I've noticed recently that my passenger seat is quite noisy. The highways I drive on for work are bumpy and uneven, and the passenger seat seems to shake a lot. It makes a constant rattling or tapping sound, and it does so at a fast pace. I can confirm that it's the seat, as when I reach over to hold it down with my arm, the noise stops. It only seems to be the backrest of the seat, not the part where you sit on it.
My car is a 2006 Toyota Corolla. Are there any tips for quieting a noisy seat?
It's almost impossible to say without knowing what is rattling, so you have to find out first.
You could give it a few good shakes by hand when the car is stopped, if you can make the noise happen you should be able to narrow it down.
Then at that point it just becomes a matter of either a proper fix (tightening bolts, resetting springs, replacing worn parts) or creative problem solving (shove a rag in a gap, put some weight in the chair, change the seat position, duct tape, bungee cords, zip ties -- for example, you say it stops when you hold it down with your arm, so as a quick fix rig something up to always apply that pressure).
