OWNER ANSWER
Original SEAL one-touch window not working: safe checks
First compare holding the window switch with pressing or pulling it through its second position and releasing. The second position requests one-touch travel. If the window-control indicator flashes, the original SEAL handbook gives an end-position learning procedure for smooth-moving windows.
Original SEAL RHD EN-250305; not the 2026 facelift. Controls and equipment must match your car.
- Switch the ignition on and check the window path for visible obstructions. Safety note: Keep everyone clear of the glass and never test anti-pinch with a hand or other body part. Stop if the glass is skewed, grinding or resisting.
- Use the first switch position and hold to move the glass manually; release to stop. Compare that with the second position, which requests automatic travel after release.
- If the indicator flashes and manual travel is smooth, pull the switch to raise the glass fully, then keep it held for about two seconds.
- Next press the switch to lower the glass fully and hold for about two seconds at the bottom.
- Try one ordinary one-touch movement with the path clear. Do not introduce an obstruction to test the anti-pinch function.
What success looks like
The window completes one-touch travel after you release the second-position switch. Normal travel is the observable check; it does not justify testing anti-pinch with a person or object.
If that did not work
If manual movement fails, the glass reverses against resistance, or one-touch operation remains unreliable after the documented learning sequence, stop repeating it. Ask BYD to check the affected window’s guide, drive and position learning. Tell them which door is affected, whether the indicator flashes, and whether the driver’s and passenger’s switches behave differently. The sequence here follows the cited original-SEAL handbook; it is not an instruction for the facelift or SEAL U.
Useful next steps
BYD Original SEAL RHD EN-250305; not the 2026 facelift handbook, PDF pages 74, 75. Checked 13 November 2026.
Open source (BYD UK)