2018 Cadillac CT6: common problems and reliability

The 2018 Cadillac CT6 has 18 owner-filed NHTSA complaints and 2 recalls on record. The most-reported areas are engine and steering. Owners most often flag unreliable electronics and poor build quality: electronics stop working randomly all over the car. frequency: very frequent.

Safety record for the 2018 model year

18
Owner complaints
2
Recalls
0
Crash reports
0
Fire reports

Source: NHTSA complaints and recalls filed for 2018 Cadillac CT6 vehicles (US, public record).

Is 2018 a good year for the CT6?

Across the 4 CT6 model years we track, complaint volume runs from 11 (2016) to 20 (2020). With 18 complaints, the 2018 CT6 sits about the same asthe model's median of 18.

These are raw NHTSA complaint totals, not adjusted for how many cars sold or how long each model year has been on the road. Older and higher-selling years accumulate more complaints.

Where owners report problems

engine
7
steering
6
power train
5
suspension
2
structure
2

Recalls affecting the 2018 CT6

seat belts:rear/other

Campaign 18V673000

General Motors LLC (GM) is recalling certain 2018-2019 Cadillac CT6, Escalade ESV, Chevrolet Suburban, Volt, and GMC Yukon XL vehicles. Certain second-row or third-row rear seatbelts retractor assemblies may not automati

seats:mid/rear assembly

Campaign 18V437000

General Motors LLC (GM) is recalling certain 2016-2018 Cadillac CT6 vehicles. The inboard child seat anchorage bars may have had excess structural adhesive applied during assembly, which can interfere with the installati

What owners say across generations

Mixed sentiment with a clear divide between appreciation for the vehicle's core attributes and significant concerns over reliability and long-term viability.

  • Unreliable electronics and poor build quality: electronics stop working randomly all over the car. Frequency: very frequent.
  • Problematic 8-speed automatic transmission (8L45 and 8L90): harsh shifting, jerkiness, especially in 2nd gear, laggy response, subject to class action lawsuits. Frequency: very frequent.

Owner insights cover all generations of the CT6. See the full CT6 owner picture and every model year.

Typical used price

Used CT6 listings typically run $20,774–$29,499 across 2016 to 2020 model years.

Other CT6 model years

Compare every CT6 year side by side to see how 2018 ranks against the rest.

Compare the CT6 against its rivals