Why can the Corolla window regulator lower but not raise the window?

[StJuliette]

The reasons why the Corolla window regulator can lower but not raise the window: 1. There are foreign objects in the window track; 2. If you can hear the sound of the regulator motor when pressing the switch, or if the window moves slowly, or sometimes works and sometimes doesn't, it indicates that the regulator motor is damaged. It is recommended to go to a 4S shop for inspection and repair. Not replacing it will affect driving experience and safety. The Corolla is a product of Toyota Motor Corporation, defined as a compact car. The dimensions of the Corolla are 4530mm in length, 1705mm in width, and 1490mm in height, with a wheelbase of 2600mm, front track of 1470mm, rear track of 1460mm, minimum ground clearance of 170mm, and a trunk capacity of 430L.

[DelLucille]

I encountered the same issue with my Corolla last time—the window would only go down but not up, which was really annoying. At first, I thought the switch was broken because there was no response when I pressed the up button, but the down button worked fine. Later, I realized it might be a wiring issue, like poor contact inside the door or a problem with the window motor. Parts inside the door often get jostled, and older cars are more prone to this kind of problem. I tried taking it apart myself, but without professional tools, I couldn’t fix it and almost damaged the wiring. My advice is to first check the door switch with a simple method: if you hear a faint sound from the motor when pressing the up button but the window doesn’t move, it’s likely stuck; if there’s no sound, it could be a switch or wiring short. Safety first—don’t force it. Get it checked at a repair shop soon, or you might risk not being able to close the window during rain or on the highway. Regular maintenance on these wear-prone parts can save you a lot of trouble.

[DelBradley]

Over the past few years, I've had my car repaired several times. One common issue with the Corolla's power window regulator is that it can only go down but not up. There are several main reasons for this: aging switches where the signal isn't transmitted when pressing the up button; short circuits or open circuits in the wiring, especially where wires are prone to wear at door bends; or motor failure, which might only work in one direction, requiring voltage testing to check if it's normal. I suggest you start by troubleshooting yourself: check the power window fuse in the fuse box—if it's not blown, test the switch buttons for stiffness, which indicates a problem. Then check if the wiring connectors are loose, but don't pull them randomly to avoid short circuits. If you can't fix it, don't delay—consult a professional mechanic. Delaying repairs can also drain the battery and increase future costs. Don't trust random online repair methods; the Corolla's compact structure requires careful handling.

[HarperDella]

When I found that the Corolla's window could only go down but not up, my first thought was about safety. An open window makes the car vulnerable to theft, rain, or cold drafts, especially when driving at night, which is even more dangerous. Common causes might be a stuck window switch or a motor malfunctioning in one direction. It's recommended to check immediately: try the button when opening the door and listen for any sound; if there's no sound, the switch might be broken. Don't ignore small issues, as delaying repairs could lead to burnt wiring or blown fuses. Make it a habit to ensure windows are closed before parking to prevent sudden problems. Simple fixes like replacing a fuse can be tried on your own, but for more complex issues, it's best to consult a technician. Safety is no small matter; don't risk driving to the repair shop—pushing the car is the safest approach.