2007 Chrysler Sebring Owner Manual Sedan - Page 240

240 STARTING AND OPERATING WARNING! Prolonged use of limited use spare, or incorrect tire size of front wheel, may damage the transaxle differential and result in loss of vehicle mobility and could result in loss of vehicle control. Tire Spinning When stuck in mud, sand, snow, or ice conditions, do not spin your vehicle's wheels above 30 mph (48 km/h) for more than 30 seconds continuously. Refer to: "Freeing A Stuck Vehicle" in Section 6 of this manual for additional information. Tread Wear Indicators Tread wear indicators are in the original equipment tires to help you in determining when your tires should be replaced. These indicators are molded into the bottom of the tread grooves. They will appear as bands when the tread depth becomes 1/16 inch (2 mm). When the tread is worn to the tread wear indicators, the tire should be replaced. Many states have laws requiring tire replacement at this point.