2025 Ram ProMaster 3500 Service and Repair Manual

Built for the heaviest loads in the lineup, the 2025 Ram ProMaster 3500 is offered as a standard or extended cargo van as well as a cutaway and a cab and chassis for box, ambulance and RV builds. Tradesman, SLT and SLT+ trims all use the 3.6L DOHC Pentastar V6, flex-fuel capable, with a nine-speed automatic and front-wheel drive. With so many body configurations and upfitter connections, year-exact data matters, and this factory service and repair manual gives the 2025 procedures, specifications, torque values, wiring diagrams and diagnostics for the powertrain, suspension, brakes, steering and electrical system.

Engines covered

• 3.6L V6 — DOHC, naturally aspirated, flex-fuel

Body styles covered

• 3-door cargo van
• 4-door cargo van
• extended cargo van
• cutaway van
• cab and chassis

Trims covered

• SLT
• SLT+
• Tradesman

Known issues on the 2025 ProMaster 3500. Four recalls are on federal record under the 2025 ProMaster name: security gateway module software that may stop the rearview camera image displaying, electric drive module software on battery-electric versions that may cause a loss of drive power, a radiator fan electrical circuit that may overheat and risk a fire, and wheelchair restraint retractors on converted mobility vans that may not lock. Owners have filed 6 complaints, involving the engine, steering, electrical system and service brakes. The camera, cooling-fan circuit and electrical diagnostics and wiring diagrams in this manual cover these systems.