The 2008 Chevy Malibu comes programmed with a keyless entry system. Though your General Motors dealer should provide you with two keyless remotes at the time of purchase, the key fob may malfunction or stop working due to prolonged usage or after you change the remote battery. Although General Motor dealers or mobile electronics professionals can reprogram the key fob, they may charge a fee. Save money and hassle by resetting your key fob yourself.
Sit inside the vehicle, and close and lock all of the doors. Hold the lock on the driver's door in the "Lock" position.
Insert the key in the ignition. Turn the ignition key to the "On" position and then the "Off" position, and repeat.
Release the switch on the driver's door. Listen for the locks to cycle once, indicating that you have activated the program mode.
Press the "Lock" and "Unlock" buttons on the key fob simultaneously, and hold them down for about 15 seconds. Listen for the doors to cycle to indicate that you have reprogrammed the remote.
Turn the ignition key to the "Run" position to exit the programming mode.
Press the "Lock" button on the remote. Listen for the doors to lock and unlock to indicate that you have programmed the remote to the vehicle's system.