GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you review the power window operation and perform the necessary inspections?

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Go to Step 2

Go to Power Windows Operation

2

Verify that the express window function is inoperative.

Does the system operate properly?

--

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

3

Replace the left front window switch. Refer to Front Side Door Window Switch Replacement .

Did you complete the repair?

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Go to Step 4

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4

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Step 2