- Faulty tail light bulbs: Firstly, check the tail light bulbs to make sure that they are not burned out. If any of them are, replace them with new bulbs.
- Blown fuse: Another possible cause is a blown fuse. Check the fuse box in your Tahoe and identify the fuse for the tail lights. If it is blown, replace it with a new fuse of the same amperage.
- Loose or corroded wiring: Examine the wiring harness for the tail lights to ensure that it is connected securely and there is no corrosion. Clean any corrosion and reconnect any loose wires.
- Faulty tail light switch: The tail light switch, which is located on the brake pedal, could also be the source of the problem. Inspect the switch for damage and replace it if necessary.
- Malfunctioning relay: The tail light relay, which is responsible for turning on the tail lights, could be malfunctioning. Try swapping the tail light relay with another relay to see if the tail lights start working.
- Electrical system issues: If none of the above solutions resolve the problem, there could be an underlying issue with the electrical system of your Tahoe. It is recommended to have your vehicle inspected by a qualified mechanic to diagnose and fix the problem accurately.
