1996 Volvo 850 reverse lights do not work what could be the problem?

If the reverse lights on a 1996 Volvo 850 are not working, there are several potential causes. First, check the reverse light bulbs to see if they are burned out. If the bulbs are fine, inspect the reverse light switch, which is usually located on the transmission; it may be faulty or misaligned. Additionally, check the wiring and fuses related to the reverse light circuit for any damage or loose connections.