Where is the drain tube for sunroof on 2004 envoy?

The drain tubes for the sunroof on a 2004 GMC Envoy are typically located at each corner of the sunroof assembly. They run down the A-pillars and exit under the vehicle, directing water away from the interior. To access them, you may need to remove the sunroof's headliner or trim panels. It's essential to ensure these tubes are clear to prevent water leaks into the cabin.