OnStar is available for the Chevy 3500 van.
The Chevrolet express 3500 passenger van is great. It has Dual air conditioners and comfortable seats. The van drives and maneuvers well. OnStar is a plus. I would like to see the van more soundproof. I would recommend a backup camera and step sides on both sides. The gas mileage is not bad a 14 to 16 miles per gal. Sound system is pretty nice. Would like to see more storage space and cup holders in the van. Brighter backup lights would be nice to have. My van came with a tow package but did not include the wiring. So I would check on that it you need to tow something. The van rides better with heavy duty tires.