GM Service Manual Online
For 1990-2009 cars only

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Vertical Dial Setting

Lower Limit

Upper Limit

Horizontal Setting Internal to Aimer

Vertical Dial Range

Low Beam Veritcal

2.0 in

-2.5 in

+2.0 in

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0.0-+4.5 in

Low Beam Horizontal

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-4.0 in

+4.0 in

-4.0-+4.0 in

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High Beam Horizontal

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-4.0 in

+4.0 in

-4.0-+4.0 in

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Vertical Aim Only

11.0 in

-2.5 in

+2.0 in

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+9.0-+13.5 in