Low temperatures cause the air inside tires to contract, reducing their pressure. This can trigger the tire pressure monitoring system (TPMS) to illuminate a warning light on the vehicle’s dashboard. For example, a tire inflated to the correct pressure on a warm day might register as underinflated after a significant temperature drop overnight.
Understanding the relationship between ambient temperature and tire pressure is crucial for safe and efficient vehicle operation. Properly inflated tires maximize fuel economy, enhance handling characteristics, and extend tire lifespan. Historically, drivers relied on manual gauges to check tire pressure, making them susceptible to overlooking underinflation caused by cold weather. Modern TPMS technology provides a real-time alert, improving safety and reducing the likelihood of tire-related problems.