Locking with inside lock knob
Nissan Altima / Nissan Altima Owners Manual / Pre-driving checks and adjustments / Doors / Locking with inside lock knob

Inside lock
To lock the door without the key, move the inside lock knob to the lock position 1 , then close the door.
To unlock the door without the key, move the inside lock knob to the unlock position 2 .
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