How do you turn back on your daytime running lights a 2000 Chevy Impala?

The 2000 Chevy Impala doesn't have a daytime running light (DRL) switch in the traditional sense. The DRLs are controlled by the body control module (BCM) and are typically automatically activated when the ignition is turned on. If your DRLs aren't working, the problem is likely one of the following:

* Burnt-out bulbs: Check your headlights and/or parking lights (depending on your Impala's DRL configuration – some use headlights, some use parking lights, and some use both). If one is burned out, it will likely disable the DRL function.

* Faulty BCM: The Body Control Module is the brains of the electrical system. A malfunctioning BCM can prevent the DRLs from activating. This is a more serious issue and requires professional diagnosis and repair.

* Fuse: Check the fuse box (both under the hood and inside the cabin) for a blown fuse related to the headlights or parking lights. Consult your owner's manual for the correct fuse designations.

* Wiring issue: A short circuit or damaged wiring in the headlight or parking light circuits could interrupt the DRL function. This requires a more in-depth inspection.

In short, you don't "turn them back on" with a switch. You need to troubleshoot the electrical system to find why they're not working. If you're not comfortable working with car electrical systems, it's best to take your Impala to a qualified mechanic for diagnosis and repair.