Things You'll Need:
- Tire pressure gauge
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Step 1
Check the tire pressure (PSI) of your Chevy Impala first. Insert a tire pressure gauge into the tire's valve stem (a nozzle on the side of the tire). Press the gauge down and get a reading. Look for a sticker on the driver's side door that lets you know what the maximum tire pressure should be. The newer models of the Chevy Impala will let you know the tire pressure in the Driver Information Center, a gauge on the driver's side dashboard.
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Step 2
Watch for unusual wear in the tires. Tires should wear evenly. Wear around the outside of the tires or only in the middle may indicate over or under-inflation. If you notice wear in the same spots on all the tires, you may need to have them rotated. With Chevy Impalas, tires need rotation about every 6,000 to 8,000 miles.
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Step 3
Inspect the tread. There are two ways to do this. Insert a penny into a tire groove with Lincoln's head upside down. If you see all of Lincoln's head, the tire's too worn and needs replacing. You can also look for the tire wear bars across the treads. When you see these bars, the tire needs replacing.
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Step 4
Inspect the tires for nails, damage or cracking and replace your tires as needed.
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Step 5
Replace Chevy Impala tires with the correct sizes if your tires need replacing. The front and rear tire sizes are the same. Depending on the vehicle year, the tires should be P225/60R16, P225/55R17, P235/50R18, P235/55R17 or P255/50ZR17.
