How to Turn on the Heater in Nissan Sylphy?
1 Answers
If the A/C indicator light is on, press the "A/C button" to turn off the cooling function. Rotate the temperature control dial to the red zone (the temperature adjustment range is 18~32°C). Set your desired temperature, but avoid setting it lower than the outside temperature, as this may prevent proper temperature control. Adjust the fan speed switch to your preferred airflow intensity. Additional reference materials: 1. Internal vs. External Air Circulation: Choose between internal and external air circulation based on driving conditions. Use external circulation in areas with good air quality and internal circulation in poor air conditions. External circulation ensures better airflow, while internal circulation provides better heat retention. However, prolonged use of internal circulation may cause window fogging. If windows fog up, use the defroster instead of relying on the heater with the A/C off. 2. Cold Engine Startup: Avoid turning on the heater immediately after a cold start. Some drivers habitually activate the heater right after starting the engine, which accelerates wear. In winter, when the engine is cold, the coolant temperature remains low, and turning on the heater won't warm the cabin quickly—it instead delays engine warm-up and drains the battery. The correct method is to warm up the engine first. Wait until the coolant temperature gauge reaches the midpoint, then turn on the heater. Set the A/C to external circulation for 2-3 minutes to refresh cabin air before switching to internal circulation. Additionally, using engine radiator heat reduces fuel consumption.
