TSB: LEXUS CT, CT HYBRID, ES, GS, GX, IS, LC, LFA, LS, LX, NX, RC, RX, RZ, UX (2012-2024)

Bulletin LSB004323 - August 21, 2023

Bulletin Details

Bulletin IDLSB004323
ManufacturerLEXUS
ModelsCT, CT HYBRID, ES, GS, GX, IS, LC, LFA, LS, LX, NX, RC, RX, RZ, UX
Model Years2012-2024
Date IssuedAugust 21, 2023
Date Added to NHTSAOctober 16, 2023
ComponentUNKNOWN OR OTHER
Vehicles Affected112 combinations

What is a TSB?

A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls, they serve as repair guidance for common problems.

If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.

Summary

TSB: The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. Follow the procedures outlined in this service bulletin to aid in locating, inspecting, and repair

Affected Vehicles

MakeModelYearComponent
LEXUS RX 2024 980000 UNKNOWN OR OTHER
LEXUS ES 2023 980000 UNKNOWN OR OTHER
LEXUS GX 2023 980000 UNKNOWN OR OTHER
LEXUS IS 2023 980000 UNKNOWN OR OTHER
LEXUS LC 2023 980000 UNKNOWN OR OTHER
LEXUS LS 2023 980000 UNKNOWN OR OTHER
LEXUS LX 2023 980000 UNKNOWN OR OTHER
LEXUS NX 2023 980000 UNKNOWN OR OTHER
LEXUS RC 2023 980000 UNKNOWN OR OTHER
LEXUS RX 2023 980000 UNKNOWN OR OTHER
LEXUS RZ 2023 980000 UNKNOWN OR OTHER
LEXUS UX 2023 980000 UNKNOWN OR OTHER
LEXUS ES 2022 980000 UNKNOWN OR OTHER
LEXUS GX 2022 980000 UNKNOWN OR OTHER
LEXUS IS 2022 980000 UNKNOWN OR OTHER
LEXUS LC 2022 980000 UNKNOWN OR OTHER
LEXUS LS 2022 980000 UNKNOWN OR OTHER
LEXUS LX 2022 980000 UNKNOWN OR OTHER
LEXUS NX 2022 980000 UNKNOWN OR OTHER
LEXUS RC 2022 980000 UNKNOWN OR OTHER
LEXUS RX 2022 980000 UNKNOWN OR OTHER
LEXUS UX 2022 980000 UNKNOWN OR OTHER
LEXUS ES 2021 980000 UNKNOWN OR OTHER
LEXUS GX 2021 980000 UNKNOWN OR OTHER
LEXUS IS 2021 980000 UNKNOWN OR OTHER
LEXUS LC 2021 980000 UNKNOWN OR OTHER
LEXUS LS 2021 980000 UNKNOWN OR OTHER
LEXUS LX 2021 980000 UNKNOWN OR OTHER
LEXUS NX 2021 980000 UNKNOWN OR OTHER
LEXUS RC 2021 980000 UNKNOWN OR OTHER
LEXUS RX 2021 980000 UNKNOWN OR OTHER
LEXUS UX 2021 980000 UNKNOWN OR OTHER
LEXUS ES 2020 980000 UNKNOWN OR OTHER
LEXUS GS 2020 980000 UNKNOWN OR OTHER
LEXUS GX 2020 980000 UNKNOWN OR OTHER
LEXUS IS 2020 980000 UNKNOWN OR OTHER
LEXUS LC 2020 980000 UNKNOWN OR OTHER
LEXUS LS 2020 980000 UNKNOWN OR OTHER
LEXUS LX 2020 980000 UNKNOWN OR OTHER
LEXUS NX 2020 980000 UNKNOWN OR OTHER
LEXUS RC 2020 980000 UNKNOWN OR OTHER
LEXUS RX 2020 980000 UNKNOWN OR OTHER
LEXUS UX 2020 980000 UNKNOWN OR OTHER
LEXUS ES 2019 980000 UNKNOWN OR OTHER
LEXUS GS 2019 980000 UNKNOWN OR OTHER
LEXUS GX 2019 980000 UNKNOWN OR OTHER
LEXUS IS 2019 980000 UNKNOWN OR OTHER
LEXUS LC 2019 980000 UNKNOWN OR OTHER
LEXUS LS 2019 980000 UNKNOWN OR OTHER
LEXUS LX 2019 980000 UNKNOWN OR OTHER
LEXUS NX 2019 980000 UNKNOWN OR OTHER
LEXUS RC 2019 980000 UNKNOWN OR OTHER
LEXUS RX 2019 980000 UNKNOWN OR OTHER
LEXUS UX 2019 980000 UNKNOWN OR OTHER
LEXUS CT HYBRID 2018 980000 UNKNOWN OR OTHER
LEXUS ES 2018 980000 UNKNOWN OR OTHER
LEXUS GS 2018 980000 UNKNOWN OR OTHER
LEXUS GX 2018 980000 UNKNOWN OR OTHER
LEXUS IS 2018 980000 UNKNOWN OR OTHER
LEXUS LC 2018 980000 UNKNOWN OR OTHER
LEXUS LS 2018 980000 UNKNOWN OR OTHER
LEXUS LX 2018 980000 UNKNOWN OR OTHER
LEXUS NX 2018 980000 UNKNOWN OR OTHER
LEXUS RC 2018 980000 UNKNOWN OR OTHER
LEXUS RX 2018 980000 UNKNOWN OR OTHER
LEXUS CT HYBRID 2017 980000 UNKNOWN OR OTHER
LEXUS ES 2017 980000 UNKNOWN OR OTHER
LEXUS GS 2017 980000 UNKNOWN OR OTHER
LEXUS GX 2017 980000 UNKNOWN OR OTHER
LEXUS IS 2017 980000 UNKNOWN OR OTHER
LEXUS LS 2017 980000 UNKNOWN OR OTHER
LEXUS LX 2017 980000 UNKNOWN OR OTHER
LEXUS NX 2017 980000 UNKNOWN OR OTHER
LEXUS RC 2017 980000 UNKNOWN OR OTHER
LEXUS RX 2017 980000 UNKNOWN OR OTHER
LEXUS CT 2016 980000 UNKNOWN OR OTHER
LEXUS ES 2016 980000 UNKNOWN OR OTHER
LEXUS GS 2016 980000 UNKNOWN OR OTHER
LEXUS GX 2016 980000 UNKNOWN OR OTHER
LEXUS IS 2016 980000 UNKNOWN OR OTHER
LEXUS LS 2016 980000 UNKNOWN OR OTHER
LEXUS LX 2016 980000 UNKNOWN OR OTHER
LEXUS NX 2016 980000 UNKNOWN OR OTHER
LEXUS RC 2016 980000 UNKNOWN OR OTHER
LEXUS RX 2016 980000 UNKNOWN OR OTHER
LEXUS CT 2015 980000 UNKNOWN OR OTHER
LEXUS ES 2015 980000 UNKNOWN OR OTHER
LEXUS GS 2015 980000 UNKNOWN OR OTHER
LEXUS GX 2015 980000 UNKNOWN OR OTHER
LEXUS IS 2015 980000 UNKNOWN OR OTHER
LEXUS LS 2015 980000 UNKNOWN OR OTHER
LEXUS LX 2015 980000 UNKNOWN OR OTHER
LEXUS NX 2015 980000 UNKNOWN OR OTHER
LEXUS RC 2015 980000 UNKNOWN OR OTHER
LEXUS RX 2015 980000 UNKNOWN OR OTHER
LEXUS CT 2014 980000 UNKNOWN OR OTHER
LEXUS ES 2014 980000 UNKNOWN OR OTHER
LEXUS GS 2014 980000 UNKNOWN OR OTHER
LEXUS GX 2014 980000 UNKNOWN OR OTHER
LEXUS IS 2014 980000 UNKNOWN OR OTHER
LEXUS LS 2014 980000 UNKNOWN OR OTHER
LEXUS LX 2014 980000 UNKNOWN OR OTHER
LEXUS RX 2014 980000 UNKNOWN OR OTHER
LEXUS CT 2013 980000 UNKNOWN OR OTHER
LEXUS ES 2013 980000 UNKNOWN OR OTHER
LEXUS GS 2013 980000 UNKNOWN OR OTHER
LEXUS GX 2013 980000 UNKNOWN OR OTHER
LEXUS IS 2013 980000 UNKNOWN OR OTHER
LEXUS LS 2013 980000 UNKNOWN OR OTHER
LEXUS LX 2013 980000 UNKNOWN OR OTHER
LEXUS RX 2013 980000 UNKNOWN OR OTHER
LEXUS LFA 2012 980000 UNKNOWN OR OTHER

Related LEXUS Recalls

CampaignModelYearComponentSummary
TX PLUG-IN HYBRID 2026 POWER TRAIN:AXLE ASSEMBLY Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2026 L...
TX 2026 POWER TRAIN:AXLE ASSEMBLY Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2026 L...
TX HYBRID 2026 POWER TRAIN:AXLE ASSEMBLY Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2026 L...
RZ 2026 ELECTRICAL SYSTEM:PROPULSION SYSTEM Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2026 T...
UX HYBRID 2025 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER... Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2025 L...

What Should You Do?

If your vehicle is affected by this TSB, contact your authorized LEXUS dealer. Bring this bulletin ID (LSB004323) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage, manufacturers sometimes cover TSB-related repairs beyond the warranty period.

Frequently Asked Questions

A recall is a mandatory safety fix, the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.

If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.

Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.

This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.