Do I need to reprogram or code these after installation?

These bolt into factory locations without coding requirements. Install them, plug them in, and they work—no dealer visits needed.

Will these work with my truck's factory wiring harness?

Yes, they're engineered to connect directly to OEM electrical connectors. Consult your vehicle's service manual if you encounter any compatibility questions during install.

Do these come with bulbs installed?

The LED elements are integrated into the assembly—no separate bulbs to purchase or swap. The LEDs are factory-sealed as part of the optic unit.