My Toyota highlander drivers window seems to want to keep going up at the top, stopping with a healthy bang. I noticed it also seems not to go down all the way (by about 1/4"). I'm currently interrupting the auto up cycle near the top and deliberately inching it closed to prevent this.
I've replaced regulators in other cars and could order and install a new one but I wonder if anyone has encountered this and can suggest a GRM solution. Do they ever just get lost and have the ability to re-learn?
Usually travel is limited by limit switches. The fact that it's not going down as far as it should and that it's coming up too far sounds like a gear has slipped on a shaft or similar when the window was being lowered.
In reply to daeman :
That seems like a plausible explanation. I may open it up and poke around after some YouTube how-to's
In reply to OHSCrifle :
No problems, this guy is pretty annoying, but his strip down and explanation of the motor is decent.
This is interesting. Seems to indicate the motors can "re-learn" top and bottom limits.
https://youtu.be/raupT_IjdhU
and this
https://youtu.be/vsXyQ2kqOrM
NOHOME
MegaDork
10/9/21 7:16 a.m.
FRS is famous for this. Mine has had all kind of interesting self learned interpretations of what is up down or open. Ussually caused by ice-frozen resitance to opening.
On the FRS rolling the window down and holding for a few seconds re-sets the system. Might be a similar thing in your case. Dealer is very nice about this, they only charge $50 to do it for you.
In reply to NOHOME :
"Very nice".
..this seems like the culprit since the motor is fine and the track doesn't bind. When I replaced the battery it must have gotten a little lost.
If the window is tipping out of the track near the bottom - does this mean the scissor/regulator assembly is worn out?
(passenger side does not do this)
In reply to OHSCrifle :
That seems wrong. If you put the window about halfway up, can you rock it fore and aft more than the other side?
Could be a damaged regulator, or it might have come loose from the door.
Streetwiseguy said:
In reply to OHSCrifle :
That seems wrong. If you put the window about halfway up, can you rock it fore and aft more than the other side?
Could be a damaged regulator, or it might have come loose from the door.
Both sides are about the same when I hold the glass and rock it at half way up.
DS glass gets down near the bottom and tips forward. Seems like the regulator is worn out so I think I will order a new one.
I'd pop the door panel off first and make sure it's not just loose where it bolts to the door.
Streetwiseguy said:
I'd pop the door panel off first and make sure it's not just loose where it bolts to the door.
High five to you Streetwiseguy!
After some YouTube research I removed the interior door panel and found that one of the two bolts that hold the bottom of the regulator was..missing.
It apparently backed out after nine years. I found the bolt in the bottom of the door cavity and put it back.. and this one is fixed.
thanks to daeman and NOHOME as well.
In reply to OHSCrifle :
You are welcome. I might have seen that once or a hundred times through my career.
You can actually raise a glass to 240 Volvos, because that's where at least 50% of the loose ones were.
