2007 Jeep Liberty Owner's Manual - Page 216

216 STARTING AND OPERATING MANUAL TRANSMISSION Clutch Interlocking Ignition System 2WD Models Only - Manual transmission vehicles are equipped with a clutch interlock safety feature. The clutch pedal must be fully depressed to allow cranking of the engine. 4WD Models Only - The exception to this clutch interlock is 4WD models equipped with a manual transmission. For these models, the clutch interlock feature is overridden when the vehicle is operated in 4L to enhance off-road capability. Refer to "Starting Procedures - Manual Transmission (4WD Models Only)" in this section. 6-Speed Manual Transmission WARNING! You or others could be injured if you leave the vehicle unattended without having the parking brake fully applied. The parking brake should always be applied when the driver is not in the vehicle, especially on an incline. Follow the shift pattern on the gearshift knob. NOTE: The backup lights will come on when your vehicle is in R (Reverse) gear and the ignition is in the ON position.