2011 Chevrolet Camaro Owner's Manual - Page 261

Driving and Operating . 9-47 A trailer was attached to the vehicle, or an object was hanging out of the trunk during the last drive cycle. Once the object is removed, URPA will return to normal operation. The vehicle's bumper is damaged. Take the vehicle to your dealer to repair the system. Other conditions, such as vibrations from a jackhammer or the compression of air brakes on a very large truck. Fuel Use of the recommended fuel is an important part of the proper maintenance of this vehicle. To help keep the engine clean and maintain optimum vehicle performance, we recommend the use of gasoline advertised as TOP TIER Detergent Gasoline. Look for the TOP TIER label on the fuel pump to ensure gasoline meets enhanced detergency standards developed by auto companies. A list of marketers providing TOP TIER Detergent Gasoline can be found at www.toptiergas.com. . . If the system is still disabled, after driving forward at least 40 km/h (25 mph), take the vehicle to your dealer. The eighth digit of the Vehicle Identification Number (VIN) shows the code letter or number that identifies the vehicle's engine. The VIN is at the top left of the instrument panel. See Vehicle Identification Number (VIN) on page 12‑1.