Nissan Altima Owners Manual: Freeing a frozen door lock

To prevent a door lock from freezing, apply deicer through the key hole. If the lock becomes frozen, heat the key before inserting it into the key hole or use the remote keyless entry function on the Intelligent Key.

    Anti-freeze
    In the winter when it is anticipated that the temperature will drop below 32°F (0°C), check the anti-freeze to assure proper winter protection. For details, see “Engine cooling system” in t ...

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    If your vehicle overheats
    If your vehicle is overheating (indicated by an extremely high temperature gauge reading), or if you feel a lack of engine power, detect abnormal noise, etc. take the following steps. WARNING ● Do not continue to drive if your vehicle overheats. Doing so could cause engine damage or a v ...

    Vehicle information display warnings and indicators
    1. No Key Detected 2. Key ID Incorrect 3. Shift to Park 4. Push ignition to OFF 5. Key Battery Low 6. Engine start operation for Intelligent Key system 7. Release parking brake 8. Low Fuel 9. Low Washer Fluid 10. Door Open 11. Trunk Open 12. Timer Alert – Time for a driver break? 13 ...

    Intelligent key
     CONSULT-III Function (BCM - INTELLIGENT KEY) WORK SUPPORT SELF-DIAG RESULT Refer to BCS-91, "DTC Index". DATA MONITOR ACTIVE TEST ...