Nissan Altima 2018 — technical service bulletin
Bulletin NTB18-023 · NHTSA communication 10133211 · issued Mar 9, 2018
Technical service bulletin
communication type
Equipment
component
2018
model years
7
vehicle entries
Official summary
NISSAN; MICROPHONE DOES NOT WORK This bulletin applies only to vehicles equipped with Telematics. IF YOU CONFIRM The microphone of an applied vehicle does not work. - The person receiving your call through Bluetooth® cannot hear you. And Voice Recognition does not respond to any commands. NOTE: DTCs U1A01 and/or U1A02 may be found stored. ACTION 1. Confirm TCU reprogramming will resolve the issue. - Refer to ?Issue Confirmation? on page 2. 2. If confirmed, reprogram the TCU.
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.