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Kalispel · 10-05-2015, 03:05 PM

Wow, and I thought Phoenix, AZ was bad with regular summertime temperatures in the 45-48 degrees Celcius (113-118F) range.

The polycarbonate plastic housings of auto lights oxidize/haze under extreme UV conditions, where the UV intensity eventually destroys the OEM UV coating on them. After you get your lights re-sanded/polished or replaced, I would recommend that you get some sort of quality aftermarket UV film (such as 3M) applied to them as an extra layer of defense. That is what I plan to do with my 2015 Yaris SE before next spring rolls around here in Phoenix, AZ.

10-05-2015, 03:05 PM	#2
Kalispel View User's Garage Drives: '15 Yaris SE 5MT Join Date: Jun 2014 Location: Arizona (USA) Posts: 1,058	Wow, and I thought Phoenix, AZ was bad with regular summertime temperatures in the 45-48 degrees Celcius (113-118F) range. The polycarbonate plastic housings of auto lights oxidize/haze under extreme UV conditions, where the UV intensity eventually destroys the OEM UV coating on them. After you get your lights re-sanded/polished or replaced, I would recommend that you get some sort of quality aftermarket UV film (such as 3M) applied to them as an extra layer of defense. That is what I plan to do with my 2015 Yaris SE before next spring rolls around here in Phoenix, AZ. Last edited by Kalispel; 10-05-2015 at 04:31 PM.