2008 Chevrolet Silverado 2500 Pickup Owner's Manual - Page 161
2008 Chevrolet Silverado 2500 Pickup Manual
Page 161 highlights
When the System Does Not Seem to Work Properly If the URPA system will not activate due to a temporary condition, the message PARKING ASSIST OFF will be displayed on the DIC and a red light will be shown on the rear URPA display when the shift lever is moved into R (Reverse). This occurs under the following conditions: • The driver disables the system. • The parking brake pedal is depressed. • The ultrasonic sensors are not clean. Keep the vehicle's rear bumper free of mud, dirt, snow, ice and slush. For cleaning instructions, see Washing Your Vehicle on page 5-118. • A trailer was attached to the vehicle, or a bicycle or an object was hanging out of the tailgate during the last drive cycle, the red light may illuminate in the rear display. Once the attached object is removed, URPA will return to normal operation. • A tow bar is attached to the vehicle. • The vehicle's bumper is damaged. Take the vehicle to your dealer/retailer to repair the system. • Other conditions may affect system performance, such as vibrations from a jackhammer or the compression of air brakes on a very large truck. If the system is still disabled, after driving forward at least 15 mph (25 km/h), take the vehicle to your dealer/retailer. OnStar® System OnStar uses several innovative technologies and live advisors to provide you with a wide range of safety, security, information, and convenience services. If your airbags deploy, the system is designed to make an automatic call to OnStar Emergency advisors who can request emergency services be sent to your location. If you lock your keys in the vehicle, call OnStar at 1-888-4-ONSTAR and they can send a signal to unlock your doors. If you need roadside assistance, press the OnStar button and they can contact Roadside Service for you. OnStar service is provided to you subject to the OnStar Terms and Conditions. You may cancel your OnStar service at any time by contacting OnStar. 2-67