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  1. #1
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    Cadillac XLR

    2004 Thunder Gray XLR

    Default Convertible Top Troubles

    When I lower the top to the down position everything works as it should. When I raise the top to the closed position the Quarter glass' (small windows attached to the roof) don't return all of the way to their proper position. I have to manually push them inward or they will catch on the w/strip channels and impede top closing. Anybody else experienced this problem? Any fix?

  2. #2
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    The small windows do have adjustment. It is odd that they are both out of whack, leads me to believe something else in the top system is not right. I would look at all the rotational/moveable points on the top to make sure everything is good. To adjust them you have to take the interior cover material off them and you will see the adjustment screws/arms. They are more visible with the top halfway open/closed. It is a trial and error fix, just take your time and figure out which way each adjustment takes the window and make small changes until they fit correctly. Also check to make sure the weatherstrip they fit into on the body is in the correct place and not damaged/moved. You will be running the top up and down alot so make sure you have a battery charger on the car.

  3. #3
    Pit Crew cubby558's Avatar
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    '16 Z06, "06 XLR-V Infra Red-Sold, RII, RIII & RIV survivor, Mdwst Maurader

    Default

    Great advise from BeardBros on adjusting the windows. Go in small increments. It is always best to cycle the top with the car running! It runs the battery down fairly quickly otherwise.


    Cubby558

    "If you want to blend in, Ride the Bus"

  4. #4
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    If you have access to a Tech II tool the first thing I would always do is a top relearn. It's non-invasive, and these cars are all getting older, I'm guessing a re-learn is in everyone's future some day.

    Your issue does sound like more than a re-learn can fix, but if you can do it with a friend's Tech II or for free it's a good first step IMHO.

  5. #5
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    Cadillac XLR

    2004 Thunder Gray XLR

    Default Convertible Top Re-learn

    Quote Originally Posted by David_B View Post
    If you have access to a Tech II tool the first thing I would always do is a top relearn. It's non-invasive, and these cars are all getting older, I'm guessing a re-learn is in everyone's future some day.

    Your issue does sound like more than a re-learn can fix, but if you can do it with a friend's Tech II or for free it's a good first step IMHO.
    Did a re-learn yesterday with a Tech 2. Did not solve the problem. No error codes stored either. I'm pretty sure I need to adjust the windows, just not sure how to accomplish that without a lot of unnecessary drama. Saw a forum yesterday that said there is an instructional DVD available, just not where to get one.

  6. #6
    Convertible Top Troubles rexster314's Avatar
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    2006 Base Infrared

    Default

    Quote Originally Posted by wandrews2004 View Post
    Did a re-learn yesterday with a Tech 2. Did not solve the problem. No error codes stored either. I'm pretty sure I need to adjust the windows, just not sure how to accomplish that without a lot of unnecessary drama. Saw a forum yesterday that said there is an instructional DVD available, just not where to get one.
    A TECHII is almost useless without a shop manual when trying to diagnose some problems

  7. #7
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    Cadillac XLR

    2004 Thunder Gray XLR

    Default Quarter window adjustment

    Quote Originally Posted by BeardBros View Post
    The small windows do have adjustment. It is odd that they are both out of whack, leads me to believe something else in the top system is not right. I would look at all the rotational/moveable points on the top to make sure everything is good. To adjust them you have to take the interior cover material off them and you will see the adjustment screws/arms. They are more visible with the top halfway open/closed. It is a trial and error fix, just take your time and figure out which way each adjustment takes the window and make small changes until they fit correctly. Also check to make sure the weatherstrip they fit into on the body is in the correct place and not damaged/moved. You will be running the top up and down alot so make sure you have a battery charger on the car.
    I removed the trim and found 3 screws on each side. I adjusted the windows inward as far as the adjustment slots allow and it's better, but still catches slightly on both sides. I may try to
    elongate the adjustment slots slightly to get more range, but for now, at least I can pull in on each window and then continue to secure the top with the power button.

  8. #8
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    You can also check the weatherstrip that they fall into. It has an internal metal support that could be bent and causing fitment issues. See if you can open up the channel on them to see if the glass will fit better. If the top has been going down and pushing the glass on the wrong spot of those weatherstrips on the quarter they are for sure misaligned.

  9. #9
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    Sounds like you might have slightly bent arms on this. There's another thread somewhere on the site I believe they had to "nudge" them back into place. That wouldn't be something outside of normal repair methods for vehicle repair, but it's probably something you would really want the GM manual for. I wouldn't modify the adjustment slots.

    Quote Originally Posted by wandrews2004 View Post
    I removed the trim and found 3 screws on each side. I adjusted the windows inward as far as the adjustment slots allow and it's better, but still catches slightly on both sides. I may try to
    elongate the adjustment slots slightly to get more range, but for now, at least I can pull in on each window and then continue to secure the top with the power button.

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