Lexus CT Hybrid 2015–2020 — technical service bulletin

Bulletin L-TT-0254-18 · NHTSA communication 10173986 · issued Mar 26, 2020

Technical service bulletin

communication type

Equipment

component

2015–2020

model years

vehicle entries

Official summary

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.

Vehicles covered

2015 Lexus CT Hybrid
2016 Lexus CT Hybrid
2017 Lexus CT Hybrid
2018 Lexus CT Hybrid
2015 Lexus ES350
2016 Lexus ES350
2017 Lexus ES350
2018 Lexus ES350
2019 Lexus ES350
2020 Lexus ES350
2015 Lexus ES Hybrid
2016 Lexus ES Hybrid
2017 Lexus ES Hybrid
2018 Lexus ES Hybrid
2019 Lexus ES Hybrid
2020 Lexus ES Hybrid
2016 Lexus GS 200T
2017 Lexus GS 200T
2018 Lexus GS300
2019 Lexus GS300
2020 Lexus GS300
2015 Lexus GS 350
2016 Lexus GS 350
2017 Lexus GS 350
2018 Lexus GS 350
2019 Lexus GS 350
2020 Lexus GS 350
2015 Lexus GS450H
2016 Lexus GS F
2017 Lexus GS F
2018 Lexus GS F
2019 Lexus GS F
2020 Lexus GS F
2016 Lexus GS Hybrid
2017 Lexus GS Hybrid
2018 Lexus GS Hybrid
2015 Lexus GX460
2016 Lexus GX460
2017 Lexus GX460
2018 Lexus GX460
2019 Lexus GX460
2020 Lexus GX460
2016 Lexus IS200T
2017 Lexus IS200T
2015 Lexus IS 250
2015 Lexus IS 250C
2016 Lexus IS 300
2017 Lexus IS 300
2018 Lexus IS 300
2019 Lexus IS 300
2020 Lexus IS 300
2015 Lexus IS 350
2016 Lexus IS 350
2017 Lexus IS 350
2018 Lexus IS 350
2019 Lexus IS 350
2020 Lexus IS 350
2015 Lexus IS 350C
2018 Lexus LC500
2019 Lexus LC500

What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.