Troubleshooting guide
Nissan Altima / Nissan Altima Owners Manual / Pre-driving checks and adjustments / Request Switches / Troubleshooting guide
Verify the location of all Intelligent Keys that are programmed for the vehicle. If another Intelligent Key is in range or inside the vehicle, the vehicle system may respond differently than expected.

See also:
Audio operation precautions
Audio operation precautions ...
Troubleshooting guide
The system should respond correctly to all voice
commands without difficulty. If problems are encountered,
try the following solutions.
Where the solutions are listed by number, try
each solution ...
