2018 Toyota Corolla Window Won't Go Up Or Down

Common Causes of Window Malfunctions in Your 2018 Toyota Corolla 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 2018 Toyota Corolla 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 2018 Toyota Corolla 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 window that won't operate in a 2018 Toyota Corolla?

When diagnosing a window that won't operate in a 2018 Toyota Corolla, it's crucial to follow a methodical diagnostic approach that prioritizes simpler solutions before tackling more complex issues. Begin by checking the window switch, as this is often the easiest fix; test it on other windows to ensure it is functioning correctly. If the switch is operational, the next step is to inspect the fuse box for any blown fuses related to the window system, as replacing a blown fuse can often resolve the issue quickly. After confirming the switch and fuses are in good condition, examine the window motor to verify it is receiving power when the switch is activated; if it is powered but not functioning, the motor may need to be replaced. Additionally, inspect the window regulator for any damage or obstructions that could prevent the window from moving. It's also important to check the wiring connections for any loose or damaged wires, as these can lead to operational failures. If these steps do not resolve the issue, seeking the assistance of a professional mechanic may be necessary for further diagnosis and repair. By adhering to this structured approach, you can effectively identify and address the problem with your window, ensuring a smoother DIY repair process.

What are the common problems that could cause the window in a 2018 Toyota Corolla to stop working?

When troubleshooting a non-functioning window in a 2018 Toyota Corolla, it's essential to consider several common issues that could be at play. One of the primary culprits is a faulty window regulator, which is responsible for the movement of the window; if it malfunctions, the window may not operate correctly. Additionally, a defective window switch can prevent the window from responding to your commands, making it seem as though the window is stuck. Another potential issue is a blown fuse, which can disrupt the electrical flow necessary for the window to function. If the window motor itself is failing, you may find that the window does not move at all when you attempt to operate it. Lastly, it's worth checking if the window has come off its track, as this can cause it to get stuck or move unevenly. By systematically examining these areas, you can effectively diagnose and address the problem, ensuring your window operates smoothly once again.

How urgent is it to fix the malfunctioning window in my 2018 Toyota Corolla?

When considering the urgency of fixing a malfunctioning window in your 2018 Toyota Corolla, it is essential to recognize the potential consequences of delaying repairs. A window that cannot close fully or is stuck in an open position can create significant safety concerns, exposing you and your passengers to the elements and increasing the risk of accidents. Additionally, adverse weather conditions can lead to water damage or extreme temperature discomfort inside the vehicle, making it imperative to act quickly. Security is another critical factor; a window that fails to close properly can leave your car vulnerable to theft, putting your belongings at risk. Furthermore, neglecting the issue may result in more extensive damage to the window mechanism or other components, leading to costly repairs down the line. Therefore, addressing a malfunctioning window promptly is crucial to ensure the safety, security, and overall integrity of your vehicle.

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