AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2018 Entegra Cornerstone
Overall rating NHTSA-grounded
Poor
Estimated 5-year repair + maintenance cost: $15,000–$20,000
The 2018 Entegra CORNERSTONE has significant reliability issues, with multiple recalls involving critical safety components such as suspension control arms and fuel systems. Frequent complaints emphasize engine and fuel system problems, suggesting a consistent pattern of mechanical failures.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| fuel system | 40,000–60,000 miles | $800–$1,500 | common |
| engine | 50,000–70,000 miles | $2,000–$4,000 | common |
| front suspension | 30,000–50,000 miles | $1,200–$2,500 | occasional |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil and filter change every 5,000 miles
- Replace air filter every 30,000 miles
- Inspect brakes annually
- Coolant replacement every 60,000 miles
- Transmission fluid change every 60,000 miles
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Steering looseness or pull
- Fuel pump noises
- Engine hesitation or stalling
Generated by gpt-4o on 8/24/2026. Cost ranges are conservative estimates that account for typical regional variation.