AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2021 Keystone Carbon
Overall rating NHTSA-grounded
Average
Estimated 5-year repair + maintenance cost: $6,300–$8,500
The 2021 Keystone Carbon has a single recall related to the fuel system and limited owner complaints, suggesting average reliability. The recall affects multiple models and years, indicating a possible systemic issue.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| fuel station controller | 10,000–30,000 miles | $150–$300 | common |
| suspension | 30,000–50,000 miles | $300–$500 | occasional |
Scheduled maintenance to budget
Routine items every owner should plan for.
- oil changes every 6 months
- annual brake inspections
- tire rotations every 10,000 miles
- battery health check annually
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- unusual fuel pump noise
- uneven tire wear
- suspension creaks
- fuel odors
- unexpected control panel alerts
Generated by gpt-4o on 8/24/2026. Cost ranges are conservative estimates that account for typical regional variation.