Here's a general guide, but always consult your owner's manual for the most accurate and safe instructions specific to your vehicle. The owner's manual will have diagrams showing the exact location of the adjustment screws.
General Steps:
1. Park the vehicle: Park your Cobalt on a level surface, about 25 feet away from a wall or garage door.
2. Turn on the headlights: Ensure your headlights are turned on. This makes it easier to see the beam pattern.
3. Locate the adjustment screws: These are usually small screws located either on the top and/or side of the headlight housing. They may be covered by a plastic cap or located behind an access panel. Look closely around the headlight assembly; they're often near the back.
4. Identify the adjustment directions: Each screw typically controls vertical (up/down) or horizontal (left/right) adjustment. There's usually a marking near the screws or in your owner's manual indicating the direction each screw adjusts the beam. A common convention is that turning a screw clockwise raises the beam and turning it counterclockwise lowers it. Horizontal adjustment typically moves the beam left or right.
5. Adjust the headlights: Make small adjustments to the screws, checking the beam pattern on the wall after each adjustment. You want the headlights aimed slightly downward and to the right. Avoid making large adjustments at once.
6. Check the beam pattern: The goal is to have a relatively even and level beam pattern. If your beam is too high, you might blind oncoming drivers. If it's too low, you won't have adequate illumination. The ideal pattern is usually described in your owner's manual.
7. Repeat as needed: Continue making small adjustments until you achieve the correct beam pattern.
Important Considerations:
* Safety First: Always work in a well-lit area and have someone assist you if necessary.
* Owner's Manual: This is the most crucial piece of information. Your owner's manual will provide the precise location and directions for adjusting your headlights.
* Professional Adjustment: If you are uncomfortable adjusting your headlights yourself, or if you cannot find the adjustment screws, take your vehicle to a qualified mechanic or auto repair shop.
Improperly adjusted headlights can be dangerous and could lead to accidents. Take your time, and if you're unsure about anything, consult your owner's manual or a professional.
