Why don't the car mirrors automatically open after unlocking?

[DeDiana]

The main reasons why car mirrors fail to open are mechanical or electronic control issues, or possibly a disconnected or dead battery. Here is relevant information: 1. As the widest component installed on a vehicle, side mirrors are most susceptible to impact in the event of a collision. To minimize scratches, mirrors need a folding function. Foldable mirrors can retract when passing through narrow sections, improving the vehicle's passability. When the driver leaves the car, folding the mirrors not only protects the mirror surface. 2. Nowadays, mid-range and high-end vehicles mostly feature foldable mirrors. There are two types of folding functions: manual and electric. Manual folding requires the driver to reach out the window or exit the vehicle to fold the mirrors, which is inconvenient and unsafe—this type is now rare. The more common type is electric folding, which allows the driver to fold the mirrors from inside the car. When starting the vehicle, the mirrors automatically unfold.

[Theo]

I noticed that the power-folding mirrors aren't moving when unlocking the car, which is actually a pretty common issue across many vehicles. The most frequent causes are either a blown fuse or incorrect control settings. First, check your remote key to ensure the battery has power; then go to your vehicle's settings menu to see if the auto-folding feature is enabled – if it was accidentally turned off, you'll need to manually reactivate it. Additionally, poor electrical contact or motor aging could also be the culprit, especially in older vehicles where this problem occurs more often. I recall one winter with heavy rainfall causing connector corrosion that led to a short circuit. If you can't troubleshoot it yourself, don't force it – promptly visit a professional repair shop to inspect the circuit module. Never compromise driving safety, as automatic mirror deployment isn't just a daily convenience but also a critical warning feature. Damaged mirrors increase parking scratch risks.