What to Do When the Rear Window Glass Doesn't Lower Completely?
2 Answers
If the rear window glass doesn't lower completely, you can turn on the ignition switch, hold the switch in the upward position, and keep it held. After the glass rises to the top, continue holding for more than 3 seconds. Release the switch and immediately press and hold it again to lower the glass completely for more than 3 seconds. Then, repeat the upward movement once more to complete the initialization procedure, restoring the window's up-and-down function. Reasons why the rear window glass doesn't lower completely include: 1. The glass's mud guard groove is deformed or damaged. 2. Loose screws on the window regulator. 3. Damage to the window regulator. 4. Some misalignment in the guide rail installation position.
A few days ago, the rear window of my old car got stuck and wouldn’t roll down completely—it was so frustrating. Before rushing to remove the door panel, it’s likely just debris stuck in the tracks. I have a habit of snacking in the car, and candy wrappers and twigs ended up jammed in the gaps. I tried using long tweezers to fish them out, and sure enough, pulled out quite a bit of junk. If that doesn’t work, check if the weatherstripping is warped or worn—over time, it can bulge and block the path. If all else fails, take it to a repair shop to have them inspect the window regulator motor or cables, but avoid forcing the switch, as burning out the motor will make things worse. And when parking, try not to get too close to bushes—falling leaves can be a real nuisance.
