What does the Toyota TPWS malfunction mean?
2 Answers
The appearance of the TPWS fault code in a car indicates that the tire pressure needs to be recalibrated. Function of low-pressure tires: Low-pressure tires are mainly used for private cars. Function of high-pressure tires: High-pressure tires are mainly used for large trucks or passenger vehicles. Introduction to car tire-related content is as follows: Shock absorption: Car tires are one of the important components of a car, directly in contact with the road surface, and together with the car suspension, they mitigate the impact received during driving. Comfort: Ensuring the car has good ride comfort and smooth driving, ensuring good adhesion between the wheels and the road surface, improving the car's traction, braking, and passing ability, and bearing the weight of the car.
When the Toyota TPMS warning light appears, it indicates an issue with the Tire Pressure Monitoring System. Toyota's system uses sensors to monitor the pressure in each tire. If the light comes on, the problem could stem from a dead sensor battery, a software error in the system, or actual low tire pressure. I once experienced this with my Corolla—the light was on, but the tire pressure was fine, and it turned out to be an aging sensor. I recommend first checking the tire pressure manually with a gauge. If everything seems normal, take the car to a dealership or repair shop for a diagnostic scan. Don't delay too long, as false alarms might lead you to overlook real hazards, increasing fuel consumption or handling risks. During routine maintenance, ask the technician to inspect the system to prevent such issues. Overall, this is a maintenance reminder—don't ignore it.