Tacoma plastic headlight covers

If by "weathering", you mean badly fogged looking, then you may be able to restore it to clear again with this product (or similar):

dan

Good idea, it had some positive reviews. Didn't occur to me to polish the headlight covers. I have some old carnauba wax in the garage. Wonder if it can take the high beams. I'll do a test.

You need to POLISH it first BEFORE waxing. The "polishing" may involve staring with 600 grit wet sandpaper, going down ro 1500, then 2000 - then polishing with a "rouge" type polisg, before "sealing" or protecting with wax, or better yet, a sealer DESIGNED for the purpose - like Plastex, etc.

Had the same problem on my PT Cruiser and Mystique

The wax was all dried up - must have been 20 years old. Found some Meguilar's Mirror Glaze 17 which says that it will remove fine scratches from clear plastics. Tried polishing 3 times. It looks better, but the crazing seems to be mostly on the inside. Didn't really work.

If I'm going to the trouble of removing the cover to polish the inside, I might as well buy a replacement. Might save the old one and have it ready for 2016.

TRY the sandpaper first - if it works - good. If not you haven't lost anything. I started with 600 and soapy water, went to 1000 with WSW fluid, the 2000 with WSW fluid, then plastex and a sponge.

Found out that the cover is part of headlight assembly. $65 @ JCWitney.

There is a big difference in how far the headlights project the beam after polishing.

So does Chrysler, GM, Ford and a host of other manufacturers who are having EXACTLY the SAME problem.

i've found brasso best for clearing plastic. model builders have used it for years to make canopys look like glass. it works on headlight stuff, too. use a buffer pad on a wheel. costs about $6

Look into some stuff called jeweler's rouge. Comes in a stick and applied directly to a buffer wheel. Best wear eye protection as it can cause eye damage.