Why can the one-touch window lift of the new Sylphy only lower but not raise?
2 Answers
If the one-touch window lift of the new Sylphy can only lower but not raise, it may be due to a damaged window lift motor, poor contact in the electrical control wiring harness, motor overheating, or excessive resistance in the glass guide channel. Damaged window lift motor or poor contact in the electrical control wiring harness: If there is a burnt smell or unusual noise inside the door panel when holding down the window button for a long time, it is highly likely that the window lift motor components are damaged. In this case, it is recommended to directly visit a 4S shop or auto repair shop to replace the window lift motor. Motor overheating protection: To protect the power supply circuit, most window lift motors are equipped with an overheating protection mechanism. If the components overheat for some reason, the motor will enter an overheating protection state, causing the window lift to malfunction. Excessive resistance in the glass guide channel: The door glass guide channel is a detail that is often overlooked. During use, dust can accumulate in the glass guide channel, increasing resistance. Over time, this may make it difficult for the glass to rise.
The one-touch up function of the new Sylphy's power window only works for lowering but not raising, which is likely due to a malfunction in the one-touch switch causing the upward signal transmission to fail. I've repaired many such cases myself, and common causes include oxidation or wear of the internal switch contacts, especially with frequent use. Additionally, the window motor might be stuck in one direction or the drive circuit might be disconnected. If the vehicle has experienced a power loss before, such as after replacing the battery, the initialization settings might be lost, leading to this issue. I recommend trying to reinitialize first: hold the window up button for more than ten seconds to see if the memory function can be restored. If that doesn't work, check if the corresponding window fuse in the fuse box is blown or if the wiring connections are loose. In severe cases, it's best to have the body control module checked at a professional shop to avoid making things worse by attempting DIY repairs. Window issues can be quite annoying during daily driving, so it's best to address them early to avoid safety risks.
