The headlights on your Toyota Corolla need to be adjusted so that you can see at night. Headlights that are not properly adjusted could blind oncoming traffic, which could, in turn, cause a car accident. Headlights on your Corolla normally only need to be adjusted when you replace the headlight housing assembly and the housing does not come preadjusted from the factory.
Park your Corolla 25 feet away from a closed garage door, facing the door.
Turn the headlights on by rotating the headlight stalk on the left side of the steering wheel away from you.
Open the bonnet and locate the two adjustment screws on the top of the headlight housing assembly. Turn the adjustment screws until the headlight beams on both headlights overlap by about 40 per cent. With the Corolla parked 25 feet away from the door, the centre of the headlight beams should be pointed directly in front of the car and the centre of the headlight beams should be positioned at the bottom of the garage door where the door meets the ground.