2018 Cadillac CT6

2018 Cadillac CT6

The Cadillac CT6 is a full-size luxury sedan available with various engine and transmission options. The standard engine is a 3.6L V6 producing 335 horsepower and 284 pound-feet of torque. Optional powertrains include a 2.0L turbocharged 4-cylinder, a 3.0L twin-turbocharged V6, and a high-performance 4.2L twin-turbocharged V8. Transmission options include an 8-speed automatic transmission and a 10-speed automatic transmission.

The CT6 is praised for its spacious interior, comfortable ride, and advanced technology. However, some owners have reported various issues with the vehicle.

Engine

3.6L V6

• Oil Leak from Valve Cover: Leaking oil can contaminate spark plugs and cause misfires. Solution includes replacing the valve cover gasket. Estimated Cost to Fix: $500 - $1,000
• Intake Manifold Runner Control Failure: Failure of the intake manifold runner control can cause a loss of power and engine stalling. Solution involves replacing the intake manifold runner control. Estimated Cost to Fix: $800 - $1,200

2.0L Turbocharged 4-Cylinder

• Cooling System Failure: Failure of the cooling system can lead to engine overheating and costly repairs. Solution involves replacing the radiator, water pump, or thermostat. Estimated Cost to Fix: $1,000 - $3,000

3.0L Twin-Turbocharged V6

• Turbocharger Failure: Turbocharger failure can result in loss of power, increased emissions, and engine damage. Solution involves replacing the turbocharger assembly. Estimated Cost to Fix: $2,500 - $5,000

4.2L Twin-Turbocharged V8

• No Issues Found

Transmission

8-Speed Automatic Transmission

• Shifting Problems: Hard or delayed shifting can be caused by faulty solenoids or a worn transmission filter. Solution involves servicing or replacing the transmission. Estimated Cost to Fix: $500 - $2,000

10-Speed Automatic Transmission

• No Issues Found

Suspension

• Front Strut Failure: Failure of the front struts can lead to a rough ride and reduced handling. Solution involves replacing the struts. Estimated Cost to Fix: $1,000 - $2,000

Electrical

• Battery Discharge: Battery discharge can occur due to parasitic drainage from the electrical system. Solution involves identifying and isolating the source of the drain. Estimated Cost to Fix: $100 - $300
• Headlight Failure: Failure of the headlights can impair visibility at night. Solution involves replacing the headlight assembly. Estimated Cost to Fix: $500 - $1,500

Exterior

• Sunroof Malfunction: Failure of the sunroof can result in leaks, wind noise, or other issues. Solution involves repairing or replacing the sunroof mechanism. Estimated Cost to Fix: $500 - $2,000

Interior

• Center Console Noise: Rattle or buzzing noises from the center console can be caused by loose components or misaligned trim pieces. Solution involves tightening or replacing the affected components. Estimated Cost to Fix: $100 - $500

Summary

The 2018 Cadillac CT6 is a luxurious sedan with a comfortable interior and advanced technology. However, it has been reported to have some issues, with the most common being engine oil leaks, intake manifold runner control failure, and suspension failure. The severity and cost of these issues can vary depending on the specific problem and the necessary repairs.