Lexus CT Hybrid 2017–2020 — technical service bulletin

Bulletin L-TT-0265-19 Rev · NHTSA communication 10178788 · issued Jul 20, 2020

Technical service bulletin

communication type

Engine

component

2017–2020

model years

vehicle entries

Official summary

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 installation or wiring of GFCI breaker

Vehicles covered

2017 Lexus CT Hybrid
2018 Lexus CT Hybrid
2019 Lexus CT Hybrid
2017 Lexus ES350
2018 Lexus ES350
2019 Lexus ES350
2020 Lexus ES350
2017 Lexus ES Hybrid
2018 Lexus ES Hybrid
2019 Lexus ES Hybrid
2020 Lexus ES Hybrid
2017 Lexus GS 200T
2018 Lexus GS300
2019 Lexus GS300
2020 Lexus GS300
2017 Lexus GS 350
2018 Lexus GS 350
2019 Lexus GS 350
2020 Lexus GS 350
2017 Lexus GS F
2018 Lexus GS F
2019 Lexus GS F
2020 Lexus GS F
2017 Lexus GS Hybrid
2018 Lexus GS Hybrid
2017 Lexus GX460
2018 Lexus GX460
2019 Lexus GX460
2020 Lexus GX460
2017 Lexus IS200T
2017 Lexus IS 300
2018 Lexus IS 300
2019 Lexus IS 300
2020 Lexus IS 300
2017 Lexus IS 350
2018 Lexus IS 350
2019 Lexus IS 350
2020 Lexus IS 350
2018 Lexus LC500
2019 Lexus LC500
2020 Lexus LC500
2018 Lexus LC Hybrid
2019 Lexus LC Hybrid
2020 Lexus LC Hybrid
2017 Lexus LS460
2018 Lexus LS500
2019 Lexus LS500
2020 Lexus LS500
2018 Lexus LS Hybrid
2019 Lexus LS Hybrid
2020 Lexus LS Hybrid
2017 Lexus LX570
2018 Lexus LX570
2019 Lexus LX570
2020 Lexus LX570
2017 Lexus NX200T
2018 Lexus NX300
2019 Lexus NX300
2020 Lexus NX300
2017 Lexus NX Hybrid

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.