2008 Jeep Liberty Owner's Manual - Page 150

150 UNDERSTANDING THE FEATURES OF YOUR VEHICLE Vehicles equipped with a manual transmission may need to be shifted into a lower gear to climb hills without speed loss. REAR PARK ASSIST SYSTEM - IF EQUIPPED The Rear Park Assist System is a driver aid that senses for obstacles behind the vehicle and provides both visible and audible warnings to indicate the range of the object. System Usage Precautions NOTE: • Ensure that the rear bumper is free of dirt and debris to keep the Rear Park Assist System operating properly. • Jackhammers, large trucks, and other vibrations could affect the performance of the Rear Park Assist System. • When you turn off the Rear Park Assist System, the instrument cluster will display "PARK ASSIST DISABLED." Furthermore, once you turn off the Rear Park Assist System, it remains off until you turn it on again, even if you cycle the ignition key. WARNING! Speed Control can be dangerous where the system can't maintain a constant speed. Your vehicle could go too fast for the conditions, and you could lose control. An accident could be the result. Don't use Speed Control in heavy traffic or on roads that are winding, icy, snow-covered, or slippery.