Important Information Regarding Your GM W-Series Dealer Network
Effective November 1, 2010, all W-Series warranty or service needs will be 100% supported by the nationwide network of Isuzu commercial truck dealers. To insure proper service and parts support for your vehicle, there are over 285 locations throughout the U.S. We understand that this change may present challenges for some W-Series owners and that you may have questions.
Please contact Customer Relations at 1-866-441-9638 during normal business hours of 8:30AM Eastern to 5:00PM Pacific to get answers for any concerns or questions you may have.