diagnostics, electrical, brake, transmission, tire, HVAC, hydraulic, suspension, and steering repairs performed on-site. United Fleet Maintenance also delivers customized preventative maintenance schedules, fluid checks, tire services, and battery and exhaust system inspections to support fleet uptime and regulatory compliance. In addition, it conducts pre-purchase inspections for trucks, trailers, and other commercial vehicles to assess mechanical condition, safety, and maintenance history for buyers.