2010 Chevrolet Cobalt Owner's Manual - Page 124

How to Turn Off the System Alarm To turn off the system alarm, do one of the following: . PASS-Key® III+ Electronic Immobilizer Operation Your vehicle has PASS-Key® III+ (Personalized Automotive Security System) theft-deterrent system. PASS-Key® III+ is a passive theft-deterrent system. The system is automatically armed when the key is removed from the ignition. You do not have to manually arm or disarm the system. The security light will come on if there is a problem with arming or disarming the theft-deterrent system. When the PASS-Key® III+ system senses that someone is using the wrong key, it prevents the vehicle from starting. Anyone using a trial-and-error method to start the vehicle will be discouraged because of the high number of electrical key codes. When trying to start the vehicle if the engine does not start and the security light comes on, there may be a problem with your theft-deterrent system. Turn the ignition off and try again. Press the lock button on the remote keyless entry transmitter. The system will then re-arm itself. Press the unlock button on the remote keyless entry transmitter. This will also disarm the system. Insert the key in the ignition and turn it on. This will also disarm the system. . . How to Detect a Tamper Condition If you hear three chirps when you press the unlock, lock, or trunk release buttons on the remote keyless transmitter, it means that the content theft security system alarm was previously activated. PASS-Key® III+ Electronic Immobilizer See Radio Frequency Statement on page 8‑19 for information regarding Part 15 of the Federal Communications Commission (FCC) Rules and RSS-210/211 of Industry and Science Canada. 3-18