Please select from one of the support areas below. You may submit your inquiry online or by calling one of the designated numbers.

DTNAConnect Technical Support
Contact DTNAConnect Technical Support if an application or other resource is not performing as expected.

Phone: 855-639-8680
Email: softwaresupport@daimler.com

Note: If you have questions on changing your level of access, most DTNA customers will need to work directly with their organization’s Security Administrators.

Product Concerns

These online forms are for customer only.  If dealer or distributor, please submit a web ticket via Daimler Trucks Technical Support (DTTS) on DTNAConnect.

Submit your chassis related product concern here

Submit your Detroit power train product concern here

Freightliner/WesternStar/Freightliner Custom Chassis: 800-385-4357

Thomas Built Buses: 855-253-0419 (Customer) 855-639-8686 (Dealers)