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The Cadillac ATS may experience issues with its rear differential such as idle gear noise and gear grinding. It is essential to maintain your tires in top condition to prevent accidents. Eventually, you may encounter problems with this car component, leading to premature tire wear, feathering, or cupping issues. Regularly monitor tire pressure and check for any damage, especially after hitting a pothole. The rear differential part may loosen over time and will eventually require replacement to avoid potential accidents on the road. It is recommended to replace your tires every 30,000 to 50,000 miles for optimal performance and safety.
If you hear grinding sounds or notice fluid leaks coming from the rear differential of your Cadillac STS when making turns, it likely requires replacement or repair.