GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Power Sunroof System Check?

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Go to Step 2

Go to Power Sunroof System Check

2

Press and hold the sunroof control switch in the OPEN position.

Does the auto open function operate properly?

--

Go to Step 3

Go to Step 5

3

  1. Close the sunroof.
  2. Press and hold the sunroof control switch in the OPEN position.
  3. The sunroof should open and quietly stop at the FULL OPEN position.

Did you hear a clunk or a click noise when the sunroof reaches the mechanical stop?

--

Go to Step 4

Go to Step 5

4

  1. Open the sunroof.
  2. Press and hold the sunroof control switch in the CLOSE position.
  3. The sunroof should automatically stop at the FULL CLOSE position.

Does the sunroof close and then move into the VENT position?

--

Go to Step 5

Go to Power Sunroof System Check

5

Replace the sunroof motor.

Is the repair complete?

--

Go to Power Sunroof System Check

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