2021 Lexus LC TSBs
35 Technical Service Bulletins across 9 categories
Categories
Body & Paint
13 bulletinsSome 2005 2026 Lexus vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present.
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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.
Some 2010 2026 model year Lexus vehicles may exhibit paint stains after the removal of Rapgard.
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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.
Some 2010 2026 model year Lexus vehicles may exhibit paint stains after the removal of Rapgard.
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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.
Some 2005 2024 Lexus vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present.
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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.
Some 2005 2024 Lexus vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present.
Read full bulletin
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.
Some 2005 2024 Lexus vehicles that have undergone water intrusion may exhibit a condition in which a musty smell is present.
Read full bulletin
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.
Some 2005 2024 Lexus vehicles that have undergone water intrusion may exhibit a condition in which a musty smell is present.
Read full bulletin
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.
Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere.
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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.
Lexus vehicles are currently protected with RapgardTM protective film designed to protect the horizontal painted surfaces.
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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.
Vehicles may occasionally be subjected to contamination by airborne iron particles shed from railroad tracks, train...
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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.
Acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere.
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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.
Lexus vehicles are currently protected with RapgardTM protective film designed to protect the horizontal painted surfaces.
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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.
Vehicles may occasionally be subjected to contamination by airborne iron particles shed from railroad tracks, train...
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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.
Infotainment
6 bulletinsSome 2018 2025 model year Lexus vehicles equipped with the Enform 2.0 Navigation System, require a Special Service Tool...
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(SST) USB flash drive to update the map, points of interest, and system software.
To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit.
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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.
To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit.
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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.
Some 2021 model year Lexus vehicles are equipped with an eOwners Manual (eOM), which is installed into the head unit while the vehicle is in transit.
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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 Software Installation section of this bulletin.
Some 2018 2025 model year Lexus vehicles equipped with the Enform 2.0 Navigation System, require a Special Service Tool...
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(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.
Some 2018 ? 2022 model year Lexus vehicles equipped with the Enform? 2.0 Navigation System, require a Special Service...
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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 date of the dynamic subscription (stored in the head unit), must be checked. If the expiration date has not passed, a license key may be generated without the purchase of an activation card number (ACN). Updating the map without the use of an ACN is considered an Embedded Navigation Update (refer to pg. 10) and performing this update does not extend the subscription to dynamic map services. If the subscription period has expired, or is expiring within the next 90 days, it should be recommended to the customer to purchase an ACN. Utilizing an ACN, will initiate the Dynamic Navigation Update (refer to pg. 4). This Dynamic Navigation Update will perform the embedded navigation update and provide dynamic map services for a period of two years from the date that the Dynamic Navigation Update is performed. ACNs are provided in a pamphlet available through the normal parts ordering system. Follow the process in this bulletin to perform the update.
Brakes
4 bulletinsSome 2018 2023 model year LC 500, and LC 500h, 2021 2023 model year LC 500c, 2018 2023 model year LS 500, and LS...
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500h, 2015 model year RX 450h, and 2018 2022 model year RX 450h vehicles may exhibit a condition in which the brake, ABS, and/or TRAC warning lights are on and/or a Check VSC message displays. One or more of the following specific Diagnostic Trouble Codes (DTCs) C1391, C1252, C1256, and/or C1253 will be stored in the vehicle memory to be used as verification. This condition may be caused by a small internal brake fluid leak inside the brake actuator.
Certain 2018 2026 model year LC 500 and 2018 2025 LC 500h vehicles are equipped with high-friction brake pads...
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specifically designed for superior braking performance and response. As a result, the front or rear brakes may exhibit a squeal/squeak noise. For customers who find these characteristics objectionable, brake pads with alternative material are now available as service parts.
To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover.
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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.
To prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover.
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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.
Other
4 bulletinsOBSOLETE NOTICE February 2, 2026: This bulletin is now obsolete.
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Please see L-SB-0004-26.
OBSOLETE NOTICE January 22, 2026: This bulletin is now obsolete.
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Please see L-SB-0003-26.
Some customers may experience operational difficulties with some telematics features which they cannot resolve on their own.
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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.
A very small percentage of customers experience operational difficulties with some telematics features which they cannot resolve on their own.
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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.
HVAC & Climate
2 bulletinsThe air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks.
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The procedures outlined in this Service Bulletin aid in locating, inspecting, and repairing refrigerant leaks.
The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks.
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Follow the procedures outlined in this service bulletin to aid in locating, inspecting, and repairing refrigerant leaks.
Fuel System
2 bulletinsThe condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with...
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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 condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with...
Read full bulletin
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
Electrical
2 bulletinsSome 2018 ? 2024 model year Lexus vehicles may exhibit a hybrid system warning lamp occurring in below-freezing temperatures (below 32F or 0C).
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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.
TI: TECHNICAL INSTRUCTIONS FOR 22LC01 DATA COMMUNICATION MODULE (DCM) REPROGRAMMING CERTAIN 2021 MODEL YEAR IS300,...
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IS350, LC500, LC500h, LC500C, LS500, LS500h, NX300, NX300h, RC300, RC350, RC F CERTAIN 2021-2022 RX350, RX350L, RX450h, RX450hL CERTAIN 2022 GX460
Engine
1 bulletinSome 2016 2020 model year GS F, 2008 2014 model year IS F, 2022 2025 model year IS 500, 2018 2025 model year LC 500,...
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2021 2025 model year LC 500c, and 2015 2025 model year RC F vehicles with 2UR-GSE engines may exhibit a MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs): P0505 Idle Control System P2111 Throttle Actuator Control System Stuck Open The throttle body assembly with motor and ventilation hoses no. 2 and no. 3 have been modified to address these conditions.
Suspension
1 bulletinSome 2021 ? 2024 model year Lexus vehicles use hub bolts in place of studs/nuts to fasten the wheels to the vehicle.
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If non-compatible wheels or hub bolts/nuts are installed, there is increased risk that the wheel(s) could come off resulting in a crash. This service bulletin outlines the physical differences and precautions that should be taken when servicing different wheel and wheel fastener types.