GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

Operate each window up and down from the left front window switch.

Each window operates quietly and smoothly without sticking.

Left front power window is inoperative. Go to Power Window Inoperative - Left Side Front .

2

Operate the right front window from the individual switch.

The window operates quietly and smoothly, without sticking.

    • Right front power window is inoperative from left front window switch. Go to Power Window Inoperative - Right Side Front .
    • Right front power window is inoperative from right front window switch. Go to Power Window Inoperative - Right Side Front .
    • Right front power window is inoperative from both window switches. Go to Power Window Inoperative - Right Side Front .
    • All power windows are inoperative. Go to Power Windows Inoperative - All .

3

  1. Make sure the left front window is closed.
  2. Press the left front window switch DOWN momentarily past the first defeat.

The left front window continues to the fully down position.

Express down feature is inoperative. Go to Power Window Express Down Function Inoperative .

4

Open and close the vent windows from the interior lamps and the multifunction switch.

The window operates quietly and smoothly, without sticking.

    • Rear quarter windows are inoperative. Go to Rear Quarter Window Inoperative .
    • One rear quarter window is inoperative. Go to Rear Quarter Window Inoperative .