Is there a way to remove the yellowing of car light covers?

[LenaRose]

Regular waxing maintenance can delay oxidation. Apply an additional layer of wax on the exterior; when the wax oxidizes, simply wipe it off and reapply a new layer. Polishing involves a subtractive process, removing the oxidized layer to reveal the underlying white car paint that hasn't oxidized. However, this method reduces the material each time it's performed. The least favorable option is repainting, which is the worst method. Whether done at a repair shop or a 4S store, even with the best paint available, it will still be significantly inferior to the original factory paint.