Equipment, Electrical system. 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…
• 10172827Feb 6, 2020Equipment. TSB: February 06, 2020: This bulletin is now obsolete. Please see L-SB-0003-20.
• 10172825Feb 6, 2020Equipment. TSB: Some 2006 ? 2020 model year Lexus vehicles may exhibit odors that naturally occur from the HVAC system and/or related environmental factors. Although there is no way to eliminate these odors, follow the General Procedure in this bulletin to minimize the odors experienced.
• 10169420Nov 8, 2019Equipment. TT: Some vehicles with Pioneer 12.3? (or 10.3? IS) Navigation may encounter an intermittent Pink flash on the display followed by a system reset.
• 10168536Oct 21, 2019Equipment. 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.
• 10168519Oct 11, 2019Steering. 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…
• 10166043Sep 30, 2019Fuel system. TSB: Some 2016 ? 2018 model year GS350, IS300, IS350, RC300, and RC350 vehicles equipped with a 2GR-FKS engine may exhibit a rattle/knocking noise condition at idle from the driver floor board area due to fuel line contact with the body. Follow the Repair Procedure in this bulletin to address this condition.
• 10163731Jul 31, 2019Equipment. TSB: Some 2006 – 2020 model year Lexus vehicles may exhibit odors that naturally occur from the HVAC system and/or related environmental factors. Although there is no way to eliminate these odors, follow the General Procedure in this bulletin to minimize the odors experienced.
• 10164354Jul 18, 2019Electrical system, Equipment. 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…
• 10164328Jul 1, 2019Engine, Equipment, Electrical system. TSB: REVISION NOTICE July 01, 2019 Rev1: G1668 Applicability has been updated to include 2019 ? 2020 model year Lexus vehicles. G2158 The Techstream Preparation and Process Overview sections have been updated. Any previous printed versions of this bulletin should be discarded. SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. L-SB-0021-14. G1765 Applicability has been…
• 10162746Jun 13, 2019Equipment. TSB: REVISION NOTICE June 13, 2019 Rev2: ? Applicability has been updated to include 2018 ? 2019 model year Lexus vehicles. March 13, 2017 Rev1: ? Applicability has been updated to include 2015 ? 2017 model year Lexus vehicles. ? The Parts Information section has been updated. Any previous printed versions of this bulletin should be discarded. Some 2007 ?
• 10162251May 15, 2019Equipment. TT: While performing the retrofit TSB, and creating the USB stick, it is critical that all files that are included in the .zip folder are extracted in the root directory (not in any folders) of the USB drive.
• 10162250May 14, 2019Wheels. TSB: Some 2011 ? 2019 model year Lexus vehicles (including RX350HL, RX450HL, LS460L, and LS600HL) with super chrome wheel finishes may become discolored and/or damaged when aftermarket cleaners, polishes, or brake dust removal products are used on wheels with super chrome finishes. Wheel cleaners and polish that contain acidic substances may damage the clear coat of the wheel, resulting in the undercoating (black)…
• 10159716Apr 16, 2019Equipment. Dealer Daily Message: **UPDATED Dealer Letter Available on TIS** Certain 2018 Model Year LS 500 and LS 500h Certain 2018 Model Year NX 300 and NX 300h Certain 2018 Model Year RX 350L and RX 450hL Certain 2017 ? 2018 Model Year RX 350 and RX 450h Intelligent Clearance Sonar (ICS) System Reprogram Special Service Campaign ? UIO quantities and production ranges have been updated to reflect added vehicles.
• 10159704Apr 8, 2019Equipment. Technical Instructions:
• 10159698Apr 5, 2019Electrical system, Engine. Technical Instructions: Update 4/5/2019: Note added on p. 5. TECHNICAL INSTRUCTIONS FOR SPECIAL SERVICE CAMPAIGN KLA ENGINE ECU SOFTWARE UPDATE CERTAIN: 2018 GS 350 2018 RC300 & RC 350 2018 IS 300 and IS 350 2018 RX 350 and RX 350L
• 10159695Apr 4, 2019Equipment. TSB: Some 2010 ? 2019 model year Lexus 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…
• 10158569Mar 1, 2019Brakes. TSB: Some 2014 ? 2018 model year IS350, 2016 ? 2017 model year IS200t, and 2018 model year 2WD F Sport vehicles with 17-in. rotors may exhibit a squeal/squeak noise from the front brake pads. This condition may be present at city, highway, and/or parking lot speeds. For customers who find this characteristic objectionable, an updated front brake pad kit and shim kit are available.
• 10155236Feb 18, 2019Equipment. TT: This bulletin is regarding best practices when handling navigation systems that use Hard Disc Drive or Micro SD Card memory. 1. First type is generation 6 or 7 which utilizes HDD (Hard Disc Drive). Pioneer models that begin with NXH, have map data, operating system and other information in the Hard Disc Drive. With this system if a radio is being sent back for an exchange. The original Hard Disc Drive needs to…

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