I have a 2007 scion TC .This weekend I had battery cables cleaned due to corrosion. Also had water added to battery. Spark plugs were also changed. Now my driver window & sunroof roll down n up SUPER SLOW. Even stopping occasionally during process. The buttons on driver side to control passenger window are not working at all either. This all started after the few maintenance things that were performed that I listed above.Any ideas why??

 

I almost feel like you potentially have a battery issue.

One thing you can try is reset your car by removing all the battery cables and leaving it unplugged from the battery for half an hour or so (not sure how long it takes to reset after the positive terminal is disengaged). Plug it back together and see if there's any change.

 

do the test :
plug in other battery from other car ( ex. from somebody from your family ) and You will se if they will work good then U need new battery.

The buttons on driver side to control passenger window are not working at all either.

hmmm this is regular thing when U disconecting battery or when your battery was empty.

all U have to do is pull the window switch ( in passenger door ) and hold for 10sec. after that U will be able to remote passenegr window from drivers panel.

same thing with sunroof - if it doesnt open automatically just hold the bottom for 10 sec.


hmm U add WATER TO BATTERY ? U should add some acid ( sorry i dont know what kind of ) but for sure not water.

 

my driver side window has always been slow, way slower than my passenger side atleast. its annoying. i feel ya man.

 

The motor is wearing out.