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 brakes | 50,000–80,000 miles | $400–$700 | very common |
| electrical system | 40,000–70,000 miles | $200–$500 | common |
| steering linkage | 60,000–90,000 miles | $300–$800 | common |
| transmission lock | 50,000–80,000 miles | $250–$600 | occasional |
| backup camera | 30,000–60,000 miles | $150–$300 | occasional |
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.