AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2021 Cadillac Ct5
Overall rating NHTSA-grounded
Average
Estimated 5-year repair + maintenance cost: $5,000–$12,000
The 2021 Cadillac CT5 has average reliability, affected by recalls for transmission issues and airbag malfunctions. These concerns moderately impact ownership costs.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| automatic transmission | 30,000–50,000 miles | $1,500–$4,000 | common |
| lighting control module | 20,000–40,000 miles | $300–$600 | common |
| airbags system | 10,000–30,000 miles | $800–$1,500 | occasional |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil and filter changes
- Tire rotations
- Brake fluid replacement
- Transmission fluid check
- Coolant level checks
- Battery inspection
- Air filter replacement
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Gear slipping or hard shifts
- Dashboard error lights
- Unexpected engine noise
- Flickering or dim lights
Generated by gpt-4o on 8/23/2026. Cost ranges are conservative estimates that account for typical regional variation.