How to Reinforce a Shaking Rearview Mirror?
3 Answers
Adjust the left and right positions to align the left edge of the mirror. For the upper and lower positions of the left rearview mirror, position the distant horizon in the center.
When I first drove this old car, the rearview mirror would shake violently over bumps, causing blurred vision and distraction while driving. Upon inspection, I found it was due to loose mounting screws. A simple method is to first pinch the mirror base with your hand to check for obvious wobbling; then use a wrench or screwdriver to tighten the screw located at the connection point between the mirror and windshield. If it still shakes after tightening, the internal spring washers might be worn out. You can add small washers or rubber rings for reinforcement—I once cut a piece from a bicycle inner tube and it worked perfectly. Remember to handle gently to avoid damaging the car. A shaky mirror isn’t just annoying but could also lead to accidents. I recommend checking these details every time you wash your car to ensure safe driving.
I've been repairing cars for over 20 years, and there are quite a few reasons for rearview mirror vibration. The most common ones are loose mounting screws or gaps. When reinforcing, first turn off the engine and park, then check the mirror base for looseness by hand. If it's a screw issue, just use the right wrench to tighten it; if the base is aging, you'll need to replace the part or use locking tape to secure it. Exterior mirrors usually have adjustment springs—check if they're stuck or deformed. You can also add cushioning pads to reduce vibration. Bumpy roads while driving often cause such problems. I recommend checking the mirror mounting points every 5,000 kilometers during regular maintenance—don't wait until it breaks. This saves money and hassle while extending your car's lifespan.
