Do I need a relay or additional wiring harness to install these?

The switch is self-contained, but you'll want to verify your vehicle's wiring capacity before powering up. If your Escalade doesn't have pre-routed fog light wiring, run new positive and ground lines from the battery through a relay — refer to your service manual for exact gauge and routing.

Will these lights work with my factory front end, or do I need a custom bumper?

These mount at the factory fog light points on your bumper. If your Escalade came with fog lights from the factory, this is a direct bolt-in. If it didn't, you'll need to check whether your bumper has pre-cut openings; if not, you may need to source a fog-equipped bumper or have openings cut.

Can I return these if they don't fit, or if I change my mind after purchase?

Contact our support team with photos and your order number — we'll walk you through fitment and handle returns based on condition and timeline. Keep packaging in case a swap is needed.