TSB L-TT-0336-24 — Lexus Service bulletin
L-TT-0336-24 is a service bulletin on file with NHTSA for the Lexus ES, 2019–2024 model years, filed and re-filed as 2 documents. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. After jump-starting, the vehicle may experience a no-start condition and multiple DTCs including U010087 - Lost Communication with ECM/PCM "A" Missing Message. Upon investigation, it is found that the engine ECU has been damage and needs to be replaced. In several cases, the…
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years L-TT-0336-24 names
Every document filed under L-TT-0336-24
Manufacturers re-issue a bulletin as the repair changes, and file separate copies for technicians and for owners. All of them carry the same number.
| Document ID | Filed | Type |
|---|---|---|
| L-TT-0336-24 Rev1 | November 6, 2024 | Service bulletin |
| L-TT-0336-24 | October 24, 2024 | Service bulletin |
What L-TT-0336-24 covers
Engine — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB L-TT-0336-24?
L-TT-0336-24 is a service bulletin filed with NHTSA by Lexus, covering the Lexus ES across the 2019–2024 model years. NHTSA's summary reads: After jump-starting, the vehicle may experience a no-start condition and multiple DTCs including U010087 - Lost Communication with ECM/PCM "A" Missing Message. Upon investigation, it is found that the engine ECU has been damage and needs to be replaced. In several cases, the…
Which vehicles does L-TT-0336-24 cover?
NHTSA's file names Lexus ES (2019–2024). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.
Is TSB L-TT-0336-24 a recall, and is the repair free?
No. L-TT-0336-24 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.
How do I get the full text of L-TT-0336-24?
Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under L-TT-0336-24, its date, and NHTSA's own summary from the public file.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under L-TT-0336-24. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.