2001 Chevy Impala Power Window goes down but not up? Driver

Pull your door panel off and see if you are getting voltage to the motor. See what the voltage is when your hitting the switch

Your driver window switch is worn out.

There is a temporary fix if you are careful.

Remove the switch panel by removing the two screws in the handgrip well of the door panel.

Lift the rear of the switch panel slightly and pull it to the rear to disengage it from the door panel.

Disconnect the wiring harness connectors from the master switch assembly and the mirror switch.

Now remove the master switch from the switch panel by releasing the four tabs (two on each side) using a thin blade screwdriver.

Here comes the careful part. Lift the driver switch rocker at one end with a screw driver or other prying instrument. It will pop off with very light pressure.
Also, remove the other rockers.

Remove the top cover of the switch case. It has
six tabs that protrude into slots (3 on each side) using the thin blade screwdriver. Disengage three on one side, then the other.

This will expose the actual switch actuators. Remove the switch actuators for the drivers window and one of the rear windows by applying sideward pressure at the pivot point in the center of the switch. This takes a bit of persistence, but the switch actuators will come out.

Make sure the springs are in place when you move the actuators to the other positions. (Drivers-to-rear and rear-to-drivers). They snap back into their pivot point almost like they belonged there.

Reinstall the top cover of the switch case by placing it into position over the switches and pushing it down until the six tabs snap into place.

Snap the Rockers back into their positions and actuate the switches to make sure they spring back to center and operate smoothly.

It's time to power check the switch.
Put the switch assembly into the switch panel until the plastic tabs lock it in place. Connect the harness connectors. Turn the ignition switch to the on position and operate the switch.
Now, it should be one of the rear windows that doesn't work.
Connect the mirror connector and reinstall the panel into the door panel.

If all that is more than you want to undertake, Dorman makes a very good aftermarket Master Switch Assembly for the Impala and they are for sale and auction on the internet. You can get one from a GM dealer for about $120, but you can do a lot better with some of the internet sellers. I got mine for $46. And later discovered one for about half that.

I hope this info isn't too late to help. Good luck.

TakeChargeSarge