Honda Passport 2019–2020 — technical service bulletin
Bulletin ONLZ9R04052021 · NHTSA communication 10190302 · issued Apr 5, 2021
Technical service bulletin
communication type
Electrical System
component
2019–2020
model years
4
vehicle entries
Official summary
Owner Notification Letter - On some 2019-20 Passport/Pilot models, a loose connection in the MOST bus network is causing a popping or crackling from the speakers or no sound from the audio system. There may also be a Network Loss message and/or display issues. For these vehicles that display any of the above symptoms, American Honda is extending the warranty for the MOST bus network connectors on these vehicles to 5 years or 60,000 miles from the original date of purchase, whichever comes first.
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.