Warped plastic dash bezels

[charliec]

These bezels are visibly warped; maybe UV exposure??? Anyway, I'd like to have them straight as possible. Does anyone have any ideas as to how to flatten them so they'll lay flat against the dash?

 

[69FBCuda]

Get a 1500 watt adjustable heat gun snd start low temp and slow on a nice heat proof flat surface. Its a mans version of a hair dryer

PORTER-CABLE Heat Gun, 1500 Watt, Dual Temperature Settings, Corded (PC1500HG) Black https://www.amazon.com/dp/B004Q04X44?tag=fabo03-20