Here's what you should do:
1. Check your tire pressure: Use a reliable tire pressure gauge to check the pressure in each tire, including the spare. The correct pressure is listed on a sticker usually located on the driver's side doorjamb or in your owner's manual. Inflate tires to the specified pressure.
2. Drive the car: After inflating your tires, drive the car for a few miles (5-10 miles is usually sufficient). The TPMS sensors will detect the increased pressure, and the light should turn off automatically.
3. If the light remains on after driving: If the light persists after driving, there could be a few issues:
* Faulty TPMS sensor: One or more of the TPMS sensors in your tires might be malfunctioning. This requires professional diagnosis and likely sensor replacement.
* Low battery in TPMS sensor: Less common, but possible. Again, a mechanic needs to check this.
* Incorrect tire pressure: Double-check your tire pressure. Even a small difference can trigger the light.
* Other electrical problems: A problem with the TPMS module itself or related wiring.
If driving doesn't reset the light, it's best to take your Alero to a mechanic or tire shop for diagnosis. They have the tools to check the TPMS system and identify the problem. Trying to reset it manually without addressing the underlying cause won't solve the issue and could indicate a bigger problem.
