2015 Silverado 2500HD Models & Specs

  • 1 2 If you subscribe after your trial period, subscriptions are continuous until you call SiriusXM to cancel. See SiriusXM Customer Agreement for complete terms at siriusxm.com. Other fees and taxes will apply. All fees and programming subject to change.
  • 2 1 Visit onstar.com for coverage map, details and system limitations. Services vary by model and conditions.