Paint yellowing

[hrchdog]

The body side moldings on my sons white truck have turned yellowish, is there any thing that will bring them back white?

 

[Beemerboy]

The body side moldings on my sons white truck have turned yellowish, is there any thing that will bring them back white?

Some pics of this would be helpful. Is it just a spot or two, or the whole trim piece?

I've done a few Chevy trucks where the wheel well trim pieces have started turning yellow...I polished them by hand using a chemical based polish that worked of but didn't take them out completely.

This was a white Chevy that I was working on.

The polish I used was Poorboys Pro-Polish

 

[hrchdog]

The whole trim piece.

 

[Ronkh]

probably need new trim. sounds like vinyl after markets