TSB ONL6M208142023 — Honda Service bulletin

ONL6M208142023 is a service bulletin on file with NHTSA for the Honda Fit, 2018–2019 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.

What the bulletin says. Owner Notification Letter - On some 2018-2019 Fit vehicles, a combination of carbon deposits on the intake valves and the PGM-FI software settings may lead to reduced combustion stability under certain circumstances. This results in a misfire being detected and Malfunction…

NHTSA's own summary of the document, quoted from the public manufacturer-communications file.

1Document filed
1Vehicle named
2Model years

Vehicles and model years ONL6M208142023 names

VehicleModel years
Honda Fit 2018, 2019

Every document filed under ONL6M208142023

Document IDFiledType
ONL6M208142023 August 14, 2023 Service bulletin

What ONL6M208142023 covers

Engine — the component vocabulary NHTSA files this communication under.

← All Honda Fit TSB years TSB lookup by model

Questions buyers ask

What is TSB ONL6M208142023?

ONL6M208142023 is a service bulletin filed with NHTSA by Honda, covering the Honda Fit across the 2018–2019 model years. NHTSA's summary reads: Owner Notification Letter - On some 2018-2019 Fit vehicles, a combination of carbon deposits on the intake valves and the PGM-FI software settings may lead to reduced combustion stability under certain circumstances. This results in a misfire being detected and Malfunction…

Which vehicles does ONL6M208142023 cover?

NHTSA's file names Honda Fit (2018–2019). 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 ONL6M208142023 a recall, and is the repair free?

No. ONL6M208142023 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 ONL6M208142023?

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 ONL6M208142023, its date, and NHTSA's own summary from the public file.

Data updated 2026-08-20 from NHTSA's public records

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 ONL6M208142023. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.