Nissan Altima 2018 — technical service bulletin
Bulletin NTB18-023A · NHTSA communication 10192022 · issued Mar 11, 2021
Technical service bulletin
communication type
Electrical System
component
2018
model years
8
vehicle entries
Official summary
NISSAN; MICROPHONE DOES NOT WORK This bulletin has been amended. See AMENDMENT HISTORY on the last page. Discard all previous versions of this bulletin.
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.