What causes the indirect tire pressure monitoring failure in Lavida?
3 Answers
Lavida tire pressure warning reasons: punctured tire; excessive tire pressure; prolonged driving with low tire pressure; tire pressure decreasing due to prolonged lack of inflation. Tire Pressure Monitoring: Tire pressure monitoring is the real-time automatic monitoring of tire pressure during vehicle operation, with alerts for tire leaks and low pressure to ensure driving safety. Common tire pressure monitoring methods include: Direct Tire Pressure Monitoring: Direct tire pressure monitoring devices use pressure sensors installed in each tire to directly measure tire pressure. Wireless transmitters send 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 tire pressure is too low or there is a leak. Indirect Tire Pressure Monitoring: When a tire's pressure decreases, the vehicle's weight causes the rolling radius of that wheel to become smaller, resulting in a faster rotation speed compared to other wheels. By comparing the rotational speed differences between tires, the system monitors tire pressure. Indirect tire pressure warning systems essentially rely on calculating the rolling radius of tires to monitor pressure. Introduction to Tire Pressure Monitoring System (TPMS): It combines the advantages of both systems mentioned above, equipping direct sensors in two diagonally opposite tires and incorporating a 4-wheel indirect system. Compared to using only a direct system, this hybrid system can reduce costs and overcome the limitation of indirect systems being unable to detect simultaneous low pressure in multiple tires. However, it still cannot provide real-time pressure data for all four tires as effectively as a direct system.
Last week while driving my Lavida, the tire pressure monitoring light inexplicably came on. Actual tire pressure checks showed normal readings, but the system displayed a fault. Since indirect TPMS relies on ABS sensors to compare wheel speed differences for detection, possible causes include sensor dust accumulation or loose wiring. I tried high-speed driving for automatic reset, but the light remained; manual fuse checks also showed no issues. An experienced driver friend suggested uneven tire wear or mismatched sizes could mislead the system, advising to first ensure uniform tire pressure before visiting a repair shop for ABS module diagnostics. Though seemingly minor, neglecting this could lead to wheel deformation or increased fuel consumption with significant safety risks, so prompt resolution is recommended.
False alarms in the Lavida's indirect TPMS are quite common. Based on my experience, they're mostly caused by dirty ABS sensors or uncalibrated tires. False pressure warnings increase instability risks, and undetected leaks could lead to blowouts. The fix is simple: First, use a pressure gauge to check all tires for balanced readings. If pressures are normal, try restarting the car while parked or driving over 50 km/h for 20+ minutes for an automatic reset. If that fails, it might indicate wheel misalignment or faulty sensors - don't delay, just visit the dealership for a free diagnostic scan with their tools.
