Automotive LED lights do not emit infrared (IR) and ultraviolet (UV) radiation. These lights do not contain any toxic or harmful elements. We can safely say that there is no actual evidence that they can cause cancer. This is unlike other types of lighting that contain elements that may cause cancer.
Is infrared radiation (IR) harmful to the body?
Over-exposure to certain types of electromagnetic radiation can be harmful. The higher the frequency of the radiation, the more damage it is likely to cause to the body: infrared radiation is felt as heat and causes skin burns. [source: BBC Bitesize]
What is ultraviolet radiation (UV)?
Ultraviolet (UV) is electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays. UV radiation is present in sunlight constituting about 10% of the total light output of the Sun. [source: Wikipedia]
Does ultraviolet radiation (UV) causes cancer?
Exposure to ultraviolet (UV) radiation is a major risk factor for most skin cancers. Sunlight is the main source of UV rays. Tanning lamps and beds are also sources of UV rays. People who get a lot of UV exposure from these sources are at greater risk for skin cancer. [source: American Cancer Society]