The specific steps to turn on the heater of Xiali N5 are as follows:
1. Press the brake pedal of Xiali N5.
2. Turn the car key to start the engine.
3. Run the engine until the water temperature rises.
4. Rotate the fan speed button to the right to turn on the air conditioning system.
5. Rotate the temperature knob to the right to the red area to turn on the warm air mode.
6. Press the internal circulation button to turn on the internal circulation mode to save engine heat energy in winter.