GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

Place headlamp leveling switch to the UP position.

Headlamps move up.

Headlamps do not move. Refer to Headlight Leveling Inoperative

2

Place headlamp leveling switch to the DOWN position.

Headlamps move down.

Headlamps do not move. Refer to Headlight Leveling Inoperative

* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.