Why is the Cadillac tire pressure not displaying numerical values?
3 Answers
Cadillac tire pressure monitoring not displaying may be due to excessive tire pressure. If it still doesn't show after deflation, the sensor might be damaged. Below are the main functions of Cadillac tire pressure monitoring: 1. Preventing accidents: The tire pressure monitoring system is an active safety device that can alert the driver in time when there are dangerous signs in the tires, prompting them to take appropriate measures, thereby avoiding serious accidents. 2. Extending tire life: With the tire pressure monitoring system, the tires can always be kept working within the specified pressure and temperature range, reducing tire damage and extending their service life. Data shows that driving with insufficient tire pressure, when the tire pressure is 10% below the normal value, reduces tire life by 15%. 3. Reducing suspension wear: When the tire pressure is too high, the tire's shock absorption effect is reduced, increasing the burden on the vehicle's shock absorption system. Long-term use can cause significant damage to the engine chassis and suspension system. If the tire pressure is uneven, it can easily cause braking deviation, thereby increasing the wear on the suspension system.
My Cadillac’s tire pressure display suddenly went blank last week. The dealership checked it and said the sensor battery was dead. Nowadays, many tire pressure monitoring sensors have a battery life of just 5-7 years, and replacing one costs over 600 yuan. It could also be that the sensor was damaged—after I hit a deep pothole, one wheel stopped showing data. Another possibility is a faulty receiver module, which is located under the chassis and prone to water damage or rust. I’d suggest first checking whether all four wheels aren’t displaying data or just one. If it’s just one, it’s likely a sensor issue. If none are displaying, it could be a module or system failure, and you’d need to connect a diagnostic tool to read the error codes to be sure.
Don't panic if tire pressure isn't displayed, troubleshoot in three steps: Hardware-wise, check if the sensor is damaged or blocked by foreign objects; Signal-wise, be aware of strong signal interference sources inside the car or system hibernation due to prolonged parking; System-wise, try holding the tire pressure reset button for 10 seconds to force a refresh, or disconnect the negative battery terminal for 5 minutes to reset. Last year, my car had a similar issue, which turned out to be caused by aftermarket electronic devices interfering with the signal. 4S shop inspection fees are typically 200, while replacing an OEM sensor costs around 800 per unit, and aftermarket ones are 300 but may have unstable compatibility.
