
Terra one-touch up/down window activation: First, locate the window control button (auto) on the left side of the driver's seat. Press and hold the button until the window is fully raised. After the window is completely closed, continue holding the button for approximately 2 to 5 seconds. When you hear a "click" sound, it indicates that the car's programming is complete. At this point, release the button to enable the one-touch up/down window function. Below is additional information about the one-touch up/down feature: 1. Cars equipped with the one-touch up/down window function typically have two positions on the window control button. The first position works like a regular power window, where the window's height is determined by how long the button is pressed. The second position allows the window to automatically fully close or open with a single press of the button. 2. Each power window has a control button. If the button is pressed for less than 0.55 seconds, the window will fully open or close. If the button is pressed for more than 0.55 seconds, the window will only stop moving when the button is released.

I encountered this issue last time when helping a friend with their Terra's window. First, sit in the car and close the door, then press and hold the window-up button on the driver's side without releasing it. Wait until the window is fully raised to the top and continue holding for about 5 seconds. Next, use the same method to press and hold the window-down button until the window is fully lowered and keep it pressed for 5 seconds. At this point, the system will memorize the positions. Test the window buttons again, and you'll find the one-touch function is restored. After a power loss or when the is low, this setting often needs to be recalibrated. The process is actually quite simple—it just requires a bit of patience. After completing the steps, make sure each window can be controlled individually to confirm success.

My car is the Terra Owner's Edition, and the method to activate the one-touch up/down feature involves a step-by-step operation for all four windows. Specifically, start the vehicle but do not drive off, select the driver's side window switch, raise it to the highest point, and hold the switch for about 6 seconds. Then lower it completely and hold for another 6 seconds. Repeat this process individually for the other three windows. Once completed, testing will show that a single press can automatically raise or lower the windows. Note that dirty window tracks may affect the memory function, so it's recommended to clean dust and sand particles from the tracks once a year.

The Terra's function will be deactivated after a power outage and requires resetting. You only need to operate the master control switch on the driver's door: lower the window completely, then hold the down button for 15 seconds, and then raise it to the top while holding the up button for 15 seconds. A clicking sound indicates the system reset is complete. This design is because the anti-pinch function needs to memorize the travel position. Normally, high-pressure water jets washing the door gaps during car washing may cause initialization failure, so special attention should be paid to waterproofing.

Activating the one-touch up/down feature for the Terra doesn't require a visit to the 4S shop. Here's how I did it: After starting the engine, locate the window control button on the driver's side. First, completely lower the driver's window, then immediately raise it fully. Repeat this action twice. On the third time, lower the window halfway, hold the down button for 3 seconds, then raise it to the top and hold for another 3 seconds. Performing this sequence three times in a row will activate the feature. If power is interrupted during the process, you'll need to start over. Note that initialization may be inaccurate when there's heavy cargo in the trunk.

Here's how I performed the Terrano window initialization: Ensure all doors are closed and start the ignition. Press and hold the driver's side window lift button until the window is fully closed, then continue holding for 10 seconds. Next, press and hold the window down button all the way and maintain for 10 seconds. You should hear a slight relay click sound during this process to confirm success. Operate other windows using the same method. Note that having the sunroof open may affect the system current and cause initialization failure. It's best to check this function before the rainy season to avoid delayed window closing during rain.


