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:
Warning/indicator lights and audible reminders
...
If your vehicle is stolen
If your vehicle is stolen, you should change the
codes of any non-rolling code device that has
been programmed into HomeLink. Consult the
Owners Manual of each device or call the manufacturer
...
Regulatory Information
FCC Regulatory information
CAUTION: To maintain compliance with
FCCs RF exposure guidelines, use only the
supplied antenna. Unauthorized antenna,
modification, or attachments could damage ...
