What are the most common Cadillac CT6 problems?

According to Au7o's analysis of 350+ owner reports, the 2016-2020 Cadillac CT6 has 5 documented issues. The most frequently reported are: Magnetic Ride Control Shock Absorber Premature Failure, 4.2L Blackwing Twin-Turbo V8 Intercooler Coolant Leak, Rear Camera Mirror Display Flickering and Washout. Of these, 2 are rated critical and should be addressed promptly.

Is the Cadillac CT6 reliable?

The 2016-2020 Cadillac CT6 has 5 known issues documented across 350+ owner reports. 2 issues are rated critical: Magnetic Ride Control Shock Absorber Premature Failure and 4.2L Blackwing Twin-Turbo V8 Intercooler Coolant Leak. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Cadillac CT6 problems?

Repair costs for known Cadillac CT6 issues range from $0 to $4,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Magnetic Ride Control Shock Absorber Premature Failure, typically costs $1,500-$4,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What year Cadillac CT6 is the most reliable?

Reliability varies across model years of the Cadillac CT6. Based on owner reports, issues are most commonly reported in earlier model years. Au7o recommends checking the specific known issues for your target year before purchasing, and having a pre-purchase inspection performed by a qualified mechanic. Our known issues database covers the 2016-2020 Cadillac CT6 with 5 documented issues from 350+ owner reports.

Cadillac CT6 Problems: 5 Issues Every Owner Should Know

Cadillac CT6 Problems: 5 Issues Every Owner Should Know | Au7o

⚠️NHTSA Recalls8 recalls

TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS

General Motors LLC (GM) is recalling certain 2020 Cadillac CT6 vehicles equipped with dealer-installed accessory 20" x 8.50" wheels (RPO 5JO or SHH). The tire pressure monitoring system (TPMS) sensors use the incorrect wireless radio frequency and cannot illuminate the low pressure warning light when the tire pressure drops below the recommended level. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 138, "Tire Pressure Monitoring Systems."

Campaign #19V73100015/10/2019

POWER TRAIN:AUTOMATIC TRANSMISSION

General Motors LLC (GM) is recalling certain 2019-2020 Cadillac CT6, 2020-2021 CT4, CT5, and 2020-2022 Chevrolet Camaro vehicles equipped with a 10-speed transmission. The transmission may become damaged internally and cause the wheels to lock-up.

Campaign #25V14800006/03/2025

SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT

General Motors LLC (GM) is recalling certain 2019 Chevrolet Silverado 1500, Cadillac CT6, and GMC Sierra 1500 vehicles. Due to an Electronic Brake Control Module (EBCM) software error, the vehicle's Electronic Stability Control (ESC) and Antilock Brake System (ABS) may become disabled. Furthermore, if this specific error occurs, the vehicle's diagnostics will not illuminate the instrument cluster ESC and ABS malfunction warning lights. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 126, "Electronic Stability Control" and 135, "Light Vehicle Brake Systems."

Campaign #19V88900012/12/2019

EXTERIOR LIGHTING:TURN SIGNAL:SWITCH

General Motors LLC (GM) is recalling certain 2019 Cadillac CT6 vehicles. Rotation of the steering wheel will not automatically cancel the turn-signals from flashing. As such, these vehicles fail to comply with Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices and Associated Equipment."

Campaign #19V11700021/02/2019

SEAT BELTS:REAR/OTHER

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 automatically lock when the seatbelt is fully pulled out of the retractor, possibly preventing a child seat from being properly secured. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 208, "Occupant Crash Protection."

Campaign #18V67300026/09/2018

+ 3 more recalls. Check all on NHTSA.gov

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Cadillac CT6 Problems: 5 Issues Every Owner Should Know

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Frequently Asked Questions

What are the most common Cadillac CT6 problems?

Is the Cadillac CT6 reliable?

How much does it cost to fix common Cadillac CT6 problems?

What year Cadillac CT6 is the most reliable?