Wipers willnot return to park position

Possible wiper linkage has broken/seperated from wiper motor. The wiper cowling covering the linkage assembly will need to be removed to inspect/repair

At the base of the wiper arm there is a plastic cap,pop this off ,underneath there is a nut that holds the arm in place ,if it gets loose the post will turn inside the blade.Just turn the wipers off and tighten the nuts with the blade in the parked position.

All you need to do is to remove the wiper blades of the driver side and then switch on and off the wipe so that the other wiper is seen to work in correct position. Now switch off and in the parked condition, fit back the driver side wiper to the stem.
The wiper must now work

remove the cowl under the windshield and remove the wiper arms which holds the blades on. remove the motor and put the new one in. be careful the wipers are in the correct position as the were before or they may not park

sounds like the PARK position on the wiper motor is not working,try unplugging the wires that go to the wiper motor, make sure they are clean,bth sides, gm had a problem with the printed circuit board on some years and models. hope this helps if not get back to me and we'll go from there.PLEASE rate my fix,as i strive to be the best Thanks Ray

Remove the wiper arms from the drive posts. Turn on your wipers with the engine running and shut the wipers off -- this will put the wiper drive posts in the park position.

Reinstall the wiper arms so the blades are about an inch above the bottom of the windshield.

Charlie

there is a circuit inside the wiper motor called the park circuit, it is what parks the wiper blades in the proper position on the windshield, it is defective. on your car it is park of the wiper motor assembly.

TRY THE FUSE OR THE WIPERS MOTOR IS BAD

just a suggestion: remove the wiper transmission from the motor. turn the motor on, then off so it returns to the park positon and re-connect the trans to it, with the trans in the park position as well. then try it. (make sure the motor is properly grounded.)

The problem could be a bent parking pall bracket. This is usually caused when you wipe snow from windshield using the wipers instead of brushing off. You need to remove both wipers and the cover from the drivers side. Remove the cover over the wiper motor assembly (held by a plastic button). On the right side of the wiper mechanism is a small tab (part of the wiper bracket). This tab needs to be straight for the wiper park pall to rest against.Carefully hammer this tab straight (or you may have to replace bracket, big job) Then cycle the wiper and you will see the assembly return to park position. Re-install all parts in reverse order.
Hope this works for you.