2008 Jeep Liberty Owner's Manual - Page 314

314 STARTING AND OPERATING NOTE: Increased noise levels at the end of the steering wheel travel are considered normal and do not indicate that there is a problem with the power steering system. Upon initial start-up in cold weather, the power steering pump may make noise for a short amount of time. This is due to the cold, thick fluid in the steering system. This noise should be considered normal, and it does not in any way damage the steering system. CAUTION! Prolonged operation of the steering system at the end of the steering wheel travel will increase the steering fluid temperature and it should be avoided when possible. Damage to the power steering pump may occur. WARNING! Continued operation with reduced power steering assist could pose a safety risk to yourself and others. Service should be obtained as soon as possible. ELECTRONIC BRAKE CONTROL SYSTEM Your vehicle is equipped with an advanced electronic brake control system commonly referred to as ESP. This system includes ABS (Anti-Lock Brake System), TCS (Traction Control System), BAS (Brake Assist System), HSA (Hill Start Assist), ERM (Electronic Roll Mitigation), and ESP (Electronic Stability Program). These systems work together to enhance both vehicle stability and control in various driving conditions.