Reliability & 5-year cost of ownership — 2018 Cadillac CT6
NHTSA data on file today
try.vin couldn't confirm NHTSA's recall list for the 2018 Cadillac CT6, so this page doesn't state a recall count — check the VIN at nhtsa.gov/recalls for current campaigns. 10 owner complaints are on file.
Most-cited components in owner complaints
- Engine 3 complaints
- Power Train 3 complaints
- Fuel/Propulsion System 2 complaints
- Steering 2 complaints
- Electrical System 1 complaint
- Exterior Lighting 1 complaint
Below average
Estimated 5-year repair + maintenance cost: $5,000–$12,000AI estimate — not from NHTSA data
The 2018 Cadillac CT6 has a limited amount of data due to its low complaint count. However, issues have been noted with the powertrain and engine systems, indicating potential reliability concerns.
Most-common failures
| Part | Typical mileage (AI estimate) | Cost range (AI estimate) | Frequency |
|---|---|---|---|
| powertrain | 40,000–70,000 miles | $1,200–$3,000 | occasional |
| engine | 50,000–80,000 miles | $1,500–$4,000 | occasional |
AI estimate — not from NHTSA data: the mileage bands and repair-cost ranges above. Get a written repair quote before you budget.
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil and filter change
- Brake inspection and service
- Tire rotation and alignment
- Transmission fluid change
- Coolant system service
- Battery test and replacement
- Cabin air filter replacement
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Unusual engine noises
- Transmission slipping
- Steering wheel vibrations
- Engine warning lights
- Poor fuel efficiency
Generated by gpt-4o on from the NHTSA recall campaigns and owner-complaint counts on file for the 2018 Cadillac CT6 at the time. The rating is an AI assessment; cost and mileage figures are AI estimates, not NHTSA data.