Nissan Altima 2018–2019 — technical service bulletin
Bulletin NTB19-008 · NHTSA communication 10153033 · issued Jan 29, 2019
Technical service bulletin
communication type
Equipment
component
2018–2019
model years
6
vehicle entries
Official summary
NISSAN; DIAGNOSIS INFORMATION FOR DTC P161D SERVICE INFORMATION When key registration is unsuccessful after BCM replacement, P161D (Immobilizer) will set when the ignition is turned on. Possible causes - Improper key registration - Defective BCM (Vehicles with Intelligent Key only) - EPS control unit (Vehicles with mechanical key only) - Intelligent Key unit (Vehicles with mechanical key only) Trouble Diagnosis NOTE: If DTC B2196-52 is stored with P161D, perform the diagnosis procedure for DTC B2196-52 first. - Before replacing the BCM, confirm that the keys were programmed correctly by ensuri
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.