2019 Buick LaCrosse Window Won't Go Up Or Down

Common Causes of Window Malfunctions in Your 2019 Buick LaCrosse and How to Fix Them

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Reviewed by
Andrew Hajjar
Written by RepairPal Car Genius
Updated January 14, 2025
0%
36% chance it's the
Fuse, Relay or Electrical System
0%
20% chance it's the
Window Motor
0%
24% chance it's the
Window Regulator
0%
20% chance it's
Something else
The most common reasons a 2019 Buick LaCrosse window won't go up or down are window's electrical system such as a fuse or relay, a broken window motor, or a broken window regulator.
  • Fuse, Relay or Electrical System: A blown fuse or a faulty relay can disrupt the electrical circuit, causing components to fail or operate intermittently.
  • Window Motor: A faulty window motor or a broken window regulator can prevent the window from moving up or down properly.
  • Window Regulator: A faulty window regulator can cause the window to become stuck or operate erratically due to worn gears or a broken cable.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2019 Buick LaCrosse window won't go up or down?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

If the door window motor fails, the window may not open or close, or it may operate intermittently. Traditionally, problems with power windows were caused by faulty switches or electrical wiring - especially the wires running between the door and the vehicle body that are subjected to repeated flexing. In these cases, the window might operate intermittently when the door is opened and closed. While this may still be the case on newer cars, it is increasingly common to find window motor problems that originate with a control module. Still, the switches and wiring should be checked thoroughly before replacing a window motor.

If one of the windows in a vehicle will not open or close properly, a failing door window regulator might be the cause. A window that is moving intermittently, or one that gets stuck on the way up or down, could also indicate a broken regulator. Other symptoms might include a clicking, chattering, or grinding noise when the window moves. In some cases a severely damaged window regulator could cause the window to drop inside the door.

When a switch can not make contact and close the circuit, the window cannot be raised and lowered. If the switch on the driver's door will not raise or lower the window in question, but the switch on the corresponding door works just fine, this is a good indication that there is a switch failure. This works the other way around, as well. If the switch on the door does not cause the window to function, but the driver's switch does, that is an indication of a passenger door window switch failure.

Due to the nature of electrical systems on modern vehicles, the range of problems these can cause are nearly limitless. However, there is a way to categorize them in two ways. Permanent and intermittent problems. Permanent problems appear and remain. This may be the vehicle will not start, the radio does not work, or the door chime will not turn off among many, many others. These problems are more straight-forward to diagnose since they present themselves at all time. This means there will always be a fault to find. Intermittent electrical problems, however, can be difficult or impossible to locate, since they appear then disappear without warning. The best case scenario for an intermittent issue is when replicating the problem is easily accomplished and understood. This allows a technician to make an issue semi-permanent, allowing them to find the fault. Other issues that come and go without warning and cannot be replicated on demand must occur when the technician is servicing the vehicle, otherwise there is no problem to correct. It is most important to understand that electrical system faults always require inspection, and can include the vehicle working in any manner, or not working at all.

Like we noted in the last section, general diagnosis symptoms are the most vague of the bunch. There are several diagnostic spectrums, electrical diagnosis, drivability diagnostics, engine diagnostics, transmission diagnostics, and the list could continue for about 5 or 10 more spectrums of diagnostics. The most important take-away here, is that general diagnostics are diagnostics that have no other spectrum in which they fit, or the problem is unknown. This means that any vehicle left outside of a repair facility with the keys and an authorization to perform diagnosis will be diagnosed under the general diagnosis spectrum.

What are the steps to diagnose a non-functioning window in a 2019 Buick LaCrosse?

To effectively diagnose a non-functioning window in your 2019 Buick LaCrosse, start with the simplest solutions before moving on to more intricate components. Begin by testing the window switch, as a faulty switch is often the easiest issue to resolve. If the switch appears to be working, proceed to inspect the fuse associated with the window system; a blown fuse can easily disrupt functionality. Next, examine the window motor to ensure it is operational, as a malfunctioning motor can prevent movement. If these components check out, turn your attention to the window regulator, which may be damaged or worn, impeding the window's movement. Finally, inspect the wiring for any loose connections or damage, as faulty wiring can interrupt the electrical flow necessary for the window to operate. By following this structured diagnostic approach, you can efficiently identify and address the issue with your window, saving time and potentially costly repairs.

What are the common problems that could cause the window in a 2019 Buick LaCrosse to stop working?

When faced with a non-working window in a 2019 Buick LaCrosse, it's essential to understand the common problems that could be at play. One of the primary culprits is a faulty window regulator, which is crucial for the window's movement; if it fails, the window may become completely immobile. Additionally, electrical issues such as a blown fuse or a malfunctioning switch can disrupt the power supply to the window motor, preventing it from operating. The window motor itself may also fail, rendering the entire system inoperative. Another possibility is that the window has come off its track, which can happen due to obstructions or damage, leading to erratic movement or complete failure. Furthermore, a malfunctioning window switch can hinder the communication between the switch and the motor, causing the window to remain stuck. Lastly, any mechanical damage to the window, such as broken glass or compromised seals, can also impede its functionality. By identifying these common issues, DIYers can effectively diagnose and address the problem, restoring the window's operation.

How urgent is it to address the malfunctioning window in my 2019 Buick LaCrosse?

Addressing a malfunctioning window in your 2019 Buick LaCrosse is crucial for several reasons. First and foremost, a window that cannot open or close properly can significantly impair your visibility and ventilation while driving, creating a safety hazard. Additionally, a malfunctioning window can leave your vehicle vulnerable to theft or unauthorized access, compromising your security. Ignoring these issues may lead to further damage to the window mechanism or surrounding components, resulting in more extensive and costly repairs. By prioritizing the repair of your window, you not only enhance your driving experience but also help maintain the overall functionality and value of your vehicle. Therefore, it is advisable to address any window malfunctions promptly to ensure your safety and the integrity of your Buick LaCrosse.

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2019 Buick LaCrosse Window Repair Guide | RepairPal