If your tire pressure warning light (TPMS) remains illuminated even after adding air, there could still be an issue with one or more of your tires. A tire may remain underinflated, have a slow air leak, or be affected by colder weather, which can cause tire pressure to drop.

The first step is to check all four tires when they are cold using a reliable tire pressure gauge. Compare the readings with the recommended pressure levels listed on the sticker inside the driver’s door. Remember, you should follow the vehicle manufacturer’s recommended pressure, not the maximum pressure printed on the tire itself.

If all your tires have the correct pressure but the warning light stays on, your vehicle may need a TPMS reset. This can sometimes happen after a tire rotation, tire replacement, or other maintenance work involving the wheels.

Another possibility is that one of the tire pressure sensors is malfunctioning or has a dead battery. If the warning continues to appear, having the TPMS system inspected by a professional can help identify the problem before it becomes a bigger issue. Never ignore your tire pressure warning light, as properly inflated tires are essential for safe driving.