2008 Jeep Liberty Owner's Manual - Page 14

14 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE WARNING! Never leave children alone in a vehicle. Leaving children in a vehicle unattended is dangerous for a number of reasons. A child or others could be seriously or fatally injured. Don't leave the key in the ignition. A child could operate power windows, other controls, or move the vehicle. Key-In-Ignition Reminder If you open the driver's door and the key is in the ignition, a chime will sound to remind you to remove the key. NOTE: The Key-In-Ignition reminder only sounds when the ignition key is placed in the LOCK or ACC position. SENTRY KEY The Sentry Key Immobilizer System prevents unauthorized vehicle operation by disabling the engine. The system does not need to be armed or activated. Operation is automatic, regardless of whether the vehicle is locked or unlocked. The system uses ignition keys, which have an embedded electronic chip (transponder), to prevent unauthorized vehicle operation. Therefore, only keys that are programmed to the vehicle can be used to start and operate CAUTION! An unlocked vehicle is an invitation to thieves. Always remove the key from the ignition, and lock all doors when leaving the vehicle unattended.