2020 Cadillac CT6

Introduction

The 2020 Cadillac CT6 is a full-size luxury sedan that comes standard with a 2.0-liter turbocharged inline-four engine producing 237 horsepower and 258 lb-ft of torque. Other engine options include a 3.0-liter twin-turbocharged V6 with 404 horsepower and 400 lb-ft of torque, and a 3.6-liter V6 with 335 horsepower and 284 lb-ft of torque. The standard transmission is a 10-speed automatic, with an optional eight-speed automatic available for the 3.0-liter V6.

The CT6 is praised for its luxurious interior, spacious cabin, and responsive handling. However, it has received criticism for its lackluster fuel economy and infotainment system issues.

Engine

2.0-liter Turbocharged Inline-Four

• Intake Manifold Failure:
  • Description/Symptoms: Loss of power, rough idling, engine misfires
  • Solution: Replacing the intake manifold
  • Estimated Cost to Fix: $1,000 - $2,000+
  • Recalls: #20V555

3.0-liter Twin-Turbocharged V6

• Turbocharger Wastegate Actuator Failure:
  • Description/Symptoms: Excessive boost pressure, reduced engine power
  • Solution: Replacing the turbocharger wastegate actuator
  • Estimated Cost to Fix: $800 - $1,200
  • Recalls: None Found

3.6-liter V6

• No Issues Found

Transmission

10-Speed Automatic

• Shifting Delay:
  • Description/Symptoms: Slow or delayed gear changes, especially when shifting down
  • Solution: Updating the transmission software
  • Estimated Cost to Fix: $0
  • Recalls: None Found

Eight-Speed Automatic

• Transmission Slippage:
  • Description/Symptoms: Loss of power, inability to shift into gear
  • Solution: Replacing the transmission
  • Estimated Cost to Fix: $5,000 - $8,000+
  • Recalls: #20V555

Suspension

• Air Suspension Failure:
  • Description/Symptoms: Difficulty adjusting ride height, erratic suspension behavior
  • Solution: Replacing the air suspension components (e.g., compressor, struts)
  • Estimated Cost to Fix: $1,500 - $3,000+
  • Recalls: #20V441

Electrical

• Infotainment System Lag:
  • Description/Symptoms: Slow or unresponsive infotainment screen, difficulty using features
  • Solution: Updating the software or replacing the infotainment system
  • Estimated Cost to Fix: $0 - $1,000+
  • Recalls: None Found
• Battery Drain:
  • Description/Symptoms: Difficulty starting the car, battery dies frequently
  • Solution: Replacing the battery, checking for electrical drains (e.g., faulty module, parasitic drain)
  • Estimated Cost to Fix: $200 - $600+
  • Recalls: None Found

Exterior

• Headlight Condensation:
  • Description/Symptoms: Moisture forms inside the headlight lenses
  • Solution: Resealing or replacing the headlights
  • Estimated Cost to Fix: $400 - $800
  • Recalls: None Found
• Door Handle Corrosion:
  • Description/Symptoms: Door handles become corroded, making them difficult to open
  • Solution: Replacing the door handles
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found

Interior

• Panoramic Sunroof Rattle:
  • Description/Symptoms: Rattling or creaking noises from the panoramic sunroof
  • Solution: Adjusting or replacing the sunroof assembly
  • Estimated Cost to Fix: $500 - $1,000
  • Recalls: None Found
• Climate Control Malfunction:
  • Description/Symptoms: Difficulty controlling temperature or airflow, excessive noise from climate control system
  • Solution: Replacing the climate control module, repairing electrical connections
  • Estimated Cost to Fix: $300 - $800
  • Recalls: None Found

Summary

While the 2020 Cadillac CT6 is a luxurious and spacious vehicle, it has experienced numerous issues, including engine problems, transmission failures, suspension malfunctions, electrical issues, and exterior and interior defects. The severity of these issues varies, but some, such as transmission slippage and engine failures, can be costly to repair. Potential buyers should be aware of these problems and consider the potential maintenance and repair costs before purchasing a CT6.