Will the electric rearview mirror be damaged if forcibly folded by hand?

[EzraFitz]

Folding the electric rearview mirror by hand once or twice won't cause significant impact, but long-term manual folding may lead to irreversible damage or malfunctions. Consequences of long-term manual folding: Most electric rearview mirrors that have been manually folded will exhibit asynchronous folding speeds on both sides due to the displacement of internal racks. Working principle of electric rearview mirrors: They maintain stability through the resistance of racks inside the motor. Manual folding forcibly applies a reverse torque to the motor, which may affect signal input during the next startup. In mild cases, it causes rack misalignment and asynchronous folding speeds; in severe cases, malfunctions may occur. Prolonged manual folding will inevitably result in irreversible damage.

[VanIsabelle]

As an auto repair technician, I've seen too many cases where forcibly folding side mirrors leads to damage. The most fragile part of power mirrors is the internal plastic gear set - manual folding can directly cause gear teeth to strip or even break. Just two days ago I repaired a car where the owner said a car washer tried to 'help' by folding the mirrors, resulting in snapped motor gears. The repair required door panel removal and complete mirror assembly replacement, costing nearly 2000 RMB. Mirror housing clips can also crack from forced folding, leading to water leakage during rain. If you must fold them temporarily, wait for the power release moment and gently push with the mechanism's motion - treat it like handling precision instruments.

[CadenRose]

My neighbor's little sister just got her driver's license and already ran into this issue. She was afraid of scraping the mirrors in a narrow alley, so she forcefully folded them by hand. As a result, the motor got damaged, making a 'crunching' sound like chewing glass shards when folding. The mechanic said forcing it could snap the wiring harness—those connectors inside the base are fragile, and if torn, the entire wiring set needs replacement. The worst part is the deformed folding pivot: after unfolding, the mirror angles are misaligned, making her feel like her neck's crooked when checking them. Now, no matter how rushed she is, she only dares to use the car's folding button.

[VonEliana]

Once when picking up a friend, I was shocked to see him forcefully folding the side mirrors, sending chills down my spine. Nowadays, power side mirrors come with resistance protection—when abnormal resistance is detected, the motor stops. However, forcibly folding them manually can override this protection, potentially causing minor issues like gear misalignment or jamming, or worse, snapping the drive shaft. This is especially risky in winter when plastic parts become brittle, making them snap like biscuits. Last year during snowfall, I encountered this—the mirrors wouldn’t unfold at all, and the door panel had to be removed at the dealership for a fix. If you ever need to fold them temporarily, always wait for the motor's 'click' to unlock before touching them.

[DeIsaac]

There are two scenarios: forcing it when the vehicle is powered off isn't too serious, but doing so while powered on will definitely damage the car. When energized, the motor is in a locked state, and forcing a twist is like turning a rusted valve. The worst-case scenario is the torsion bar deforming—mechanics call this 'twisting into a pretzel'—which can cause abnormal noises after deployment or asymmetry between sides. It's recommended to first start the vehicle and press the folding button to unlock the base. If manual adjustment is absolutely necessary, only gently push in the opposite direction by 15 degrees, stopping immediately upon hearing a 'click'. The most severe case I've seen involved the base's plastic shell cracking open, exposing the copper coils inside.

[SanLeila]

Personal experience tells you: My new car's rearview mirror was once forcibly twisted and broken by a childhood friend. The electric rearview mirror internally consists of a micro motor + reduction gear, with mechanical strength far inferior to old-style manual mirrors. He used brute force to rotate the mirror housing by 45 degrees, directly causing three malfunctions: first, the gear teeth broke making it unable to reset; second, the position sensor malfunctioned causing the mirror heating to fail; third, the mirror adjustment could only move upwards but not downwards. It wasn't until a check at the repair shop that we found the aluminum base bracket was bent. The quote for replacing the entire assembly was over three thousand, which was absolutely heartbreaking.