How to Adjust a 1997 LS400 Headlight

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    • 1). Park your vehicle on a flat surface and pop the hood. Turn your vehicle's lights on the bright setting. Lift the hood.

    • 2). Locate the adjustment bolts on the headlight assemblies; they are small, aluminum bolts with a toothed lock washer.

    • 3). Use a 10 mm socket wrench or end wrench to turn the bolt on the back of the assembly. Clockwise turns the headlight to the right and counterclockwise turns it to the left. Adjust each light beam to match the other.

    • 4). Use the same wrench to turn the bolt on the side of the assembly. Clockwise points the headlight further upward and counterclockwise points it downward. Adjust each assembly to match.

    • 5). Close the vehicle's hood and take the car for a test drive in dim light or dark. If the light assemblies still need adjustment, repeat the process.

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