2018 Cadillac CT6 problems and recalls

Owners have filed 12 complaints on the 2018 Cadillac CT6, and NHTSA has issued 2 recalls. The most cited component is the Power Train (4 complaints).

12
Complaints
2
Recalls
0
Crash reports
0
Fire reports
0
Injuries
54.4
Severity index

Severity index 54.4 Medium. The index weights crashes, fires, injuries and fatalities per 100 complaints. How it is calculated.

Middle half of all tracked vehiclesThis vehicle: 54.4p25 46p75 80cleanestworst
Severity index against the quartile range for all tracked vehicles.

Components cited in complaints

Power TrainPower Train: 4 complaints (33.3%)4 33%EngineEngine: 4 complaints (33.3%)4 33%SteeringSteering: 3 complaints (25.0%)3 25%Fuel/Propulsion SystemFuel/Propulsion System: 2 complaints (16.7%)2 17%SuspensionSuspension: 1 complaints (8.3%)1 8%StructureStructure: 1 complaints (8.3%)1 8%Service BrakesService Brakes: 1 complaints (8.3%)1 8%Exterior LightingExterior Lighting: 1 complaints (8.3%)1 8%
A single complaint can cite more than one component, so shares total over 100%.
ComponentComplaintsShare of complaints citing it
POWER TRAIN433.3%
ENGINE433.3%
STEERING325.0%
FUEL/PROPULSION SYSTEM216.7%
SUSPENSION18.3%
STRUCTURE18.3%
SERVICE BRAKES18.3%
EXTERIOR LIGHTING18.3%

Complaints filed per year

0232018: 12020: 22021: 22023: 22024: 12025: 12026: 3 (partial year)182021232425263
Complaints by the calendar year they were filed. The hatched bar is the current year to date.
YearComplaints
20181
20202
20212
20232
20241
20251
2026 (year to date)3
Filings in 2023 to 2025 were close to 2018 to 2021 (4 against 5).

Recall campaigns

CampaignReportedComponentSummary
18V67300026/09/2018SEAT BELTS:REAR/OTHERGeneral 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 automatically lock when the seatbelt is fully pulled out of the ret
18V43700028/06/2018SEATS:MID/REAR ASSEMBLYGeneral 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 installation of a child seat. As such, these vehicles fail to comply

Other Cadillac CT6 model years

Severity index for every other model year on file. Compare all 3 years side by side.

Source. NHTSA public complaint and recall APIs (api.nhtsa.gov), retrieved 2026-08-16. Complaints are unverified consumer reports. Totals vary with units sold and years on the road. Not affiliated with NHTSA or any manufacturer.