Honda Accord 2018–2019 — technical service bulletin
Bulletin A19070D · NHTSA communication 10162892 · issued Jul 11, 2019
Technical service bulletin
communication type
Equipment
component
2018–2019
model years
2
vehicle entries
Official summary
ServiceNews Article - Do you hear a booming or rumbling through the speakers when the cabin temperature is 55 or lower? Does it go away once the cabin heats up? We're aware of this issue and have it under investigation. If you get a vehicle in for this, remove the covers in the headliner for the ANC microphones and check if the insulating foam is damaged or folded over as shown below. We've found this may be the reason for the noise. Replace the damaged foam and confirm the repair. If the repair is successful, provide feedback to Techline.
Vehicles covered
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.