Wiper on passenger side not working

SOURCE: windshield wiper

Check to see if the wiper motor moves the passenger side. If so, You may need to tighten the nut that connects the arm to the motor. Mine was stripped out because or snow & ice. So, I went to home depot and found a lock washer to fit.
Presto.... Nick from DE

SOURCE: passenger wiper quit working

motor only drives one arm to wipe. the passenger side arm might be disconnected. you have to reomve parts and visulally inspect. you might need a bolt or a washer, but should be an easy realignment fix.

SOURCE: 1999 Buick Century - passenger side power window does not work

Replace the Driver side window switch. These have a corrosion issue.

SOURCE: 2003 Buick. The pass side wiper stopped working,

the arm mechanism has a clip that pop off get a new clip and remove the access panel and move the arm over to the access area put the arm back into the hole socket and reattache clip , not the easiest repair but with a long pair of needle nose pliers you should have a better chance to complete repair. Some cars to access the arm the wiper motor must be disconnected and pulled out slightly then move wiper over and reattache pin arm into lever hole nstall clip.

SOURCE: 2000 Buick Century, Spavinaw, OK, December 26,

Remove the wiper arm and check the serrated hub to see if it sheared a pin holding it to the shaft. If it is ok, then you may have a broken/loose part in the linkage. Good luck!