Here's the process:
1. Check and Inflate Tires: Use a reliable tire pressure gauge to check the pressure in each tire, including the spare. Inflate them to the recommended pressure listed on a sticker usually located on the driver's side doorjamb or in your owner's manual.
2. Drive the Car: Drive the car for 5-15 miles at a speed above 20 mph. This allows the TPMS sensors to transmit data to the car's computer.
3. Light Should Go Out: After driving, the TPMS warning light should turn off if the tire pressures are correct.
If the light stays on after driving:
* Low Tire Pressure: Double-check your tire pressures. Even a slightly low tire can trigger the light.
* Sensor Malfunction: One or more of your TPMS sensors might be faulty. You'll need to have a mechanic diagnose this issue. They may need to replace a sensor or reprogram the system.
* Other Issues: Less common reasons include problems with the TPMS receiver or other parts of the system. A professional diagnosis is necessary.
If you've followed these steps and the light remains on, it's best to take your Impala to a mechanic or tire shop for proper diagnosis. Trying to force a reset without addressing the underlying problem is not recommended.