Why is it not recommended to install external tire pressure monitoring?
2 Answers
Reasons why external tire pressure monitoring is not recommended: Inaccurate measurement data: Since the external sensor module is installed on the outside of the tire valve, it cannot accurately measure the pressure inside the tire; Poor anti-theft performance: Unlike internal sensors installed inside the tire, external sensor modules are easily stolen and are more susceptible to damage when exposed outside; Inconvenient inflation: The external sensor needs to be removed each time the tire is inflated, and frequent installation and removal may also damage the valve; Limited warning effectiveness: The data transmission frequency of external sensors is slower, making it difficult for the in-vehicle display module to promptly observe changes in tire pressure values. The working principle of tire pressure monitoring is: Using pressure sensors installed inside the tire to measure tire pressure, wireless transmitters send the pressure information from inside the tire to a central receiver module. Methods to eliminate tire pressure alerts: There is a tire monitoring indicator button on the central console. After the system issues a low tire pressure warning, the vehicle must remain stationary for about one minute. Do not move the vehicle or turn off and restart the ignition until the button is pressed to recalibrate the tire monitoring indicator. Find the tire pressure reset option in the settings on the central display. If none of the above methods work, visit a 4S store to eliminate the tire pressure alert.
I really don't recommend installing external tire pressure monitoring systems because they're too prone to problems. I tried one myself, and after installation, I was constantly worried about the device falling off while driving. The vibrations on highways are strong, and several times the sensor came loose and triggered alarms, giving me a scare. The most annoying part is their poor accuracy – in summer heat they show inflated pressure readings, while in winter they read low, making me waste time checking my tires unnecessarily. Plus, these devices are easy to steal. Mine got stolen overnight in a parking lot, and I had to spend money to replace it. A mechanic friend told me that external sensors hanging on the valve stem can compromise the valve cap's seal, leading to slow air leaks and even affecting braking performance. After switching to an internal system, the signals became much more stable. Mounted inside the wheel rim, it's protected from weather, provides accurate readings, and while installation is more involved, it's more reliable long-term. My advice: don't try to save money here – safety should always come first.
