Why did the car's rearview mirror suddenly stop retracting automatically?

[LeNolan]

The car's rearview mirror suddenly stops retracting automatically because the battery is disconnected or out of power. When the car is almost out of power, it does not display many question marks, but many warning lights will illuminate. Below is an introduction to battery-related content: Charging method: Use constant voltage and current limiting for charging. Duration: Charge for 16 hours at a constant voltage of 14.8V and a current limit of 15A, then charge for 4 hours at a constant current of 3A, totaling 20 hours. Below is extended information on battery charging voltage and current: Voltage: The charging voltage for motorcycles is 12V. During the charging process, the charging voltage is mostly between 13.5-14.5V. When charged in the vehicle by the rectifier, it does not exceed 15V. If using a charger, the charging voltage is generally 14V. Current: During the charging process, the charging current should not be too large. Car owners are advised not to use fast charging. When charging, use half of the rated charging current and extend the rated charging time by double.

[SanLeila]

My car had the same issue before. After playing with cars for ten years, I've found there are usually several reasons why side mirrors don't retract. The power wires might be loose or corroded, and an aging battery could also cause voltage instability, preventing the motor from functioning. Poor contact in the switch button is a common factor—over time, the button wears out and stops responding when pressed. Dust or sand stuck in the mirror joint can hinder rotation; during inspection, gently push it manually to check for smooth movement. A blown fuse is the most easily overlooked cause—go to the engine bay fuse box, locate the corresponding fuse (usually 10A), and pull it out to see if it's blackened. Sensor failures are rarer but could be related to the vehicle's computer. Start by testing the voltage with a multimeter yourself; if that doesn’t work, take it to a repair shop. To prevent this, avoid spraying too much water around the mirror edges when washing the car.

[IsabellaAnn]

Driving the kids to and from school every day can be a headache when the rearview mirrors don't retract. It might be due to a weak remote key signal or a malfunctioning door lock linkage—try locking the car again after parking. A weak battery can also affect automatic functions, especially after a cold start in winter. A simple fix is to turn off the engine, wait a few minutes, and restart to see if the mirrors reset. If that doesn’t work, try manually pressing the switch or gently pushing the mirror to see if it retracts. Remember not to force it, as that could cause further damage. Make it a habit to regularly clean the edges of the mirrors to prevent dust buildup. If the issue persists, visit a dealership promptly to avoid compromising driving safety. After all, small problems can escalate if ignored.

[MiguelLee]

Road safety is paramount, and not retracting the rearview mirror is very dangerous. It may be caused by a short circuit in the wiring or a malfunction in the control module leading to functional failure. Once discovered, immediately pull over and attempt to manually adjust the mirror. Avoid continuing to drive to prevent obstructed vision or accidents. The core reasons are unstable power supply or mechanical jamming. During repairs, focus on checking fuses and wiring connections. Do not delay; seek professional repair as soon as possible.

[LaNova]

I'm a car repair enthusiast and have fixed this issue myself. First, check the fuse located in the fuse box under the dashboard, usually numbered 10-15, to see if it's blown. Test the switch button for any response; if there's none, it might be a damaged button or a broken wire. Gently push the mirror manually to check if it's stuck, and clean dust with a soft brush. Sometimes simply disconnecting the positive battery terminal for 30 seconds and reconnecting it can reset the system. Most cases are minor faults with low repair costs.

[SanDaniela]

To keep the car reliable, I check the automatic function of the rearview mirror every month. Ensure the battery is in good condition with stable voltage, and use specialized lubricant on the mirror's rotating joints to prevent rust and sticking. Avoid electrical components when washing the car to reduce the risk of water damage. Regularly visit a maintenance shop for a comprehensive inspection, where technicians will clean sensors or tighten connections. Develop the habit of manually folding and unfolding the mirrors to detect issues early. Small maintenance extends the overall lifespan, saving both worry and money.