2008 Jeep Liberty Owner's Manual - Page 192

192 INSTRUMENT PANEL AND CONTROLS CAUTION! The TPMS has been optimized for the original equipment tires and wheels. TPMS pressures and warning have been established for the tire size equipped on your vehicle. Undesirable system operation or sensor damage may result when using replacement equipment that is not of the same size, type, and/or style. Aftermarket wheels can cause sensor damage. Do not use aftermarket tire sealants or balance beads if your vehicle is equipped with a TPMS, as damage to the sensors may result. (Refer to "Tire Inflation Pressures" under "Tires - General Information" and to "Tire Pressure Monitor System (TPMS)" in Section 5 of this manual for more information). 5. Electronic Throttle Control (ETC) Warning Light - If Equipped This light informs you of a problem with the Electronic Throttle Control system. If a problem is detected, the light will turn on while the engine is running. If the light remains lit with the engine running your vehicle will usually be drivable and not need towing, however see your authorized dealer for service as soon as possible. If the light is flashing when the engine is running, you may experience power loss, an elevated/rough idle, and increased brake pedal effort, and your vehicle may require towing. Immediate service is required. The light will turn on when the ignition switch is first turned ON, and remain on briefly as a bulb check. This is normal. If the light does not turn on during starting, have the system checked by an authorized dealer.