What to Do When the Rearview Mirror's Vertical Adjustment Fails?

[Everdeen]

When the rearview mirror's vertical adjustment fails, there are several possible scenarios: Button contact failure. The adjustment buttons for up-down and left-right directions malfunction. In this case, first check the switch—it's highly likely that the switch is dirty. Usually, cleaning it will restore normal function. Since dismantling the entire control panel is difficult, it's recommended to go directly to an auto repair shop or a 4S shop and have professionals clean it. Misalignment of the white screw inside the mirror. During adjustment, the motor makes a working sound and shows signs of operation, but the adjustment fails. Solution: Insert the white screw back into the rubber sleeve. The mirror lens can be pried off directly—apply force from the bottom of the lens, pushing upward and outward. The center of the lens has a large spherical slot; once opened, you can see the white screw. Motor gear damage or wiring harness issues. In this situation, you can only go to a 4S shop or an auto repair shop, have professionals inspect it first to identify the problem, and then proceed with targeted repairs.

[Alice]

That day when I was driving home from work, I noticed the rearview mirror wouldn't adjust up or down - the button wasn't responding. I suspected something was stuck or broken inside, possibly due to water short-circuiting since I'd just washed the car the previous week. First, I safely pulled over to check the mirror fuse in the fuse box - it looked intact. Then I tried restarting the car to reset the system, but that didn't fix it. Later at the repair shop, the mechanic removed the door panel and found oxidized button contacts. A quick spray of cleaner solved the problem for just a few dozen yuan.

Mirror malfunctions can be really annoying - I had to rely solely on the side mirrors temporarily, requiring extra caution when changing lanes. As drivers, we shouldn't ignore minor issues. Developing good habits like checking all buttons and mirror positions after each car wash can prevent problems. When facing such situations, stay calm - if you can't figure it out yourself, seek professional help for quick repairs.

[OPenelope]

I've encountered the issue of malfunctioning rearview mirror adjustments before while tinkering with my car. Possible causes include button wear, loose wiring, or motor jamming. My preferred troubleshooting approach is: First, open the door-side fuse box and inspect the rearview mirror fuse for signs of burning; if intact, try pressing the adjustment button firmly several times to listen for motor sounds - audible but no movement suggests mechanical obstruction. If you have a multimeter, test circuit continuity yourself, but avoid touching high-voltage wires without proper tools. If problems persist, don't force repairs - drive to a professional shop for quick component replacement. Should failure occur while driving, use side mirrors to compensate visibility and avoid sudden maneuvers. Regular button cleaning prevents dust buildup and saves maintenance costs.

[Joanna]

When the rearview mirror's vertical adjustment fails, prioritize handling safety risks. If this happens on the highway, immediately turn on hazard lights, slow down, and pull over to the side. Adjust the temporary mirror angle before starting again, reduce speed when changing lanes, and go directly to a repair shop without delay. A malfunctioning mirror affects blind spot judgment and can easily lead to accidents. Do not attempt to forcibly dismantle parts yourself to avoid worsening the situation. Early repair ensures safety.