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Service bulletin L-TT-0275-19_Rev

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10172866
Published by NHTSA2020-03-30
Manufacturer's numberL-TT-0275-19_Rev
Manufacturer's date2020-02-25
NHTSA componentELECTRICAL SYSTEM; EQUIPMENT

NHTSA's summary

TT: Some 2020 model year vehicles may display abnormal Safety Connect operation during PDS or after replacement due to DCM activation issues. If there are no DTCs present and after the initial SOS light flashing sequence after ignition on, neither the red nor green light stays on in the overhead console determine if the vehicle is in shipping mode. To determine if a vehicle is experiencing this condition, connect a Techstream and navigate to: Telematics-Data List - ?Telematics Activation Status?. If this value is displayed as ?Shipping?, continue to the Shipping Mode recommendations below, and do not create a TAS case

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Equipment and accessories

Vehicles listed
LEXUS ES HYBRID2020
LEXUS ES3502020
LEXUS NX HYBRID2020
LEXUS NX3002020
LEXUS RX HYBRID2020
LEXUS RX3502020
LEXUS UX HYBRID2020
LEXUS UX2002020

Listing a model year does not mean every vehicle of it is concerned: the document says which.