How do you fix reverse lights on your 99 Chevrolet Blazer Manual Trans Its not the bulbs?

If the reverse lights on your 1999 Chevrolet Blazer are not working and the bulbs are fine, the issue may be with the reverse light switch, which is typically located on the transmission. First, check the switch for any loose connections or corrosion. If the switch appears faulty, it may need to be replaced. Additionally, inspect the wiring for any damage or shorts that could be affecting the circuit.