2009 Chevrolet Silverado 2500 HD Regular Cab Owner's Manual - Page 402
2009 Chevrolet Silverado 2500 HD Regular Cab Manual
Page 402 highlights
SERVICE TRAILER BRAKE SYSTEM - This message will be displayed when there is a problem with the ITBC system. If this message persists over multiple ignition cycles there is a problem with the ITBC system. Take the vehicle to an authorized GM dealer to have the ITBC system diagnosed and repaired. If either the CHECK TRAILER WIRING or SERVICE TRAILER BRAKE SYSTEM message is displayed while driving the vehicle, power is no longer available to the trailer brakes. When traffic conditions allow, carefully pull the vehicle over to the side of the road and turn the ignition off. Check the wiring connection to the trailer and turn the ignition back on. If either of these messages continues, either the vehicle or trailer needs service. An authorized GM dealer may be able to diagnose and repair problems with the trailer. However, any diagnosis and repair of the trailer is not covered under the vehicle warranty. Please contact your trailer dealer for assistance with trailer repairs and trailer warranty information. Driving with a Trailer { CAUTION: When towing a trailer, exhaust gases may collect at the rear of the vehicle and enter if the liftgate, trunk/hatch, or rear-most window is open. Engine exhaust contains carbon monoxide (CO) which cannot be seen or smelled. It can cause unconsciousness and even death. To maximize safety when towing a trailer: • Have the exhaust system inspected for leaks and make necessary repairs before starting a trip. • Never drive with the liftgate, trunk/hatch, or rear-most window open. • Fully open the air outlets on or under the instrument panel. • Adjust the Climate Control system to a setting that brings in only outside air and set the fan speed to the highest setting. See Climate Control System in the Index. For more information about carbon monoxide, see Engine Exhaust on page 2-55. 4-74