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July 14, 2015 Service bulletin

TT: Techstream Health Check Results screen shows "Yes" for a Telematics ECU (DCM) Calibration update...

Lexus technical service bulletin L-TT-0172-15 for 2010-2015 Lexus ES350, 2010-2015 Lexus RX350 and 2010-2015 Lexus IS 250 and others.

Bulletin number
L-TT-0172-15
Component
Electrical system: software
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.

Owners of these vehicles have filed 129 complaints in the electrical category.

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