We have a 2017 CC Champagne. Found out that the incandescent bulbs were too hot for the lenses - 4 yellow and 2 red lenses cracked over 2 years time. Since then bought LED bulbs from Walmart to go with the new marker lenses.
Ordered the following from etrailer:
Replacement Red Lens for Optronics MC32RB and MCL32RB Trailer Lights - A32RB
Replacement Amber Lens for MC32AB Trailer Lights - A32AB
Shipping - $2.99
Tax - $0.93