The right brake light is not working.
If your right side brake light is not working, it is possible that the bulb has simply burned out, or that there may perhaps be a problem with the vehicle's wiring. Usually replacing a bulb is a relatively simple procedure, however, checking wiring may sometimes be a bit more complicated. I would recommend having a professional technician, such as one from YourMechanic, diagnose your brake light and make necessary repairs.
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