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2026-10-27 · 3 min read

TPMS Tyre Pressure Warning Light — What to Do

The TPMS light means one or more tyres are significantly under-inflated. Here's how to check which tyre is low, how to inflate it correctly, and why the light sometimes stays on after you've pumped up the tyre.

TPMS Tyre Pressure Warning Light — What to Do

仪表盘亮起感叹号加轮胎剖面图的橙色灯——这是 TPMS(胎压监测系统)警告,代表至少一条轮胎气压低于安全阈值。

TPMS 什么时候会触发?

大多数 TPMS 系统在气压低于推荐值约 **25%** 时触发警告。

例如推荐气压 32 PSI,TPMS 大约在低于 24 PSI 时亮灯。

换句话说,灯亮的时候气压已经明显不足,不是刚开始偏低就会亮。

灯亮了怎么做?

找最近的加油站或汽配店检查气压——用气压表逐一测量四条轮胎(包括备用胎,如果有直接传感器)。

把偏低的轮胎充至车门框贴纸上的推荐气压(通常 30–35 PSI)。

充完气后正常行驶几公里,TPMS 系统会重新读取气压,警告灯应熄灭。

充完气了灯还是亮着——为什么?

**系统需要时间重置**:部分车型 TPMS 需要行驶几公里或手动重置才会熄灭。

**传感器本身故障**:轮胎内的传感器电池寿命约 5–10 年,老化后可能误报或无法正常通信。

**换了轮胎没有重新匹配传感器**:更换轮胎后,新传感器的 ID 需要配对到车辆系统,否则灯持续亮。

**仍然有一条轮胎气压偏低**:重新确认全部四条,有时候会漏查。

TPMS 和定期检查气压

TPMS 是安全底线,不是日常气压管理工具——它报警的时候气压已经很低。

建议每月手动检查一次气压,不要依赖 TPMS 来「告知」你什么时候该充气。

轮胎气压低有什么危险?

轮胎变形加剧,高速行驶热量积累,更容易爆胎。

油耗增加,轮胎单边磨损加速。

处理(转向反应)和刹车距离都会受影响。

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