Evan, the fog light lamp in the left tail light assembly is the lamp closest to the trunk lid. It is significantly brighter than the brake lamps and lights the red trapezoid-shaped section of the tail light assembly to the right of the brake light. As placo1 mentioned the right tail light assembly lacks the fog light lamp by design. Check that a lamp is installed in the left tail light assembly. Your Owner's Manual should specify the correct lamp for the fog light. The fact that the headlight switch glows orange indicates that your car is wired for the left rear fog light.

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Fred Hoelzle