1. Opening the hood: This is the first and most obvious step.
2. Removing the access panel/cover: There's usually a plastic cover or access panel located behind the headlight assembly. This might require removing a few screws or clips. The exact location and method will depend slightly on the trim level of your Malibu. Consult your owner's manual for the exact location and procedure.
3. Possibly disconnecting a wire or connector: Sometimes there's a small electrical connector holding the bulb assembly in place that needs to be disconnected.
4. Rotating or removing a retaining ring or clip: The bulb itself is held in place by a retaining ring or clip. You'll likely need to rotate this to release the bulb. Be careful not to touch the glass part of the bulb with your bare hands. Use a clean cloth or glove.
The amount of disassembly varies slightly depending on the exact model year and trim level of your 2009 Chevy Malibu. Your owner's manual is the best resource for precise instructions and diagrams. It will show you exactly what to remove and how to do it properly for your specific vehicle.
