2023 Lexus ES Hybrid TSBs

This bulletin should be used in conjunction with the applicable model and model year Repair Manual while performing the battery rescue charge. The GRX-5100 should be used wherever the Repair Manual references the Toyota Hybrid System (THS) charger. The charging instructions for the GRX-5100 have been added to the Repair Manual for certain model years and models. If the model you are looking for is not listed in this Service Bulletin, please refer to the Repair Manual for the applicable charging instructions.

This bulletin should be used in conjunction with the applicable model and model year Repair Manual while performing the battery rescue charge. The GRX-5100 should be used wherever the Repair Manual references the Toyota Hybrid System (THS) charger.

ES300H, ES350, LS500, RX350, RX350H, RX500H, RZ450E, UX250H

This results in all connected services becoming inoperative, including Safety Connect features such as the SOS emergency calling feature.

This results in all connected services becoming inoperative, including Safety Connect features such as the SOS emergency calling feature.

ES300H, ES350, LS500, RX350, RX350H, RX500H, RZ450E, UX250H

This results in all connected services becoming inoperative, including Safety Connect features such as the SOS emergency calling feature.

This results in all connected services becoming inoperative, including Safety Connect features such as the SOS emergency calling feature.

1. Refer to the TAS 21MM Diagnostics Pre-Call Worksheet (PCW) on the TAS case creation page. The following steps will provide some answers for the PCW. 2. Start with the vehicle running outside for 5-10 minutes in an area with no overhead obstructions. a. Enter the radio Service Menu (diagnostic mode) using Techstream or GTS+, or the manual swiping method as outlined in the Repair Manual. b. Once the Service Menu is shown, the Function Check/Setting, and Product information buttons will be used. 3. Select the Product Information button to display radio and DCM registration details. 4. Accurate GNSS Date and Time is needed for the QR code to work. From the Service Menu select Function Check/Setting > System Sensors Check to display GNSS details.

1. Refer to the TAS 21MM Diagnostics Pre-Call Worksheet (PCW) on the TAS case creation page. The following steps will provide some answers for the PCW. 2. Start with the vehicle running outside for 5-10 minutes in an area with no overhead obstructions. a. Enter the radio Service Menu (diagnostic mode) using Techstream or GTS+, or the manual swiping method as outlined in the Repair Manual. b. Once the Service Menu is shown, the Function Check/Setting, and Product information buttons will be used. 3. Select the Product Information button to display radio and DCM registration details. 4. Accurate GNSS Date and Time is needed for the QR code to work. From the Service Menu select Function Check/Setting > System Sensors Check to display GNSS details.

vehicles equipped with Lexus Multimedia (version 1020 or earlier). This update provides improved performance and capability for the following: ?User profile configuration and display. ?Cloud Navigation and Intelligent Voice Assistant. ?Mobile device connectivity. ?On-screen display and system settings/configuration. ?Security enhancements. A head unit software update is now available for 2022 LX 600, NX 250, NX 350, NX 350h, and NX 450h+ vehicles; and 2023 ES 250, ES 300h, ES 350, and UX 250h vehicles equipped with Lexus Multimedia (earlier than version 1040). This software update includes the following improvements: ?Cloud navigation. ?Intelligent assistant voice recognition. ?Showing and controlling explicit audio content. ?User interface. ?Bluetooth. ?Bug fixes. This software update removes the following feature: ?Hybrid radio. A head unit software update is now available for 2023 model year LX 600, NX 250, NX 350, NX 350h, and NX 450h+ vehicles equipped with Lexus Multimedia (version 1040 or earlier). This software update provides improved performance and capability for the following: ?User profile. ?Over-the-air (OTA) notifications. ?Ability to search during a call. ?Bug fixes settings/configuration. ?Security enhancements. A head unit software update is now available for 2022 ? 2023 model year LX 600 vehicles; 2023 ? 2024 model year ES 250, ES 300h, ES 350, RX 350, RX 350h, RX 450h+, RX 500h, and UX 250h vehicles; 2022 ? 2024 model year NX 250, NX 350, NX 350h, and NX 450h+ vehicles; 2023 model year LS 500 and LS 500h vehicles; 2024 model year LC 500, LC 500C, and LC 500h vehicles equipped with Lexus Multimedia (earlier than version 2050). This software update includes the following improvements: ?User interface design. ?Intelligent assistant. ?Navigation lane guidance. ?Phone book se

After performing a Health Check, one or both of the following Diagnostic Trouble Codes (DTCs) may be present: ?P1C8449 ? (High Voltage Power Resource Circuit Short during Ready ON) ?P300449 ? (High Voltage Power Resource Circuit Short during Pre-Charge) Follow the Repair Procedure in this bulletin to address this condition.

equipped with Lexus Multimedia (version 1020 or earlier). This update provides improved performance and capability for the following: ?User profile configuration and display. ?Cloud Navigation and Intelligent Voice Assistant. ?Mobile device connectivity. ?On-screen display and system settings/configuration. ?Security enhancements. A head unit software update is now available for 2022 LX 600, NX 250, NX 350, NX 350h, and NX 450h+ vehicles; and 2023 ES 250, ES 300h, ES 350 and UX 250h vehicles equipped with Lexus Multimedia (earlier than version 1040). This software update includes the following improvements: ?Cloud navigation. ?Intelligent assistant voice recognition. ?Showing and controlling explicit audio content. ?User interface. ?Bluetooth. ?Bug fixes. The software update removes the following feature: ?Hybrid radio. Vehicle operators can perform this update directly by accepting the on-screen notification, advising the software update is available, or by locating the software update from the Settings menu and initiating the available update. The release notes text below will be displayed to the customer: ?This software update includes the following improvements: Cloud navigation, Intelligent assistant voice recognition, Showing and controlling explicit audio content, User interface, Bluetooth, Bug fixes. It removes the following feature: Hybrid radio.? If it is necessary to perform the software update for a customer, follow the software update procedures in this bulletin. This is a phased rollout, which means that as time progresses, more vehicles will receive the update notification and ability to update the head unit. This timing will vary by location and may not display for every vehicle in one location at the same day/time.

These high voltages are dangerous and can cause personal injury, severe burns, electric shock, and death if proper safety precautions are NOT followed. Be sure to carefully review ALL applicable Repair Manual procedures BEFORE performing service. Lexus strongly recommends that Service Technicians complete Master Certification status before performing any service repair work on high-voltage systems.

?Auxiliary (12V) battery If the hybrid vehicle or battery electric vehicle is placed into storage, the State-Of-Charge (SOC) of its HV battery and auxiliary battery will gradually decrease. To prevent the auxiliary battery from becoming discharged during storage, proper maintenance is necessary.

The hybrid system circuits operate with up to 650V. These high voltages are dangerous and can cause personal injury, severe burns, electric shock, and death if proper safety precautions are NOT followed. Be sure to carefully review ALL applicable Repair Manual procedures BEFORE performing service. As a policy, and to help ensure safety, no Lexus dealership technician is qualified to service or repair hybrid vehicles until Lexus course L071 is successfully completed.

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 and treat the interior of the vehicle for odor remediation. Refer to the applicable model and model year 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.

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.

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 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 and treat the interior of the vehicle for odor remediation. Refer to the applicable model and model year 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.

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 and treat the interior of the vehicle for odor remediation. Refer to the applicable model and model year 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.

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 and treat the interior of the vehicle for odor remediation. 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.

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 and treat the interior of the vehicle for odor remediation. 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.

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 Lexus vehicles is continuously being improved, it remains the dealers responsibility to protect and maintain the quality of the vehicles paint finish after receipt at the dealership prior to the 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.

This material protects from acid rain, environmental fallout, and rail contamination. Follow the Removal Procedure in this bulletin to remove the RapgardTM protective film within 90 days from initial application. SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. L-PG004-94. The entire bulletin has been updated.

wheels, exposure to heavy machinery facilities, grinding, welding, etc. This type of contamination can be identified by the presence of small, red or brown particles on the paint surface. These particles are often difficult to see on dark color paints but can be easily felt when brushing a hand across horizontal body surfaces such as the hood, roof, or deck lid. Follow the Repair Procedure in this bulletin to clean vehicles that may have been subjected to contamination by airborne iron particles such as rail dust during rail transportation or extended storage near industrial areas.

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 Lexus vehicles is continuously being improved, it remains the dealers responsibility to protect and maintain the quality of the vehicles paint finish after receipt at the dealership prior to the 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.

This material protects from acid rain, environmental fallout, and rail contamination. Follow the Removal Procedure in this bulletin to remove the RapgardTM protective film within 90 days from initial application. SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. L-PG004-94. The entire bulletin has been updated.

wheels, exposure to heavy machinery facilities, grinding, welding, etc. This type of contamination can be identified by the presence of small, red or brown particles on the paint surface. These particles are often difficult to see on dark color paints but can be easily felt when brushing a hand across horizontal body surfaces such as the hood, roof, or deck lid. Follow the Repair Procedure in this bulletin to clean vehicles that may have been subjected to contamination by airborne iron particles such as rail dust during rail transportation or extended storage near industrial areas.

Please see L-SB-0026-26

These resources, in conjunction with the Repair Manual, are for dealership personnel to assist those customers with user issues, user errors, and compatibility issues with other vehicle systems and external applications encountered while operating telematics features.

Once the system is reset, all previously registered keys will be erased and can never be reused. Another feature, Add/Remove Key, is also available. Once a key is removed, it can never be reused.

Once the system is reset, all previously registered keys will be erased and can never be reused. Another feature, Add/Remove Key, is also available. Once a key is removed, it can never be reused.

Please see L-SB-0006-23.

These resources, in conjunction with the Repair Manual, are for dealership personnel to assist those customers with user issues, user errors, and compatibility issues with other vehicle systems and external applications encountered while operating telematics features.

recommendations

2023 model year LS 500; 2024 model year GX 550, LC 500, LC 500c, and LC 500h vehicles equipped with Lexus Multimedia earlier than version 2170 (earlier than 2172 for GX 550). This software update includes the following improvements: User Profile. User interface. Cloud navigation. Intelligent assistant voice recognition. Bug fixes.

The following steps are instructions on how to retrieve the data from the system and are only to be used when requested by FTS and/or FPE.

The following steps are instructions on how to retrieve the data from the system and are only to be used when requested by FTS and/or FPE.

LG-N210ee9999-09 may exhibit a condition in which the vehicle customize settings menu is unavailable in the head unit after connecting to Techstream. Some 2023 model year ES 250, ES 350, LS 500, LS 500h, RX 350, RX 350h, RX 500h, and RZ 450e vehicles, and 2023 2024 model year ES 300h and UX 250h vehicles with DCM firmware versions earlier than LG-N210jj3333-09, LG-N210nn1212-09, LG-N310kk4646-0I, LG-N310ll4A4A-0I, LG-N310mm8A8A-0I, LG-N310nnBLBM-0I, or LG-N310oo1B1B-0I may exhibit a condition in which remote services are inoperative. Some 2023 model year ES 250, ES 350, LS 500, LS 500h, and RZ 450e vehicles, 2023 2024 model year RX 350, RX 350h, RX 450h+, and RX 500h vehicles, 2024 model year GX 550, LC 500c, and UX 250h vehicles; and 2023 2025 model year ES 300h vehicles with DCM firmware versions earlier than LG-N210qq####-##, or LG-N310qq####-##, may exhibit a condition in which Apple Music or Amazon Music streaming and/or remote services are inoperative. A DCM firmware update is now available.

LG-N210ee9999-09 may exhibit a condition in which the vehicle customize settings menu is unavailable in the head unit after connecting to Techstream. Some 2023 model year ES 250, ES 350, LS 500, LS 500h, RX 350, RX 350h, RX 500h, and RZ 450e vehicles, and 2023 2024 model year ES 300h and UX 250h vehicles with previous versions of DCM firmware (See Table 1 below) may exhibit a condition in which remote services are inoperative. A DCM firmware update is now available to address these conditions.

LG-N210ee9999-09 may exhibit a condition in which the vehicle customize settings menu is unavailable in the head unit after connecting to Techstream. Some 2023 model year ES 250, ES 350, LS 500, LS 500h, RX 350, RX 350h, RX 500h, and RZ 450e vehicles, and 2023 2024 model year ES 300h and UX 250h vehicles with previous versions of DCM firmware (See Table 1 below) may exhibit a condition in which remote services are inoperative. A DCM firmware update is now available to address these conditions.

LG-N210ee9999-09 may exhibit a condition in which the vehicle customize settings menu is unavailable in the head unit after connecting to Techstream. A DCM firmware update is now available to address this condition. Follow the DCM Firmware Update Procedure in this bulletin to update the firmware.

increased evaporative emissions to exceed the regulated limits. This issue will not trigger the M.I.L. (Malfunction Indicator Lamp).

increased evaporative emissions to exceed the regulated limits. This issue will not trigger the M.I.L. (Malfunction Indicator Lamp).

increased evaporative emissions to exceed the regulated limits. This issue will not trigger the M.I.L. (Malfunction Indicator Lamp).

rainwater, nighttime dew, or high humidity to form acidic compounds. If these contaminants settle and remain on a painted vehicle surface, especially the horizonal areas of the hood, roof, and decklid, significant damage can occur. This damage is the result of actual etching of the paint and appears as pitting or water spots. As acid rain droplets on the vehicle surface evaporate, the concentration strength of the acid increases, causing deeper and more rapid damage. This evaporation and corrosive action also occur more rapidly on dark colored cars as direct sun heat increases. While Lexus paint quality, durability, and resistance to environmental factors is continuously being improved, it remains the responsibility of the dealer to protect and maintain the vehicles paint finish from the time of arrival at the dealership until retail delivery to the customer. In areas known for high frequency and/or concentration of acid rain, frequent vehicle washing during high heat or humidity periods will minimize the potential for paint damage caused by acid rain. It is further recommended that either reverse osmosis or deionized water be used to prevent water spotting. SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. BO029-91. The entire bulletin has been updated. Service Bulletin No. BO029-91 is obsolete

rainwater, nighttime dew, or high humidity to form acidic compounds. If these contaminants settle and remain on a painted vehicle surface, especially the horizonal areas of the hood, roof, and decklid, significant damage can occur. This damage is the result of actual etching of the paint and appears as pitting or water spots. As acid rain droplets on the vehicle surface evaporate, the concentration strength of the acid increases, causing deeper and more rapid damage. This evaporation and corrosive action also occur more rapidly on dark colored cars as direct sun heat increases. While Lexus paint quality, durability, and resistance to environmental factors is continuously being improved, it remains the responsibility of the dealer to protect and maintain the vehicles paint finish from the time of arrival at the dealership until retail delivery to the customer. In areas known for high frequency and/or concentration of acid rain, frequent vehicle washing during high heat or humidity periods will minimize the potential for paint damage caused by acid rain. It is further recommended that either reverse osmosis or deionized water be used to prevent water spotting. SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. BO029-91. The entire bulletin has been updated. Service Bulletin No. BO029-91 is obsolete

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.

& Fuel Filler Dust Intrusion

Communication with ECM/PCM "A" Missing Message. Upon investigation, it is found that the engine ECU has been damage and needs to be replaced. In several cases, the cause of the ECU damage was improper jump starting. Further investigation found that ECU damage may occur if the negative (ground) cable clamps are attached on or around the engine ECU or mounting bracket. To prevent this condition from occurring, it is recommended that the jumper cables be attached as described in the owners manual.

oil leak that originates between the oil pan sub-assembly and the stiffening crankcase assembly.

Communication with ECM/PCM "A" Missing Message. Upon investigation, it is found that the engine ECU has been damage and needs to be replaced. In several cases, the cause of the ECU damage was improper jump starting. Further investigation found that ECU damage may occur if the negative (ground) cable clamps are attached on or around the engine ECU or mounting bracket.

high-pitched noise coming from the front HVAC blower motor while operating the air conditioner or heater. This condition does not affect the operation of the vehicle, however, a heater cover has been developed to help reduce or potentially eliminate the noise.

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.

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.

The procedures outlined in this Service Bulletin aid in locating, inspecting, and repairing refrigerant leaks.

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.