Nissan Altima 2018–2019 — technical service bulletin
Bulletin NTB18-071a · NHTSA communication 10188317 · issued Feb 9, 2021
Technical service bulletin
communication type
Electrical System
component
2018–2019
model years
11
vehicle entries
Official summary
SECURITY ALARM SOUNDS AFTER USING MECHANICAL KEY TO UNLOCK DRIVER DOOR This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard 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.