Lexus CT Hybrid 2010–2015 — technical service bulletin

Bulletin L-TT-0172-15 · NHTSA communication 10134167 · issued Jul 14, 2015

Technical service bulletin

communication type

Electrical System

component

2010–2015

model years

vehicle entries

Official summary

TT: Techstream Health Check Results screen shows "Yes" for a Telematics ECU (DCM) Calibration update regardless of whether a calibration update is available or not. The issue is related to the Techstream software and will be corrected in a future Techstream software release.

Vehicles covered

2010 Lexus CT Hybrid
2011 Lexus CT Hybrid
2012 Lexus CT Hybrid
2013 Lexus CT Hybrid
2014 Lexus CT Hybrid
2015 Lexus CT Hybrid
2010 Lexus ES350
2011 Lexus ES350
2012 Lexus ES350
2013 Lexus ES350
2014 Lexus ES350
2015 Lexus ES350
2013 Lexus ES Hybrid
2014 Lexus ES Hybrid
2015 Lexus ES Hybrid
2010 Lexus GS 350
2011 Lexus GS 350
2013 Lexus GS 350
2014 Lexus GS 350
2015 Lexus GS 350
2011 Lexus GS450H
2014 Lexus GS450H
2015 Lexus GS450H
2010 Lexus GS Hybrid
2013 Lexus GS Hybrid
2010 Lexus GX460
2011 Lexus GX460
2012 Lexus GX460
2013 Lexus GX460
2014 Lexus GX460
2015 Lexus GX460
2010 Lexus HS 250 Hybrid
2011 Lexus HS 250 Hybrid
2012 Lexus HS 250 Hybrid
2013 Lexus HS 250 Hybrid
2014 Lexus HS 250 Hybrid
2015 Lexus HS 250 Hybrid
2010 Lexus IS 250
2011 Lexus IS 250
2012 Lexus IS 250
2013 Lexus IS 250
2014 Lexus IS 250
2015 Lexus IS 250
2010 Lexus IS 250C
2011 Lexus IS 250C
2012 Lexus IS 250C
2013 Lexus IS 250C
2014 Lexus IS 250C
2015 Lexus IS 250C
2010 Lexus IS 350C
2011 Lexus IS 350C
2012 Lexus IS 350C
2013 Lexus IS 350C
2014 Lexus IS 350C
2015 Lexus IS 350C
2010 Lexus IS F
2011 Lexus IS F
2012 Lexus IS F
2013 Lexus IS F
2014 Lexus IS F

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.