2015 Silverado 3500HD Models & Specs

  • 1 5 Full functionality requires compatible Bluetooth and smartphone. Some devices require USB connectivity. Map coverage available in the United States, U.S. Virgin Islands, Puerto Rico, and Canada.
  • 2 4 Full functionality requires compatible Bluetooth® and smartphone. Some devices require USB connectivity.
  • 3 2 Devices must be WPA2 compliant with active OnStar service and data plan. Wi-Fi devices manufactured prior to 2006 may not be compatible. Please consult your device manufacturer for information regarding the WPA2 security protocol and Wi-Fi device compatibility. Vehicle must be started or in accessory mode to access Wi-Fi. Visit onstar.com for details and system limitations. Available on models built after August 2014. See dealer for availability.
  • 4 3 Visit onstar.com for coverage map, details and system limitations. Services very by model and conditions. 4G LTE service available in select markets.

Destination Freight Charges

To allow you to do an accurate price comparison with prices featured on other Internet sites, GM provides Internet pricing both with and without the Destination Freight Charge (see prices including Destination Freight Charge below). To get full pricing details, go to our Build Your Own section.