Service & Repair

Keep your fleet running strong with certified service you can trust. As a factory-authorized maintenance and warranty center for hydrogen, electric, diesel, and trailer units, GTS Group delivers expert care backed by advanced diagnostics and manufacturer support.

Our certified technicians handle everything from routine maintenance to complex powertrain repairs, ensuring every truck meets OEM standards and stays road-ready. With mobile service available across Southern California, we bring the shop to you—minimizing downtime and keeping your operation moving.

Complete the form below to schedule service, or call +1 (888)-328-3898 to connect directly with our team.