The antitheft system on a 2006 Chevrolet Malibu is activated whenever the doors are locked using the keyless entry remote. This system is designed to prevent the vehicle from being operated by an unauthorized user.
The antitheft system uses the horn and lights to draw attention to the vehicle to discourage would-be thieves. Occasionally, this system needs to be reset when the alarm is triggered accidentally. The keyless entry remote and the ignition key are required to properly reset this system.
Stand outside the vehicle with the keyless entry remote. Press and hold both the lock and unlock buttons of the remote at the same time.