AI-generated · grounded in NHTSA data

Reliability & 5-year cost of ownership — 2018 Ram 3500

Overall rating NHTSA-grounded

Average

Estimated 5-year repair + maintenance cost: $8,500–$15,000

The 2018 Ram 3500 receives an average reliability rating. While there are notable issues with the service brakes, electrical system, and steering, these are not uncommon among heavy-duty trucks. The recalls largely address safety-related components such as airbags, brakes, and powertrain shifting mechanisms, which though significant, are manageable when proactively addressed.

Most-common failures

Part Typical mileage Cost range Frequency
service brakes50,000–80,000 miles$400–$700very common
electrical system40,000–70,000 miles$200–$500common
steering linkage60,000–90,000 miles$300–$800common
transmission lock50,000–80,000 miles$250–$600occasional
backup camera30,000–60,000 miles$150–$300occasional

Scheduled maintenance to budget

Routine items every owner should plan for.

  • Oil and filter change every 7,500 miles
  • Brake fluid replacement every 20,000 miles
  • Transmission fluid change every 60,000 miles
  • Coolant flush every 50,000 miles
  • Differential service every 30,000 miles
  • Air filter replacement annually
  • Tire rotation every 10,000 miles

Warning signs to watch for

Symptoms that signal a major upcoming repair.

  • Brake pedal feels soft
  • Unusual electric flickering
  • Steering wheel play or noise
  • Transmission not holding in park
  • Backup camera outages

Generated by gpt-4o on 8/18/2026. Cost ranges are conservative estimates that account for typical regional variation.