Why is the tire pressure monitoring not displaying on the Envision?
3 Answers
If the tire pressure monitoring is not displaying on the Envision, it may be due to a dead battery in the tire pressure sensor. Below are the methods of tire pressure monitoring: 1. Direct Tire Pressure Monitoring: Direct tire pressure monitoring devices use pressure sensors installed in each tire to directly measure the tire's air pressure. The pressure information is transmitted wirelessly from inside the tire to a central receiver module, which then displays the tire pressure data for each tire. When the tire pressure is too low or there is a leak, the system will automatically issue an alert. 2. Indirect Tire Pressure Monitoring: The working principle of indirect tire pressure monitoring is that when the pressure in a tire decreases, the weight of the vehicle will cause the rolling radius of that wheel to become smaller, resulting in a faster rotation speed compared to the other wheels. By comparing the differences in rotation speeds between tires, the system monitors the tire pressure. Indirect tire pressure alert systems essentially rely on calculating the rolling radius of the tires to monitor air pressure.
I've been driving the Enclave for several years, and when the tire pressure monitoring suddenly stops displaying, I start by checking the simple things first. The sensors are inside the tires, and their batteries typically last five to seven years. When the battery dies, the sensor can't receive signals, and the display disappears. Incorrect system settings are also a common reason; try restarting it from the vehicle's menu and recalibrating the tire pressure values. If the sensors weren't installed properly after a tire change, or if mud on the wheel blocks the antenna, the signal won't transmit. Strong interference, like being near high-voltage power lines, can also cause temporary malfunctions. This is a major safety issue—incorrect tire pressure increases braking distance and the risk of a blowout. I always keep a manual tire pressure gauge on hand for emergencies. If all else fails, go to a specialized repair shop and don't delay. For prevention, mention checking the sensors during annual maintenance.
When encountering a situation where the tire pressure monitoring system doesn't display, I'd say it's mainly related to sensor issues. The small battery inside the sensor is depleted, which is common in older vehicles - simply replace it with a new one. System software bugs can also cause display loss; try disconnecting the vehicle battery for ten minutes and reconnecting it, which might reset the system. Don't overlook blown fuses - locate and replace the corresponding one in the fuse box. When the sensor position is misaligned or the wheel rotation signal is weak, signal interruption can cause no display. If it suddenly disappears while driving, I first manually check tire pressure to ensure safety before pulling over. Avoid parking in areas with many interference sources, and regular maintenance checks can prevent many problems.
