NHTSA Complaint #11495469 — 2017 CHEVROLET BOLT EV

Since the car was new, the windshield wipers have had a software error that can disable the wipers in snowy weather. It is not unusual for one or the other wiper to stop working for no apparent reason in snowy conditions. If the passenger's side stops working, it isn't too bad, but if the driver's side wiper stops working, then it traps the other wiper below it, preventing both from working. Sometimes after several minutes, the passenger wiper will push the driver wiper up about 1/3 of the way up the windshield, at which point it will kick in once, then stop working again. Stopping and restarting the car generally will not help, but leaving it off overnight will usually reset the software and the wipers start working normally again. It seems like it is a software bug with detecting if the wipers are frozen/stuck, that incorrectly thinks that a wiper is stuck, even when it is not, and decides to disable the wiper. This has happened many, many times, I should have reported it years ago. I attached a couple of pictures from a dashcam video one of the times it happened, it's harder to see from pictures than the video, but in the first picture the bottom, passenger side wiper is down, and the second picture it is trying to move up, but is blocked by the top/driver side wiper. It may appear that the wiper is frozen and stuck, but it is not, and after several minutes the bottom wiper was able to move the disabled top wiper significantly up the windshield. Chevy needs a software update to ensure the wipers actually work properly, especially in bad weather conditions.