
2021 Classic Sylphy's tire pressure monitoring is displayed on the vehicle's dashboard. There are three commonly used tire pressure monitoring methods: Direct Tire Pressure Monitoring: The direct tire pressure monitoring device uses pressure sensors installed in each tire to directly measure the tire pressure. It uses a wireless transmitter to send the pressure information from inside the tire to a central receiver module, which then displays the pressure data for each tire. The system automatically alerts when the tire pressure is too low or there is a leak. Indirect Tire Pressure Monitoring: When the pressure in a tire decreases, the vehicle's weight causes the rolling radius of that wheel to become smaller, making it rotate faster than the other wheels. By comparing the differences in rotation speed between the tires, the system monitors the tire pressure. The indirect tire pressure alert system essentially relies on calculating the rolling radius of the tires to monitor pressure. Introduction to Tire Pressure Monitoring System (TPMS): It combines the advantages of the above two systems. Direct sensors are installed in two diagonally opposite tires, and a 4-wheel indirect system is also equipped. Compared to using a full direct system, this hybrid system can reduce costs and overcome the indirect system's inability to detect when multiple tires simultaneously have low pressure. However, it still cannot provide real-time data on the actual pressure in all four tires like a direct system.

I usually drive a 2021 Sylphy Classic, and the tire pressure display can be viewed on the dashboard. The specific operation is: while driving, press the DISP button on the right side of the steering wheel to switch through the trip computer screens until you see the page with numbers next to the tire icon. There might be no data right after starting the car; it usually takes about two to three minutes of driving to refresh. The tire pressure unit is bar, with normal values between 2.3 and 2.5. It's normal for it to rise to 2.7 when driving on the highway in summer. Once, my tire had a slow leak due to a nail puncture, and the screen immediately turned yellow with a warning, clearly marking the issue with the right rear wheel, which was quite prompt. I recommend using a mechanical tire pressure gauge to check the actual pressure once a month, as the onboard display can have an error of around 0.1.

The tire pressure monitoring in the Sylphy is hidden in the small screen in the middle of the instrument panel. You need to use the round control button on the right side of the steering wheel to adjust it. Last time when I got my car serviced, I specifically asked the mechanic how to operate it: first press the left and right buttons to switch menus, find the interface with the four tire icons, which directly displays the specific pressure values. Remember to wait for the data when starting the car cold; it takes about 500 meters of driving to update. It's best not to look for the tire pressure display when the car is turned off, as the data resets once the power is cut. Once, I forgot to reset the system after changing a tire, and the tire pressure light stayed on even after driving 10 kilometers. It only went back to normal after I reset it in the settings menu. It will alert you if the tire pressure deviates by more than 0.3, but it's best to pull over and check immediately after the alert.

To check tire pressure on the dashboard, use the control button below the right side of the steering wheel to switch displays. After driving this car for a year and a half, I found the display is on the second page of the trip computer, with an icon showing a tire cross-section with numbers. The data isn't refreshed in real-time; it updates after driving about half a kilometer each time you start the car. In winter, the tire pressure often drops to around 2.0, so I immediately inflate it to 2.4. A special reminder for owners with modified rims: remember to reset the monitoring module after changing tires, otherwise the data will be inaccurate. Last time my front left tire was leaking, the number turned red and an exclamation mark icon lit up. The Sylphy's alarm sensitivity is very high, triggering an alert even with just a 0.5bar difference.

You can view the tire pressure data by operating the buttons on the steering wheel. I bought the car half a year ago and took some time to familiarize myself with it: first press the left and right arrow keys on the right side of the steering wheel, flip through two or three pages, and the pressure values of the four tires will appear. The unit is bar, and the display position is relatively close to the top of the screen. The manual states that the normal tire pressure range is marked on the door frame label, but I always keep it at 2.5. Once after a long trip, I noticed the tire pressure showed 3.0, which scared me into releasing some air immediately. Actually, it returned to normal once the temperature dropped. The sensors are installed on the inner side of the wheel hub, so I always remind the mechanic not to damage them when fixing a flat. I’ve developed a habit of checking the tire pressure display every time I refuel, and since adopting this routine, the tire lifespan has noticeably extended.

The tire pressure information is displayed on the dashboard's trip computer screen. Based on my experience driving this car: after starting the engine, press the menu toggle button on the right side of the steering wheel until you see the tire cross-section diagram with specific numerical values - that's the correct screen. The system automatically refreshes data every 30 seconds, but it initially shows blank readings right after ignition. Last week when I got a tire pressure warning, inspection revealed the sensor was dead - spent 200 yuan replacing it. Northern owners should note winter contraction effects; don't panic if it shows 1.9 in the morning as it rises when warmed up. Most practically, always check this display before long trips - once I noticed the rear right tire at only 2.1 before highway driving, and inflating it prevented a potential blowout.


